1800PSI

GENERAC

The Reliable Ones

High Pressure Washer

Problems?

Questions?

Before t aking your unit back to the store,

Owner’s Manual

This pressure washer is equipped with an Automatic

Cool Down System.

See page 12 for details.

Model No. 1139–0 (1800 PSI High Pressure Washer) Manual No. B2308 Revision 0 (1/28/98)

This symbol points out important safety instructions, which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in the manual before attempting to operate this unit.

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CAUTION: Always disconnect spark plug wire and place wire where it cannot contact spark plug to prevent accidental starting when setting up, transporting, adjusting or making repairs to your high pressure washer.

• Engine exhaust gases contain DEADLY carbon monoxide gas.

This dangerous gas, if breathed in sufficient concentrations, can cause unconsciousness or even death. Operate this equipment only in the open air where adequate ventilation is available.

W AR NIIN

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

• Gasoline is highly FLAMMABLE and its vapors are EXPLOSIVE.

Do not permit smoking, open flames, sparks or heat in the vicinity while handling gasoline. Avoid spilling gasoline on a hot engine.

Allow unit to cool for 2 minutes before refueling. Comply with all laws regulating storage and handling of gasoline.

• Locate this pressure washer in areas away from combustible materials, combustible fumes or dust.

• The high pressure equipment is designed to be used with Generac authorized parts only. If you use this equipment with parts that do not comply with minimum specifications, the user assumes all risks and liabilities.

• Some chemicals or detergents may be harmful if inhaled or ingested, causing severe nausea, fainting or poisoning. The harmful elements may cause property damage or severe injury.

• Do not allow CHILDREN to operate the Pressure Washer at any time.

• Operate engine only at governed speed. Running the engine at excessive speeds increases the hazard of personal injury. Do not tamper with parts which may increase or decrease the governed speed.

• Do not wear loose clothing, jewelry or anything that may be caught in the starter or other rotating parts.

• Before starting the Pressure Washer in cold weather, check all parts of the equipment and be sure ice has not formed there.

• Units with broken or missing parts, or without protective housing or covers should NEVER be operated.

• The muffler and air cleaner must be installed and in good condition before operating the Pressure Washer. These components act as spark arrestors if the engine backfires.

• Check the 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 the Pressure Washer.

• Do not spray flammable liquids.

• Never aim the gun at people, animals or plants.

• High pressure spray can cause paint chips or other particles to become airborne and fly at high speeds.

• Never allow any part of the body to come in contact with the fluid stream. DO NOT come in contact with a fluid stream created by a leak in the high pressure hose.

• The high pressure stream of water that this equipment produces can pierce skin and its underlying tissues, leading to serious injury and possible amputation.

• Always wear eye protection when you use this equipment or when you are in the vicinity where the equipment is in use.

• Operate the pressure at no more than the PSI fluid pressure rated for your pressure washer.

• Never move the machine by pulling on the high pressure hose.

Use the handle provided on the top of the unit.

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

• Never use a spray gun which does not have a trigger lock or trigger guard in place and in working order.

• Use a respirator or mask whenever there is a chance that vapors may be inhaled. Read all instructions with mask so you are certain the mask will provide the necessary protection against inhaling harmful vapors.

• High pressure spray may damage fragile items including glass.

Do not point spray gun at glass when in the jet spray mode.

• Keep the hose connected to machine or the spray gun while the system is pressurized. Disconnecting the hose while the unit is pressurized is dangerous.

• Hold the spray gun firmly in your hand before you start the unit.

Failure to do so could result in an injury from a whipping spray gun. Do not leave the spray gun unattended while the machine is running.

• The cleaning area should have adequate slopes and drainage to reduce the possibility of a fall due to slippery surfaces.

• Keep water spray away from electric wiring or fatal electric shock may result.

• Do not secure trigger gun in the pull-back (open) position.

• Do not by-pass any safety device on this machine.

• The muffler and engine heat up during operation and remain hot immediately after shutting it down. Avoid contact with a hot muffler or engine or you could be severely burned.

• Operate and store this unit on a stable surface.

• High pressure hose can develop leaks from wear, kinking, abuse, etc. Water spraying from a leak is capable of injecting material into skin. Inspect hose each time before using it. Check all hoses for cuts, leaks, abrasions or bulging of cover, or damage or movement of couplings. If any of these conditions exist, replace hose immediately. Never repair high pressure hose. Replace it with another hose that meets minimum pressure rating of your pressure washer.

