CRAFTSMAN 917.388620 Rotary Lawn Mower Owner’s Manual
- October 31, 2023
- Craftsman
Table of Contents
Owner’s Manual
6.75 HORSEPOWER
21″ REAR DISCHARGE ROTARY LAWN MOWER
Model No: 917.388620
917.388620 Rotary Lawn Mower
- <https
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- Safety
- Assembly
- Operation
- Maintenance
- Espanol
- Repair Parts
CAUTION:
Read and follow all
Safety Rules and Instructions
before operating this equipment Sears, Roebuck and Co., Hoffman Estates, IL 60179 Visit our Craftsman website: www.sears.com/craftsmanWARRANY
LIMITED TWO YEAR WARRANTY ON CRAFTSMAN POWER MOWER
For two years from date of purchase, when this Craftsman Lawn Mower is maintained, lubricated, and tuned up according to the operating and maintenance instructions the owner’s manual, Sears will repair free of charge any defect in material or workmanship.
If this Craftsman Lawn Mower is used for commercial or rental purposes, this warranty applies for only 90 days from the date of purchase.
This Warranty does not cover:
- Expendable items which become worn duding normal use, such as rotary mower blades, blade adapters, belts, air cleaners and spark plug.
- Repairs necessary because of operator abuse or negligence, including bent crankshafts and the failure to maintain the equipment according to the instructions contained in the owner’s manual.
Warranty service is available by returning the Craftsman power mower to the nearest Sears Service Center/Department in the United States. This warranty applies only while this product is in use in the United States.
SAFTY RULES
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Read, understand, and follow all instructions on the machine and in the manual(s) before starling. Be thoroughly familiar with the controls and the proper use of the machine before starling.
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Do not put hands or feet near or under rotating pads. Keep clear of the discharge opening at all times.
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Only allow responsible individuals, who are familiar with the instructions, to operate the machine
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Clear the area of objects such as rocks, toys, wire, bones, sticks, etc., which could be picked up and thrown by the blade.
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Be sure the area is clear of other people before mowing. Stop machine if anyone enters the area.
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Do not operate the mower when barefoot or wearing open sandals.
Always wear substantial foot wear. -
Do not pull mower backwards unless absolutely necessary. Always look down and behind before and while moving backwards.
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Do not operate the mower without proper guards, plates, grass catcher or other safety protective devices in place.
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See manufacturer’s instructions for proper operation and installation of accessories. Only use accessories approved by the manufacturer.
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stop the blade(s) when crossing gravel drives, walks, or roads.
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Stop the engine (motor) whenever you leave the equipment, before cleaning the mower or unclogging the chute.
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Shut the engine (motor) off and wait until the blade comes to complete stop before removing grass catcher.
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Mow only in daylight or good artificial light.
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Do not operate the machine while under the influence of alcohol or drugs.
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never operate machine in wet grass.
Always be sure of your footing: keep a firm hold on the handle and walk; never run. -
Disengage the self-propelled mechanism or drive clutch on mowers so equipped before starting the engine (motor).
if the equipment should start to vibrate abnormally, stop the engine (motor) and check immediately for the cause. Vibration is generally a warning of trouble. -
Always wear safety goggles or safety glasses with side shields when operating mower. II. SLOPE OPERATION Slopes are a major factor related to stipend fall accidents which can result in severe injury. All slopes require extra caution. If you feel uneasy on a slope, do not mow it.
DO:
- Stop the blade(s) when crossing gravel drives, walks, or roads.
- Stop the engine (motor) whenever you leave the equipment, before cleaning the mower or unclogging the chute.
- Shut the engine (motor) off and wait until the blade comes to complete stop before removing grass catcher.
- Mow only in daylight or good artificial light.
- Do not operate the machine while under the influence of alcohol or drugs.
- Never operate machine in wet grass. Always be sure of your footing: keep a firm hold on the handle and walk; never run.
- Disengage the self-propelled mechanism or drive clutch on mowers so equipped before starting the engine (motor).
- if the equipment should start to vibrate
- abnormally, stop the engine (motor) and check immediately for the cause. Vibration is generally a warning of trouble.
- Always wear safety goggles or safety glasses with side shields when operating mower.
