GENERAC G0088740 Power Washer Owner’s Manual

GENERAC G0088740 Power Washer

• MODEL :____
• SERIAL :____
• DATE PURCHASED :__

Introduction and Safety

Introduction

• Read This Manual Thoroughly

WARNING
Consult Manual. Read and understand manual completely before using product. Failure to completely understand manual and product could result in death or serious injury.

If any section of this manual is not understood, contact the nearest Independent Authorized Service Dealer (IASD) or Generac Customer Service at 1-888-436-3722 (1-888-GENERAC), or visit www.generac.com for starting, operating, and servicing procedures. The owner is responsible for proper maintenance and safe use of the unit. SAVE THESE INSTRUCTIONS for future reference. This manual contains important instructions that must be followed during the placement, operation, and maintenance of the unit and its components. Always supply this manual to any individual that will use this unit, and instruct them on how to correctly start, operate, and stop the unit in case of emergency. The information in this manual is accurate based on products produced at the time of publication. The manufacturer reserves the right to make technical updates, corrections, and product revisions at any time without notice.

Safety Rules
The manufacturer cannot anticipate every possible circumstance that might involve a hazard. The alerts in this manual, and on tags and decals affixed to the unit, are not all-inclusive. If using a procedure, work method, or operating technique that the manufacturer does not specifically recommend, verify that it is safe for others and does not render the equipment unsafe. Throughout this publication, and on tags and decals affixed to the unit, DANGER, WARNING, CAUTION, and NOTE blocks are used to alert personnel to special instructions about a particular operation that may be hazardous if performed incorrectly or carelessly. Observe them carefully. Alert definitions are as follows:

DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTE: Notes contain additional information important to a procedure and will be found within the regular text of this manual. These safety alerts cannot eliminate the hazards that they indicate. Common sense and strict compliance with the special instructions while performing the action or service are essential to preventing accidents.

Safety Symbols and Meanings

General Information and Setup

Know Your Power Washer

WARNING
Consult Manual. Read and understand manual completely before using product. Failure to completely understand manual and product could result in death or serious injury. Read this manual thoroughly before assembling and operating this unit. Save this manual for future and immediate reference. Replacement owner’s manuals are available at www.generac.com.

Emissions
The United States Environmental Protection Agency (US EPA) (and California Air Resources Board (CARB), for engines/equipment certified to California standards) requires this engine/equipment to comply with exhaust and evaporative emissions standards. Locate the emissions compliance decal on the engine to determine applicable standards. See the included emissions warranty for emissions warranty information. Follow the maintenance specifications in this manual to ensure the engine complies with applicable emissions standards for the duration of the product’s life. \

Remove Contents from Carton

1. Open carton completely by cutting each corner from top to bottom.
2. Remove and verify carton contents prior to assembly. Carton contents should contain one each of the following:
   • Lance
   • Oil
   • Funnel
   • Parts Bag (includes):
   • Owner’s Manual
   • Gun Hook and Tree Clips
   • Hose Hook Wireform
   • Spark Plug Wrench
     • Bag of Colored Nozzles
     • Accessory Nozzle Holder*
     • Screw*
     • HexKey*
     • • Included in units with accessory nozzles (soap blaster or turbo noz-zle)
   • Main Unit
   • Handle Assembly
   • High-pressure Hose
   • Siphon Hose & Filter
   • Spray Gun
3. Call Generac Customer Service at 1-888-GENERAC (1-888-436-3722) with the unit model and serial number for any missing carton contents.
4. Record model, serial number, and date of purchase on front cover of this manual.

Assembly

WARNING
Consult Manual. Read and understand the manual completely before using a product. Failure to completely understand the manual and product could result in death or serious injury. Call Generac Customer Service at 1-888-GENERAC (1-888-436-3722) for any assembly issues or concerns. Please have model and serial number available.

1. See Figure 2-1. Place handle (A) onto handle supports (B). Push in latch buttons (C) and allow handle to slide into position. The button will lock the handle into place.
   NOTE: It may be necessary to move the handle supports from side to side in order to align the handle so it will slide over the handle supports.

