Ariens 911044 Walk Behind Lawn Mower Instruction Manual

May 15, 2024
ARIENS

Ariens 911044 Walk Behind Lawn Mower

Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(35\)

Product Information

The product is a mower with various components and systems. It includes a mower deck, handlebars and controls, electrical system, friction drive system and axle, and gear drive system and axle.

Product Usage Instructions

Section 1 – Introduction

Before operating the unit, it is important to read the manuals carefully. The manuals provide safety instructions and controls during normal operation and maintenance. The directions for left, right, front, or rear are given from the operation position, facing the direction of forward travel.

Section 3 – Specifications

This section provides detailed specifications of the product. Refer to this section for information on the specifications of the unit.

Section 4 – General Maintenance & Adjustments

This section covers general maintenance and adjustments that may be required for the product. It provides instructions on how to properly maintain and adjust the unit.

Section 6 – Mower Deck

This section focuses on the mower deck of the product. It includes instructions on blade brake/clutch removal, drive belt replacement, idler removal, and wheels and adjusters.

Section 7 – Handlebars & Controls

This section provides information on the handlebars and controls of the product. It includes instructions on handlebars and bails, as well as speed control bell crank.

Section 8 – Electrical

This section covers the electrical system of the product. It includes instructions on the battery for electric start models, wiring diagram, and continuity diagram.

Section 9 – Friction Drive System & Axle

This section focuses on the friction drive system and axle of the product. It includes instructions on gear removal, axle removal, drive mount removal, drive mount disassembly, friction wheel replacement, and drive disk removal.

Section 10 – Gear Drive System & Axle

This section covers the gear drive system and axle of the product. It includes instructions on transmission replacement.

FAQ

  1. How often should I perform general maintenance on the mower?
  2. Can I use the mower without the electric start battery?
  3. What should I do if I need replacement parts?
  4. Are there any safety precautions I should follow while using the mower?

INTRODUCTION

THE MANUAL

Before operation of unit, carefully and completely read your manuals. The contents will provide you with an understanding of safety instructions and controls during normal operation and maintenance.
All reference to left, right, front, or rear are given from the operation position, facing the direction of forward travel.

SERVICE AND REPLACEMENT PARTS

When ordering replacement parts or making service inquiries, know the Model and Serial numbers of your unit and engine.
Numbers are located on the product registration form in the unit literature package. They are also printed on a serial number label, located on the frame of your unit (Figure 1).

PRODUCT REGISTRATION
A warranty registration card must be filled out by the Ariens dealer, signed, and returned at time of sale. This card activates the warranty. Claims meeting requirements during limited warranty period will be honored.

UNAUTHORIZED REPLACEMENT PARTS

Use only Ariens replacement parts. The replacement of any part on this unit with anything other than Ariensauthorized replacement parts may adversely affect the performance, durability, or safety of this unit and may void the warranty. Ariens disclaims liability for any claims or damages, whether warranty, property damage, personal injury, or death arising out of the use of unauthorized replacement parts.

DISCLAIMER
Ariens reserves the right to discontinue, make changes to, and add improvements upon its products at any time without public notice or obligation. The descriptions and specifications contained in this manual were in effect at printing. Equipment described within this manual may be optional. Some illustrations may not be applicable to your unit.

TECHNICAL SERVICE COMMUNICATIONS

  • Ariens Technical Service communicates information to the field using Service Letters, Service Bulletins, Product Notices, and Campaigns. Each communication signifies a type of information and priority. The dealer is responsible to carry out the directive provided in the communication. The types of communication are:
  • Service Letter – General technical information for the dealer. Technical information on how to service the product and product improvements.
  • Service Bulletin – Notification to update products toresolve certain issues or a notification of a policy change.
  • Product Notices – Notification of limited product located in a certain region. This is a limited distribution to only those who received the product involved.
  • Campaigns – Notification of a safety related issue. All product must be updated and are tracked by the factory until all units are corrected.

SAFETY ALERTS

Look for these symbols to point out important safety precautions. They mean:

  • Attention!
  • Personal Safety Is Involved!
  • Become Alert!
  • Obey The Message!

SIGNAL WORDS

  • The safety alert symbol is used in decals on the unit and with proper operation procedures in this manual. They alert you to the existence and relative degree of hazards.
  • Understand the safety message. It contains important information about personal safety on or near the unit.

DANGER : IMMINENTLY HAZARDOUS SITUATION! If not avoided, WILL RESULT in death or serious injury.
WARNING : POTENTIALLY HAZARDOUS SITUATION! If not avoided, COULD RESULT in death or serious injury.
CAUTION : POTENTIALLY HAZARDOUS SITUATION! If not avoided, MAY RESULT in minor or moderate injury. It may also be used to alert against unsafe practices.

NOTATIONS

NOTE : General reference information for proper operation and maintenance practices.
IMPORTANT : Specific procedures or information required to prevent damage to unit or attachment.

PRACTICES AND LAWS

Practice usual and customary safe working precautions, for the benefit of yourself and others. Understand and follow all safety messages. Be alert to unsafe conditions and the possibility of minor, moderate, or serious injury or death. Learn applicable rules and laws in your area.

REQUIRED OPERATOR TRAINING

Original purchaser of this unit was instructed by the seller on safe and proper operation. If unit is to be used by someone other than original purchaser; loaned, rented or sold, ALWAYS provide this manual and any needed safety training before operation.

PREPARATION

  • Before starting any removal of parts, proper preparation is very important for efficient work. A clean work area at the start of each job will allow you to perform service repairs easily and quickly.
  • To reduce the incidence of misplaced tools or parts, place removed components with all attaching hardware in the disassembly order on a clean work surface.
  • Organization is a key part of proper reassembly.
  • Tools, instruments, and parts needed for the job should be gathered before work is started. Interrupting a job to locate tools or parts is a needless delay.

CAUTION : Remove enough fuel so that no spillage will occur. Remove battery to prevent spillage of electrolyte

CLEANING AND STORAGE

WARNING : AVOID SHARP EDGES which can cut. Movement of parts can cut off fingers or a hand. Wear gloves, and use extreme caution when servicing
IMPORTANT : Never spray unit with water or store unit outdoors to help prevent sealed bearing rust or corrosion. Water can seep into sealed bearings and reduce component life. Bearings are sealed against dirt and debris only.
A unit that is excessively dirty should be cleaned before work starts. Cleaning will occasionally uncover trouble sources. Dirt and abrasive dust reduce the efficient work life of parts and can lead to costly replacement.

When taking unit out of extended storage:

  1. Check for any damage or loose parts. Repair, replace, or tighten hardware before operation.
  2. If a preservative fluid was used in fuel tank, drain and discard. Fill fuel tank with fresh new fuel

SAFETY RULES
Walk Around Inspection Complete a walk around inspection of unit and work area to understand:

  • Work area.
  • Your unit.
  • All safety decals

Work Area

  • ALWAYS check overhead and side clearances carefully before operation. ALWAYS be aware of traffic when operating along streets or curbs.
  • ALWAYS keep hands and feet within the limits of the unit.
  • Keep children, people, and animals away. Keep children out of work area and under watchful care of a responsible adult.
  • Keep area of operation clear of all toys, pets, and debris. Stay alert for hidden hazards.
  • Clear work area of objects which might be picked up and thrown. Remove all stones, sticks, wires, and other foreign objects. Tall grass can hide obstacles.
  • DO NOT run engine in an enclosed area. Always provide good ventilation.

Unit

ALWAYS keep protective structures, guards, and panels in good repair, in place and securely fastened. NEVER modify or remove safety devices. Check Safety Interlock System for proper operation daily (see Operation section). Do not operate unless system operates properly. Keep equipment in good condition. ALWAYS keep discharge cover in place. NEVER operate the engine with the Rear Door open unless the Grass Bag is in place.
When mulching, the Side Discharge Opening Cover must be installed and the Rear Door fully closed whenever the engine is operating.

Operation
Understand:

  • How to operate all controls
  • The functions of all controls
  • How to STOP in an Emergency
  • Speed ranges

ALWAYS operate unit in good visibility and light.