II. SLOPE OPERATION Slopes are a major factor related to slip and fall accidents which can result in severe injury. All slopes require extra caution. If you feel uneasy on a slope, do not mow it.
DO:
- Mow across the face of slopes: never up and down. Exercise extreme caution when changing direction on slopes.
- Remove obstacles such as rocks, tree limbs, etc.
- Watch for holes, ruts, or bumps. Tall grass can hide obstacles.
DO NOT.”
- Do not trim near drop-offs, ditches or embankments. The operator could lose footing or balance.
- Do not trim excessively steep slopes.
- Do not mow on wet grass. Reduced
footing could cause slipping.
II1.CHILDREN
Tragic accidents can occur if the operator is not alert to the presence of
children.
Children are often attracted to the machine and the mowing activity. Never
assume that children will remain where you last saw them.
- Keep children out of the trimming area and under the watchful care of another responsible adult,
- be alert and turn machine off if children enter the area.
- Before and while walking backwards, look behind and down for small children.
- Never allow children to operate the machine.
- Use extra care when approaching blind corners, shrubs, trees, or other objects that may obscure vision.
IV. SERVICE
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Use extra care in handling gasoline and other fuels. They are flammable and vapors are explosive.
-Use only an approved container.
– Never remove gas cap or add fuel with the engine running. Allow engine to cool before refueling. Do not smoke.
-Never refuel the machine indoors.
– Never store the machine or fuel container inside where there is an open flame, such as a water heater. -
Never run a machine inside a closed area.
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Never make adjustments or repairs with the engine (motor) running. Disconnect the spark plug wire, and keep the wire away from the plug to prevent accidental starting.
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Keep nuts and bolts, especially blade attachment bolts, tight and keep equipment in good condition.
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Never tamper with safety devices.
Check their proper operation regularly. -
Keep machine free of grass, leaves, or other debris build-up. Clean oil or fuel spillage. Allow machine to cool before storing.
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Stop and inspect the equipment if you strike an object. Repair, if necessary, before restarting.
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Never attempt to make wheel height adjustments while the engine (motor) is running.
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Grass catcher components are subject to wear, damage, and deterioration, which could expose moving parts or allow objects to be thrown. Frequently check components and replace with manufacturer’s recommended parts, when necessary.
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mower blades are sharp and can cut. Wrap the blade(s) or wear gloves, and use extra caution when servicing them.
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Do not change the engine governor setting or overspeed the engine.
Look for this symbol to point out important safety precautions. It means
CAUTION!!r BECOME ALERT !!! YOUR SAFETY IS INVOLVED.
WARNING: In order to prevent accidental starting when setting up,
transporting, adjusting or making repairs, always disconnect spark plug wire
and place wire where it cannot contact spark plug.
WARNING: Engine exhaust, some of its constituents, and certain vehicle
components contain or emit chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm.
WARNING: Battery posts, terminals and related ecceseodes contain lead and
lead compounds, chemicals known to the State of California to cause cancer and
birth defects or other reproductive harm.
Wash hands after handling.
ACCESSORIES
These accessories were available when this lawn mower was produced. They are not shipped with your mower. They are also available at most Sears retailoutletsand service centers. Most Sears stores can also order repair parts for you, when you provide the model number of your lawn mower. Some of these accessories may not apply to your lawn mower.
LAWN MOWER PERFORMANCE
CLIPPING DEFLECTOR
FOR REAR DISCHARGE LAWN MOWERS| MULCHER KITS| STABILIZER
---|---|---
GRASS CATCHERS
FOR
REAR DISCHARGE
LAWN MOWERS| GRASS CATCHERS
FOR
REAR DISCHARGE
LAWN MOWERS| GAS CANS
LAWN MOWER MAINTENANCE
| MUFFLERS | AIR FILTERS | SPARK PLUGS |
|---|---|---|
| BELTS | BLADES | BLADE ADAPTERS |
ASSEMBLY
Read these instructions and this manual in its entirety before you attempt to assemble or operate your new lawn mower.
IMPORTANT: This lawn mower is shipped WITHOUT OIL OR GASOLINE in the
engine.