2. See Figure 2-2. Install hose hook.

3. See Figure 2-3. If accessory nozzles (soap blaster or turbo nozzle) are included, attach accessory nozzle holder to either side of the billboard using supplied screw (A) and hex key (B).

4. See Figure 2-4. Install gun hook (A) on right (back) side of handle. Secure with tree clip (B).

5. See Figure 2-5. Insert and snap nozzles into spaces provided in handle.

6. See Figure 2-6. Attach siphon tube to siphon tube connection (A).

Add Engine Oil
Unit is shipped with no oil in the engine. Add engine oil before starting. See Engine Oil Recommendations.

1. Place power washer on a level surface.

2. Verify oil fill area is clean.

3. Remove oil fill cap and wipe dipstick clean.

4. Add recommended engine oil.
   NOTE: Some units have more than one oil fill location. It is only necessary to use one oil fill point.

5. Thread dipstick into oil filler neck. Oil level is checked with dipstick fully inserted.

6. See Figure 2-8. Remove dipstick and verify oil level is within safe operating range.

7. Install oil fill cap/dipstick and hand-tighten.

Fuel

DANGER
Explosion and Fire. Fuel and vapors are extremely flammable and explosive. Add fuel in a well ventilated area. Keep fire and spark away. Failure to do so will result in death or serious injury.

Fuel requirements are as follows:

• Clean, fresh, unleaded gasoline.
• Minimum rating of 87 octane/87 AKI (91 RON).
• Up to 10% ethanol (gasohol) is acceptable.
• DO NOT use E85.
• DO NOT use a gas oil mix.
• DO NOT modify engine to run on alternate fuels.
• Add a fuel stabilizer before storing.

1. Verify unit is OFF and cooled for a minimum of two minutes before fueling.
2. Place unit on level ground in a well-ventilated area.
3. See Figure 2-9. Clean the area around the fuel cap and remove the cap slowly.
4. Slowly add the recommended fuel. Do not overfill
5. Install fuel cap.
   NOTE: Allow spilled fuel to evaporate before starting unit.

Water Supply

NOTE: DO NOT run unit without sufficient water supply. Failure to follow water supply requirements will void unit warranty. Water supply must meet the following requirements:

• DO NOT siphon standing water for the water supply.
• Water temperature must be less than 100°F (38ºC).
• Water supply hose length must not exceed 50 ft (15.2 m).
• Water must be greater than 3.8 gallons per minute (17.3 liters per minute) and no less than 30 psi (206.8 kPa).
• DO NOT use a one-way valve, vacuum breaker, or check valve in any part of the water supply.

Connect Water Supply

1. Remove and discard the shipping cap from the pump water inlet (if equipped).
2. Run water supply for 30 seconds before connection to eliminate debris.
3. See Figure 2-10. Inspect the inlet screen for debris. Clean the screen or replace as necessary. DO NOT run power washer if the inlet screen is damaged or missing.
4. See Figure 2-11. Connect water supply hose to pump water inlet and handtighten.

Connect High-Pressure Hose and Lance

1. See Figure 2-12. Connect lance to spray gun and hand-tighten.
2. Place the spray gun and nozzle extension into the spray gun holder.
3. Remove and discard the shipping cap from the pump water outlet (if equipped).
4. See Figure 2-13. Connect high-pressure hose to pump and hand-tighten.
5. See Figure 2-14. Connect high-pressure hose to base of spray gun and handtighten.

Spray Gun
Become familiar with the spray gun trigger and locking system before use.

1. See Figure 2-15. With the unit OFF, hold the spray gun and squat the rigger to learn how the trigger mechanism and locking system can be activated and deactivated.
2. Turn ON the water, and squeeze the trigger to purge the pump system of air.
3. Verify spray gun is OFF with the lock engaged before starting the power washer.

Detergent Tank (if equipped)
A power washer is shipped with a siphoning tube and cap.