  • DO NOT pull the mower backward unless necessary. Look down and back before and while moving backward.
  • DO NOT start the engine or operate the mower unless either the Side Discharge Opening Cover or the Side Discharge Deflector is installed.
  • Keep the area of operation clear of all persons, children and pets.
  • ALWAYS clear area before the operation to avoid throwing objects.
  • Stop mower if anyone enters the area.
  • Keep safety devices or guards in place and functioning properly. NEVER modify or remove safety devices.
  • ALWAYS keep hands away from all rotating parts during operation.
  • Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening and mower pan at all times. NEVER open the Rear Door without the Grass Bag in place when the engine is operating.
  • ALWAYS keep feet and hands away from all rotating parts during operation. Rotating parts can cut off body parts.
  • DO NOT mow at too fast a rate. DO NOT change engine governor setting or over-speed the engine.
  • ALWAYS operate unit when there is good visibility and light.
  • Use extra care when approaching blind corners, shrubs, trees, or other objects which may obscure vision.
  • ALWAYS be sure of your footing.
  • Do not operate the mower in wet grass. Always be sure of your footing. Keep a firm hold on the handlebar. Walk, never run.
  • If equipment vibrates abnormally, stop the engine at once, wait for moving parts to stop, and remove wire from spark plug. Repair any damage before restarting unit.
  • Avoid uneven work areas and any rough terrain.
  • Be familiar with the area of operation. Stay alert for holes, rocks, roots, and hidden hazards in area of operation. Operator could lose footing or balance.
  • DO NOT operate on steep slopes.
  • NEVER leave the unit unattended on a slope. Chock wheels if parking on a slope.
  • Mow across the face of slopes, never up and down. Be especially cautious when changing direction on slopes.
  • Remove the key when parking.
  • Take all possible precautions when leaving unit unattended.
  • ALWAYS shut off engine, remove key and remove spark plug wire to prevent accidental starting or unauthorized use.
  • Fuel is highly flammable and its vapors can explode. Use ONLY approved fuel containers.
  • NO Smoking!
  • NO Sparks!
  • NO Flames!
  • Allow engine to cool before servicing.
  • NEVER fill fuel tank when engine is running, hot, or unit is indoors.
  • Abnormal Vibrations are a warning of trouble. Striking a foreign object can damage unit. Stop unit and engine. Wait for all moving parts to stop. Remove wire from spark plug. Inspect unit and make any necessary repairs before restart.

Hazardous Slopes
DO NOT operate on steep slopes. Avoid operating on slopes. When you must operate on a slope, travel up and down the slope. Never operate cross a slope. Never operate on a slope greater than 10 degrees.

Child Safety
NEVER allow children to operate or play on or near unit. Be alert and shut off unit if children enter area.

Personal Safety
Read and obey all warning, caution, and instructions on the unit and in provided manuals.

  • Only trained adults may operate unit.
  • Training includes actual operation.
  • Clearly understand instructions.
  • Be alert! Conditions can change.
  • NEVER operate unit after or during the use of medication, drugs or alcohol. Safe operation requires your complete and unimpaired attention at all times.
  • NEVER allow anyone to operate the unit when their alertness or coordination is impaired.
  • Avoid Sharp Edges. Sharp edges can cut. Moving parts can cut or amputate fingers or a hand. Wear gloves to service unit when handling sharp edges.
  • ALWAYS keep hands away from any pinch points.
  • ALWAYS keep hands and feet away from all moving parts during operation. Moving parts can cut off body parts.
  • DO NOT touch unit parts which might be hot from operation. Allow parts to cool before attempting to maintain, adjust, or service.
  • Keep children out of work area and under the watchful care of an adult.
  • NEVER allow children to operate mower.
  • Turn the mower off if children enter the area.
  • NEVER direct discharge toward bystanders. The operator is responsible for the safety of bystanders.
  • Wear adequate safety gear, protective gloves and footwear.
  • Wear sturdy footwear. DO NOT operate mower barefoot or when wearing open sandals or canvas shoes.
  • Always wear safety goggles or safety glasses with side shields when operating mower.
  • NEVER wear loose clothing, jewelry or long hair that may get caught in rotating parts. Protect eyes, face and head from objects that may be thrown from unit.
  • ALWAYS stand clear of discharge when operating unit.
  • Do not operate mower on gravel or on loose material such as sand. Stop mower when crossing gravel drives, walks, or roads, Objects may be picked up and thrown, causing damage or injury.
  • Fumes from the engine exhaust can cause death or serious injury. DO NOT run engine in an enclosed area.

Service and Adjustments

  • NEVER attempt to make any adjustments to unit while engine is running. Stop the engine, remove the key, disconnect the spark plug wire and wait for all moving parts to stop before servicing (except where specifically recommended).
  • DO NOT make cutting height wheel adjustments while the engine is running.
  • On self-propelled models, the wheel drive control will cause the forward movement of the mower to stop. If this feature fails to operate, disconnect the ignition wire and repair it before using. Wheel drive must be disengaged when starting engine.
  • Fuel is highly flammable and its vapors can explode. ONLY use approved fuel containers.
    • NO Smoking!
    • NO Sparks!
    • NO Flames!
    • Allow the engine to cool before filling fuel tank.
  • Check the fuel supply before starting the engine.
  • DO NOT fill the gasoline tank indoors, when the engine is running, or while engine is still hot.
  • Allow the engine to cool for several minutes before removing fuel cap.
  • Replace the gasoline tank cap securely and clean up any spilled fuel before starting the engine.
  • Stop the engine, wait for moving parts to stop, remove the ignition wire, and secure away from spark plug before attempting to: unclog, repair, adjust, inspect or clean unit.
  • To reduce fire hazards and overheating, keep equipment free of grass, leaves, debris or excessive lubricants.

Battery

  • Avoid Electric Shock. DO NOT remove wire from the spark plug while the engine is running. Do not put the battery in fire or mutilate it.
  • Explosive Gases! Poisonous battery fluid contains sulfuric acid. Contact with skin, eyes or clothing can cause severe chemical burns.
  • No flames, No Sparks, No smoking, near the battery.
  • ALWAYS wear safety glasses and protective gear near the battery.
  • ALWAYS KEEP BATTERIES OUT OF REACH of children.

Maintenance

  • Follow engine manufacturer’s safety instructions when servicing engine.
  • Keep all nuts, bolts, and screws tight and be sure the equipment is in safe working condition. Check all hardware at regular intervals, especially blade attachment bolts.
  • Use only replacement parts designed for your unit. See your Ariens Dealer.
  • Worn-out mufflers are more than just a noise nuisance and should be replaced immediately. Continued use could result in fire or explosion.
  • ALWAYS block wheels and know all jack stands are strong and secure and will hold weight of unit during maintenance.
  • Check grass bag for wear, damage, and/or deterioration. Replace only with Ariens original equipment replacement part for safety.

Storage

Allow the engine to cool before storing in any enclosure.
Refer to the Storage Section of the Owner’s Manual for important instructions if unit is to be stored for extended periods.
ALWAYS clean unit before extended storage. See engine manual for proper storage.
DO NOT store unit before extended storage. See engine manual for proper storage.
DO NOT store unit inside a building with fuel in the fuel tank where ignition sources are present.

Safety Interlock System
Engine/Blade Control feature on the mower will cause engine and blade to stop whenever the operator releases control on the handlebar. If the feature fails to operate, disconnect spark plug wire and adjust or have it repaired before using unit.

Accessories
Use only accessories that have been approved by Ariens and are properly installed.

Spark Arrestor

This product is equipped with an internal combustion engine. DO NOT use on or near any unimproved, forest or brush covered land unless the exhaust system is equipped with a spark arrestor meeting applicable local, state or federal laws. A spark arrestor, if used, must be maintained in effective working order by the operator. See your Ariens Dealer or engine manufacturer’s service center.

