G0069240 - Pressure washer Generac - Free user manual and instructions

Product Type	Hot Water Pressure Washer
Brand	Generac
Model	G0069240
Category	Pressure Washer
Engine Type	4-Stroke Gasoline Engine
Start Type	Recoil Starter
Maximum Pressure	High Pressure (up to approx. 3200 PSI)
Water Flow Rate	≥ 3.8 GPM (17.3 L/min) at 30 PSI
Required Supply Pressure	30 PSI (206.8 kPa) minimum
Pump Type	Triplex (selected models) or Axial Cam (maintenance-free)
Included Nozzles	5 quick-connect nozzles: red, yellow, green, white, black
Main Functions	High pressure, detergent application, rinsing, pressure adjustment (model dependent)
Safety System	Low oil shutdown, trigger lock, automatic thermal relief
Fuel	Unleaded gasoline, octane rating 87 min, up to 10% ethanol
Recommended Engine Oil	SAE 30 or 10W-30 depending on temperature
Engine Maintenance	Oil change: after 5h then every 20h; air filter: every 50h; spark plug: every 100h
Pump Maintenance	Oil change every 50h (Triplex pumps); axial cam pumps are maintenance-free
Included Accessories	Handle, high pressure hose, gun, wand, siphon tube, filter, nozzles, oil, mounting kit

Frequently Asked Questions - G0069240 Generac

How to start the Generac G0069240 pressure washer?

Ensure the oil and fuel levels are correct, the water supply is connected, and the fuel valve is open. Set the choke to CLOSED (for a cold start), the throttle lever to FULL, and the engine switch to ON. Depressurize the gun, then pull the starter cord slowly until you feel resistance, then pull quickly. Once started, gradually open the choke.

What engine oil to use and how to check the level?

Use a detergent oil of grade SJ or higher, with viscosity suitable for temperature: SAE 30 in hot weather, 10W-30 in cold weather (below 10°C, prefer 5W-30). Place the machine on a level surface, remove the dipstick, wipe it, reinsert it, then remove it again: the level should be between the L and H marks.

How to apply detergent with this washer?

Use only the black nozzle (detergent nozzle). Immerse the filter of the siphon tube into the detergent solution. Start the engine, apply detergent to a dry surface from bottom to top. After use, rinse the system by placing the tube in clean water and running the machine for 1 to 2 minutes.

Why is the pressure low or uneven?

Possible causes: low-pressure nozzle installed, water inlet clogged, insufficient water supply (flow < 3.8 GPM or pressure < 30 PSI), kinked supply hose, clogged strainer, water temperature > 38°C, high-pressure hose clogged or leaking, clogged nozzle, or faulty pump. Check each point and clean or replace defective parts.

How to maintain the pump of the washer?

For Triplex pumps, drain the oil every 50 hours and replace with non-detergent SAE 30 or 10W-40 oil. Axial cam pumps are maintenance-free: do not attempt to drain. Regularly check the inlet strainer and clean it.

What to do if the engine does not start or stops during operation?

Check the oil level (low oil shutdown), fuel (fresh gasoline), air filter condition (clean it), spark plug (replace if worn), spark plug wire (properly connected). Ensure the choke is not left in the closed position. If the problem persists, contact a Generac authorized dealer.

How to rinse the machine after each use?

Turn off the engine and water supply. Point the gun in a safe direction and squeeze the trigger to release pressure. Disconnect hoses, drain them, and wipe down components. Pull the starter cord six times to purge the pump. Close the fuel valve. Store in a clean, dry place.

How to store the pressure washer for a long period?

Add a fuel stabilizer to the tank, run the engine for 2 minutes, then let it cool. Drain the engine oil. For the pump, use Generac Pump Shield to protect against freezing. If you don't have it, pour recreational vehicle antifreeze into the system. Store the unit in a dry, frost-free place.

Which nozzles to use for which type of cleaning?