Your new lawn mower has been assembled at the factory with the exception of
those parts left unassembled for shipping purposes. ALl parts such as nuts,
washers, bolts, etc., necessary to complete the assembly have been placed in
the parts bag. To ensure safe and proper operation of your lawn mower, all
parts and hardware you assemble must be tightened securely. Use the correct
tools as necessary to ensure proper tightness.
TO REMOVE LAWN MOWER FROM CARTON
- Remove loose parts included with mower.
- Cut down two end corners of carton and lay end panel down flat.
- Remove all packing materials except padding between upper and lower handle and padding holding operator presence control bar to upper handle.
- Roll lawn mower out of carton and check carton thoroughly for additional loose parts.
HOWTO SET UPYOUR LAWN MOWER
TO UNFOLD HANDLE
IMPORTANT: Unfold handle carefully so as not to pinch or damage control
cables.
- Raise lower handle section to operating position and squeeze the bottom ends of lower handle towards each other until the pin in handle can be inserted into one of the three height adjustment holes.
- Remove protective padding, raise upper handle section into place on lower handle and tighten both handle knobs.
- Remove any packing material from around control bar.
- Your handles may be adjusted for your mowing comfort. Refer to Service and Adjustments section of this manual.
OPERATION
KNOW YOUR LAWN MOWER
READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR
LAWN MOWER. Compare the illustrations with your lawn mower to familiarize
yourself with the location of various controls and adjustments. Save this
manual! for future reference.
These symbols may appear on your lawn mower or in literature supplied with the
product. Learn and understand their meaning.
IMPORTANT: This lawn mower is shipped without oil or gasoline in the engine.
MEETS CPSC SAFETY REQUIREMENTS
Sears rotary walk-behind power lawn mowers conform to the safety standards of
the American National Standards Institute and the U.S. Consumer Product Safety
Commission.
The blade turns when the engine is running.
Operator presence control bar – must be held down to the handle to start
the engine. Release to stop the engine.
Primer – pumps additional fuel from the carburetor to the cylinder for
use when starting a cold engine.
Starter handle – used for starting the engine.
The operation of any lawn mower can result in foreign objects thrown into the
eyes, which can result in severe eye damage.
Always wear safety glasses or eye shields while operating your lawn mower or
performing any adjustments or repairs.
We recommend a wide vision safety mask over spectacles or standard safety
glasses.
HOWTO USEYOUR LAWN MOWER
ENGINE SPEED
The engine speed was set at the factory for optimum performance. Speed is not
adjustable.
ENGINE ZONE CONTROL
CAUTION: Federal regulations require an engine control to be installed
on this lawn mower in order to minimize the risk of blade contact injury. Do
not under any circumstances attempt to defeat the function of the operator
control. The blade turns when the engine is running.
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Your lawn mower is equipped with an operator presence control bar which requires the operator to be positioned behind the lawn mower handle to start and operate the fawn mower.
TO ADJUST CUTTING HEIGHT
Raise wheels for low cut and lower wheels for high cut, adjust cutting height to suit your requirements. Medium position is best for most lawns. -
To change cutting height, squeeze adjuster lever toward wheel. Move wheel up or down to suit your requirements.
Be sure all wheels are in the same setting.
NOTE: Adjuster is properly positioned when plate tab inserts into hole in lever.
Also, 9-position adjusters (if so equipped) allow lever to be positioned between the plate tabs.
TO CONVERT MOWER
Your lawn mower was shipped ready to be used as a matcher. To convert to
bagging:
REAR BAGGING
- Lift rear door of the lawn mower and place the grass catcher frame hooks onto the door pivot pins.
- To convert to mulching operation, remove grass catcher and dose rear door.
CAUTION: Do not run your lawn mower without clipping deflector or approved grass catcher in place. Never attempt to operate the lawn mower with the rear door removed or propped open. TO EMPTY GRASS CATCHER
- Lift up on grass catcher using the frame handle.
- Remove grass catcher with clippings from under lawn mower handle.
- Empty clippings from bag using both frame handle and bag handle.
NOTE: Do not drag the bag when emptying; it will cause unnecessary wear.