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CONGRATULATIONS on your purchase of a

GENERAC high pressure washer. It has been designed, engineered and manufactured to give you the best possible dependability and performance.

Should you experience any problem you cannot easily remedy, please contact your nearest GEN-

ERAC Authorized Service facility, or call the 1-800 number listed on the front of this manual. We have competent, well-trained technicians and the proper tools to service or repair this unit.

Please read and retain this manual. The instructions will enable you to assemble and maintain your high pressure washer properly.

Model Number

Serial Number

Date of Purchase

1139-0

The model and serial numbers will be found on a decal attached to the pressure washer. You should record both serial number and date of purchase and keep in a safe place for future reference.

CUSTOMER

RESPONSIBILITIES

• Read and observe the safety rules.

• Follow regular schedule in maintaining, caring for and using your high pressure washer.

• Follow the instructions under “Customer Responsibilities” and “Storage” sections of this Owner's

Manual.

PRODUCT SPECIFICATIONS

Pressure Washer Specifications

Outlet Pressure . . . . 1800 psi

Flow Rate . . . . . . . . . 2.0 gallons per minute (gpm)

Detergent Mix . . . . . . Use undiluted detergent approved for pressure washers

Water Supply . . . . . . Not to Exceed 140°F

Temperature

Automatic Cool . . . . Will cycle when water

Down System reaches 140°-145°F

Engine specifications

Engine Model . . . . . . Tecumseh Centura Elite LE

Rated Horsepower . . 6.0

Displacement . . . . . . 197cc

Spark Plug

Type . . . . . . . . RJ–19LM

Set Gap To: . . 0.030 inch (0.76mm)

Gasoline Capacity . . 1.5 U.S. quarts

Oil . . . . . . . . . . . . . . . SAE 30

In the State of California a spark arrestor is required by law (Section 4442 of the California Public

Resources Code). Other states may have similar laws. Federal laws apply on federal lands.

NOTE: If you equip the engine of your pressure washer with a spark arrestor muffler, the spark arrestor must be maintained in effective working order by the owner/operator.

You can order a spark arrestor through your authorized Generac service facility. See Engine Owner’s Manual for part number.

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KNOW YOUR PRESSURE WASHER

Read this owner’s manual and safety rules before operating your high pressure washer.

Compare the illustrations with your high pressure washer to familiarize yourself with the locations of various controls and adjustments. Save this manual for future reference.

Recoil Starter High Pressure Hose

Spray Gun

Goggles

Oil Fill Tube

Water Inlet

Adjustable Nozzle

Turbo Nozzle

Gas Tank

Air Cleaner

Primer Bulb

High Pressure Outlet

Pump equipped with

Automatic Cool Down

System

Broom Brush with Extension

Utility Brush

Pump — Develops high pressure.

Automatic Cool Down System — Cycles water through pump when water reaches 140°-145°F. Warm water will discharge from pump onto ground. This system prevents internal pump damage.

Recoil Starter — Used for starting the engine manually.

Spray Gun — Controls the application of water onto cleaning surface with trigger device. Includes safety latch.

Adjustable Nozzle — You must attach this to the spray gun to provide high pressure stream. Adjustable nozzle allows you to adjust force of spray and spray pattern.

Air Cleaner — Dry type filter element limits the amount of dirt and dust that gets in the engine.

High Pressure Outlet — Connection for high pressure hose.

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Water Inlet — Connection for garden hose.

High Pressure Hose — Connect one end to water pump and the other end to spray wand.

Goggles — Always use the enclosed goggles or other eye protection when running your pressure washer.

Primer Bulb — Prepares a cold engine for starting.

Broom Brush with extension — Use this brush to clean driveways, sidewalks, porches, or decks. Attaches to the spray gun with the accessories adapter or directly to the extension.

Utility Brush — Use this brush to scrub all surfaces.

Attaches to the spray gun with the accessories adapter or directly to the extension.

Turbo Nozzle — Attaches to the spray gun and allows you to clean or rinse surfaces at high pressure.

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Read entire Owner’s manual before you attempt to assemble or operate your new pressure washer.

Your new pressure washer has been assembled at the factory with exception of those parts left unassembled for shipping purposes.

REMOVE PRESSURE

WASHER FROM CARTON

• Remove accessories insert.

• Remove parts box included with pressure washer.

• Slice two corners at guide handle end of carton from top to bottom so the panel can be folded down flat, then remove all packing material.

• Roll pressure washer out of carton.