SPECIFICATIONS

Model Number 911044 911045 911046 911047
Description Name LM214SP LM219SP LM217SP LM21SB
Engine Manufacture Tecumseh Briggs Tecumseh Tecumseh
Cycles Four Four Four Four
HP (3600RPM) 5.5 5 5.5 5.5
Fuel Tank Capacity – qt (L) 1.5 (1.4) 1.6 (1.5) 1.5 (1.4) 1.5 (1.4)
Fuel Unleaded Unleaded Unleaded Unleaded
Primer Bulb Standard Standard Standard Standard
Throttle/Choke Control N/A N/A N/A N/A
Starting Recoil Recoil Recoil Recoil
Cylinder Bore Aluminum Aluminum Aluminum Aluminum
Pressurized Oil System Standard N/A Standard N/A
Governed RPM 2850+/-150 2900 2850+/-150 2900
Crank Case Capacity – oz (L) 27 (0.8) 20 (0.6) 27 (0.8) 27 (0.8)
Air Cleaner Paper Element Paper Element Paper Element Paper Element
Engine Oil Type SAE 30 SAE 30 SAE 30 SAE 30
Spark Plug Gap 0.03 0.03 0.03 0.03
Differential Standard Standard Standard Standard
Variable Speeds-MPH (KPH) 0-3.5 (0-5.6) 0-3.5 (0-5.6) 0-3.5 (0-5.6)

0-3.5 (0-5.6)
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| Standard| Standard
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| With Kit| With Kit| With Kit| With Kit
Attachments ( denotes it comes with unit)
Dethatcher| 71102400| 71102400| 71102400| 71102400
Mulchmaster Package| 71102700| 71102700| 71102700| 71102700
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute| 71102900| 71102900| 71102900| 71102900
Rear Bagger| 71103000| 71103000| 71103000| 71103000
Swivel Wheel Kit| 71103300| 71103300| 71103300| 71103300
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit| 71103500| 71103500| 71103500| 71103500
Model Number| 911048| 911049| 911050| 911051
---|---|---|---|---
Description Name| LM21SC| LM21| LM21S| LM21
Engine Manufacture| Briggs| Tecumseh| Tecumseh| Tecumseh
Cycles| Four| Four| Four| Four
HP (3600RPM)| 5| 5| 5| 5.5
Fuel Tank Capacity – qt (L)| 1.6 (1.5)| 1 (0.9)| 1 (0.9)| 1.5 (1.4)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| Standard| Standard| Standard| Standard
Throttle/Choke Control| | | |
Starting| Recoil| Recoil| Recoil| Recoil
Cylinder Bore| Cast Iron Sleeve| Aluminum| Aluminum| Aluminum
Pressurized Oil System| N/A| N/A| N/A| N/A
Governed RPM| 2850| 2850| 2850| 2850
Crank Case Capacity – oz (L)| 20 (0.6)| 21 (0.6)| 21 (0.6)| 27 (0.8)
Air Cleaner| Dual Element| Paper Element| Paper Element| Paper Element
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| Standard| N/A| Standard| N/A
Variable Speeds-MPH (KPH)| 0-3.5 (0-5.6)| N/A| 0-3.5 (0-5.6)| N/A
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| Standard| Standard
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| With Kit| With Kit| With Kit| With Kit
Attachments (
denotes it comes with unit)

Dethatcher| 71102400| 71102400| 71102400| N/A
Mulchmaster Package| 71102700| 71102700| 71102700| 71102700
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute| 71102900| 71102900| 71102900| 71102900
Rear Bagger| | 71103000| 71103000| 71103000
Swivel Wheel Kit| 71103300| 71103300| 71103300| 71103300
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit| 71103500| 71103500| 71103500| 71103500
Model Number| 911052| 911053| 911054| 911055
---|---|---|---|---
Description Name| LM216S| LM21C| LM21| AP211 SP
Engine Manufacture| Tecumseh| Briggs| Briggs| Tecumseh
Cycles| Four| Four| Four| Four
HP (3600RPM)| 5.5| 5.5| 5.5| 5.5
Fuel Tank Capacity – qt (L)| 1.5 (1.4)| 1.6 (1.5)| 1 (0.9)| 1.5 (1.4)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| Standard| Standard| N/A| Standard
Throttle/Choke Control| | | |
Starting| Recoil| Recoil| Recoil| Recoil
Cylinder Bore| Aluminum| Cast Iron Sleeve| Aluminum| Aluminum
Pressurized Oil System| N/A| N/A| N/A| N/A
Governed RPM| 2850| 2900| 3200| 2850
Crank Case Capacity – oz (L)| 27 (0.8)| 20 (0.6)| 20 (0.6)| 21 (0.6)
Air Cleaner| Paper Element| Dual Element| Paper Element| Paper Element
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| Standard| N/A| N/A| Standard
Variable Speeds-MPH (KPH)| 0-3.5 (0-5.6)| N/A| N/A| 0-3.5 (0-5.6)
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| Standard| Standard
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| With Kit| With Kit| With Kit| With Kit
Attachments ( denotes it comes with unit)
Dethatcher| N/A| N/A| N/A| N/A
Mulchmaster Package| 71102700| 71102700| 71102700| 71102700
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute| 71102900| 71102900| N/A| N/A
Rear Bagger| 71103000| 71103000| N/A| N/A
Swivel Wheel Kit| 71103300| 71103300| N/A| N/A
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| N/A| N/A
Mulching Kit| 71103500| 71103500| N/A| N/A
Model Number| 911056| 911057| 911058| 911059
---|---|---|---|---
Description Name| AP212 SP| LM2178 SP| AP 210| LM220 SP
Engine Manufacture| Tecumseh| Briggs| Tecumseh| Tecumseh
Cycles| Four| Four| Four| Four
HP (3600RPM)| 4.5| 5| 4| 5.5
Fuel Tank Capacity – qt (L)| 1.5 (1.4)| 1.6 (1.5)| 1.5 (1.4)| 1.5 (1.4)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| Standard| Standard| Standard| Standard
Throttle/Choke Control| | | |
Starting| Recoil| Recoil| Recoil| Recoil
Cylinder Bore| Aluminum| Cast Iron Sleeve| Aluminum| Cast Iron Sleeve
Pressurized Oil System| N/A| N/A| N/A| N/A
Governed RPM| 2850| 2900| 3200| 2850
Crank Case Capacity – oz (L)| 21 (0.6)| 20 (0.6)| 21 (0.6)| 27 (0.8)
Air Cleaner| Paper Element| Dual Element| Paper Element| Dual Element
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| Standard| Standard| N/A| Standard
Variable Speeds-MPH (KPH)| 0-3.5 (0-5.6)| 0-3.5 (0-5.6)| N/A| 0-3.5 (0-5.6)
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)| 1.2-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| Standard| Standard
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| With Kit| With Kit| With Kit| With Kit
Attachments (
denotes it comes with unit)

Dethatcher| N/A| N/A| N/A| 71102400
Mulchmaster Package| 71102700| 71102700| 71102700| 71102700
Leaf Shredder| 71102800| N/A| 71102800| 71102800
Side Discharge Chute| N/A| 71102900| N/A| 71102900
Rear Bagger| N/A| N/A| N/A| 71103000
Swivel Wheel Kit| N/A| 71103300| N/A| 71103300
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| N/A| 71103400| N/A| 71103400
Mulching Kit| N/A| 71103500| N/A| 71103500
Model Number| 911060| 911061| 911062| 911064
---|---|---|---|---
Description Name| LM221| LM222SP| MM221SP| MM210
Engine Manufacture| Tecumseh| Tecumseh| Tecumseh| Tecumseh
Cycles| Four| Four| Four| Four
HP (3600RPM)| 5.0| 6.0| 5.0| 4.5
Fuel Tank Capacity – qt (L)| 1.5 (1.4)| 1.0 (0.9)| 1.5 (1.4)| 1.5 (1.4)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| Standard| Standard| Standard| Standard
Throttle/Choke Control| N/A| N/A| N/A| N/A
Starting| Recoil| Recoil| Recoil| Recoil
Cylinder Bore| Aluminum| Cast Iron Sleeve| Aluminum| Aluminum
Pressurized Oil System| Standard| Standard| Standard| Standard
Governed RPM| 2850+/-150| 2850+/-150| 2850+/-150| 2850+/-150
Crank Case Capacity – oz (L)| 27 (0.8)| 21 (0.62)| 21 (0.62)| 21 (0.62)
Air Cleaner| Paper Element| Paper Element| Paper Element| Paper Element
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| N/A| Standard| Standard| N/A
Variable Speeds-MPH (KPH)| N/A| 0-3.5 (0-5.6)| 0-3.5 (0-5.6)| N/A
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 16 Gauge Stamped Steel| 16 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| N/A| N/A
Bagger| Standard| Standard| Optional| Optional
Mulching Capability| Standard| Standard| Standard| Standard
Attachments (* denotes it comes with unit)
Dethatcher| N/A| 71102400| 71102400| N/A
Mulchmaster Package| | | 71102700| 71102700
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute| | | N/A| N/A
Rear Bagger| | | 71103000| 71103000
Swivel Wheel Kit| 71103300| 71103300| 71103300| 71103300
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit| 71103500| 71103500| |
Model Number| 911065| 911067| 911068| 911069
---|---|---|---|---
Description Name| LM230SP| MM223| MM224SP| DLM225SP
Engine Manufacture| Kawasaki| Tecumseh| Tecumseh| Briggs & Stratton
Cycles| Four| Four| Four| Four
HP (3600RPM)| 5.0| 5.0| 5.5| 5.5
Fuel Tank Capacity – qt (L)| 1.4 (1.3)| 1.5 (1.4)| 1.5 (1.4)| 1.6 (1.5)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| N/A| Standard| Standard| Standard
Throttle/Choke Control| Standard| N/A| N/A| N/A
Starting| Recoil| Recoil| Recoil| Recoil
Cylinder Bore| Cast Iron Sleeve| Aluminum| Aluminum| Cast Iron Sleeve
Pressurized Oil System| Standard| Standard| Standard| Standard
Governed RPM| 2850+/-150| 2850+/-150| 2850+/-150| 2900+/-100
Crank Case Capacity – oz (L)| 19 (0.56)| 27 (0.8)| 27 (0.8)| 20 (0.6)
Air Cleaner| Dual Element| Paper Element| Paper Element| Dual Clean
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| Standard| N/A| Standard| Standard
Variable Speeds-MPH (KPH)| 0-4.0 (0-6.4)| N/A| 0-3.5 (0-5.6)| 0-4 (0-6.4)
Mower Deck Gauge| 14 Gauge Stamped Steel| 16 Gauge Stamped Steel| 16 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.0 (17.8)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.0 (25.4)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| N/A| N/A| Standard
Bagger| Standard| Optional| Optional| Standard
Mulching Capability| Standard| Standard| Standard| Standard
Attachments (* denotes it comes with unit)

