Generac Pressure Washer 6564 Manuel utilisateur

www.generac.com or 1-888-436-3722

Operator's Manual

Power Washer

Introduction ............................................................. 1

Safety Rules ........................................................... 1

Safety Symbols and Meanings .......................................1

General Information ................................................ 4

Know Your Power Washer .........................................................4

Product Specifications ..............................................................5

Emissions Information ..............................................................5

High Altitude Operation ..............................................................5

Unpacking .................................................................................6

Set-up ..................................................................... 6

Assembly ..................................................................................6

Add Engine Oil ..........................................................................7

Check Pump Oil ........................................................................7

Add Fuel ...................................................................................8

Connect Hose and Water Supply to Pump .................................8

How to Use Nozzles ................................................................10

Operation .............................................................. 12

Operation ................................................................................12

Power Washer Location ..........................................................12

Checklist Before Starting Engine ..............................................12

How to Start Your Power Washer ............................................13

Automatic Cool Down System (Thermal Relief) .......................14

Adjustable Pressure Setting .....................................................14

How to Stop Your Power Washer .............................................15

Maintenance ......................................................... 15

Maintenance Recommendations ..............................................15

Maintenance Schedule ............................................................15

Emissions Control ...................................................................15

Power Washer Maintenance ....................................................16

Check and Clean Inlet Screen ..................................................16

Check High Pressure Hoses ....................................................16

Check Detergent Siphoning Tube .............................................16

Check Spray Gun ....................................................................16

Nozzle Maintenance ................................................................16

Pump Oil Maintenance ............................................................17

Engine Maintenance ................................................................17

Engine Oil Recommendations ..................................................17

Service Air Cleaner .................................................................18

Service Spark Plug ..................................................................19

Inspect Muffler and Spark Arrestor ..........................................19

After Each Use ........................................................................20

Winter Storage ........................................................................20

Long Term Storage..................................................................20

Other Storage Instructions .......................................................21

Transporting/Tipping of the Unit ..............................................21

Troubleshooting .................................................... 22

Troubleshooting Guide .............................................................22

Notes .................................................................... 23

Table of Contents

WARNING!

California Proposition 65

Engine exhaust and some of its constituents are known to the state of California to cause cancer,

birth defects, and other reproductive harm.

WARNING!

California Proposition 65

This product contains or emits chemicals known to the state of California to cause cancer,

birth defects, and other reproductive harm.

INTRODUCTION

Thank you for purchasing this power washer manufactured by

Generac Power Systems, Inc. This model is a high performance,

air-cooled, engine-driven power washer that operates between

3000 and 4000 psi depending on which model you purchased.

These units feature powerful Generac engines, a triplex pump with

ceramic coated pistons, a pressure control valve, an automatic

thermal relief system, a professional grade spray gun with

vibration isolation for reduced fatigue, a stainless steel lance, quick

connect nozzles, steel reinforced high pressure rubber hose for

long life and maximum flexibility and a detergent siphoning hose.

Common sense and strict compliance with the special instructions

are essential to preventing accidents. The operator must read

this manual and thoroughly understand all of the instructions

and warnings before using the equipment. If any portion of the

manual is not understood, contact the nearest Authorized Dealer

for starting, operating and servicing procedures. The owner is

responsible for proper and safe use of the equipment.

The power washer can operate safely, efficiently and reliably only

if it is properly located, operated and maintained. Before operating,

servicing or storing:

• Study all warnings in this manual and on the product carefully.

• Become familiar with this manual and the unit before use.

• Refer to the Assembly section of the manual for instructions on

final assembly procedures. Follow the instructions completely.

The manufacturer cannot anticipate every possible circumstance

that might involve a hazard. The warnings in this manual, and on

tags and decals affixed to the unit are, therefore, not all inclusive.

If using a procedure, work method or operating technique that the

manufacturer does not specifically recommend, ensure that it is

safe for others. Also make sure the procedure, work method or

operating technique utilized does not render the power washer

unsafe.

THE INFORMATION CONTAINED HEREIN WAS BASED ON

MACHINES IN PRODUCTION AT THE TIME OF PUBLICATION.

GENERAC RESERVES THE RIGHT TO MODIFY THIS MANUAL AT

ANY TIME.

Save these instructions for future reference. If you loan this

device to someone, ALWAYS loan ALL instructional materials to

the individual as well.

WHERE TO FIND US

You can contact Generac Customer Service by phone at 1-888-

436-3722, or on the internet at www.generac.com. Record the

important information of the unit in the following chart for future

reference and/or service inquiries.

Model Number

Serial Number

Date Purchased

SAFETY RULES

Throughout this publication, and on tags and decals affixed to

the power washer, 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. Their definitions

are as follows:

Indicates a hazardous situation or action which, if not avoided,

will result in death or serious injury.

Indicates a hazardous situation or action which, if not avoided,

could result in death or serious injury.

Indicates a hazardous situation or action 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 body of this manual.

These safety warnings 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

KickbackToxic Fumes Electrical Shock

Fluid InjectionFall

Fire Explosion Operator’s Manual

Slippery Surface

Moving Parts Flying Objects Hot Surface

Hearing Protection

KickbackToxic Fumes Electrical Shock

Fluid InjectionFall

Fire Explosion Operator’s Manual

Slippery Surface

Moving Parts Flying Objects Hot Surface

Hearing Protection

Introduction

1



WARNING: Hearing Protection Recommended.



DANGER: NEVER aim spray gun at people, animals, or

electrical devices. Serious injury or death will result.

ALWAYS point spray gun in safe direction, squeeze spray gun

trigger to release high pressure, every time you stop engine.

Engage trigger lock when not in use.

• The high pressure stream of water that this equipment

produces can cut through skin and its underlying tissues,

leading to serious injury, possible amputation or death.

Spray gun traps high water pressure, EVEN WHEN engine

is stopped and water is disconnected, which can cause

injury.

• NEVER allow CHILDREN to operate power washer or play nearby.

This is NOT a toy.

• NEVER repair high pressure hose. Replace it.

• NEVER repair leaking connections with sealant of any kind.

Replace o-ring or seal.