1. See Figure 2-16. Insert the siphoning tube through the hole in the cap.
2. Insert the siphoning tube into the detergent and snap the siphoning tube cap onto the detergent tank.

Nozzles

1. Select the correct nozzle for the task.
2. See Figure 2-17. Pull back quickly–connect the collar and install the nozzle.
3. Release quick-connect collar to secure nozzle.
4. Verify nozzle is locked in place.

Blast Pressure Nozzle (Red)
MAXIMUM – Higher pressure and lower flow for stubborn or hard-to-reach surfaces such as second-story surfaces, paint removal, oil stains, rust removal or other stubborn substances (tar, gum, grease, wax, etc.).

Clean Pressure Nozzle (Green)
GENERAL – Medium pressure and medium flow for most all-purpose cleaning such as home siding, brick patios, wood decks, driveways and sidewalks, garage floors, etc.

Wash Pressure Nozzle (White)
DELICATE – Lower pressure and higher flow for gentle cleaning of cars/trucks, boats, RV’s, patio furniture, lawn equipment, etc.

Detergent Nozzle (Black)
DETERGENT ONLY (BLACK), Only use power washer safe detergents/soaps to help break down stubborn dirt and grime on a variety of surfaces.

Operation

Operation and Use Questions
Call Generac Customer Service at 1-888- GENERAC (1-888-436-3722) with questions or concerns about unit operation and maintenance.

Before Starting Engine
Unit is shipped with no oil in the crankcase. Add engine oil before starting. See Engine Oil Recommendations.

1. Verify engine oil level is correct.
2. Verify fresh fuel level is correct.
3. Verify all fittings and couplers are properly secured.
4. Verify sufficient water supply is properly connected.
5. Verify thermal relief valve is rotated and open to ground.
6. Verify unit is secure on level ground, with proper clearance and is in a well ventilated area.

Prepare Power Washer for Use

1. Place unit on level ground, within the specified clearance required.
2. Connect appropriate water supply.

Power Washer Placement for Use

DANGER
Asphyxiation. Running engines produce carbon monoxide, a colorless, odorless, poisonous gas. Carbon monoxide, if not avoided, will result in death or serious injury.

WARNING

• Risk of Fire. Hot surfaces could ignite combustibles, resulting in fire. Fire could result in death or serious injury.
• Hot Surfaces. When operating the machine, do not touch hot surfaces. Keep the machine away from combustibles during use. Hot surfaces could result in severe burns or fire.

It is a violation of the California Public Resource Code, Section 4442, to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the exhaust system is equipped with a spark arrestor, as defined in Section 4442, maintained in effective working order. Other states or federal jurisdictions may have similar laws. Only operate the power washer outdoors in a well-ventilated area. Never operate power washer indoors, or in a confined space. Be aware of building openings and ventilation systems where exhaust may enter during use.

• Verify power washer is placed on level ground to avoid tipping during operation.
• Only use the unit outdoors. Verify exhaust gas does not enter a confined area through windows, doors, or ventilation intakes.
• See Figure 3-1 Keep at least 5 ft (1.5 m) of clearance on all sides of the power washer including overhead from dwellings and combustibles, when in use.

Transporting/Tipping of the Unit

WARNING
Personal Injury / Equipment Damage. Place wand/gun in holster and verify that handle is locked into place before moving. Failure to do so could result in death, serious injury, or equipment damage.Do not operate, store or transport the unit at an angle greater than 15 degrees.

Power Washer Start-Up

WARNING

• Vision Loss. Eye goggles are required to be worn when using this machine. Failure to wear eye goggles could result in permanent vision loss.
• Recoil Hazard. Recoil could retract unexpectedly if water pressure is not properly relieved from pump, creating kickback. Kickback could result in death or serious injury.
• Personal injury. Risk of fluid injection. Do not aim spray gun at people, animals, electrical devices, or fragile items. Keep out of reach of children. Failure to do so could cause death or serious injury.
• Fluid Injection. This machine produces high-pressure fluid streams that can pierce skin. Fluid injection could result in death or serious injury.
• Risk of Fire. Hot surfaces could ignite combustibles, resulting in fire. Fire could result in death or serious injury
• Hot Surfaces. When operating machine, do not touch hot surfaces. Keep the machine away from combustibles during use. Hot surfaces could result in severe burns or fire.