CARTON CONTENTS

Items in the carton include:

• Main Unit

• Accessories Insert

• Turbo Wand

• Utility Brush

• Broom Brush

• Broom Handle

• Brush Extension

• Brush Adapter

• Parts Box (which includes the following):

• Wireform

• Goggles

• Nozzle Cleaning Kit

• Owner’s Manual

• Engine Manual

• Spray Gun

• Nozzle Extension

• High Pressure Hose

• Handle

• Parts Bag (which includes the following):

• 2 carriage bolts

• 2 knobs

If any of the above parts are missing or damaged, call the pressure washer helpline at 1–800–270–1408.

PREPARING THE PRESSURE

WASHER FOR USE

If you have any problems with the assembly of your pressure washer or if parts are missing or damaged, call the Pressure Washer Helpline at 1-800-270-1408.

To prepare your pressure washer for operation you will need to perform these tasks:

• Attach the handle and attach the wire form that holds high pressure hose and spray gun.

• Connect high pressure hose to the spray gun and the pump and connect water supply to the pump.

• Add oil to engine crankcase.

• Add fuel to fuel tank.

Attach the Handle

• Place the top of the handle onto the bottom of the handle already connected to the main unit making sure the holes in the top align with the holes on the bottom (Figure 1).

Figure 1 — Attach the top of the handle to the bottom of the handle.

Make sure the holes on the top of the handle are aligned with the holes in the bottom of the handle

• Insert the carriage bolt through the right hole (looking at the front of the pressure washer) and attach a plastic knob. Tighten the knob by hand (Figure 2).

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• Insert the carriage hook through the left hole (looking at the front of the pressure washer). Pull the recoil handle out slowly. Place the recoil string through the hook and attach the plastic knob.

Tighten the knob by hand (Figure 2).

Figure 2 — Insert the carriage bolt and hook and attach the knobs.

Although multi-viscosity oils (5W30, 10W30, etc.) improve starting in cold weather, these multi-viscosity oils will result in increased oil consumption when used above 32°F. Check your engine oil level more frequently to avoid possible damage from running low on oil.

• Place pressure washer on a level surface.

• Clean area around oil fill and remove oil dipstick

(Figure 4).

Figure 4 — Add oil to engine crankcase. Do not attempt to start engine without adding oil.

Oil Fill Cap

• Insert the wire support with the longer arm positioned on the left. From this view the hook should resemble a

“J” (Figure 3).

Figure 3 — Fit wire form on handle.

• Wipe dipstick clean. Pour oil into oil fill opening until oil reaches FULL mark on the dipstick. Stop occasionally to check oil level. DO NOT OVERFILL.

• Install oil dipstick, hand tighten securely.

Note: Check Oil Often During Engine Break–in.

Add Gasoline

Add Engine Oil

IMPORTANT: Any attempt to crank or start the engine before it has been properly serviced with the recommended oil may result in an engine failure.

Note: When adding oil to the engine crankcase, use only high quality detergent oil rated with API service classification SF,SG, SH or SH/CD rated SAE 30 weight. Select the oil’s viscosity grade according to your expected operating temperature. Do Not Use

SAE 10W40 Oil.

colder

5W30

32°F

DANGER! Never fill fuel tank indoors.

Never fill fuel tank when engine is running or hot. Do not smoke when filling fuel tank.

WARNING! Never fill fuel tank completely full. Fill tank to about 1/2" below the bottom of the filler neck to provide space for fuel expansion. Wipe away any fuel spillage from engine and equipment before starting.

warmer

SAE 30

The manufacturer recommends fresh, clean unleaded regular automotive gasoline.

• Use clean fuel and store in approved, clean covered containers. Use clean fill funnels. Never use

“stale” gasoline left over from last season or gasoline stored for long periods.

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• Clean area around fuel fill cap, remove cap

(Figure 5).

Figure 5 — Add gasoline to fuel tank.

Figure 7 — Connect high pressure hose to pump.

Gas Cap

• Add “UNLEADED” regular gasoline, slowly, to fuel tank. Use a funnel to prevent spillage.

• Install fuel cap and wipe up any spilled gasoline.

Connect Hose and Water

Supply to Pump

IMPORTANT: You must assemble wand and attach all hoses before you start engine. Starting engine without all hoses connected and water supplied will damage pump.

• Uncoil high pressure hose and attach one end of hose to the base of the spray gun. (Figure 6).

Tighten by hand.