• NEVER connect high pressure hose to nozzle extension.

• Keep high pressure hose connected to pump and spray gun

while system is pressurized.

• NEVER secure spray gun in open position.

• NEVER leave spray gun unattended while machine is running.

• NEVER use a spray gun which does not have a trigger lock or

trigger guard in place and in working order.

• ALWAYS be certain spray gun, nozzles and accessories are

correctly attached.



WARNING: Risk of electrocution.

Contact with power source can cause electric shock or

burn.

• NEVER spray near power source.



WARNING: Contact with muffler area can result in serious

burns. Exhaust heat/gases can ignite combustibles,

structures or damage fuel tank causing a fire.

• DO NOT touch hot parts and AVOID hot exhaust gases.

• Allow equipment to cool before touching.

• Keep at least five (5) feet (152 cm) of clearance on all

sides of power washer including overhead.

• 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 arrester, as defined in

Section 4442, maintained in effective working order. Other

states or federal jurisdictions may have similar laws.

Contact the original equipment manufacturer, retailer, or dealer to

obtain a spark arrester designed for the exhaust system installed

on this engine.

• Replacement parts must be the same and installed in the same

position as the original parts.



WARNING: Fuel and its vapors are extremely flammable and

explosive. Fire or explosion can cause severe burns or death.

WHEN ADDING OR DRAINING FUEL

• Turn power washer OFF and let it cool at least two (2)

minutes before removing fuel cap. Loosen cap slowly to

relieve pressure in tank.

• Fill or drain fuel tank outdoors.

• DO NOT overfill tank. Allow space for fuel expansion.

• If fuel spills, wait until it evaporates before starting

engine.

• Keep fuel away from sparks, open flames, pilot lights, heat, and

other ignition sources.

• DO NOT light a cigarette or smoke.

WHEN STARTING EQUIPMENT

• Ensure spark plug, muffler, fuel cap, and air cleaner are in place.

• DO NOT crank engine with spark plug removed.

WHEN OPERATING EQUIPMENT

• DO NOT tip engine or equipment at angle which causes fuel to

spill.

• DO NOT spray flammable liquids.

WHEN TRANSPORTING OR REPAIRING EQUIPMENT

• Transport/repair with fuel tank EMPTY or with fuel shutoff valve

OFF.

• Disconnect spark plug wire.

WHEN STORING FUEL OR EQUIPMENT WITH FUEL IN TANK

• Store away from furnaces, stoves, water heaters, clothes dryers,

or other appliances that have pilot light or other ignition source

because they can ignite fuel vapors.

Safety Rules

2



WARNING: Use of power washer can create puddles and

slippery surfaces. Kickback from spray gun can cause you to

fall.

• Use only on a level surface.

• The cleaning area should have adequate slopes and

drainage to reduce the possibility of a fall due to slippery

surfaces.

• Do not use on elevated surfaces where chance of kickback

could result in a serious fall.

• Firmly grasp spray gun with both hands when using high

pressure spray to avoid injury when spray gun kicks back.



WARNING: Starter and other rotating parts can

entangle hands, hair, clothing, or accessories.

• NEVER operate power washer without protective housing

or covers.

• DO NOT wear loose clothing, jewelry or anything that

may be caught in the starter or other rotating parts.

• Tie up long hair and remove jewelry.



WARNING: Starter cord kickback (rapid retraction) can result

in bodily injury. Kickback will pull hand and arm toward

engine faster than you can let go. Broken bones, fractures,

bruises, or sprains could result.

• NEVER pull starter cord without first relieving spray gun

pressure.

• To relieve trapped pressure, point gun in safe direction and

release pressure by pulling/actuating trigger on spray gun.

• When starting engine, pull cord slowly until resistance is felt and

then pull rapidly to avoid kickback.

• After each starting attempt, where engine fails to run, always

point spray gun in safe direction, and squeeze spray gun trigger

to release high pressure.

• Firmly grasp spray gun with both hands when using high

pressure spray to avoid injury when spray gun kicks back.



WARNING: Unintentional sparking can result in fire or electric

shock.

WHEN ADJUSTING OR MAKING REPAIRS TO YOUR POWER

WASHER.

• Disconnect the spark plug wire from the spark plug and

place the wire where it cannot contact spark plug.

WHEN TESTING FOR ENGINE SPARK

• Use approved spark plug tester.

• DO NOT check for spark with spark plug removed.



WARNING: Risk of eye injury. Spray can splash back or

propel objects.

• Always wear safety goggles when using this equipment or

in vicinity of where equipment is in use.

• Before starting the power washer, be sure you are

wearing adequate safety goggles.

• NEVER substitute safety glasses for safety goggles.

NOTE:

High pressure spray may damage fragile items including

glass.

• DO NOT point spray gun at glass when using red (0°) MAX

nozzle.

• NEVER aim spray gun at people, animals, electrical devices or

plants.

NOTE:

Improper treatment of power washer can damage it and

shorten its life.

• If you have questions about intended use, ask dealer or contact

qualified service center.

• NEVER operate units with broken or missing parts, or without

protective housing or covers.

• DO NOT by-pass any safety device on this machine.

• DO NOT operate power washer above rated pressure.

• DO NOT modify power washer in any way.

• Before starting power washer in cold weather, check all parts of

the equipment to be sure ice has not formed there.

• NEVER move machine by pulling on hoses. Use handle

provided on unit.

• Check fuel system for leaks or signs of deterioration, such as

chafed or spongy hose, loose or missing clamps, or damaged

tank or cap. Correct all defects before operating power washer.

• This equipment is designed to be used with Generac authorized

parts ONLY. If equipment is used with parts that DO NOT

comply with minimum specifications, user assumes all risks

and liabilities.

Safety Rules

3

4

KNOW YOUR POWER WASHER

Read this owner’s manual and safety rules before operating your

power washer.

If you loan this device to someone, ALWAYS loan ALL instructional

documentation to the individual as well. Compare the illustrations

with your high power washer to familiarize yourself with the

locations of various controls (Figure 1). Save this manual for future

reference. Replacement owner’s manuals can be printed from the

Generac Web site.