NOTE: DO NOT run power washer without a sufficient water supply turned ON. Damage to equipment resulting from failure to follow this instruction will void warranty.

1. Connect a sufficient water supply.

2. See Figure 3-2. Move fuel valve lever (B) to ON position.

3. For cold engine, move choke lever (A) to the CLOSED position.
   NOTE: For warm engine, verify choke lever is in the OPEN position.

4. See Figure 3-3. Turn the engine switch ON.

5. Relieve spray gun pressure.

6. Place foot on the unit to secure unit from movement when pulling recoil.

7. See Figure 3-4. Firmly grasp the recoil handle. Pull slowly until resistance is felt. Then pull rapidly to start the engine. After the engine-start attempt, if the engine fails to run, point the spray gun in a safe direction, and squeeze the spray gun trigger to release high pressure.

8. Return recoil handle slowly. DO NOT let recoil snap back against recoil housing.

9. See Figure 3-2. When engine starts, slowly move choke lever (A) to OPEN position as engine warms. If engine falters, move choke lever to CLOSE position, then to OPEN position.

   • If engine fails to start after six pulls, move choke lever (A) to “OPEN” position, and repeat steps 6 through 9.

Power Washer Shut Down

WARNING
Fluid Injection. This machine produces high-pressure fluid streams that can pierce skin. Fluid injection could result in death or serious injury.

IMPORTANT: Spray gun traps high-pressure water, even when engine is stopped and water  is disconnected. Always point spray gun insafe direction, and squeeze spray gun trigger to release high-pressure. Engage trigger lock when not in use.

1. Release spray gun trigger.
2. Turn engine switch OFF.
3. Turn water supply OFF.
4. Squeeze spray gun trigger and release high-pressure water.
5. Engage trigger lock. Apply Detergent

WARNING

• Fluid Injection. This machine produces high-pressure fluid streams that can pierce skin. Fluid injection could result in death or serious injury.
• Personal injury. Risk of fluid injection. Do not aim spray gun at people, animals, electrical devices, or fragile items. Keep out of reach of children. Failure to do so could cause death or serious injury.

NOTE: DO NOT use caustic liquid with power washer. Use ONLY power washer safe detergents. Follow all manufacturer’s instructions on the detergent label.

Apply detergent as follows:

1. Verify black detergent nozzle is installed.

2. Open detergent tank cap, if equipped.

3. Prepare detergent solution as required by job.

4. Depending on model, insert filter on end of the siphoning tube through hole in cap (supplied).
   NOTE: Verify siphoning tube and filter remain fully submerged in detergent while in use.
   NOTE: When inserting siphon tube into the detergent tank, route tube to prevent muffler contact. Contact with muffler while in use can damage detergent siphoning tube.

5. Verify black detergent nozzle is installed.
   NOTE: Detergent cannot be applied with a high-pressure nozzle (White, Green or Red). Only use black nozzle with detergent.

6. Start engine.

7. Apply detergent to a dry surface. Start at lower portion of the area to be washed and work upward using long, even, overlapping strokes.

IMPORTANT: Flush the detergent siphoning system after each use. Contact an authorized dealer or qualified service center with questions.

Rinsing

WARNING
Risk of Falling. Use of machine creates wet areas and trip hazards. Be aware of work area conditions. A fall could result in death or serious injury.

WARNING
Risk of Falling. Do not use this machine or any components on elevated surfaces. Doing so can result in a fall, serious injury, or death.

1. Remove black detergent nozzle from lance.
2. Select and install desired high-pressure nozzle.
3. Point spray gun in safe direction and squeeze the trigger to flush the remaining detergent from the system.
4. Keep spray gun a safe distance from area you plan to spray.
5. Spray gun may kick back when using high pressure spray. To avoid injury, firmly grasp spray gun with both hands.
6. Apply a high-pressure spray to a small area and then inspect surface for damage. If no damage is found, continue rinsing.
7. Start at top of area to be rinsed, working down with same overlapping strokes as used for cleaning.