Red: high pressure for tough surfaces (paint, rust). Yellow: medium pressure for driveways and patios. Green: general use (driveways, decks). White: delicate washing (cars, boats). Black: detergent application only.

How to clean a clogged nozzle?

Turn off the engine and water supply. Release pressure from the gun. Remove the nozzle from the wand. Use a paper clip to remove debris from the opening. Remove the wand from the gun and backflush it. Reassemble everything, then test the machine.

USER MANUAL G0069240 Generac

Small Pro Power Washer

Owner's Manual

MODEL:

SERIAL:

DATE PURCHASED:

Register your Generac product at:

register.generac.com

1-888-922-8482

Section 1 Introduction and Safety 1

Safety Rules 1

Safety Symbols and Meanings .....2

Section 2 General Information and

Setup 3

Know Your Power Washer ....3

Emissions 3

Remove Contents from Carton .....3

Assembly 3

Add Engine Oil 4

Check Pump Oil (Triplex Units) .....4

Fuel 4

Water Supply 5

Connect Water Supply ....5

Connect High-Pressure Hose and

Lance 5

Spray Gun 6

Nozzles 6

Section 3 Operation ....8

Operation and Use Questions .....8

Before Starting Engine 8

Prepare Power Washer for Use .....8

Power Washer Start-Up 8

Power Washer Shut Down .....9

Apply Detergent 9

Rinsing 10

Clean Detergent Siphoning Tube ..10

After Each Use 10

Automatic Cool Down System

(Thermal Relief) 10

Adjustable Pressure Setting

(if equipped) 10

Section 4 Maintenance and

Troubleshooting 11

Maintenance 11

Maintenance Schedule 11

Pump Oil (Triplex Units) 11

Pump Oil (Maintenance Free Pumps) 11

Preventive Maintenance 11

Engine Maintenance 12

Air Filter 13

Service Spark Plug 13

Storage 15

Prepare Fuel System for Storage .. 15

Troubleshooting 16

Section 1 Introduction and Safety

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. (000100a)

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 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.

(000001)

WARNING

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

(000002)

CAUTION

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

(000003)

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

DANGER

Asphyxiation. Running engines produce carbon monoxide, a colorless, odorless, poisonous gas. Carbon monoxide, if not avoided, will result in death or serious injury. (00010)

(000103)

DANGER

Electrocution. Water contact with a power source, if not avoided, will result in death or serious injury.

(000104)

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. (000105)

WARNING

Fluid Injection. This machine produces high-pressure fluid streams that can pierce skin. Fluid injection could result in death or serious injury. (000106b)

WARNING

Risk of Fire. Hot surfaces could ignite combustibles, resulting in fire. Fire could result in death or serious injury.

(000110)

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. (000101)

WARNING

Hearing Loss. Hearing protection is recommended when using this machine. Failure to wear hearing protection could result in permanent hearing loss. (000107)

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. (000108)

WARNING

Risk of Fire. Verify machine has properly cooled before installing cover and storing machine. Hot surfaces could result in fire. (000109)

WARNING

Moving Parts. Keep clothing, hair, and appendages away from moving parts. Failure to do so could result in death or serious injury. (000111)

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. (000112)

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. (000114)

WARNING

*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. (000113)

AWARNING

Consult Manual. Read and understand manual completely before using product. Failure to completely understand manual and product could result in death or serious injury. (000100a)

AWARNING

Moving Parts. Do not wear jewelry when starting or operating this product. Wearing jewelry while starting or operating this product could result in death or serious injury. (000115)

WARNING

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. (000117)

WARNING

Environmental Hazard. Always recycle batteries at an official recycling center in accordance with all local laws and regulations. Failure to do so could result in environmental damage, death, or serious injury. (000228)

WARNING

Personal Injury / Equipment Damage. Place wand 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. (000244)

Section 2 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. (000100a)

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:

3. Main Unit

4. Handle Assembly
   • High-pressure Hose
   • Siphon Tube & Filter
5. Spray Gun
6. Lance
   • Oil
7. Parts Bag (includes):

– Gun and Hose Hook Wireforms with Screws, Nuts, and Allen Wrench

• Owner's Manual
• Owner's Registration Card
• Bag of Colored Nozzles

• Filter Screen* (*Factory installed on axial cam pumps)

• Call Generac Customer Service at 1-888-GENERAC (1-888-436-3722) with the unit model and serial number for any missing carton contents.