A - Spray Gun – Controls the application of water onto the

cleaning surface with trigger device. Includes a trigger lock.

B - Lance with Quick Connect – Allows you to switch between

four different nozzles.

C - High Pressure Hose – Connect one end to water pump and

the other to the spray gun.

D - Recoil Starter – Use for starting the engine.

E - Oil Fill – Check and add engine oil here.

F - Air Filter – Protects engine by filtering dust, and debris out of

the intake air.

G - Pump – Develops high pressure.

H - Thermal Relief Valve – Cycle’s water through the pump when

water reaches 125°F. Warm water will discharge from pump

onto ground. This prevents internal pump damage.

I - Engine On/Off Switch – Run this switch to “ON” before using

the recoil starter. Turn the switch to “OFF” to stop the engine.

J - Pressure Control/Unloader Valve – Controls the high pressure

output.

K - High Pressure Outlet – Connection for high pressure hose.

L - Water Inlet – Connection for Garden Hose.

M - Fuel Tank – Fill tank with regular unleaded fuel. Always leave

room for fuel expansion.

N - Fuel On/Off Switch – Turns fuel supply to the engine on and

off.

O - Choke – Prepares a cold engine for starting.

P - Throttle Lever – Increases or decreases engine speed. Throttle

should be at maximum travel when the pressure washer is in

use.

Q - Nozzles – Chemical injection, 0°, 15°, 25°, 40° (white, yellow,

red and black) for various high pressure cleaning applications.

R - Pull Pin – Pull the ring to unlock the handle. This allows the

handle to be collapsed for storage.

S - Adjustable Side Handle – Adjustable by turning counter clock-

wise to loosen, adjust to comfortable position and tighten

clock-wise. This allows for a firm operating grip of the spray

gun.

T - Oil Drain – Drain engine oil here.

U - Serial Number Location

ITEMS NOT SHOWN

Identification Label (near rear of base plate) – Provides model

and serial number of pressure washer. Please have these readily

available if calling for assistance.

Detergent Siphoning Tube/Filter – Use to siphon pressure washer

safe detergents into the low pressure stream.

General Information

A

C

F

Q

R

D

B

M

I

P

O

N

J

K

L

H

G

S

T

E

U

Figure 1 – Features & Controls

5

General Information

EMISSIONS INFORMATION

The U.S. Environmental Protection Agency (and California Air

Resource Board for equipment certified to CA standards) requires

that this engine comply with exhaust and evaporative emission

standards. Locate the emissions compliance decal on the engine

to determine what standards the engine meets, and to determine

which emissions warranty applies. The engine is certified to meet

the applicable emission standards on gasoline. It is important to

follow the maintenance specifications in the Maintenance section

to ensure that the engine complies with the applicable emission

standards for the duration of the product’s life. This engine utilizes

lean carburetion settings and other systems to reduce emissions.

Tampering with or altering the emission control system may

increase emissions and may be a violation of Federal or California

Law. Acts that constitute tampering include but are not limited to:

• Removal or alteration of any part of the intake, fuel, or exhaust

systems

• Altering or defeating the governor linkage or speed-adjusting

mechanism to cause the engine to operate outside its design

parameters

If you are aware of any of the following symptoms, have your

engine inspected and repaired by your servicing dealer:

• Hard starting or stalling after starting

• Rough idle

• Misfiring or backfiring under load

• Afterburning (backfiring)

• Black exhaust smoke or high fuel consumption

HIGH ALTITUDE OPERATION

The fuel system on this engine may be influenced by operation at

higher altitudes. Proper operation can be ensured by installing an

altitude kit when required. See the table below to determine when

an altitude kit is required. Operating this engine without the proper

altitude kit installed may increase the engine’s emissions and

decrease fuel economy and performance. Kits may be obtained

from any Dealer, and should be installed by a qualified individual.

Altitude Range* Kit Number PSI

0 - 5000 Feet Not Required 3100/3800/4200

5000 - 7000 Feet 0K2016 3100

5000 - 7000 Feet 0K2017 3800

5000 - 7000 Feet 0K2018 4200

*Elevation above sea level.

NOTE:

If the altitude kit has been installed and the engine will be

operated at an altitude where the kit is not required, the

engine should be returned to the original factory configuration.

Operating the engine at lower altitudes with the kit installed

may cause the engine to overheat and result in serious engine

damage, and may result in decreased performance and

increased emissions.

PRODUCT SPECIFICATIONS

Pressure - (PSI / BAR) 3100 / 213 3800 / 262 4200 / 290

Flow Rate - (GPM / LPM) 2.8 / 10.6 3.6 / 13.6 4.0 / 15.1

Water Supply Temperature - (°F / C°) 100 / 38 Max

Hose Length - (Feet / Meters) 35 / 10.7 50 / 15.2

Nozzles - Number per Unit 5

Lance Length (Inches / cm) 20 / 51 33 / 84 33 / 84

Gun Professional

Engine Displacement - (Cubic Inch / cc) 12.9 / 212 18.4 / 302 25.6 / 420

Spark Plug Type F7TC or equivalent

Spark Plug Gap - (Inches / mm) 0.028-0.031 / 0.70-0.80

Fuel Capacity - (Quarts / Liters) 3.7 / 3.5 6.9 / 6.5 9.1 / 8.6

Engine Oil Capacity - (Oz / Liters) 20 / 0.6 37 / 1.1 37 / 1.1

Low Oil Shut Down System Yes

On / Off Switch Yes

6

Set-up

UNPACKING

1. Remove the parts bag, accessories, and inserts included with

power washer.

2. Open carton completely by cutting each corner from top to

bottom.

3. Ensure you have all included items prior to assembly.

• Main Unit

• High Pressure Hose

• Siphon Hose & Filter

• Spray Gun

• Lance with Quick Connect Fitting

• Oil Bottle

• Parts Bag (which includes the following):

– Hose Hook Wireform with Screws and Allen Wrench

– Operator’s Manual

– Owner’s Registration Card

– Bag containing Color-coded Nozzles

– Filter Screen

4. If you are missing any items from your carton, please call

Generac Customer Service at 1-888-436-3722. When calling

for assistance, please have the model and serial number from

the data tag available.