Clean Detergent Siphoning Tube

Flush the detergent siphoning tube after each use before stopping the engine.

1. Place detergent siphoning tube/filter in a bucket of clean water.
2. Remove the high-pressure nozzle from the lance.
3. Select and install a black detergent nozzle.
4. Flush for 1-2 minutes.
5. Shut engine OFF.
6. Point the spray gun in a safe direction, and squeeze the spray gun trigger to release retained high water pressure. Engage trigger lock.

After Each Use
DO NOT allow water to remain in unit for long periods. Sediments or minerals can be deposited on pump parts and freeze pump. Follow these procedures after every use:

1. Shut engine OFF.
2. Turn water supply OFF.
3. Point spray gun in a safe direction, and squeeze trigger to relieve trapped pressure.
4. Let engine cool.
5. Disconnect hoses from spray gun and high-pressure outlet on pump. Drain water from hoses, spray gun, and lance. Use a rag to wipe off components.
6. Pull recoil handle approximately six times to remove the remaining liquid from the pump.
7. Switch fuel valve to OFF.
8. Store unit in a clean, dry area.

NOTE: If storing for more than 30 days, seeStorage.

Automatic Cool Down System (Thermal Relief)
When power washer runs for 3-5 minutes without spray gun activation, circulating water in pump can reach a temperature sufficient to engage the thermal relief system. The pump is cooled by discharging water onto ground.

Optional Accessories (not included with all models)

Soap Blaster
Use soap or detergent for better cleaning results.

1. Pre-rinse area with green or white nozzle.
2. Attach soap blaster nozzle to lance.
3. Add soap to tank (as directed by soap manufacturer).
4. Connect siphon hose to pump and insert into soap tank.
5. Select soap setting on PowerDial™ gun.
6. Apply soap starting from the bottom to top of the surface area.

Turbo Nozzle
Use for cleaning hard surfaces.

1. Attach turbo nozzle to lance.
2. Select the appropriate task setting on the PowerDial™ gun.
3. Start with tip 3 ft (1 m) away from the work area*.
4. Work from top to bottom of surface area.

NOTE: *Use with caution on softer surfaces.

Power Broom
Use for cleaning large surfaces like decks and driveways.

1. Attach power broom to lance.
2. Select the appropriate task setting on the PowerDial™ gun.
3. Make overlapping passes to prevent streaking.

PowerDial™ Gun (if equipped)

WARNING
Consult Manual. Read and understand manual completely before using product. Failure to completely understand the manual and product could result in death or serious injury.

1. Make connections according to Connect High-Pressure Hose and Lance in the owner’s manual.
2. Adjust PowerDial according to the task being performed.
3. Operate according to Spray Gun in the owner’s manual.

Features

• A Gun Body
• B PowerDial™
• C Trigger
• D Trigger Lock
• E Hose Connection
• F Lance Connection

Pressure Settings

1. Car
2. Wood Deck
3. Concrete
4. Soap

Maintenance and Troubleshooting

Maintenance
Regular maintenance will improve performance and extend engine/equipment life. Generac Power Systems, Inc. recommends that all maintenance work be performed by an Independent Authorized Service Dealer (IASD). Regular maintenance, replacement, or repair of the emissions control devices and systems may be performed by any repair shop or person of the owner’s choosing. To obtain emissions control warranty service free of charge, the work must be performed by an IASD. See the emissions warranty. Power washer warranty does not cover items subjected to operator abuse or negligence. To receive full warranty value, the operator must maintain the power washer as instructed in this manual, including proper storage as detailed in Storage.

• NOTE: Call 1-888-GENERAC (1-888-436-3722) with questions about component replacement.
• NOTE: All required service and adjustments should be each season, as detailed in the Maintenance Schedule.