• Record model, serial number, and date of purchase on front cover of this manual.

Assembly

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. (000100a)

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. Button will lock handle into place.

A B C 001528

Figure 2-1. Insert Handle

1. See Figure 2-2. Install gun and hose hooks with provided fasteners. Tighten securely.

Technical line drawing of a mechanical component with mounting holes and brackets (no text or symbols)

Figure 2-2. Install Gun and Hose Hooks

1. See Figure 2-3. Insert and snap nozzles into spaces provided in handle.

Line drawing of a vehicle dashboard with directional arrows indicating movement or flow (no text or symbols)

Figure 2-3. Insert Nozzles

1. See Figure 2-4. Attach siphon tube to siphon tube outlet (A).

A A A 001537

Figure 2-4. Attach Siphon Tube

Add Engine Oil

Unit is shipped with no oil in the crankcase. 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.

Illustration of a hand turning a valve with a rotating arrow, next to a small boat (no text or symbols)

000115

Figure 2-5. Remove Dipstick

1. 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 2-6. Remove dipstick and verify oil level is within safe operating range.

Technical line drawing of a mechanical component with threaded end and textured base (no text or symbols)

000116

Figure 2-6. Safe Operating Range

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

Check Pump Oil (Triplex Units)

NOTE: The axial cam and Cat pumps are maintenance free and do not require checking oil.

1. Place power washer on a flat, level surface.

2. See Figure 2-7. Clean area around oil fill and remove vented cap/dipstick (A).

A 001539

Figure 2-7. Check Pump Oil

1. See Figure 2-8. Check to confirm oil level is between the "L" and "H" on the dipstick when breather is screwed in. If oil is required, see Pump Oil (Triplex Units). DO NOT OVERFILL.
2. Install oil dipstick until finger tight.
3. Clean up any spilled oil.

H L 000268

Figure 2-8. Pump Oil Dipstick

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. (000105)

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 (non-ethanol fuel is recommended where available).

• DO NOT use E85.

• DO NOT use a gas oil mix.

- DO NOT modify engine to run on alternate fuels.

- Add a fuel stabilizer prior to storing.

1. Verify unit is OFF and cooled for a minimum of two minutes prior to fueling.

2. Place unit on level ground in a well ventilated area.

3. See Figure 2-9. Clean area around fuel cap and remove cap slowly.

4. Slowly add recommended fuel. Do not overfill

Line drawing of a hand using a lever to lift a valve on a control panel, with a gas pump nearby (no text or symbols)

Figure 2-9. Add Recommended Fuel

1. 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 ( 38^ C).
• 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 shipping cap from the pump water inlet.
2. Run water supply for 30 seconds prior to connection to eliminate debris.
3. See Figure 2-10. Inspect inlet screen for debris. Clean screen or replace as necessary. DO NOT run power washer if inlet screen is damaged or missing.

Three circular diagrams showing mechanical assembly steps, no text or symbols present

Figure 2-10. Inspect Inlet Screen

1. See Figure 2-11. Connect water supply hose to pump water inlet and hand-tighten.

Mechanical assembly diagram showing pipe connection with a black arrow indicating direction (no text or symbols)

Figure 2-11. Connect Water Supply Hose

Connect High-Pressure Hose and Lance

1. See Figure 2-12. Connect lance to spray gun and hand-tighten.

Diagram showing a connector being inserted into a cable, with no text or symbols present.

Figure 2-12. Connect Lance

1. Place spray gun and nozzle extension into spray gun holder.
2. See Figure 2-13. Connect high-pressure hose to pump. Hand tighten for threaded connection.