5. Fill out and send in registration card. Write Model number,

Serial number & date of purchase in the table located in the

"Where to Find Us" section.

ASSEMBLY

Read the entire operator’s manual before you attempt to assemble,

or if you have any problems with the assembly of your power

washer, please call Generac Customer Service at 1-888-436-

3722. When calling for assistance, please have the model and

serial number from the data tag available.

1. The handle may be folded down or locked into position using

the integrated pull pin.

Figure 2 – Attach Handle

A

2. Install hose hook using provided screws and allen wrench

(Figure 3).

Figure 3 – Install Hose Hook

3. Insert color-coded nozzles in spaces provided in handle

(Figure 4).

4. Place spray gun and nozzle extension into spray gun holder as

shown (Figure 4).

Figure 4 – Insert Nozzles

5. Coil high pressure hose and hang on hook.

6. Attach siphon tube to location A (Figure 5).

Figure 5 – Siphon Tube Location

A

7

Set-up

ADD ENGINE OIL

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

2. Clean area around oil fill and remove orange oil fill cap/dipstick

(Figure 6).

Figure 6 – Fill Engine Oil

3. Using oil funnel (optional), slowly pour oil into oil fill opening.

See Maintenance section for oil type recommendation.

NOTE:

On some units there is more than one oil fill location. In these

instances it is only necessary to use one of the oil fill points.

4. Check periodically until the oil level is between "L" and "H" on

the dipstick (Figure 7). DO NOT OVERFILL.

NOTE:

Any attempt to crank or start the engine before it has been

properly serviced with the recommend oil may result in engine

failure.

5. Replace oil fill cap/dipstick and fully tighten.

Figure 7 – Dipstick

Acceptable Oil

Level Range

CHECK PUMP OIL

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

2. Clean area around oil fill and remove vented cap/dipstick (B)

(Figure 8).

Figure 8 – Check Pump Oil

A

B

3. Check to confirm oil level is between the "L" and "H" on the

dipstick (Figure 9). If oil is required, see Maintenance section.

DO NOT OVERFILL.

4. See the Maintenance section for additional information on

pump oil maintenance.

5. Install oil dipstick until finger tight.

6. Clean up any spilled oil.

Figure 9 – Pump Oil Dipstick

“H”

Acceptable Oil

Level Range

“L”

8

ADD FUEL

Fuel must meet these requirements:

• Clean, fresh, unleaded gasoline.

• A minimum of 87 octane/87 AKI (91 RON).

• Gasoline with up to 10% ethanol (gasohol) is acceptable.

NOTE:

Avoid power washer damage. Failure to follow Operator’s

Manual for fuel recommendations voids warranty.

• DO NOT use unapproved gasoline such as E85.

• DO NOT mix oil in gasoline.

• DO NOT modify engine to run on alternate fuels.

To protect the fuel system from gelling, mix in a fuel stabilizer when

adding fuel. See Storage. All fuel is not the same. If you experience

starting or performance problems after using fuel, switch to a

different fuel provider or change brands.

Fuel and its vapors are extremely flammable

and explosive. Fire or explosion can cause

severe burns or death.

WHEN ADDING FUEL

• Turn power washer OFF and let it cool at least two (2) minutes

before removing fuel cap. Loosen cap slowly to relieve pressure in

tank.

• Fill fuel tank outdoors.

• DO NOT overfill tank. Allow space for fuel expansion.

• If fuel spills, wait until it evaporates before starting engine.

• Keep fuel away from sparks, open flames, pilot lights, heat, and

other ignition sources.

• DO NOT light a cigarette or smoke.

1. Clean area around fuel fill cap, remove cap.

2. Slowly add regular unleaded fuel to fuel tank. Be careful not

to overfill. Fill to bottom of filter screen, this will allow for fuel

expansion (Figure 10).

3. Install fuel cap and let any spilled fuel evaporate before

starting engine.

Figure 10 – Adding Fuel

CONNECT HOSE AND WATER SUPPLY TO PUMP

NOTE:

DO NOT run the pump without the water supply connected

and turned on. Damage to equipment resulting from failure to

follow this instruction will void warranty.

NOTE:

Remove and discard the shipping cap from the pump’s water

inlet before attaching hose.

1. Run water through your garden hose for 30 seconds to clean

out any debris.

2. Before connecting garden hose to water inlet, inspect inlet

screen before installing (A) (Figure 11). The cone should face

outward. Clean screen if it contains debris or have it replaced

if damaged. DO NOT run power washer if inlet screen is

damaged.

IMPORTANT: DO NOT siphon standing water for the water supply.

Use ONLY cold water (less than 100°F). Water supply must be

adequate to handle greater than 3.8 gallons per minute and no less

than 30 psi.

NOTE:

Using a One Way Valve (vacuum breaker or check valve) at

pump inlet can cause pump or inlet connector damage.

• There MUST be at least ten feet of unrestricted garden hose

between the power washer inlet and any device, such as a

vacuum breaker or check valve.

• Damage to equipment resulting from failure to follow this

instruction will void warranty.

Figure 11 – Inspect Inlet Screen

A

3. Connect the garden hose (not to exceed 50 feet in length) to

the water inlet (Figure 12). Tighten by hand.

Set-up

9

Figure 12 – Connect Garden Hose

Risk of eye injury. Spray can splash back or propel

objects.

• Always wear safety goggles when using this equipment or in

vicinity of equipment in use.

• Before starting the power washer, be sure you are wearing

adequate safety goggles.

• NEVER substitute safety glasses for safety goggles.

4. Connect lance to spray gun (Figure 13). Tighten by hand.

Figure 13 – Attach Lance

5. Attach end of high pressure hose to base of spray gun (Figure

14).

The high pressure stream of water that this equipment

produces can cut through skin and its underlying

tissues, leading to serious injury, possible amputation

or death. Spray gun traps high water pressure, even

when engine is stopped and water is disconnected,

which can cause injury.

• NEVER connect high pressure hose to lance.

• Keep high pressure hose connected to pump and spray gun while

system is pressurized.