BEFORESTARTINGENGINE
ADD OIL
Your lawn mower is shipped with out oil in the engine. Engine holds 20 oz. of
oil. For type and grade of oil to use, see “ENGINE” in Maintenance section of
this manual.
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Be sure lawn mowar is level and area around oil fill is clean.
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Remove engine oil cap and fill to the full line on the dipstick. Pour oil slowly. Do not over fill.
NOTE: Allow oil to settle down into engine for accurate reading. To read proper level, tighten engine oil cap, then remove it to road the dipstick. -
Reinstall engine oil cap and tighten.
• Check oil level before each use. Add oil if needed. Fill to full line on dipstick.
• Change the oil after ever./25 hours of operation or each season. You may need to change the oil more often under dusty, dirty conditions.
ADD GASOLINE
- Fill fuel tank. Use fresh, clean, regular unleaded gasoline with a minimum of 87 octane. Do not mix oil with gasoline.
- Purchase fuel in quantities that can be used within 30 days to assure fuel freshness.
WARNING: Experience indicates that alcohol blended fuels (called gasohol
or using ethanol or methanol) can attract moisture which leads to separation
and formation of acids during storage. Acidic gas can damage the fuel system
of an engine while in storage. To avoid engine problems, the fuel system
should be emptied before storage of 30 days or longer. Drain the gas tank,
start the engine and let it run until the fuel lines and carburetor are empty.
Use fresh fuel next season. See Storage instructions for additional
information. Never use engine or carburetor cleaner products in the fuel tank
or permanent damage may occur.
CAUTION: Fill to bottom of gas tank filler neck. Do not overfill. Wipe
off any spilled oil or fuel. Do not store, spill or use gasoline near an open
flame.
TO START ENGINE
NOTE: Due to protective coatings on the engine, a small amount of smoke
may be present during the initial use of the product and should be considered
normal.
-
To start a cold engine, push primer three -(3) times before trying to start.
Use a firm push. This step is not usually necessary when starting an engine which has already run for a few minutes. -
Hold operator presence control bar down to the handle and pull starter handle quickly. Do not allow starter rope to snap back.
TO STOP ENGINE
- To stop engine, release operator presence control bar.
NOTE: In cooler weather it may be necessary to repeat priming steps. In warmer weather over priming may cause flooding and engine will not start. If you do flood engine, wait a few minutes before attempting to start and do not repeat priming steps.
MOWINGTIPS
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Under certain conditions, such as very tall grass, it may be necessary to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving clumps of grass clippings. It may also be necessary to reduce ground speed and/or run the lawn mower over the area a second time.
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For extremely heavy cutting, reduce the width of cut by overlapping previously cut path and mow slowly.
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For better grass bagging and most cutting conditions, the engine speed should be set in the fast position.
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For side discharge lawn mowers, cutting in a counter-clockwise direction, starting at the outside of the area to be cut, spreads grass clippings more evenly and puts less load on the engine. To keep clippings off of walkways, flower beds, etc., make the first cuts in a clockwise direction.
-
Pores in cloth grass catchers can become filled with dirt and dust with use and catchers will collect less gross.
To prevent this, regularly hose catcher off with water and let dry before using. -
Keep top of engine around starter clear and clean of grass clippings and chaff.
This will help engine air flow and extend engine life.
MULCHING MOWINGTIPS IMPORTANT:
For best performance, keep mower housing free of built-up grass and trash. See
“Cleaning” in MAINTENANCE section of this manual.
- The special mulching blade will recut the grass clippings many times and reduce them in size so that as they fall onto the lawn they will disperse into the grass and not be noticed. Also, the mulched grass will biodegrade quickly to provide nutrients for the lawn. Always mulch with your highest engine (blade) speed as this will provide the best rebutting action of the blades.
- Avoid cutting your lawn when it is wet. Wet grass tends to form clumps and interferes with the mulching action. The best time to mow your lawn is the early afternoon. At this time the grass has dried and the newly cut area will not be exposed to the direct sun.
- For best results, adjust the lawn mower cutting height so that the lawn mower cuts off only the top one-third of the grass blades. If the lawn is overgrown it will be necessary to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving clumps of mulched gross. For extremely heavy mulching, reduce your width of cut by overlapping previously cut path and mow slowly. • Certain types of gross and grass conditions may require that an area be mulched a second time to completely hide the clippings. When doing a second cut, mow across or perpendicular to the first cut path.