Maintenance Schedule
Follow maintenance schedule intervals, whichever occurs first according to use.

NOTE: Adverse conditions will require more frequent service.

First 5 Hours

Change engine oil
Every 8 Hours or Daily
Inspect/clean water inlet screen
Inspect high-pressure hose
Inspect detergent siphoning hose/filter
Inspect spray gun and assembly for leaks
Clean debris
Inspect engine oil level
Every 20 Hours or Every Year
Change engine oil
Every 50 Hours or Every Year
Inspect/clean air cleaner filter
Inspect muffler and spark arrestor
Every 100 Hours or Every Year
Service spark plug

• Clean if clogged. Replace if perforated or torn
• Service more often under dirty or dusty conditions.

Pump Oil
DO NOT attempt any oil maintenance on pump. Pump is lubricated and sealed at factory. No additional maintenance is required for life of pump.

Preventive Maintenance
Dirt or debris can cause improper operation and equipment damage. Clean power washer daily or before each use. Keep area around and behind muffler free from combustible debris. Inspect all cooling air openings on power washer.

• Use a damp cloth to wipe exterior surfaces clean.
• DO NOT insert any objects through cooling air openings.
• Use a soft bristle brush to loosen caked on dirt, oil, etc.
• Use a vacuum to pick up loose dirt and debris.

Inspect and Clean Inlet Screen
Inspect inlet screen on pump water inlet. Clean the clogged screens and replace screen if damaged.

Inspect High-Pressure Hoses
High-pressure hoses can develop leaks from wear, kinking, or abuse. Inspect hoses before each use. Inspect for cuts, leaks, abrasions, bulging, and damage or movement of couplings. If these conditions exist, replace hose immediately.

NOTE: DO NOT repair high-pressure hose. Replace with hose that meets or exceeds the maximum pressure rating of the unit.

Inspect Detergent Siphoning Tube
Inspect filter on the detergent tube and clean if clogged. The tube should fit tightly on the barbed fitting. Examine the tube for leaks or tears. Replace the filter or tube if either is damaged.

Inspect Spray Gun

NOTE: Replace spray gun immediately if it fails any test steps.

1. Verify spray gun hose connection is secure.
2. Squeeze and release trigger.
   NOTE: Trigger should spring back into place and lock when released.

Nozzle Maintenance

WARNING
Fluid Injection. This machine produces high-pressure fluid streams that can pierce skin. Fluid injection could result in death or serious injury.

A pulsing sensation felt when squeezing spray gun trigger may be caused by excessive pump pressure. Typical causes of excessive pump pressure are nozzle clog or restriction.

Immediately clean nozzle as follows:

1. Turn engine and water supply OFF.
   NOTE: Keep high-pressure hose connected to pump and spray gun while system is pressurized.

2. Relieve spray gun water pressure.

3. Remove nozzle from the lance.

4. See Figure 4-2. Use a paper clip to remove debris.

5. See Figure 4-3. Remove lance from the spray gun and back flush thoroughly.

6. Install nozzle on a lance.

7. Install lance on the spray gun.

8. Verify hose is connected to pump water inlet and high-pressure hose is connected to spray gun and pump.

9. Turn water ON.

10. Start engine.

11. Test power washer by operating with each quick-connect nozzle.

Engine Maintenance

Engine Oil Recommendations
To maintain the product warranty, the engine oil should be serviced per the recommendations of this manual. For your convenience, maintenance kits designed and intended for use on this product are available from the manufacturer that include engine oil, oil filter, air filter, spark plug(s), a shop towel and funnel. These kits can be obtained from an Independent Authorized Service Dealer (IASD). Only high-quality detergent oils classified for service SJ or higher are recommended. DO NOT use special additives. Climate determines proper engine oil viscosity. See chart to select correct viscosity.

• Below 50°F (10°C) use of SAE 30 will result in a hard start.
• Above 80°F (27°C) use of 10W30 may cause increased oil consumption. Inspect oil levels more frequently.