• Always be certain spray gun, nozzles and accessories are

correctly attached.

Figure 14 – Connect Hose to Spray Gun

6. Connect high pressure hose to pump (uncoil hose before

connecting to pump or spray gun) (Figure 15).

Figure 15 – Connect High Pressure Hose to Pump

7. Turn ON the water, squeeze the trigger to purge the pump

system of air (Figure 16).



The hose can be damaged if it comes in contact with a

hot engine or muffler.

Figure 16 – Squeeze Trigger

Set-up

10

HOW TO USE NOZZLES

The quick–connect on the nozzle lance allows you to switch

between different nozzles. Nozzles can be changed while the

power washer is running, once the spray gun trigger is locked

in the safety position. The nozzles vary the pressure and spray

pattern as shown.

• For the most effective cleaning, keep the nozzle from 8 to 24

inches (20 to 61 cm) away from the surface being cleaned.

• If you get the nozzle too close, especially using a high pressure

nozzle, you may damage the surface being cleaned.

The high pressure stream of water that this equipment

produces can cut through skin and its underlying

tissues, leading to serious injury, possible amputation

or death. Spray gun traps high water pressure, even

when engine is stopped and water is disconnected,

which can cause injury.

• NEVER exchange nozzles without the trigger lock being engaged on

the spray gun.

• DO NOT twist nozzles while spraying.

Follow these instructions to change nozzles:

1. Pull back the collar on the quick–connect and pull the current

nozzle off. Store nozzles in the accessory storage holder

(Figure 17).

Figure 17 – Nozzles

2. Select desired nozzle:

3. Pull back on the collar, insert the new nozzle and release the

collar. Tug on the nozzle to make sure it is securely in place.

• The WHITE NOZZLE is used for delicate rinse (lower pressure and

higher flow), for gentle cleaning of cars/trucks, boats, RV’s, patio

furniture, lawn equipment, etc. (Figure 18).

Figure 18 – Wash Pressure Nozzle (White)

• The GREEN NOZZLE is for general rinsing (medium pressure and

medium flow), ideal for most all purpose cleaning such as home

siding, brick patios, wood decks, driveways and sidewalks, garage

floors, etc. (Figure 19).

Figure 19 – Clean Pressure Nozzle (Green)

• The yellow nozzle is for medium rinsing (higher pressure and

medium flow), ideal for removing stains on hard porous surfaces

such as concrete dirveways, garage floors and brick patios, select

yellow nozzle (Figure 20).

Figure 20 – Strip Pressure Nozzle (Yellow)

Set-up

11

• The RED NOZZLE is for maximum rinsing (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.) (Figure 21).



This tip (Red Nozzle) can damage work surfaces if it is

too close, or held in one position for an extended time.

Figure 21 – Blast Pressure Nozzle (Red)

• Use the BLACK NOZZLE when applying detergent (Figure 22).

Only use power washer safe detergents/soaps to help break down

stubborn dirt and grime on a variety of surfaces.

Figure 22 – Detergent Nozzle (Black)

CLEANING AND APPLYING DETERGENT



Chemicals can cause bodily injury, and/or property

damage.

• NEVER use caustic liquid with the power washer.

• Use ONLY power washer safe detergents/soaps. Follow all

manufacturer's instructions.

To apply detergent, follow these steps:

1. Review proper use of nozzles.

2. Prepare detergent solution as required by the job into a

container located within the proximity of the siphon tube.

3. Make sure the siphoning tube remains fully submerged into

the detergent.

NOTE:

Make sure the filter remains fully submerged in detergent

while applying detergent.

NOTE:

Contact with the hot muffler can damage the detergent

siphoning tube.

4. When inserting the siphon into a detergent solution bottle, route the

tube so as to keep it from inadvertently contacting the hot muffler.

5. Make sure the black detergent nozzle is installed.

NOTE:

Detergent cannot be applied with the high pressure nozzles

(Yellow, White, Green or Red). Only use the Black nozzle with

detergent.

6. Confirm that all set-up instructions have been followed.

NOTE:

You must attach all the hoses before you start the engine.

• Starting the engine without all the hoses connected, and without

the water turned ON, will damage the pump.

• Damage to the equipment resulting from failure to follow these

instructions will void the warranty.

7. Start engine following instructions How to Start Your Power

Washer.

8. Apply detergent to a dry surface, starting at the lower portion

of the area to be washed and work upward using long, even,

overlapping strokes.

9. Allow the detergent to "soak in" for 3-5 minutes before

washing and rinsing. Reapply as needed to prevent the

surface from drying. DO NOT allow the detergent to dry on the

surface being cleaned (prevents streaking).

IMPORTANT: You must flush the detergent siphoning system after

each use by placing the filter into a bucket of clean water, then run

the power washer in low pressure for 1-2 minutes.

POWER WASHER RINSING

1. Remove the black detergent nozzle from the lance.

2. Select and install the desired high pressure nozzle following

the instructions How to Use Nozzles.

3. Point the spray gun in a safe direction and away from people,

animals and plants. Squeeze the trigger to flush any remaining

chemicals from the system.

4. Keep the spray gun a safe distance from the area you plan to

spray.

Kickback from the spray gun can cause you to

fall.

• Use only on a level surface.

• Do not use on an elevated surface to prevent the risk of a

serious fall.

• Firmly grasp the spray gun with both hands when using the high

pressure spray to avoid injury when the spray gun kicks back.

Set-up

12

5. Apply a high pressure spray to a small area and then check

surface for damage. If no damage is found, you can assume

it is okay to continue rinsing.

6. Start at the top of the area to be rinsed, working down with the

same overlapping strokes used for cleaning.

CLEANING DETERGENT SIPHONING TUBE

If you used the detergent siphoning tube, you must flush it with

clean water before stopping the engine.

1. Place the detergent siphoning tube/filter in a bucket full of

clean water.

2. Remove the high pressure nozzle from the nozzle extension.

3. Select and install the black detergent nozzle following the

instructions How to Use Nozzles.

4. Flush for 1-2 minutes.

5. Shut the engine off following the instructions How to Stop

Power Washer, and turn off water supply.