- Change your cutting pattern from week to week. Mow north to south one week then change to east to west the next week. This will help prevent matting and groining of the lawn.
MAINTENANCE
GENERAL RECOMMENDATIONS
The warranty on this lawn mower does not cover items that have been subjected
to operator abuse or negligence. To receive full value from the warranty,
operator must maintain mower as instructed in this manual.
Some adjustments will need to be made periodically to properly maintain your
unit.
All adjustments in the Service and Adjustments section of this manual should
be checked at least once each season.
- Once a year, replace the spark plug, clean or replace air filter element and check blade for wear. A new spark plug and clean/new air filter element assures proper air-fuel mixture and helps your engine run better and last longer.
- Follow the maintenance schedule in this manual.
BEFORE EACH USE
- Check engine oil level.
- Check for loose fasteners.
LUBRICATION
Keep unit well lubricated(See “LUBRICATIONCHART”).
LUBRICATIONCHART
- Refer to maintenance “Engine” section.
- Spray lubricant
IMPORTANT: Do not oil or grease plastic wheel bearings, viscous lubricants will attract dust and dirt that will shorten the life of the self- lubricating bearings, if you feel they must be lubricated, use only a dry, powdered graphite type lubricant sparingly.
PRODUCT SPECIFICATIONS
SERIAL NUMBER|
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DATE OF PURCHASE|
GASOLINE CAPACITY/TYPE:| 1.5 QUARTS
UNLEADED REGULAR
OIL TYPE (API-SF – SJ):| SAE 30 (ABOVE 32°F) SAE 5W-30 (BELOW 32°F)
OIL CAPACITY:| 20 OZS.
SPARK PLUG(GAP: .030″)| CHAMPION RJ19LM OR J19LM
BLADE BOLT TORQUE:| 35-40 FT. LBS.
• The model and serial numbers will be found on a decal attached to the rear
of the lawn mower housing. Record both serial number and date of purchase in
space provided above.
LAWN MOWER
Always observe safety rules when performing any maintenance, TIRES
- Keep tires free of gasoline, oil, or insect control chemicals which can harm rubber.
- Avoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage.
BLADE CARE
For best results, mower blade must be kept sharp. Replace bent or damaged
blades.
TO REMOVE BLADE
-
Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug.
-
Turn lawn mower on its side. Make sure air filter and carburetor are up.
-
Use a wood block between blade and mower housing to prevent blade from turning when removing blade bolt.
NOTE: Protect your hands with gloves and/or wrap blade with heavy cloth. -
Remove blade bolt by turning counterclockwise.
-
Remove blade and attaching hardware (bolt, lock washer and hardened washer).
NOTE: Remove the blade adapter and check the key inside hub of blade adapter. The key must be in good condition to work properly. Replace adapter if damaged.
TO REPLACE BLADE
- Position the blade adapter on the engine crankshaft. Be sure key in adapter and crankshaft keyway are aligned.
- Position blade on the blade adapter aligning the two (2) holes in the blade with the raised lugs on the adapter.
- Be sure the trailing edge of blade (opposite sharp edge) is up toward the engine.
- install the blade bolt with the lock washer and hardened washer into blade adapter and crankshaft.
- Use block of wood between blade and lawn mower housing and tighten the blade bolt, turning clockwise.
- The recommended tightening torque is 35-40 ft. Ibs.
IMPORTANT: Blade bolt is grade 8 heat treated.
TO SHARPEN BLADE
NOTE: We do not recommend sharpening blade – but if you do, be sure the
blade is balanced.
Care should be taken to keep the blade balanced. An unbalanced blade will
cause eventual damage to lawn mower or engine.
- The blade can be sharpened with a file or on a grinding wheel. Do not attempt to sharpen while on the mower.
- To check blade balance, drive a nail into a beam or wall. Leave about one inch of the straight nail exposed. Place center hole of blade over the head of the nail. If blade is balanced, it should remain in a horizontal position. If either end of the blade moves downward, sharpen the heavy end until the blade is balanced.