Technical diagram of a mechanical assembly with hoses and connectors, no visible text or symbols

Figure 2-13. Connect High-Pressure Hose to Triplex Pump

Technical line drawing of a mechanical assembly with no visible text or symbols

Figure 2-14. Connect High-Pressure Hose to Axial Pump (Hand Tight)

1. See Figure 2-15 and Figure 2-16. Connect high-pressure hose to base of spray gun. Hand-tighten for threaded connection.

Technical line drawing of a mechanical device with no visible text or symbols

Figure 2-15. Connect High-Pressure Hose to Spray Gun - Quick Connect

Diagram of a mechanical tool interacting with a curved component, showing motion direction (no text or symbols)

Figure 2-16. Connect High-Pressure Hose to Spray Gun - Threaded Connection

Spray Gun

Become familiar with spray gun trigger and locking system prior to use.

1. See Figure 2-17. With unit OFF, hold spray gun and squeeze trigger to learn how trigger mechanism and locking system can be activated and deactivated.

Line drawing of a hand holding a tool or device component (no text or symbols visible)

Figure 2-17. Spray Gun (typical)

1. Turn ON the water, and squeeze the trigger to purge the pump system of air.
2. Verify spray gun is OFF with lock engaged before starting power washer.

Nozzles

1. See nozzle selection guide and select correct nozzle for task.
2. See Figure 2-18. Pull back quick-connect collar and install nozzle.

Technical line drawing of a connector with a pointed tip and threaded end, showing directional arrow (no text or symbols)

Figure 2-18. Insert Nozzle

1. Release quick-connect collar to secure nozzle.
2. Verify nozzle is locked in place.

Blast Pressure Nozzle (Red)

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

Pure mechanical component diagram without any text, numbers, or symbols

Strip Pressure Nozzle (Yellow)

MEDIUM - Higher pressure and medium flow for removing stains on hard porous surfaces such as concrete driveways, garage floors and brick patios.

Diagram of a spray gun emitting light rays from a mechanical component (no text or symbols)

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.

Diagram of a spray gun emitting liquid, showing spray nozzle and fan (no text or symbols)

Wash Pressure Nozzle (White)

DELICATE - Lower pressure and higher flow for gentle cleaning of cars/trucks, boats, RV's, patio furniture, lawn equipment, etc.

Diagram of a spray gun emitting particles from a nozzle, showing spray direction (no text or symbols)

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.

Diagram showing a spray gun emitting particles from a nozzle, with no text or symbols present.

Section 3 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. (00010)

WARNING

Risk of Fire. Hot surfaces could ignite combustibles, resulting in fire. Fire could result in death or serious injury.

(000110)

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. (000108)

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. Only operate 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, ventilation intakes.
• See Figure 3-1. Keep at least 5 ft (1.5 m) of clearance on all sides of power washer including overhead from dwellings and combustibles, when in use.

001554

Figure 3-1. Five Feet of Minimum Clearance

Transporting/Tipping of the Unit

Do not operate, store or transport the unit at an angle greater than 15 degrees.

WARNING

Personal Injury / Equipment Damage. Place wand 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. (000244)

Power Washer Start-Up

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

1. Connect a sufficient water supply.

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

3. Move choke lever (B) to CLOSED position.

NOTE: For warm engine starts, choke lever (B) may need to be in HALF-OPEN or OPEN position. Move choke lever to closed position if engine does not start in HALF-OPEN or OPEN position, then attempt engine start.

B C A 012315

Figure 3-2. Fuel Valve and Choke

1. See Figure 3-2. Move the throttle lever (C - if equipped) to the FULL (rabbit) position.
2. See Figure 3-3. Turn engine switch ON.

OFF ON 000128

Figure 3-3. Engine Switch

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. (000101)

1. Relieve spray gun pressure.
2. Place foot on unit to secure unit from movement when pulling recoil.
3. See Figure 3-4. Firmly grasp the recoil handle. Pull slowly until resistance is felt. Then pull rapidly to start engine.