Figure 6 — Connect high pressure hose to spray gun.

• Before you connect your garden hose to the water inlet, inspect the Inlet Screen (Figure 8). Clean the screen if it contains debris or have it replaced if damaged. DO NOT RUN THE PRESSURE

WASHER IF THE SCREEN IS DAMAGED.

• Connect garden hose to water inlet. Tighten by hand (Figure 8).

Figure 8 — Connect the garden hose to water inlet and turn ON the water.

Inspect inlet screen, do not use if damaged, clean if dirty

• Turn ON the water.

• Squeeze trigger on gun to purge pump system of air and impurities.

CAUTION: Before starting the pressure washer, be sure you are wearing adequate eye protection.

Connect High Pressure

Hose Here

• Attach other end of high pressure hose to the high pressure fitting on the pump (Figure 7). Tighten by hand.

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• Attach nozzle extension to spray gun. Tighten By

Hand (Figure 9).

Figure 9 — Connect nozzle extension to spray gun.

CHECKLIST BEFORE

STARTING ENGINE

If you have reached this point, look back over the assembly to see if you have performed all of the following.

• Check for properly tightened hose connections

(high pressure and water supply) and for tight connections and that there are no kinks, cuts, or damage to the high pressure hose.

• Check that oil has been added to proper level in engine crankcase before trying to start the pressure washer.

• Add proper gasoline to fuel tank.

• Provide proper water supply (not to exceed 140°F).

• Be sure to read “Safety Rules” and “Operation sections before using the pressure washer.

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HOW TO USE YOUR

PRESSURE WASHER

If you have any problems operating your pressure washer, please call the pressure washer helpline at

1-800-270-1408.

You have assembled your high pressure washer and have prepared the engine for starting. You are now ready to clean your car, boat or the outside of a building or whatever you plan to clean.

How to Start Your Engine

The best way to start your engine-powered pressure washer for the first time is to follow these instructions step-by-step. This starting information also applies whenever you start the engine after you have let the pressure washer sit idle for at least a day.

• Place the pressure washer in an area close enough to an outside water source that can flow at a rate of

2 gallons per minute.

• Check that the high pressure hose is tightly connected to the spray gun and to the pump. See

ASSEMBLY section for illustrations.

• Connect the garden hose to water inlet on the pressure washer pump and turn on the water.

IMPORTANT: Do not run pump without the water supply connected and turned on. You must follow this caution or the pump will be damaged.

• Move the Throttle Control Lever to the ‘Fast’ position

Note: For a warm engine, be sure the Throttle Control

Lever is in the ‘Fast’ position.

• Squeeze the trigger on the spray gun to relieve the air pressure caused by turning ON the water.

Water will spew out the gun in a thin stream. This will make it easier to pull start the engine. Release the trigger.

• Apply the safety latch to the spray gun trigger

(Figure 10).

To start the engine for the first time:

• Make sure the Engine Throttle Lever is in the

“Fast” position.

• Push primer bulb firmly 5 times.

• Grasp rope handle and pull slowly until you feel some resistance. Then pull cord rapidly to overcome compression, prevent kickback and start the engine. Let rope return to starter slowly.

Figure 10 — Squeeze trigger to relieve water pressure, release trigger and turn the safety latch ON.

Safety Latch ON

Note: Always keep the Throttle Control Lever in the

‘Fast’ position when operating the pressure washer.

To start engine thereafter:

• Make sure the engine throttle control is in the

“Fast” position.

• Press the primer bulb 3 times. For a warm engine, do not prime.

• Grasp rope handle and pull slowly until you feel some resistance. Then pull cord rapidly to overcome compression, prevent kickback and start the engine. Let rope return to starter slowly.

• If engine fails to start repeat above steps.

How to Stop Your Pressure

Washer

• Move the Throttle Control Lever to the ‘Slow’ position.

• Wait for the engine to idle down.

• Move the Throttle Control Lever to the ‘Stop’ position.

• Simply shutting off the engine will not release pressure in the system. Squeeze trigger on the spray gun to relieve pressure in the hose.

Note: A small amount of water will squirt out when you release the pressure.

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How to Use the Adjustable

Nozzle

You now should know how to START your pressure washer and how to STOP it. The information in this section will tell you how to adjust the spray pattern and apply detergent or any other cleaning chemicals.

DANGER! Never adjust spray pattern when spraying. Never put hands in front of nozzle to adjust spray pattern.