GRASS CATCHER
- The grass catcher may be hosed with water, but must be dry when used.
- Check your grass catcher often for damage or deterioration. Through normal use it will wear. If catcher needs replacing, replace only with a manufacturer approved replacement catcher.
Give the lawn mower model number when ordering.
ENGINE
LUBRICATION
Use only high quality detergent oil rated with API service classification SF-
SJ.
Select the oil’s SAE viscosity grade according to your expected operating
temperature.
NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting
in cold weather, these multi-viscosity oils will result in increased oil
consumption when used above 32°F. Check your engine oil level more frequently
to avoid possible engine damage from running low on oil.
Change the oil after every 25 hours of operation or at least once a year if
the lawn mower is not used for 25 hours in one year.
Check the crankcase oil level before starting the engine and after each five
(5) hours of continuous use, Tighten oil plug securely each time you check
the oil level.
TO CHANGE ENGINE OIL
NOTE: Before tipping lawn mower to drain oil, drain fuel tank by running
engine until fuel tank is empty.
- Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug.
- Remove engine oil cap; lay aside on a clean surface.
- Tip lawn mower on its side as shown and drain oil into a suitable container. Rock lawn mower back and forth to remove any oil trapped inside of engine.
- Wipe off any spilled oil on lawn mower and on side of engine.
- Fill engine with oil. (See “Add Oil” in the Operation section of this manual.)
- Reconnect spark plug wire to spark plug.
AIR FILTER
Your engine will not run properly and may
be damaged by using a dirty air filter.
Replace the air filter every year, more
often if you mow in very dusty, dirty
conditions. Do not wash air filter.
TO CHANGE AIR FILTER
- Remove the air filter by turning clockwise to the stop and pelt away from collar.
- Remove filter from inside of cover.
- Clean the inside of the cover and the collar to remove any dirt accumulation.
- Insert new filter into cover.
- Put air filter cover and filter into collar aligning the tab with the slot.
- Push in on cover and turn counterclockwise to tighten.
MUFFLER
Inspect and replace corroded muffler as it could create a fire hazard and/or
damage.
SPARK PLUG
Change your spark plug each year to make your engine start easier and run
better. Set spark plug gap at .030 inch.
CLEANING
IMPORTANT: For best performance, keep mower housing free of buiifup grass
and trash. Clean the underside of your mower after each use.
CAUTION: Disconnect spark plug wire from spark plug and place wire where
it cannot come in contact with the spark plug.
- Clean the underside of your lawn mower by scraping to remove build-up of grass and trash.
- Clean engine often to keep trash from accumulating. A clogged engine runs hotter and shortens engine life.
- Keep finished surfaces and wheels free of all gasoline, oil, etc.
- We do not recommend using a garden hose to clean lawn mower unless the electrical system, muffler, air filter and carburetor are covered to keep water out. Water in engine can result in shortened engine life.
SERVICE AND ADJUSTMENTS
CAUTION: Before performing any service or adjustments:
- Release control bar and stop engine.
- Make sure the blade and all moving parts have completely stopped.
- Disconnect spark plug wire from spark plug and place where it cannot come in contact with plug.
LAWN MOWER
TO ADJUST CUTTING HEIGHT
See “TO ADJUST CUTTING HEIGHT” in the Operation section of this manual.
REAR DEFLECTOR
The rear deflector, attached between the rear wheels of your mower, is
provided to minimize the possibility that objects will be thrown out of the
rear of the mower into the operator’s mowing position, If the deflector
becomes damaged, it should be replaced.
DISCHARGE GUARD
The discharge guard, attached to the discharge opening of your lawn mower, is
provided to prevent the possibility of injury resulting from objects being
thrown out of the discharge opening into the operator mowing position. If the
discharge guard becomes damaged, it should be replaced.
TO ADJUST HANDLE
The handle on your lawn mower has three (3) height positions – adjust to
height that suits you.
- Squeeze the bottom ends of lower handle towards each other until the pin in handle can be inserted into one of the three height adjustment holes.
TO ASSEMBLE GRASS CATCHER
- Put grass catcher frame into grass bag with dgid part of bag on the bottom. Make sure the frame handle is outside of the bag top.