6. ALWAYS point the spray gun in a safe direction, squeeze the

spray gun trigger to release retained high water pressure.

Engage the trigger lock when not in use.

IMPORTANT: Spray gun traps high water pressure, even when the

engine is stopped and water is disconnected.

The high pressure stream of water that this equipment

produces can cut through skin and its underlying

tissues, leading to serious injury, possible amputation

or death. Spray gun traps high water pressure, even

when engine is stopped and water is disconnected,

which can cause injury.

• Keep the high pressure hose connected to the pump and spray gun

while the system is pressurized.

• ALWAYS point the spray gun in a safe direction, and squeeze the

spray gun trigger to release high pressure every time you stop

the

engine. Engage the trigger lock when not in use.

OPERATION

If you have any problems operating your power washer, please call

Generac customer service at 1-888-436-3722.

POWER WASHER LOCATION

Clearances and Air Movement

DANGER: Carbon monoxide produced during use CAN

KILL in minutes. NEVER use indoors or in other

sheltered areas, EVEN IF doors and windows are open.

Only use OUTSIDE and far away from windows, doors

and vents.

NOTE:

For more information, reference the Carbon Monoxide

warnings in the Safety Rules section.

Place the power washer outdoors, in an area that will not

accumulate deadly exhaust gas. NEVER place the power washer

where exhaust gas could accumulate and enter inside, or be

drawn into a potentially occupied building. Ensure the exhaust

gas is kept away from any windows, doors, ventilation intakes,

or other openings that can allow the exhaust gas to collect in a

confined area. Prevailing winds and air currents should be taken

into consideration when positioning the power washer (Figure 23).

• Operate the power washer outdoors ONLY.

• Keep the exhaust gas from entering a confined area through

windows, doors, ventilation intakes, or other openings.

• NEVER start or run engine indoors, in a vehicle, or in an enclosed

area, EVEN IF windows and doors are open.

Exhaust heat/gases can ignite combustibles,

structures or damage the fuel tank causing a

fire.

• Keep at least 5 ft. (152 cm) clearance on all sides of the power

washer including overhead.

Figure 23 – Building Clearances

5 Foot Minimum

CHECKLIST BEFORE STARTING ENGINE

1. Be sure to read and understand the Operator Safety section

and the Operation section before using the power washer.

2. Check that oil is at the proper level in the engine crankcase and

that fuel has been added to the fuel tank.

3. Review the unit's assembly and ensure the fittings are properly

secured. Also make sure there are no kinks, cuts, or damage

to high pressure hose.

4. Provide a proper water supply at an adequate flow, clear

screens of debris, and confirm that the system is purged of air.

5. Confirm that the unit is on secure, level ground and the

surrounding work area is clear.

Operation

13

HOW TO START YOUR POWER WASHER

NOTE:

DO NOT run the pump without the water supply connected and

turned on. Damage to the equipment resulting from failure to

follow these instructions will void warranty.

1. Move the fuel valve lever to the ON position (Figure 24).

Figure 24 – Fuel Valve

Off

On

2. Move the choke lever to the “CLOSE” position (Figure 25).

NOTE:

For a warm engine, be sure the choke lever is in the “OPEN”

position.

Figure 25 – Choke Lever

Choke

Close

Open

3. Move the throttle control lever to the “HIGH” position, shown

on the engine as a rabbit (Figure 26).

Figure 26 – Throttle Control

High Low

4. Turn the engine switch to the "ON" position (Figure 27).

Figure 27 – The ON Position

OFF

ON

IMPORTANT: Before starting the power washer, be sure you are

wearing adequate safety goggles.

Risk of eye injury. Spray can splash back or propel

objects.

• Always wear safety goggles when using this equipment or in the

vicinity of equipment in use.

• Before starting the power washer, be sure you are wearing

adequate safety goggles.

• NEVER substitute safety glasses for safety goggles.

5. Place foot on footpad or otherwise secure the unit from

movement when pulling the recoil.

6. When starting the engine, grasp the starter grip handle (Figure

28) and pull slowly until you feel some resistance. Then pull

rapidly to start engine.

Operation

14

Starter cord kickback (rapid retraction) can result in

bodily injury. Kickback will pull hand and arm toward

engine faster than you can let go. Broken bones,

fractures, bruises, or sprains could result.

• NEVER pull the starter cord without first relieving the spray gun

pressure.

• When starting the engine, pull the cord slowly until resistance is

felt, then pull rapidly to avoid kickback.

• After each starting attempt, where engine fails to run, always point

the spray gun in a safe direction and squeeze the spray gun trigger

to release high pressure.

• Firmly grasp the spray gun with both hands when using high

pressure spray to avoid injury when the spray gun kicks back.

7. Return the starter grip handle slowly. DO NOT let the rope

“snap back” against the starter.

Figure 28 – Starting the Engine

Starter Handle

8. When the engine starts, slowly the move choke lever to the

“OPEN” position as the engine warms. If the engine falters,

move the choke lever to the “CLOSE” position, then to the

“OPEN” position (Figure 29).

Figure 29 – Choke Lever

Choke

Open

9. After each starting attempt, where the engine fails to run,

always point the gun in a safe direction, and squeeze the

spray gun trigger to release high pressure.

10. If the engine fails to start after six pulls, move the choke lever

to the “OPEN” position, and repeat steps 6 through 10.

The high pressure stream of water that this equipment

produces can cut through skin and its underlying

tissues, leading to serious injury, possible amputation

or death. Spray gun traps high water pressure, even

when engine is stopped and water is disconnected,

which can cause injury.

• DO NOT allow CHILDREN to operate the power washer or play

nearby.

• Keep the high pressure hose connected to the pump and spray gun

while the system is pressurized.

• NEVER aim the spray gun at people, animals or electrical devices.

Serious injury will result.

• DO NOT secure the spray gun in the open position.

• DO NOT leave the spray gun unattended while the machine is

running.

• NEVER use a spray gun which does not have a trigger lock or

trigger guard in place and in working order.

• Always be certain the spray gun, nozzles and accessories are

correctly attached.