Inspect Engine Oil Level
Inspect engine oil level before each use, or every 8 hours of operation.

1. Place the power washer on a level surface.
2. Clean area around oil fill.
3. See Figure 4-5. Remove oil fill cap and wipe the dipstick clean.
4. See Figure 4-6. Screw dipstick into filler neck. Verify the proper oil level on dipstick.
5. Add recommended engine oil as necessary.
6. Replace oil fill cap and hand-tighten.

NOTE: Some units have more than one oil fill location. It is only necessary to use one oil fill point.

Change Engine Oil
When using power washer under extreme, dirty, dusty conditions, or in extremely hot weather, change oil more frequently.

NOTE: Don’t pollute. Conserve resources. Return used oil to collection centers. Change oil while engine is still warm from running, as follows:

1. Place the power washer on a level surface.
2. Disconnect the spark plug wire from the spark plug and place the wire where it cannot contact the spark plug.
3. Clean area around oil fill, and oil drain plug.
4. Remove the oil fill cap.
5. See Figure 4-7. Remove oil drain plug (A) and drain oil completely into a suitable container.
6. Install oil drain plug and tighten it securely.
7. See Figure 4-6. Slowly pour oil into the oil fill opening until the oil level is between the L and H marks on the dipstick. DO NOT overfill.
8. Install oil fill cap, and finger tighten.
9. Wipe up any spilled oil.
10. Properly dispose of oil per all applicable regulations.

Air Filter
Engine will not run properly and may be damaged if run with a dirty air cleaner. Service air cleaner more frequently in dirty or dusty conditions.

To service air cleaner

1. Remove air cleaner cover.
2. Remove filter element(s).
3. Inspect filter element(s) and replace if damaged. To order replacements, contact Generac Customer Service at 1-888- GENERAC (888-436-3722) for the name of your nearest Independent Authorized Service Dealer.
4. Clean foam filter element in warm soapy water. Rinse, and allow to dry thoroughly. Dip in clean engine oil and squeeze out excess oil.
5. Tap paper filter element several times on hard surface to remove dirt. Compressed air (not exceeding 30 psi (207 kPa) can also be used to blow through filter element from the inside.
6. Use a clean, damp cloth to wipe dirt from inside air cleaner cover.
7. Put cleaned or new filter element(s) in place. Verify gasket is in place (if equipped).
8. Install air cleaner cover. Tighten air cleaner screws or fasteners securely.

Service Spark Plug
To service spark plug:

1. Clean area around spark plug.

2. Remove and inspect the spark plug.

3. See Figure 4-8. Inspect electrode gap with the wire feeler gauge and replace the spark plug if gap (A) is not within the specification listed on Product Specifications Sheet.
   NOTE: Replace the spark plug if electrodes are pitted, burned or the porcelain is cracked. Use ONLY the recommended replacement plug. See Product Specifications Sheet.

4. Install spark plug finger tight, and tighten an additional 3/8 to 1/2 turn using a spark plug wrench.

Inspect Engine Spark

WARNING
Accidental Start-up. Disconnect spark plug wire when working on unit. Failure to do so could result in death or serious injury.

1. Disconnect spark plug wire from spark plug.
2. Secure spark plug wire where it cannot contact spark plug.
3. Test spark plug with approved spark plug tester.

NOTE: DO NOT inspect for spark with spark plug removed.

Inspect Muffler And Spark Arrestor

• NOTE: It is a violation of California Public Resource Code, Section 4442, to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the exhaust system is equipped with a spark arrestor, as defined in Section 4442, maintained in effective working order. Other states or federal jurisdictions may have similar laws.
• NOTE: Call 1-888-GENERAC (1-888-436- 3722) with questions about component replacement.
• NOTE: Use ONLY original equipment replacement parts. Inspect muffler for cracks, corrosion, or other damage. Remove spark arrestor, if equipped, inspect for damage or carbon blockage. If replacement parts are required.

Inspect Spark Arrestor Screen (if equipped)

WARNING
Hot Surfaces. When operating machine, do not touch hot surfaces. Keep machine away from combustibles during use. Hot surfaces could result in severe burns or fire.