Dethatcher| 71102400| N/A| 71102400| 71102400
Mulchmaster Package| | | |
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute| | N/A| N/A|
Rear Bagger| | 71103000| 71103000|
Swivel Wheel Kit| 71103300| 71103300| 71103300| 71103300
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit| 71103500| 71103500| 71103500| 71103500
Model Number| 911070| 911071| 911072| 911073
---|---|---|---|---
Description Name| DLM226SP| DLM227SP| DLM228SP| DLM229SP
Engine Manufacture| Briggs & Stratton| Tecumseh| Tecumseh| Tecumseh
Cycles| Four| Four| Four| Four
HP (3600RPM)| 5.5| 6.0| 6.0| 6.0
Fuel Tank Capacity – qt (L)| 1.6 (1.5)| 1.5 (1.4)| 1.5 (1.4)| 1.5 (1.4)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| Standard| Standard| Standard| Standard
Throttle/Choke Control| N/A| N/A| N/A| N/A
Starting| Recoil| Electric/Recoil| Recoil| Recoil
Cylinder Bore| Cast Iron Sleeve| Aluminum| Aluminum| Aluminum
Pressurized Oil System| Standard| Standard| Standard| Standard
Governed RPM| 2900+/-100| 2850+/-150| 2850+/-150| 2850+/-150
Crank Case Capacity – oz (L)| 20 (0.6)| 27 (0.8)| 27 (0.8)| 27 (0.8)
Air Cleaner| Dual Element| Paper Element| Paper Element| Paper Element
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| Standard| Standard| Standard| Standard
Variable Speeds-MPH (KPH)| 0-4.0 (0-6.4)| 0-4.0 (0-6.4)| 0-4 (0-6.4))| 0-4 (0-6.4)
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.0 (17.8)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.0 (25.4)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| Standard| Standard
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| Standard| Standard| Standard| Standard
Attachments (* denotes it comes with unit)
Dethatcher| N/A| N/A| 71102400| N/A
Mulchmaster Package| | | |
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute| | | |
Rear Bagger| | | |
Swivel Wheel Kit*| | | 71103300|
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit| 71103500| 71103500| 71103500| 71103500
Model Number| 911075| 911076| 911077| 911078
---|---|---|---|---
Description Name| DLM21SEW| | | DLM21SEW
Engine Manufacture| Tecumseh| Tecumseh| Tecumseh| Tecumseh
Cycles| Four| Four| Four| Four
HP (3600RPM)| 6.0| 5.5| 5.5| 6.0
Fuel Tank Capacity – qt (L)| 1.5 (1.4)| 1.5 (1.4)| 1.5 (1.4)| 1.5 (1.4)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| Standard| Standard| Standard| Standard
Throttle/Choke Control| N/A| N/A| N/A| N/A
Starting| Electric/Recoil| Recoil| Electric/Recoil| Electric/Recoil
Cylinder Bore| Aluminum| Aluminum| Aluminum| Aluminum
Pressurized Oil System| Standard| Standard| Standard| Standard
Governed RPM| 2850+/-150| 2850+/-150| 2850+/-150| 2850+/-150
Crank Case Capacity – oz (L)| 27 (0.8)| 27 (0.8)| 27 (0.8)| 27 (0.8)
Air Cleaner| Paper Element| Paper Element| Paper Element| Paper Element
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| Standard| Standard| Standard| Standard
Variable Speeds-MPH (KPH)| 0-4 (0-6.4)| 0-3.5 (0-5.6)| 0-3.5 (0-5.6)| 0-4 (0-6.4)
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.5 (19.1)| 7.0 (17.8)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.5 (26.7)| 10.0 (25.4)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| Standard| Standard
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| Standard| With Kit| With Kit| Standard
Attachments (* denotes it comes with unit)
Dethatcher| N/A| 71102400| 71102400| N/A
Mulchmaster Package| | 71102700| 71102700|
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute| | 71102900| 71102900|
Rear Bagger| | 71103000| 71103000|
Swivel Wheel Kit| | 71103300| 71103300|
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit| 71103500| 71103500| 71103500| 71103500
Model Number| 911079| 911080| 911081| 911082
---|---|---|---|---
Description Name| DLM21S| DLM21SW| SLM21| SLM21S
Engine Manufacture| Tecumseh| Tecumseh| Tecumseh| Tecumseh
Cycles| Four| Four| Four| Four
HP (3600RPM)| 6.0| 6.0| 5.0| 5.5
Fuel Tank Capacity – qt (L)| 1.5 (1.4)| 1.5 (1.4)| 1.5 (1.4)| 1.5 (1.4)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| Standard| Standard| Standard| Standard
Throttle/Choke Control| N/A| N/A| N/A| N/A
Starting| Recoil| Recoil| Recoil| Recoil
Cylinder Bore| Aluminum| Aluminum| Aluminum| Aluminum
Pressurized Oil System| Standard| Standard| Standard| Standard
Governed RPM| 2800+/-200| 2800+/-200| 3150+/-200| 3150+/-200
Crank Case Capacity – oz (L)| 27 (0.8)| 27 (0.8)| 27 (0.8)| 27 (0.8)
Air Cleaner| Paper Element| Paper Element| Paper Element| Paper Element
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| Standard| Standard| N/A| Standard
Variable Speeds-MPH (KPH)| 0-4 (0-6.4)| 0-4 (0-6.4)| N/A| 0-3.5 (0-5.6)
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 16 Gauge Stamped Steel| 16 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.5 (19.1)| 7.0 (17.8)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.5 (26.7)| 10.0 (25.4)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| N/A| N/A
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| Standard| Standard| Standard| With Kit
Attachments (* denotes it comes with unit)
Dethatcher| 71102400| N/A| N/A| 71102400
Mulchmaster Package| | | |
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute| | | N/A| N/A
Rear Bagger| | | |
Swivel Wheel Kit| 71103300| *| 71103300| 71103300
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit| 71103500| 71103500| 71103500| 71103500
Model Number| 911083| 911084| 911304| 911311
---|---|---|---|---
Description Name| DLM21C| DLM21SC| LM21| LM21S
Engine Manufacture| Robin| Robin| Briggs & Stratton| Briggs & Stratton
Cycles| Four| Four| Four| Four
HP (3600RPM)| 6.0| 6.0| 5.0| 5.0
Fuel Tank Capacity – qt (L)| 1.5 (1.4)| 1.5 (1.4)| 1.5 (1.4)| 1.5 (1.4)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| N/A| N/A| N/A| N/A
Throttle/Choke Control| Standard| Standard| Standard| Standard
Starting| Recoil| Recoil| Recoil| Recoil
Cylinder Bore| Cast Iron Sleeve| Cast Iron Sleeve| Aluminum| Aluminum
Pressurized Oil System| Standard| Standard| Standard| Standard
Governed RPM| 2850+/-150| 2850+/-150| 2900+/-100| 2900+/-100
Crank Case Capacity – oz (L)| 17 (0.5)| 17 (0.5)| 20 (0.6)| 20 (0.6)
Air Cleaner| Dual Element| Dual Element| Paper Element| Paper Element
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| N/A| Standard| N/A| Standard
Variable Speeds-MPH (KPH)| N/A| 0-4 (0-6.4)| 0-4 (0-6.4)| 0-4 (0-6.4)
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.0 (17.8)| 7.0 (17.8)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.0 (25.4)| 10.0 (25.4)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| Standard| Standard
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| Standard| Standard| With Kit| With Kit
*Attachments ( denotes it comes with unit)