On the end of your spray gun is a nozzle that you can slide forward and backward and that you can also twist from side to side. With the adjustable nozzle you can adjust the spray pattern to be either high pressure or low pressure. You can also adjust the spray so it is concentrated in a stream pattern or expanded into a fan pattern.

• Slide the nozzle forward when you wish to adjust the spray to low pressure mode (Figure 11). Slide the nozzle backward to achieve high pressure.

• Point the nozzle toward the ground and press the trigger to test the pattern (Figure 12).

• Twisting the nozzle adjusts the spray pattern from a narrow pattern to a fan pattern.

• For most effective cleaning, keep spray nozzle between 8 to 24 inches away from cleaning surface.

Figure 11 — Using the adjustable nozzle.

• If you get spray nozzle too close, especially using high pressure mode, you may damage the cleaning surface.

• Do not get closer than 6 inches when cleaning automobile tires.

Figure 12 — Test the spray pattern.

Slide nozzle backward for high pressure mode.

Slide nozzle forward for low pressure mode and detergent application.

Twist nozzle counterclockwise for fan spray pattern.

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Twist nozzle clockwise for narrow spray pattern.

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Applying Detergent with the

Adjustable Nozzle

IMPORTANT: Use soaps designed specifically for

pressure washers. Household detergents could damage the pump.

IMPORTANT: You must attach all hoses before you start the engine. Starting the engine without all the hoses connected and without the water turned ON will damage the pump.

To apply detergent follow these steps:

• Review the use of adjustable nozzles on Page 10.

• Prepare the detergent solution as required by the job.

• Hang the detergent solution on hook of the wireform on the handle as shown in Figure 13.

Figure 13 — Insert the small filter into container of cleaning solution.

• Place small filter of the clear, detergent siphoning tube into the detergent container.

• Slide the adjustable nozzle forward to low pressure mode. Detergent cannot be applied with nozzle in high pressure position.

IMPORTANT: Detergent cannot be applied without the water source turned on.

• Make sure garden hose is connected to water inlet.

Check that high pressure hose is connected to spray gun and pump (see ASSEMBLY), and start the engine.

• Apply detergent to a dry surface, starting from the bottom and working up.

• Allow the detergent to soak in between 3-5 minutes before washing and rinsing.

• For washing, start at lower portion of area to be washed and work upward, using long, even, overlapping strokes.

CAUTION: Keep the detergent siphoning tube from coming in contact with the hot muffler. This will damage the plastic tube.

When inserting the filter into a cleaning agent bottle, route the tube so as to keep it from inadvertently contacting the hot muffler.

Pressure Washer Rinsing

WARNING: Be extremely careful if you must use the pressure washer from a ladder, scaffolding or any other relatively unstable location. Pressure in a running washer builds as you climb. When you press the trigger, the recoil from the initial spray could force you to fall. The high pressure spray could also force you to fall if you are too close to the cleaning surface.

For Rinsing:

• Slide nozzle forward to high pressure and wait for detergent to clear.

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

• Apply a high pressure spray to an small area and then check the surface for damage. If no damage is found, you can assume it is okay to continue cleaning.

• Start at top of area to be rinsed, working down with same overlapping strokes as you used for cleaning.

Note: You can also stop detergent from flowing by simply removing detergent siphoning tube from bottle.

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How to Use the Brushes

Your pressure washer comes equipped with two brushes including a broom brush and utility brush.

Broom Brush

The broom brush is a large soft bristle brush that’s to clean floors, garages and driveways. You can apply detergent or rinse with this brush.

To attach the broom brush to the gun:

• Remove any accessories from the gun.

• Attach the broom handle to the broom brush.

• Attach extension to the broom handle.

• Attach accessory adapter to the extension.

• Attach the assembled brush to the gun.

Utility Brush

The utility brush is a soft bristle brush that’s great for applying cleaning solutions and loosening dirt. You can use this brush to rinse or apply detergent.

To attach utility brush to the spray gun:

• Remove any accessories attached to spray gun.

• Attach utility brush to the extension (optional).

• Attach the accessory adapter to the utility brush or extension.

• Attach assembled brush to the spray gun.

How to Use the Turbo Nozzle

The turbo nozzle spins the narrow high pressure stream in a circular pattern to increase the area to be cleaned.

Important: The turbo nozzle is very powerful. Make sure the area to be cleaned or rinsed will not be damremove paint and cut holes at close range.

To attach the turbo nozzle to the spray gun:

• Remove any accessories attached to the spray gun.