 Contact with the muffler area can result in

serious burns. Exhaust heat/gases can ignite

combustibles, structures or damage the fuel

tank causing a fire.

• DO NOT touch hot parts and AVOID hot exhaust gases.

• Allow the equipment to cool before touching.

• Keep at least five (5) feet (152 cm) of clearance on all sides of the

power washer including overhead.

• 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 arrester, as defined in Section 4442, maintained in effective

working order. Other states or federal jurisdictions may have

similar laws.

• Replacement parts must be the same and installed in the same

position as the original parts.

AUTOMATIC COOL DOWN SYSTEM (THERMAL

RELIEF)

If you run the engine on your power washer for 3-5 minutes

without pressing the trigger on the spray gun, circulating water

in the pump can reach temperatures above 125°F. The system

engages to cool the pump by discharging the warm water onto

the ground.

ADJUSTABLE PRESSURE SETTING

Your pressure 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.

Operation

15

HOW TO STOP YOUR POWER WASHER

1. Release the spray gun trigger.

2. Move the throttle control lever on the engine to the “LOW”

(turtle) position (Figure 30).

Figure 30 – Throttle Position

High Low

3. Turn the engine ON/OFF switch to the "OFF" position.

4. ALWAYS point the spray gun in a safe direction, and the

squeeze spray gun trigger to release retained high water

pressure. Engage the trigger lock when not in use.

5. Turn OFF the water supply.

IMPORTANT: The spray gun traps high water pressure, even when

the engine is stopped and the water is disconnected.

The high pressure stream of water that this equipment

produces can cut through skin and its underlying

tissues, leading to serious injury, possible amputation

or death. Spray gun traps high water pressure, even

when engine is stopped and water is disconnected,

which can cause injury.

• Keep the high pressure hose connected to the pump and spray gun

while the system is pressurized.

• ALWAYS point the spray gun in a safe direction, squeeze the

spray gun trigger to release high pressure every time you stop the

engine. Engage the trigger lock when not in use.

MAINTENANCE RECOMMENDATIONS

Regular maintenance will improve the performance and extend the life

of the power washer. See any qualified dealer for service.

The power washer’s warranty does not cover items that have been

subjected to operator abuse or negligence. To receive full value

from the warranty, the operator must maintain the power washer

as instructed in this manual, including proper storage as detailed in

Winter Storage and Long Term Storage.

NOTE:

Should you have questions about replacing components on your

power washer, please call 1-888-436-3722 for assistance.

Some adjustments will need to be made periodically to properly

maintain your power washer.

All service and adjustments should be made at least once each

season. Follow the requirements in the Maintenance Schedule chart.

NOTE:

Once a year you should clean or replace the spark plug, clean

or replace the air filter, and check the spray gun and nozzle

extension assembly for wear. A new spark plug and clean air filter

assure proper fuel-air mixture and help your engine run better

and last longer.

MAINTENANCE SCHEDULE

Follow the hourly or calendar intervals, whichever occurs first.

More frequent service is required when operating in adverse

conditions.

First 5 Hours

Change engine oil

Every 8 Hours or Daily

Check/clean water inlet screen*

Check high pressure hose

Check detergent siphoning hose/filter

Check spray gun and assembly for leaks

Clean debris

Check engine oil level

Check pump oil level

Every 50 Hours or Every Season

Check/clean air cleaner filter**

Change pump oil**

Change engine oil**

Inspect muffler and spark arrester*

Every 100 Hours or Every Season

Service spark plug

* Clean if clogged. Replace if perforated or torn.

** Service more often under dirty or dusty conditions.

EMISSIONS CONTROL

Maintenance, replacement, or repair of the emissions control

devices and systems may be performed by any non-road engine

repair establishment or individual. However, to obtain ”no

charge” emissions control service, the work must be performed

by a factory authorized dealer. See the Emissions Warranty.

Maintenance

16

POWER WASHER MAINTENANCE

Clean Debris

Daily or before use, clean accumulated debris from the cleaning

system. Keep the linkage, spring and controls clean. Keep the area

around and behind the muffler free from any combustible debris.

Inspect the cooling air slots and openings on the power washer.

These openings must be kept clean and unobstructed.

Power washer parts should be kept clean to reduce the risk of

overheating and ignition of accumulated debris.

• Use a damp cloth to wipe exterior surfaces clean.

NOTE:

Improper treatment of the power washer can damage it and

shorten its life.

• DO NOT insert any objects through the cooling slots.

• Use a soft bristle brush to loosen caked on dirt, oil, etc.

• Use a vacuum cleaner to pick up loose dirt and debris.

CHECK AND CLEAN INLET SCREEN

Examine the screen on the pump’s water inlet. Clean the screen if

it is clogged, or replace the screen if damaged.

CHECK HIGH PRESSURE HOSES

The high pressure hoses can develop leaks from wear, kinking, or

abuse. Inspect the hoses each time before using them. Check for

cuts, leaks, abrasions or bulging of cover, damage or movement

of couplings. If any of these conditions exist, replace the hose

immediately.

The high pressure stream of water that this equipment

produces can cut through skin and its underlying

tissues, leading to serious injury, possible amputation

or death. Spray gun traps high water pressure, even

when engine is stopped and water is disconnected,

which can cause injury.

• NEVER repair high pressure hose. Replace it.

• Replacement hose rating MUST meet or exceed maximum pressure

rating of unit.

CHECK DETERGENT SIPHONING TUBE

Examine the filter on the detergent tube and clean it 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.

CHECK SPRAY GUN

Examine the hose connection to the spray gun and make sure it

is secure. Test the trigger by pressing the trigger, it “springs back”

into place when you release it. Replace the spray gun immediately

if it fails to "spring back".

NOZZLE MAINTENANCE

A pulsing sensation felt while squeezing the spray gun trigger

may be caused by excessive pump pressure. The principal cause

of excessive pump pressure is a nozzle clogged or restricted

with foreign materials, such as dirt, etc. To correct the problem,

immediately clean the nozzle following these instructions:

1. Shut off the engine and turn off the water supply.

2. ALWAYS point the spray gun in a safe direction, squeeze the

spray gun trigger to release retained high water pressure.