Dethatcher| N/A| 71102400| N/A| 71102400
Mulchmaster Package| | | 71102700| 71102700
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute| | | |
Rear Bagger| | | |
Swivel Wheel Kit| 71103300| 71103300| 71103300| 71103300
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit| 71103500| 71103500| 71103500| 71103500
Model Number| 911463| 911467| 911468| 911469
---|---|---|---|---
Description Name| DLM239| SLM237| SLM238SP| DLM232SP
Engine Manufacture| Robin| Tecumseh| Tecumseh| Briggs & Stratton
Cycles| Four| Four| Four| Four
HP (3600RPM)| 6.0| 5.0| 5.5| 5.5
Fuel Tank Capacity – qt (L)| 1.5 (1.4)| 1.5 (1.4)| 1.5 (1.4)| 1.6 (1.5)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| N/A| Standard| Standard| Standard
Throttle/Choke Control| Standard| N/A| N/A| N/A
Starting| Recoil| Recoil| Recoil| Recoil
Cylinder Bore| Cast Iron Sleeve| Aluminum| Aluminum| Cast Iron Sleeve
Pressurized Oil System| Standard| Standard| Standard| Standard
Governed RPM| 2900+/-100| 3200+/-150| 3200+/-150| 2900+/-100
Crank Case Capacity – oz (L)| 17 (0.5)| 27 (0.8)| 27 (0.8)| 20 (0.6)
Air Cleaner| Dual Element| Paper Element| Paper Element| Dual Clean
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| N/A| N/A| Standard| Standard
Variable Speeds-MPH (KPH)| N/A| N/A| 0-3.5 (0-5.6)| 0-4 (0-6.4)
Mower Deck Gauge| 14 Gauge Stamped Steel| 16 Gauge Stamped Steel| 16 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.0 (17.8)| 7.5 (19.1)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.0 (25.4)| 10.5 (26.7)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| N/A| N/A| Standard
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| Standard| Standard| Standard| Standard
*Attachments ( denotes it comes with unit)
Dethatcher| N/A| N/A| 71102400| 71102400
Mulchmaster Package| | | |
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute| | N/A| N/A|
Rear Bagger| | | |
Swivel Wheel Kit| 71103300| 71103300| 71103300| 71103300
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit| 71103500| 71103500| 71103500| 71103500
Model Number| 911475| 911509| 911511| 911513
---|---|---|---|---
Description Name| DLM240SP| LM21SCH| LM21SC| LM21
Engine Manufacture| Robin| Robin| Robin| Briggs & Stratton
Cycles| Four| Four| Four| Four
HP (3600RPM)| 6.0| 5.4| 5.3| 4.37
Fuel Tank Capacity – qt (L)| 1.5 (1.4)| 2.0 (1.9)| 2 (1.9)| 22 oz. (0.65)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| N/A| N/A| N/A| Standard
Throttle/Choke Control| Standard| Standard| Standard| N/A
Starting| Recoil| Recoil| Recoil| Recoil
Cylinder Bore| Cast Iron Sleeve| Aluminum| Cast Iron Sleeve| Aluminum
Pressurized Oil System| Standard| Splash| Pressurized| Splash
Governed RPM| 2900+/-100| 3000+/-100| 3000+/-100| 3000+/-100
Crank Case Capacity – oz (L)| 27 (0.8)| 17 (0.5)| 17 (0.5)| 22 (0.65)
Air Cleaner| Dual Element| Dual Element| Dual Element| Paper Element
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| Standard| Standard| Standard| N/A
Variable Speeds-MPH (KPH)**| 0-4 (0-6.4)| 1.55, 2.98, 3.8

(2.48, 4.77, 6.08)

| 0-3.5 (0-5.6)| N/A
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions 1.25-3.5| 6 Positions| 6 Positions
| 1.25-3.5 (3.2-8.9)| 1-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.0 (17.8)| 8 (20.3)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.0 (25.4)| 8 (20.3)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| Standard| Standard
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| Standard| Standard| Standard| Standard
Attachments (* denotes it comes with unit)
Dethatcher| 71102400| 71102400| 71102400| 71102400
Mulchmaster Package*| | 71102700| |
Leaf Shredder| 71102800| 71103700| 71102800| 71102800
Side Discharge Chute| | | |
Rear Bagger| | | |
Swivel Wheel Kit| 71103300| 71104000| 71103300| 71103300
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit| 71103500| 71103500| 71103500| 71103500
Model Number| 911514| 911515| 911516| 911517
---|---|---|---|---
Description Name| LM21S| LM21SE| LM21SW| LM21SC
Engine Manufacture| Briggs & Stratton| Briggs & Stratton| Briggs & Stratton| Robin
Cycles| Four| Four| Four| Four
HP (3600RPM)| 4.37| 4.37| 4.37| 5.3
Fuel Tank Capacity – qt (L)| 22 oz. (0.65)| 22 oz (0.65)| 22 oz (0.65)| 2 (1.9)
Fuel| Unleaded| Unleaded| Unleaded| Unleaded
Primer Bulb| Standard| Standard| Standard| N/A
Throttle/Choke Control| N/A| N/A| N/A| Standard
Starting| Recoil| Electric/Recoil| Recoil| Recoil
Cylinder Bore| Aluminum| Aluminum| Aluminum| Cast Iron Sleeve
Pressurized Oil System| Splash| Splash| Splash| Pressurized
Governed RPM| 3000+/-100| 3000+/-100| 3000+/-100| 3000+/-100
Crank Case Capacity – oz (L)| 22 (0.65)| 22 (0.65)| 22 (0.65)| 17 (0.5)
Air Cleaner| Paper Element| Paper Element| Paper Element| Dual Element
Engine Oil Type| SAE 30| SAE 30| SAE 30| SAE 30
Spark Plug Gap| 0.03| 0.03| 0.03| 0.03
Differential| Standard| Standard| N/A| Standard
Variable Speeds-MPH (KPH)| 0-4 (0-6.4)| 0-4 (0-6.4)| N/A| 0-3.5 (0-5.6)
Mower Deck Gauge| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel| 14 Gauge Stamped Steel
Baked Powder Paint| Standard| Standard| Standard| Standard
Cutting Width – in (cm)| 21 (53.3)| 21 (53.3)| 21 (53.3)| 21 (53.3)
Cutting Height – in (cm)| 6 Positions| 6 Positions| 6 Positions| 6 Positions
| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)| 1.25-3.5 (3.2-8.9)
Folding Handlebar| Standard One Piece| Standard One Piece| Standard One Piece| Standard One Piece
Adjustable Handlebar| 4 Position| 4 Position| 4 Position| 4 Position
Front Wheel Diameter – in (cm)| 7.5 (19.1)| 7.0 (17.8)| 7.5 (19.1)| 7.5 (19.1)
Rear Wheel Diameter – in (cm)| 10.5 (26.7)| 10.0 (25.4)| 10.5 (26.7)| 10.5 (26.7)
Side Discharge| Standard| Standard| Standard| Standard
Bagger| Standard| Standard| Standard| Standard
Mulching Capability| Standard| Standard| Standard| Standard
Attachments (* denotes it comes with unit)
Dethatcher| 71102400| 71102400| N/A| 71102400
Mulchmaster Package| | | | 71102700
Leaf Shredder| 71102800| 71102800| 71102800| 71102800
Side Discharge Chute|
| | |
Rear Bagger|
| | |
Swivel Wheel Kit| 71103300| 71103300|
| 71103300
Rear Discharge Chute| 71103200| 71103200| 71103200| 71103200
Rear Roller Kit| 71103400| 71103400| 71103400| 71103400
Mulching Kit**| 71103500| 71103500| 71103500| 71103500

GENERAL MAINTENANCE & ADJUSTMENTS

CONTROLS AND FEATURESAriens-911044-Walk-Behind-Lawn-Mower-fig-
\(3\)

  1. Engine Control
  2. Ignition Switch (Electric Start Models)
  3. Speed Selector (Self-propelled)
  4. Primer (Briggs Engine)
  5. Side Discharge Cover
  6. Side Discharge Deflector
  7. Cutting Height Levers (2 Rear Wheel Adjusters, 2 Front Wheel Adjusters
  8. Rear Door
  9. Adjustable and Folding Handlebars
  10. Grass Bag
  11. Recoil
  12. Wheel Drive Control
  13. Mulchmaster™ Plug
  14. Throttle Control (Robin Engines)
  15. Handlebar Adjustment Holes
  16. Speed Indicator (Self-propelled)

SERVICE POSITIONS

Place unit on a flat level surface. ALWAYS stop engine. Assure unit is secure and will not tip over. Strap and clamp onto bench if needed.
A handlebar service position is provided for tipping the unit for cleaning and service (Figure 3). See Adjustments.