WARNING

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. (000113)

! WARNING

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.

(000117c)

After engine-start attempt, if engine fails to run, point spray gun in safe direction, and squeeze spray gun trigger to release high pressure.

Technical line drawing of a mechanical component with no visible text or symbols

Figure 3-4. Engine Recoil

1. Return recoil handle slowly. DO NOT let recoil snap back against recoil housing.
2. See Figure 3-2. When engine starts, slowly move choke lever (B) to OPEN position as engine warms. If engine falters, move choke lever to CLOSE position, then to OPEN position.
3. Move the throttle lever (C - if equipped) toward the High position to adjust engine speed.
4. If engine fails to start after six pulls, move choke lever (B) to OPEN position, and repeat steps 6 through 9.

WARNING

Fluid Injection. This machine produces high-pressure fluid streams that can pierce skin. Fluid injection could result in death or serious injury. (000106b)

WARNING

Risk of Fire. Hot surfaces could ignite combustibles, resulting in fire. Fire could result in death or serious injury.

(000110)

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. (000108)

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. (000106b)

IMPORTANT: Spray gun traps high-pressure water, even when engine is stopped and water is disconnected. Always point spray gun in safe 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. (000106b)

WARNING

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.

(000117c)

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.

NOTE: Detergent cannot be applied with high-pressure nozzle (Yellow, White, Green or Red). Only use black nozzle with detergent.

1. Prepare detergent solution as required by job.

2. Insert filter on end of siphoning tube into detergent solution.

NOTE: Verify siphoning tube and filter remain fully submerged in detergent while in use.

NOTE: When inserting siphon tube into detergent solution, route tube to prevent muffler contact. Contact with muffler while in use can damage detergent siphoning tube.

1. Start engine.

2. Apply detergent to a dry surface. Start at lower portion of 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. (000112)

(000112)

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. (000114)

1. Remove black detergent nozzle from lance.
2. Select and install desired high-pressure nozzle.
3. Point spray gun in safe direction and squeeze trigger to flush remaining detergent from system.
4. Keep spray gun a safe distance from area to be sprayed.
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 detergent siphoning tube after each use before stopping the engine.

1. Place detergent siphoning tube/filter in bucket of clean water.
2. Remove high-pressure nozzle from nozzle extension.
3. Select and install black detergent nozzle.
4. Flush for 1-2 minutes.
5. Shut engine OFF.
6. Point spray gun in a safe direction, squeeze 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 of time. Sediments or minerals can deposit 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 remaining liquid from pump.
7. Switch fuel valve to OFF.
8. Store unit in a clean, dry area.

NOTE: If storing for more than 30 days, see Storage.

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.

Adjustable Pressure Setting (if equipped)

The power washer pump is equipped with a feature that allows you to adjust the pressure setting. The pump is preset at the factory to achieve the highest possible pressure. To decrease the pressure, turn the pressure control knob counterclockwise to the desired pressure. Turning the pressure control knob clockwise until it stops will set the pressure back to the factory setting.

Section 4 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, operator must maintain 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 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 tube/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 (Triplex Units)

Change pump oil every 50 hours of operation.

1. Clean area around oil drain plug (A).
2. See Figure 4-1. Remove oil drain plug. Drain oil completely.
3. Install oil drain plug. Do not over tighten.

4. Clean Area around oil dipstick (B).

5. See Figure 4-2. Fill pump with SAE 30 or 10W-40 non-detergent oil. Oil level must be between the L and H marks on dipstick when breather is screwed in. DO NOT OVERFILL.

6. Install oil dipstick until finger tight.

7. Clean up any spilled oil.

B A 001539

Figure 4-1.Drain Pump Oil

H L 000268

Figure 4-2.Dipstick

Pump Oil (Maintenance Free Pumps)

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 clogged screen 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 maximum pressure rating of unit.