The high pressure stream of water that this equipment

produces can cut through skin and its underlying

tissues, leading to serious injury, possible amputation

or death. Spray gun traps high water pressure, even

when engine is stopped and water is disconnected,

which can cause injury.

• Keep the high pressure hose connected to the pump and spray gun

while the system is pressurized.

• ALWAYS point the spray gun in a safe direction, and squeeze the

spray gun trigger to release high pressure every time you stop the

engine. Engage the trigger lock when not in use.

3. Remove the nozzle from the end of nozzle extension.

4. Use a small paper clip to free any foreign material clogging or

restricting the nozzle (Figure 31).

5. Remove the lance from the spray gun.

Figure 31 – Free Foreign Material

6. Using a garden hose, remove additional debris by back

flushing water through the lance (Figure 32) for 30 to 60

seconds.

Figure 32 – Back Flush Lance

Maintenance

17

7. Reinstall the nozzle into the lance.

8. Reconnect the lance to the spray gun.

9. Make sure the garden hose is connected to the pump water

inlet. Check that the high pressure hose is connected to the

spray gun and pump. Turn on the water.

10. Start the engine following the instructions How to Start Your

Power Washer.

11. Test the power washer by operating it with each quick connect

nozzle.

PUMP OIL MAINTENANCE

Change pump oil every 50 hours of operation.

1. Clean area around oil drain plug (A) (Figure 33).

2. Remove oil drain plug. Drain oil completely.

3. Install oil drain plug. Do not over tighten.

4. Clean Area around oil dipstick (B).

5. Fill pump with SAE 30 non-detergent oil. Oil level must be

between the "L" and "H" mark on dipstick (Figure 34). DO NOT

OVERFILL.

6. Install oil dipstick until finger tight.

7. Clean up any spilled oil.

Figure 33 – Drain Pump Oil

A

B

Figure 34 – Dipstick

“H”

Acceptable Oil

Level Range

“L”

ENGINE MAINTENANCE

 Unintentional sparking can result in fire or

electric shock.

WHEN ADJUSTING OR MAKING REPAIRS TO YOUR POWER

WASHER:

• Disconnect the spark plug wire from the spark plug and place the

wire where it cannot contact spark plug.

WHEN TESTING FOR ENGINE SPARK:

• Use an approved spark plug tester.

• DO NOT check for spark with spark plug removed.

ENGINE OIL RECOMMENDATIONS

We recommend the use of high-quality detergent oils acceptable if

classified for service SF, SG, SH, SJ or higher. DO NOT use special

additives.

Outdoor temperatures determine the proper oil viscosity for the

engine. Use the chart to select the best viscosity for the outdoor

temperature range expected.

SAE 30*

S A E 3 0 *

10W-30**

1 0 W - 3 0 * *

5W-30

5 W - 3 0

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

** Above 80°F (27°C) the use of 10W30 may cause increased oil consumption.

Check oil level more frequently.

NOTE:

Synthetic oil meeting ILSAC GF-2, API certification mark

and API service symbol with “SJ/CF ENERGY CONSERVING”

or higher, is an acceptable oil at all temperatures. Use of

synthetic oil does not alter required oil change intervals.

NOTE:

The engine is equipped with an "Oil Alert System". This

system will automatically stop the engine before the oil level

falls below a safe limit. To avoid the inconvenience of an

unexpected shutdown, always check the engine oil level before

startup.

Maintenance

18

CHECKING OIL LEVEL

The oil level should be checked prior to each use or at least every

8 hours of operation. Keep the oil level maintained.

1. Make sure the power washer is on a level surface.

2. Clean area around oil fill cap (Figure 36).

3. Remove oil fill cap and wipe dipstick clean.

4. Insert dipstick into filler neck but do not screw it in.

5. Verify oil is at proper level on the dipstick (Figure 37).

6. Replace and tighten oil fill cap, finger tight.

ADDING ENGINE OIL

1. Make sure the power washer is on a level surface.

2. Check the oil level as described in Checking Oil Level section.

3. If level is low, fill until the oil level is between "L" and "H" on

the dipstick (Figure 37).

4. Verify oil level per the Checking Oil Level section.

5. Replace and tighten the oil fill cap, finger tight.

CHANGING ENGINE OIL

If you are using your power washer under extremely dirty or dusty

conditions, or in extremely hot weather, change the oil more often.



Avoid prolonged or repeated skin contact with used

motor oil.

• Used motor oil has been shown to cause skin cancer in certain

laboratory animals.

• Thoroughly wash exposed areas with soap and water.



KEEP OUT OF REACH OF CHILDREN.

• Don’t pollute. Conserve resources. Return used oil to collection

centers.

Change oil while the engine is still warm from running as follows:

1. Make sure the unit is 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 the area around the oil drain plug (A) (Figure 35). The

oil drain plug is located at the base of the engine, opposite the

carburetor.

Figure 35 – Oil Drain Plug

A

4. Remove the oil fill cap (Figure 36).

5. Remove the oil drain plug and drain oil completely into a

suitable container.

6. Reinstall the oil drain plug and tighten securely.

Figure 36 – Fill Engine Oil

7. Slowly pour oil into the oil fill opening until the oil level is

between "L" and "H" on the dipstick (Figure 37). DO NOT

overfill.

Figure 37 – Dipstick

Acceptable Oil

Level Range

8. Install oil dipstick until finger tight.

9. Clean up any spilled oil.

10. Properly dispose of oil in accordance with all local regulations.

SERVICE AIR CLEANER

Your engine will not run properly and may be damaged if you run it

with a dirty air cleaner. Service more often if operating under dirty

or dusty conditions.

To service the air cleaner, follow these steps:

1. Pull on air cleaner cover latch and remove cover (Figure 38).

2. Loosen wing nut.

3. Carefully remove filter assembly.

4. Remove foam filter.

5. To clean cartridge, gently tap on a flat surface.

6. Reinstall foam filter.

7. Reinstall clean or new cartridge assembly.

8. Reinstall wing nut and tighten.

9. Install cover by snapping latch closed.

Maintenance

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