WARNING : ACCIDENTAL ENGINE START-UP can cause death or serious injury. ALWAYS stop the engine, remove key, wait for moving parts to stop and remove wire from spark plug before adjusting or servicing.
CAUTION : FUEL SPILLS may result in minor or moderate injury and/or damage to the unit. Before the unit is tipped up onto the housing, remove enough fuel so that no spillage will occur. Remove battery to prevent spillage of electrolyte.

IMPORTANT : When tipping to service engine or unit, use the following service positions for the brand and type of engine on your mower:

  • Tecumseh & Robin Engines: Place the handlebar into the service position and tip the machine to the rear.
  • Briggs & Stratton Intek Engines: Place the handlebar into the handlebar service position and tip the machine to the left, opposite the discharge opening.

Kawasaki : Place the handlebar in service position and tip unit to right.
IMPORTANT : If engine becomes “flooded” due to tipping, clean air cleaner and remove spark plug, put one teaspoon of oil in cylinder, turn engine over a few times and reinstall spark plug.

FILLING THE FUEL TANK

WARNING : EXPLOSIVE VAPORS and its FLAMMABLE FUEL can result in death or serious injury. Handle fuel with care.

  • ALWAYS use an approved fuel container.
  • No Smoking! No lighted Materials!
  • No Open Flame!
  • Allow engine to cool before maintenance. Gasoline is highly flammable and must be handled with care. Allow engine to cool several minutes before removing fuel tank cap. Never fill tank when engine is running or is hot from operation. DO NOT allow open flame, matches, or smoking in area. DO NOT overfill. Allow about 1/4″ of tank space for fuel expansion. Wipe up any spills and allow vapors to dissipate before starting engine. Use approved gasoline container.

To add fuel to fuel tank:

  1. Put unit in open or well-ventilated area.

  2. Stop engine and allow to cool.

  3. Clean fuel cap and surrounding area to prevent dust, dirt and debris from entering fuel tank.

  4. Remove cap.
    IMPORTANT : DO NOT use gasohol or gasoline containing alcohol because alcohol will cause internal parts to deteriorate. See Engine Manual for correct type and grade of fuel.

  5. Fill fuel tank. (See Specifications for tank capacity.)

  6. Replace fuel cap and tighten.

  7. ALWAYS clean up any spilled fuel.

GENERAL LUBRICATION
Swivel Lubrication (swivel units)
See Figure 4.

  • Apply Sten Mix Hi-Temp Grease or equivalent to the lube fittings. Order P/N: 00036800 – 3 pack of 3 oz. cartridges.
  • When using Sten Mix Grease for the first time, all components should be thoroughly cleaned prior to lubricating.

Commercial Models
Grease fittings on rear axle housing every 25 hours.

CHECK MOWER BLADE
See Figures 5 and 6.

Regularly check mower blades for wear and that lock washer is fully compressed by cap screw (requires 25-30 ft-lbs (33-40 Nm) of torque on cap screw).

When blade needs sharpening:

  1. Block blade to prevent rotation.
  2. Remove cap screw, lock washer and blade from shaft.
  3. Sharpen both ends of blade at original angle (25o), removing equal amounts of material from each end to maintain proper blade balance. New blades are balanced to within 1.3 in. oz. at factory. DO NOT grind around corner at tip of blade. If cutting edge of blade cannot be sharpened in
  4. straight line to within 1/8 of an inch of its end, replace blade with Ariens replacement blade only.
  5. Install blade, lock washer and tighten cap screw 25- 30 ft-lbs (33-40 Nm) until lock washer is fully compressed.

IMPORTANT : If mower is used under sandy soil conditions, replace blades when air lifts become eroded.

CHECK DRIVE BELTAriens-911044-Walk-Behind-Lawn-Mower-fig-
\(7\)

Check drive belt for wear or damage. Replace belt if worn or damaged.

CHECK ENGINE/BLADE CONTROL

The engine/blade control must stop the engine and blade within 3 seconds after the bail is released. If the engine or blade continues to run, adjust or repair control immediately.
Engine control must stop engine ignition, at 3/4″ to 1-1/4″ from handlebar as control is released.

  1. Start engine and slowly release control until engine stops firing.
  2. Measure distance between handlebar and control at the point that engine stopped firing.
  3. Turn cable nuts at handlebar mount clockwise if measurement is more than 1-1/4″ or counter-clockwise if measurement is less than 3/4″.
  4. Turn nuts against mount to lock in position.

Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(8\)

There must not be slack in cable.

To check, rotate blade in it’s cutting direction (this draws control rod fully in).
To eliminate slack in cable, turn nuts on cable at handlebar clockwise.Ariens-911044-Walk-Behind-Lawn-Mower-fig-
\(9\)

CHECK GRASS BAG
Check bag for wear or damage. Keep bag clean and dry. Replace only with Ariens original equipment replacement bag.

CHECK DRIVE CONTROL
Check operation of drive control. The drive must disengage completely when the bail handle is released. Adjust bail travel if necessary. See Figure 10.
When the wheel drive control is squeezed toward the handlebar, the extension spring, located at the bottom end of the traction cable, must start to extend when the control is between 1-1/2″ and 2″ (3.8 and 5 cm) away from the handlebar. To check:

  1. Squeeze the wheel drive control toward the handlebar until the spring starts to open.
  2. Measure the distance between the wheel drive control and handlebar at the handlebar indentation.
  3. To obtain the proper adjustment, turn the cable nuts. Turn clockwise if the measurement is more than 2″; counterclockwise if the measurement is less than 1-1/2″. Tighten the nuts against the bracket to lock in position. If there is not enough thread length for adjustment, the opposite end of the cable can be adjusted.

Three Speed Drive Control
When the wheel drive control bail is squeezed toward the handlebar, the extension spring must start to extend when the control bail is between 3-7/8″ to 4-1/8″ away from the handlebar. The extension spring is located at the bottom end of the traction control cable.

To check the control cable spring:

  1. Squeeze the wheel drive control bail towards the handlebar until the spring starts to open.
  2. Measure the distance between the wheel drive bail to the handlebar indentation.
  3. To obtain the proper adjustments turn the control cable nuts at the handlebar or the bottom of the control cable anchor against the anchor supports.

HANDLEBAR ADJUSTMENT
Holes in handlebar braces provide four height positions, a service position, and a storage position (except on professional models).

Use one of the four holes to adjust handlebar height to a safe, comfortable position. Place bolt on handlebar bracket through one of holes 1, 2, 3 or 4 in order of increasing height (See Figure 11).
NOTE : On Professional models nuts and bolts replace pins.
For storage, rotate handlebar forward and place pins through holes further up braces.

SPEED CONTROL BELL CRANK

The speed control bell crank holds the speed selector rod in position after a speed has been set. The spring washers may become loose with normal wear. If the speed selector rod does not stay firmly in position, adjust the speed control bell crank. See Figure 12.
To adjust:

  1. Remove cover, fully compress the helical spring lockwashers with lock nut and then back lock nut off, one half turn.
  2. If the speed selector rod is still too loose, tighten lock nut by small increments until it holds its position. Tightening the lock nut too much will not allow the speed selector rod to move at all.
  3. Align notch in left hand side of cover with bolt and secure with knob

FRICTION WHEEL ADJUSTMENT

Early Models (Side Pull)
Adjust rear cutting height levers to middle position. Check to be sure there is slack in the friction wheel drive cable, if not readjust cable nuts.
Set speed selector at slowest speed and loosen the two cap screws on drive mount. Hold lever securing drive cable down toward mower pan and adjust drive assembly to bring friction wheel to within 1/16″ above drive disk. Tighten cap screws. Check for proper function of friction wheel and speed selector. Adjust cable nuts to remove slack.

ENGINE

ENGINE TROUBLESHOOTING
The following troubleshooting chart is to be used to isolate engine problems and give possible causes and corrective action responses.
The troubleshooting key is generic and can be used for several types of engines. Use only those possible causes and corrective actions that apply to the unit.