Inspect Detergent Siphoning Tube

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

Inspect Spray Gun

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

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000123

Figure 4-3. Test Spray Gun (typical)

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

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:

WARNING

Fluid Injection. This machine produces high-pressure fluid streams that can pierce skin. Fluid injection could result in death or serious injury. (000106b)

1. Turn engine and water supply OFF.

NOTE: Keep high-pressure hose connected to pump and spray gun while system is pressurized.

1. Relieve spray gun water pressure.

2. Remove nozzle from lance.

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

4. See Figure 4-5. Remove lance from spray gun and back flush thoroughly.
5. Install nozzle on lance.
6. Install lance on spray gun.

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Figure 4-4. Remove Debris

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Figure 4-5. Back Flush Lance

1. Verify hose is connected to pump water inlet, and high-pressure hose is connected to spray gun and pump.
2. Turn water ON.
3. Start engine.
4. 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 in accordance with 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.

Figure 4-6. Oil Viscosity

* Below 50°F (10°C) use of SAE 30 will result in hard start.

** Above 80°F (27°C) use of 10W30 may cause increased oil consumption. Inspect oil level more frequently.

Inspect Engine Oil Level

Inspect engine oil level prior to each use, or every 8 hours of operation.

1. Place power washer on a level surface.
2. Clean area around oil fill.
3. See Figure 4-7. Remove oil fill cap and wipe dipstick clean.

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000115
Figure 4-7. Engine Oil Fill

1. See Figure 4-8. Screw dipstick into filler neck. Verify proper oil level on dipstick.

Technical line drawing of a threaded fastener or screw with labeled end (E) and base (L) ends, no text or symbols present.

000116
Figure 4-8. Oil Level

1. Add recommended engine oil as necessary.
2. 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 power washer on a level surface.
2. Disconnect the spark plug wire from the spark plug and place the wire where it cannot contact spark plug.
3. Clean area around oil fill, and oil drain plug.

4. Remove oil fill cap.

5. See Figure 4-9. Remove oil drain plug (A) and drain oil completely into a suitable container.

6. Install oil drain plug and tighten securely.

7. See Figure 4-8. Slowly pour oil into oil fill opening until oil level is between L and H marks on dipstick. DO NOT overfill.
8. Install oil fill cap, and finger tighten.
9. Wipe up any spilled oil.
10. Properly dispose of oil in accordance with all applicable regulations.

001556

Figure 4-9.Oil Drain Plug

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 spark plug.
3. See Figure 4-10. Inspect electrode gap with wire feeler gauge and replace spark plug if gap (A) is not within specification listed on Product Specifications Sheet.

Technical illustration showing a spark plug being inserted into a mechanical component (no text or symbols present)

Figure 4-10. Spark Plug

NOTE: Replace spark plug if electrodes are pitted, burned or porcelain is cracked. Use ONLY recommended replacement plug. See Product Specifications Sheet.

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

(000102)

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: 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.

NOTE: Call 1-888-GENERAC (1-888-436-3722) with questions about component replacement.

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. (000108)

1. See Figure 4-11. Loosen fasteners (A) and remove heat shield from muffler.
2. See Figure 4-12. Loosen fasteners (B) and remove spark arrestor from 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.

A 000135

Figure 4-11. Heat Shield Fasteners

Technical line drawing of a mechanical component with labeled point B (no text or symbols beyond label)

Figure 4-12. Spark Arrestor Fasteners

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.

(000105)

WARNING

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

(000109)

• DO NOT place a storage cover on a hot power washer. Allow unit to cool to room temperature before storage.
• DO NOT store fuel from one season to another unless properly treated.
• Replace fuel container if rust is present. Rust in fuel will cause fuel system problems.
• Cover unit with a suitable protective, moisture resistant cover.
• Store 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 fuel stabilizer according to package directions.

If fuel stabilizer is added to fuel system, prepare and run engine according to Power Washer Start-Up. Run 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 container 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 remaining liquid from pump.