- Slip vinyl bindings over frame.
NOTE: If vinyl bindings are too stiff, hold them in warm water for a few
minutes. If bag gets wet, let it dry before using.
CAUTION: Do not run your lawn mower without clipping deflector or
approved grass catcher in place. Never attempt to operate the lawn mower with
the rear door removed or propped open.
ENGINE ENGINE SPEED
Your engine speed has been factory set. Do not attempt to increase engine
speed or it may result in personal injury. If you believe that the engine is
running too fast or too slow, take your lawn mower to an authorized service
center for repair and adjustment.
CARBURETOR
Your carburetor has a non-adjustable fixed main jet for mixture control. If
your engine does not operate properly due to suspected carburetor problems,
take your lawn mower to an authorized service center for repair and/or
adjustment.
IMPORTANT: Never tamper with the engine governor, which is factory set
for proper engine speed. Over speeding the engine above the factory high speed
setting can be dangerous. If you think the engine-governed high speed needs
adjusting, contact your nearest authorized service center, which has proper
equipment and experience to make any necessary adjustments.
STORAGE
Immediately prepare your lawn mower for storage at the end of the season or if
the unit will not be used for 30 days or more.
LAWN MOWER
When lawn mower is to be stored for a period of time, clean it thoroughly,
remove all dirt, grease, leaves, etc. Store in a clean, dry area.
- Clean entire lawn mower (See “CLEANING” in the Maintenance section of this manual).
- Lubricate as shown in the Maintenance section of this manual.
- Be sure that all nuts, bolts, screws, and pins are securely fastened. Inspect moving parts for damage, breakage and wear. Replace if necessary.
- Touch up all rusted or chipped paint surfaces; sand lightly before painting.
HANDLE
You can fold your lawn mower handle for storage.
- Loosen the two (2) handle knobs on sides of the upper handle and allow handle to fold down to the rear.
- Squeeze the bottom ends of lower handle toward each other until pins in handle clear the brackets and pivot entire handle assembly forward and allow it to rest on mower.
• When setting up your handle from the storage position, the lower handle will require manually locking into the mowing position.
IMPORTANT: When folding the handle for storage or transportation, be sure to fold the handle as shown or you may damage the control cables.
|
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ENGINE FUEL SYSTEM
IMPORTANT: it is important to prevent gum deposits from forming in
essential fuel system parts such as carburetor, fuel filter, fuel hose, or
tank during storage. Also, experience indicates that alcohol blended fuels
(called gasohol or using ethanol or methanol) can attract moisture which leads
to separation and formation of acids during storage. Acidic gas can damage the
fuel system of an engine while in storage.
- Drain the fuel tank.
- Start the engine and let it run until the fuel lines and carburetor are empty.
• Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur.
• Use fresh fuel next season.
NOTE: Fuel stabilizer is an acceptable alternative in minimizing the
formation of fuel gum deposits during storage. Add stabilizer to gasoline in
fuel tank or storage container. Always follow the mix ratio found on
stabilizer container. Run engine at least 10 minutes after adding stabilizer
to allow the stabilizer to reach the carburetor. Do not drain the gas tank and
carburetor if using fuel stabilizer.
ENGINEOIL
Drain oil (with engine warm) and replace with clean engine oil. (See “ENGINE”
in the Maintenance section of this manual).
CYLINDER
- Remove spark plug.
- Pour one ounce (29 ml) of oil through spark pug hoe into cylinder.
- Pull starlet handle slowly a few times to distribute oil.
- Replace with new spark plug.
OTHER
- Do not store gasoline from one season to another.
- Replace your gasoline can if your can starts to rust. Rust and/or dirt in your gasoline will cause problems.
- If possible, store your unit indoors and cover it to give protection from dust and dirt.
- Cover your unit with a suitable protective cover that does not retain moisture. Do not use plastic. Plastic cannot breathe which allows condensation to form and will cause your unit to rust.
IMPORTANT: Never cover mower while engine and exhaust areas are still
warm.