TROUBLE| POSSIBLE CAUSES

(Refer to Key Below)

| CORRECTIVE ACTION
---|---|---
Black Exhaust| 1, 20, 22, 25, 29, 31, 32, 33| repair or replace
Blue/White Exhaust| 4, 20, 25, 31, 33, 34| repair or replace
Difficult Starting| 1, 5, 7, 8, 9, 10, 20, 21, 22, 29, 31, 32, 33| repair or replace
Erratic Running| 1, 7, 8, 9, 10, 20, 21, 23, 26, 29, 33, 59, 62| repair or replace
Excessive Fuel Consumption| 1, 20, 22, 23, 25, 39, 31, 32, 33| repair or replace
High Oil Pressure| 4, 41| repair or replace
Knocking| 22, 26, 29, 31, 33, 36, 46, 59| repair or replace
Loss of Power or System| 1, 8, 10, 20, 21, 22, 23, 25, 26, 31, 32, 33| repair or replace
Low Cranking Power| 2, 3, 4, 11| repair or replace
Low Oil Pressure| 4, 36, 37, 39| repair or replace
Misfiring| 10, 20, 25, 26, 28, 29, 32| repair or replace
Overheating| 1, 19, 25,| repair or replace
Poor Compression| 25, 28, 29, 31, 32, 33, 34,59,| repair or replace
Starts and Stops| 1, 6, 10, 62| repair or replace

see electrical systems

see engine service manual

Vibration| 20, 23, 25, 26, 29, 33, 45, 49| repair or replace
Will Not Crank| 2, 11, 45| charge battery or replace
Will Not Start| 1, 10, 62| repair or replace

see electrical systems

see engine service manual

TROUBLESHOOTING KEY

1| Restriction in air cleaner| 22| Incorrect grade of fuel| 43| Faulty suction pipe
2| Bad electrical connection| 23| Sticking throttle/restricted movement| 44| Choked oil filter
3| Faulty starter motor| 24| Exhaust pipe restriction| 45| Bad solenoid switch
4| Incorrect grade of lubricating oil| 25| Leaking cylinder head gasket| 46| Incorrect piston height
5| Low cranking speed| 26| Overheating| 47| Damaged fan
6| Fuel tank empty| 27| Cold running| 48| Faulty engine mounting
7| Controls not in correct operation| 28| Incorrect tappet adjustment| 49| Incorrectly aligned flywheel and/or
| position| | | | flywheel housing
8| Blocked fuel feed line| 29| Sticking valves| 50| Faulty thermostat
9| Faulty fuel lift pump| 30| Incorrect high pressure pipes| 51| Restriction in water jacket
10| Choked fuel filter| 31| Worn cylinder bores| 52| Loose fan belt
11| Battery capacity low| 32| Pitted valves and seats| 53| Choked radiator
12| Air in fuel system| 33| Broken, worn or sticking piston ring(s)| 54| Faulty water pump
13| Faulty fuel injection pump| 34| Worn valve stems and guides| 55| Choked breather pipe
14| Faulty fuel injectors or incorrect| 35| Restriction in air cleaner| 56| Damaged valve stem oil deflector (if
| type| | | | fitted)
15| Incorrect use of cold start| 36| Worn or damaged bearings| 57| Coolant level too low
| equipment| | | |
16| Faulty cold start equipment| 37| Insufficient oil in sump| 58| Blocked sump strainer
17| Broken fuel injection pump drive| 38| Bad/defective oil temperature switch| 59| Broken valve spring
18| Incorrect fuel pump timing| 39| Oil pump worn| 60| Exhaust or vacuum pipe leak
19| Incorrect valve timing| 40| Pressure relief valve sticking open| 61| Bad or defective water temperature
| | | | | switch
20| Poor compression| 41| Pressure relief valve sticking closed| 62| Bad spark plug(s)
21| Blocked fuel tank vent| 42| Broken relief valve spring| |

ENGINE SERVICE LOCATIONSAriens-911044-Walk-Behind-Lawn-Mower-fig-
\(14\)

ENGINE OIL
IMPORTANT: Change engine crankcase oil after first two (2) hours of operation. Thereafter, change oil every twenty five hours of operation (more often in dusty dirty conditions). Refer to Engine Manual for oil type and grade and detailed instructions.

Engine Oil Check and Change
The engine crankcase oil should be checked daily or every five (5) hours of operation. Oil level MUST be maintained in safe operating range on dipstick at all times or engine damage will result.
IMPORTANT : DO NOT overfill. Be sure engine is level when adding oil.
See Engine Manual for detailed instructions.

AIR CLEANER

  • Inspect air cleaner every twenty five hours of operation or every three months, whichever comes first.

  • When dirty, foam filter elements should be removed and cleaned. Refer to the following instructions.
    NOTE : Inspect air cleaner more often if unit is used under dirty, dusty conditions.

  • Foam Filter Element – (Pre Cleaner) – Wash foam elements in warm water and detergent. Rinse thoroughly until all traces of detergent are eliminated. Squeeze (don’t wring) away excess water and air dry.

  • Soak foam element in clean, fresh oil, wrap in paper towel or rag, and squeeze out excess oil.

  • Cartridge – Paper cartridge is to be replaced when it is dirty or becomes distorted.
    NOTE : DO NOT attempt to clean paper elements.

Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(15\)

ENGINE COOLING

The engine is air cooled. Air must circulate freely around engine and over cooling fins on cylinder head and block to prevent overheating.
Once a year or every one hundred (100) operating hours (more if conditions require) clean engine fins and external surfaces of engine of dust, dirt, and oil deposits which can contribute to improper cooling.
Keep Areas within Heavy Line Clean of all Debris (Figure 16).

CAUTION : Periodically clean muffler and manifold areas to remove all grass, dirt and all combustible debris. If engine muffler is equipped with spark arrester screen assembly, remove every 50 hours for cleaning and inspection.

SPARK PLUG

Spark plug should be cleaned or replaced and gap reset to .030″ every 100 hours of operation or yearly whichever comes first.
To clean, remove debris from area around spark plug base. Remove the spark plug from the engine. Scrape and wash with a commercial solvent. DO NOT blast clean.
NOTE : Sparking can occur if wire terminal does not fit firmly on a spark plug. Reform the terminal if necessary.

BATTERY (ELECTRIC START MODEL)

CAUTION : Do not put the battery in fire or mutilate it; the battery may burst or release toxic materials. Do not short circuit; the battery may cause burns.

  • A 12-volt, 2.5 ampere hour sealed lead acid battery is supplied with unit. Engine alternator will normally keep the battery fully charged with a 3 to 5-minute start/run cycle.
    IMPORTANT : Use battery supplied only. DO NOT attempt to “jump start” mower.

  • If the battery discharges, use a 5 to 10-minute start/run cycle to recharge the battery or use a battery charger (a battery charger, kit number 71104300, is available from Ariens). An engine run time of at least 8 hours is required to charge a fully discharged battery.

  • To charge with Ariens battery charger, connect the charger plug to the mating plug on the battery (not engine) and plug charger into 120 volt Alternating Current (AC) outlet. Charge for 12 to 36 hours (battery may be charged for up to 56 hours with no harmful effect).

MOWER DECK

Ariens-911044-Walk-Behind-Lawn-Mower-fig-
\(18\)

BLADE BRAKE/CLUTCH REMOVAL

  • Remove the mower blade.

  • Squeeze the brake/clutch bail against the handlebar and insert the cotter pin into open hole of the actuating rod.

  • Remove the 3/8-24×2-1/2″ cap screw that retains the brake, blade, clutch (BBC) leaf spring and leaf spring from shaft.

  • Remove BBC flywheel by securing the flywheel with a BBC wrench (P/N 000239). Remove the flywheel and cotter pin securing the actuator rod to the brake actuator.

  • Remove three nuts and remove the brake actuator from unit.

  • Inspect parts for wear and or damage, and replace as necessary. Assemble in reverse order.
    NOTE : When attaching the actuator rod to the brake actuator, the brake actuator is to be rotated up so the proper hole is aligned.

  • On models with key, position key in the crankshaft. Slide the flywheel onto the crankshaft and BBC leaf spring onto the flywheel stub shaft.

  • IMPORTANT : Install 3/8-24×2-1/2″ Gr. 5 cap screw and lock washer to secure. Torque to 30 ft-lbs (40.6 Nm) using BBC wrench to hold leaf spring and flywheel. Secure mower blade with two 3/8-24×1-1/4″ Gr. 5 cap screws with lock washers, torque to 25-30 ft-lbs
    (33.8-40.6 Nm).