9. Winterize pump with Generac Pump Shield™. This minimizes freeze damage and lubricates pistons and seals.

NOTE: If Generac Pump Shield™ is not available, connect a 3 ft (1 m) section of garden hose to water inlet adapter. Pour RV-antifreeze (alcohol free antifreeze) into hose. Pull recoil handle twice. Disconnect hose.

Store unit in a clean and dry area.

Troubleshooting

Problem Cause Correction
Pump fails to produce pressure, has erratic pressure, chattering, loss of pressure, low water volume.	1. Low pressure nozzle installed.2. Water inlet is obstructed.3. Inadequate water supply.4. Inlet hose kinked or leaking.5. Clogged hose inlet screen.6. Water supply is over 100°F (38 °C).7. High-pressure hose is obstructed, or leaks.8. Spray gun leaks.9. Nozzle is obstructed.10. Pump is faulty.	1. Replace with high-pressure nozzle.2. Clean inlet.3. Provide adequate water flow.4. Straighten inlet hose, patch leak.5. Inspect and clean inlet hose screen.6. Provide cooler water supply.7. Clear obstructions or replace hose.8. Replace spray gun.9. Clean nozzle.10. Contact Independent Authorized Service Dealer.
Detergent fails to mix with spray.	1. Detergent siphoning tube is not submerged.2. Detergent siphoning tube/ filter is obstructed or cracked.3. High-pressure nozzle installed.	1. Insert detergent siphoning tube into detergent.2. Clean or replace filter/ detergent siphoning tube.3. Install low-pressure nozzle.
Engine runs well at no-load, but bogs when load is applied.	Engine speed too low. Contact Independent Authorized Service Dealer.
Engine will not start, or starts and runs rough.	1. Dirty air filter.2. Out of fuel3. Stale fuel.4. Spark plug wire not connected to plug.5. Bad spark plug.6. Water in fuel.7. Excessively rich fuel mixture.8. Low oil level (units with low oil level shutdown).9. Choke in ON position.	1. Clean or replace air filter.2. Fill fuel tank.3. Replace with fresh fuel.4. Connect wire to spark plug.5. Replace spark plug.6. Drain fuel tank, replace with fresh fuel.7. Contact Independent Authorized Service Dealer.8. Fill the crankcase.9. Set choke to OFF position.
Engine shuts down during operation/	Out of fuel. Fill fuel tank.
Engine lacks power. Dirty air filter.	Replace air filter.

Part No.0L5087 Rev. C 03/03/2021

©2021 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®

Generac Power Systems, Inc.

S45 W29290 Hwy. 59

Waukesha, WI 53189

1-888-GENERAC (1-888-436-3722)

www.generac.com

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Imagen 2-18. Insertar boquilla

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Imagen 4-2. Varilla

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000109

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000116

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Imagen 4-10. Bujía

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000136

©2021 Generac Power Systems, Inc.

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001531
Figure 2-3. Insertion des buses

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000116

Simple line drawing of a hand using a lever to lift a valve on a control panel, with a gas pump nearby (no text or symbols)

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Diagram of a connector being inserted into a cable, showing a curved arrow indicating rotation (no text or symbols present)

Figure 2-12. Raccordez la lance

Mechanical assembly diagram showing pipe connection with connector and valve (no text or symbols)

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Diagram of a mechanical component being inserted into a spring, showing a curved arrow indicating rotation (no text or symbols present)

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000123

Technical line drawing of a connector with a pointed tip and threaded end, showing directional arrow (no text or symbols)

Figure 2-18. Insertion de la buse

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Diagram of a spray gun emitting light rays from a mechanical component (no text or symbols)

Diagram of a spray gun emitting particles from a nozzle, labeled 001399 (no text or symbols on diagram)

Diagram showing a spray gun emitting particles from a nozzle, with no text or symbols present.

Diagram showing a vehicle-mounted electric shock test setup with labeled components and airflow direction

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000129

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000134a
Figure 4-10. Bougie d'allumage

Technical line drawing of a mechanical component with labeled point B (no text or symbols beyond label)

©2021 Generac Power Systems, Inc.