CAUTION: Never store the lawn mower with gasoline in the tank inside a
building where fumes may reach an open flame or spark. Allow the engine to
cool before storing in any enclosure,
TROUBLESHOOTING CHART
| PROBLEM | CAUSE | CORRECTION |
|---|---|---|
| Does not start | 1. Dirty air filter. |
2. Out of fuel.
3. Stale fuel.
4. Water in fuel.
5. Spark plug wire is disconnected.
6. Bad spark plug.
7. Loose blade or broken blade adapter.
8. Control bar in released position.
9. Control bar defective.| 1. Clean/replace air filter.
2. Fill fuel tank.
3. Drain tank and refill with fresh clean fuel.
4.Drain fuel tank and carburetor and refill tank with fresh gasoline.
5. Connect wire to plug.
6. Replace spark plug,
7. Tighten blade bolt or replace blade adapter.
8. Depress control bar to handle.
9. Replace control bar.
Loss of power| 1. Rear of lawn mower housing or cutting blade dragging in
heavy grass.
2. Cutting too much grass.
3. Dirty air filter.
4. Buildup of grass, leaves, and trash under mower.
5. Too much oil in engine.
6. Walking speed too fast.| 1. Set to “Higher Cut” position.
2. Set to “Higher Cut” position.
3. Clean/replace air filter.
4. Clean underside of mower housing.
5. Check oil level.
6. Cut at slower walking speed.
Poor cut – uneven| 1. Worn, bent or loose blade.
2. Wheel heights uneven.
3. Buildup of grass, leaves and trash under mower.| 1. Replace blade.
Tighten blade bolt.
2. Set all wheels at same height
3. Clean underside of mower housing.
Excessive vibration| 1. Worn, bent or loose blade.
2. Bent engine crankshaft.| 1. Replace blade. Tighten blade bolt.
2. Contact a Sears or other qualified service center.
Starter rope hard to pull| 1. Engine flywheel brake is on when control bar is
released
2. Bent engine crankshaft.
3. Blade adapter broken.
4. Blade dragging in grass.| 1, Depress control bar to upper handle before
pulling starter rope.
2. Contact a Sears or other qualified service center.
3. Replace blade adapter.
4. Move lawn mower to cut grass or to hard surface.
Grass catcher not filling (if equipped)| 1. Cutting height too low.
2. Lift on blade whom off.
3. Catcher not venting air.| 1. Raise cutting height.
2. Replace blade.
3. Clean grass catcher.
Hard to push| 1. Grass is too high or wheel height is too low.
2. Rear of lawn mower housing or blade dragging in grass.
3. Grass catcher too full.
4. Handle height position not right for you.| 1. Raise cutting height.
2. Raise rear of lawn mower housing one (1) setting higher.
3. Empty grass catcher.
4, Adjust handle height to suit.
REPAIR PARTS
CRAFTSMAN ROTARY LAWN MOWER– MODEL NO. 917.388620
CRAFTSMAN 4-CYCLE ENGINE
MODEL NUMBER 143.016702
CRAFTSMAN 4-CYCLE ENGINE
MODEL NUMBER 143.016702
CRAFTSMAN 4-CYCLE ENGINE
MODEL NUMBER 143,016702
Get it fixed, at your home or ourst
For repair of major brand appliances in your own home… no matter who made it,
no matter who sold it!
1-800-4-MY-HOM E s. Antic day, night (1-800-469-4663)
www.sears.com
To bring in products such as vacuums, lawn equipment and electronics for
repair, call for the location of your nearest Sears Parts & Repair Center.
1-800-488-1222 Aytdyor night
www.sears.com
For the replacement parts, accessories and owner’s manuals
that you need to do-it-yourself, call Sears Parts Directs!
1-800-366-PART 6a.m.-11p.m.CST,
(1-800-366-7278)
7 days week
www.sears.com/partsdlrect
To purchase or inquire about a Sears Service Agreement:
1-800-827-6655
7 a.m.- 5p.m.CST,Mon.- Sat.
® Registered Trademark/™ Trademark of Sears, Roebuck and Co.
176217 11.17.00 VE
Printed in U.S.A.
Documents / Resources
|
CRAFTSMAN 917.388620 Rotary Lawn
Mower
[pdf] Owner's Manual
917.388620 Rotary Lawn Mower, 917.388620, Rotary Lawn Mower, Lawn Mower, Mower
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