  • Check idler for free rotation of the pulley and movement of the pivot.

  • Replace drive belt in reverse order being sure that the belt seats in pulley grooves with the idler positioned on the back (flat) side of the belt.

Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(20\)

DRIVE BELT REPLACEMENT

CAUTION : Use sturdy gloves or padding to protect hands when working with mower blades.
NOTE : On BBC model blade brake/clutch assembly must be removed to change belt.

  • Place right rear adjustment lever in first notch and left rear height adjustment lever in the third notch. This provides clearance between the friction wheel and the drive disk.
  • Remove belt from the idler, drive disk and engine pulley. Remove belt through the opening under the mower pan.
  • Inspect parts for wear and or damage, replace as necessary.
  • Assemble in reverse order.Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(20\)

NOTE : Be sure to return wheel height adjustment levers to their original position.

IDLER REMOVAL

  • Remove the mower blade, hub, and center baffle. Refer to the Mower Blade Section of this manual.
  • Remove the idler spring. Loosen the hardware securing idler arm to the mower pan, and remove the cap screw securing the idler to the idler arm.
  • Inspect parts for wear and or damage, replace as necessary. Assemble in reverse order.

WHEELS AND ADJUSTERS

Regularly check wheels and adjusters for wear. Replace wheels when they become excessively worn. Adjusters should be cleaned and fasteners checked for tightness.
Check the front wheels for bushing wear. Replace as needed.

Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(22\) Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(23\) Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(24\)

HANDLEBARS & CONTROLS

HANDLEBARS AND BAILS
To remove handlebars:

  • Remove cable retainers and disconnect cable from bail. Remove push nuts and washers securing bails to handlebars. Remove bails from handlebars.
  • Remove carriage bolts and washers or knob and washers securing braces to handlebars. Remove braces.
  • Remove carriage bolt, nut and washer securing handlebar to handlebar bracket. Remove handlebars and inspect parts for wear and or damage. Replace as necessary and assemble in reverse order.
  • Check all parts for wear and replace as needed.

SPEED CONTROL BELL CRANK
To adjust models with spring, fully compress compression spring with lock nut and then back lock nut off one turn.

To adjust units without spring:

  1. Remove cover and completely compress helical spring lockwashers with locknut, then back off 1/4 turn.
  2. If rod is still too loose, tighten nut in small increments until the rod holds.

Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(25\) Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(26\)

ELECTRICAL

BATTERY (ELECTRIC START MODELS)

IMPORTANT : Use battery charger supplied only. DO NOT attempt to “jump start” mower.
To charge with battery charger, connect charger plug to mating plug on battery (not engine) and plug the charger into 110 volt Alternating Current (A.C.) outlet. Charge for 24 to 48 hours (battery may be charged for up to 72 hours with no harmful effects).
An engine run time of at least 8 hours is required to charge a fully discharged battery.

To Remove Battery from Unit

  1. Remove wing nuts from battery U-bolt.
  2. Disconnect battery from wiring.

WIRING DIAGRAMAriens-911044-Walk-Behind-Lawn-Mower-fig-
\(27\)

CONTINUITY DIAGRAM

The diagram below shows the various states of connection for electrical components. The solid lines on the switches show continuity.
NOTE : All switches are viewed from the rear.Ariens-911044-Walk-Behind-
Lawn-Mower-fig- \(28\)

Key Switch (01155800)

FRICTION DRIVE SYSTEM & AXLE

INTRODUCTION

  • WARNING : Remove wire from spark plug before attempting any repair or adjustment procedures.
  • WARNING : Gasoline is highly flammable and its vapors are explosive. Handle with care.
  • CAUTION : DO NOT touch engine or parts which are hot from operation. Allow such parts to cool before servicing unit.

NOTE : Rear wheels must be removed to perform repairs in this section. Block up rear of the mower to raise rear wheels off the work surface. Remove the snap ring securing wheel to the axle and remove the washer and wheel.

GEAR REMOVAL

  • Remove snap ring securing gear cover over idler shaft, remove the captives securing cover to drive mount, and remove gear cover.
  • Slide differential assembly off axle and remove idler gear from idler shaft.
  • Drive out roll pin securing pinion gear on hex shaft and remove the pinion gear.
  • Inspect parts for wear and or damage, and replace as necessary. Assemble in reverse order and grease spline area.

AXLE REMOVAL

  • Remove snap ring next to axle spline on left side of axle and remove axle bearing.
  • Remove cotter pin securing left side of rear protective guard to bracket and move guard out of the way.
  • With snap ring pliers, spread snap ring apart on right side of axle. Pull right wheel and axle from mower until left end of axle clears drive mount.
  • Inspect parts for wear and or damage, replace as necessary and assemble in reverse order being sure to grease spline area. ****

DRIVE MOUNT REMOVAL

  • Remove axle and gears. Refer to Axle Removal and Gear Removal Sections.
  • Remove extension spring from drive actuator. Loosen nuts securing drive cable to drive actuator. Remove drive cable spring from a bracket on mower pan and remove drive cable from drive actuator.
  • Remove cotter pin and washer from shift link. Remove shift link, and drive mount.
  • Assemble in reverse order.

DRIVE MOUNT DISASSEMBLY

  • Drive out roll pin in hex shaft and remove hex shaft. Press out bearings from drive mount with bearing driver.
  • Remove taptites securing retainer plate to drive mount and remove guide shaft.
  • Push idler shaft out of drive mount, inspect parts for wear or damage and replace as necessary. Assemble in reverse order.

FRICTION WHEEL REPLACEMENT
If rubber tire on friction wheel becomes worn, chipped, or broken, friction wheel must be replaced. On models with steel friction wheel hub and 3 retaining screws, remove the three cap screws and nuts that secure friction wheel to hub (hole in bearing plate provides access to hardware) and remove friction wheel.

  • Assemble in reverse order. Refer to Section 4.12 to adjust the friction wheel drive.
  • On models with plastic friction wheel hub, remove drive cover nut and remove drive cover. Remove two taptites and snap ring from gear cover and remove gear cover.
  • Remove cotter pin from shift link and move the shift link out of way.
  • Remove three #12-24 x 1/2″ taptites from the retainer plate. Remove 3/16 x 7/8″ roll pin from hex shaft with roll pin driver. Slide hex shaft to left. Slide friction wheel, retainer plate and thrust plate off hex shaft.
  • Remove taptites from thrust plate, separate the thrust plate, and remove the friction wheel.
  • Install new friction wheel using the reverse procedure.

DRIVE DISK REMOVAL

  • Remove drive belt.
  • Remove nut, lock washer and flat washer securing drive disk to mower pan.
  • Remove four captives securing the bearing retainer to drive disk, remove the bearing retainer and spindle.Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(33\)
  • Press out bearings from drive disk using Ariens
  • Bearing Driver P/N 000026. Replace bearings with
  • Bearing Driver P/N 000046.
  • Inspect parts for wear or damage and replace as necessary. Assemble in reverse order.

GEAR DRIVE SYSTEM & AXLE

WARNING : Remove the wire from the spark plug before attempting any repair or adjustment procedures.
WARNING : Gasoline is highly flammable and its vapors are explosive. Handle with care.
CAUTION : DO NOT touch the engine or parts that are hot from operation. Allow such parts to cool before servicing unit
NOTE : Rear wheels must be removed to perform repairs in this section. Block up rear of mower to raise rear wheels off work surface. Remove snap ring securing wheel to axle and remove washer and wheel.

TRANSMISSION REPLACEMENT

The 3-speed transmission is not repairable. It should be replaced if internal problems develop. To remove the transmission, remove the drive wheels and pinions.

Slide the axles out.

  1. Remove wheel cover and axle nut to remove the wheel and inner cover.
  2. Remove drive pinion and axle bearing by removing the two retaining E-clips.
  3. Repeat steps 1 and 2 for the other rear wheel.
  4. Disconnect the gearshift cable.
  5. Unbolt the transmission from the left-hand quadrant.
  6. Remove drive belt from pulley.
  7. Slide the transmission/axle assembly to the right and then down to remove it.
  8. Install replacement in reverse order. Use pulley and shift linkage from the removed unit.Ariens-911044-Walk-Behind-Lawn-Mower-fig- \(34\)

Ariens Company
655 West Ryan Street P.O. Box 157 Brillion, WI 54110-0157 920-756-2141
Fax 920-756-2407
www.ariens.com

References

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