1. See Figure 4-9. Loosen fasteners (A) and remove heat shield from muffler.
2. See Figure 4-10. Loosen fasteners (B) and remove spark arrestor from the muffler.
3. Inspect spark arrestor. Replace if torn, perforated or otherwise damaged.
4. If screen is not damaged, clean it with a commercial solvent and replace.

Storage General

DANGER
Explosion and Fire. Fuel and vapors are extremely flammable and explosive. Add fuel in a well-ventilated area. Keep fire and spark away. Failure to do so will result in death or serious injury.

WARNING
Risk of Fire. Verify machine has properly cooled before installing the cover and storing the machine. Hot surfaces could result in fir.

• DO NOT place a storage cover on a hot power washer. Allow the unit to cool to room temperature before storage.
• DO NOT store fuel from one season to another unless properly treated.
• Replace the fuel container if rust is present. Rust in fuel will cause fuel system problems.
• Cover the unit with a suitable protective, moisture-resistant cover.
• Store the unit in a clean and dry area.
• Always store power washers and fuel away from heat and ignition sources.

Prepare Fuel System for Storage
Fuel stored over 30 days can go bad and damage fuel system components. Keep fuel fresh, use a fuel stabilizer. If a fuel stabilizer is added to the fuel system, prepare and run the engine according to Power Washer Start-Up. Run the engine for 2 minutes to circulate stabilizer throughout fuel system. Adequately prepared fuel can be stored up to 24 months.

NOTE: If fuel has not been treated with fuel stabilizer, it must be drained into an approved container. Run engine until it stops from lack of fuel. Use of fuel stabilizer in fuel storage containers is recommended to keep fuel fresh.

Prepare Engine for Storage

1. Change engine oil.
2. Remove spark plug.
3. Pour a tablespoon (5-10cc) of clean engine oil or spray a suitable fogging agent into cylinder.
4. Pull starter recoil several times to distribute oil in cylinder.
5. Install spark plug.
6. Pull recoil slowly until resistance is felt. This will close valves so moisture cannot enter engine cylinder. Gently release recoil.

Change Oil
Change engine oil before storage. See Change Engine Oil.

Prepare Pump for Storage

NOTE: If not using power washer for more than 30 days, prepare engine and pump for storage. Protect unit from freezing temperatures. Failure to do so will permanently damage pump and render unit inoperable. Freeze damage is not covered under warranty. Protect unit from freezing temperatures as follows:

1. Shut engine OFF.
2. Turn fuel valve to OFF.
3. Turn water supply OFF.
4. Point spray gun in a safe direction, and squeeze trigger to relieve trapped pressure.
5. Let engine cool.
6. Disconnect hoses from spray gun and high-pressure outlet on pump. Drain water from hoses, spray gun, and lance. Use a rag to wipe off components.
7. Empty pump of all remaining liquids.
8. Pull recoil handle approximately six times to remove the remaining liquid from the pump.
9. Winterize pump with Generac Pump Shield™ (P/N 0L2414). This minimizes freeze damage and lubricates pistons and seals.

NOTE: If Generac Pump Shieldâ„¢ is not available, connect a 3 ft (1 m) section of garden hose to the water inlet adapter. Pour RV-antifreeze (alcohol-free antifreeze) into the hose. Pull the recoil handle twice. Disconnect hose. Store the unit in a clean and dry area.

Troubleshooting

Part No.0L5053 Rev. E 10/25/2022 ©2022 Generac Power Systems, Inc. All rights reserved Specifications are subject to change without notice. No reproduction allowed in any form without prior written consent from Generac Power Systems, Inc. Generac Power Systems, Inc. S45 W29290 Hwy. 59 Waukesha, WI 53189 1-888-GENERAC (1-888-436-3722) www.generac.com

References

• Product Registration & Activation
• Product Registration & Activation
• Generac Power Systems | A total energy solutions company
• P65Warnings.ca.gov

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>