• Attach the turbo nozzle to the spray gun.

Automatic Cool Down System

(Thermal Relief)

If you run the engine on your pressure washer for 3-5 minutes without pressing the trigger on the spray gun, circulating water in the pump can reach a temperature between 140–145°F. When the water reaches this temperature, the automatic cool down system engages and cools the pump by discharging the

warm water onto the ground. This system prevents internal damage to the pump.

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GENERAL MAINTENANCE

RECOMMENDATIONS

The warranty of the high pressure washer does not cover items that have been subjected to operator abuse or negligence. To receive full value from the warranty, operator must maintain high pressure washer as instructed in this manual.

• Some adjustments will need to be made periodically to properly maintain your high pressure washer.

• All adjustments in the Service and Adjustments section of this manual should be made at least once each season.

• Once a year you should clean or replace the spark plug and clean or replace the air filter and check the gun and wand 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.

Check Detergent Siphoning Tube

Examine the filter on the detergent hose and clean if clogged. Tube should fit tightly on barbed fitting.

Examine tube for leaks or tears. Replace the filter or tube if either is damaged.

Check Gun and Wand

Examine hose connection to gun and make sure it is secure. Test trigger by pressing it and making sure it springs back into place when you release it. Put safety latch in ON position and test trigger. You should not be able to press trigger.

BEFORE EACH USE

• Check engine oil level.

• Check water inlet screen for damage.

• Check high pressure hose for leaks.

• Check detergent siphoning tube and filter for damage.

• Check gun and wand assembly for leaks.

PRESSURE WASHER

MAINTENANCE

Purge Pump of Air and

Contaminants

To remove the air from the pump, follow these steps:

• Set up the pressure washer as described in the

ASSEMBLY section and connect the water supply.

• Remove the wand extension from the gun.

• Pull the trigger on the gun and hold.

To remove the contaminants from the pump, follow these steps:

• Set up the pressure washer as described in the

ASSEMBLY section, and connect the water supply.

• Remove the nozzle attachment from the gun.

• Start the engine according to instructions in OPER-

ATION section.

• Squeeze the trigger on the gun and hold.

• When the water supply is steady and constant, engage the safety latch and refasten the nozzle attachment.

Check and Clean Inlet Screen

Examine screen on the water inlet. Clean if the screen is clogged or replace if screen is damaged.

Check High Pressure Hose

High pressure hose can develop leaks from wear, kinking, or abuse. Inspect hose each time before using it. Check for cuts, leaks, abrasions or bulging of cover, damage or movement of couplings. If any of these conditions exist, replace hose immediately.

DANGER: Water spraying from a leak is capable of injecting material into skin.

Inspect hose each time before using it.

Never repair a high pressure hose.

Replace it with another hose that meets the maximum pressure rating of your pressure washer.

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Cleaning Detergent Siphoning

Tube

If you have used the detergent siphoning tube you must flush it with clean water before stopping the engine.

• Place detergent siphoning tube in a bucket full of clean water.

• Flush for five minutes.

• Shut off the engine.

Important: Simply shutting OFF engine will not release pressure in the system. When engine has shut down, squeeze the trigger on the gun to relieve the pressure in the hose.

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Nozzle Maintenance

If the adjustable nozzle becomes restricted or clogged with foreign materials, such as dirt, excessive pump pressure may develop. If this nozzle becomes partially clogged, it can cause a pulsing sensation during use. This generally is not a pump related problem, but rather a clogged or partially restricted adjustable nozzle.

If the adjustable nozzle becomes clogged or partially restricted, immediately clean the nozzle with the kit included with your pressure washer by following these instructions:

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

• Separate the nozzle extension from the gun.

• Adjust the nozzle extension to the stream position.

• Remove nozzle from the end of the nozzle extension

(Figure 17) using a 2mm or 5/64 allen wrench (like the one included in the kit).

• Use the wire included in the kit (Figure 17) or a small paper clip to free the foreign materials clogging or restricting the nozzle.

Figure 17 — Removing and cleaning nozzle.

• Remove additional debris by back flushing water supply through nozzle extension (Figure 18). Back flush between 30 to 60 seconds. Turn nozzle extension to stream spray and move nozzle from low to high while flushing.

Figure 18 — Backflushing the nozzle.

• Reinstall nozzle into the nozzle extension. DO NOT over tighten.

• Reconnect the nozzle extension to the gun.

• Reconnect the water supply, turn on the water, and start the engine.

• Test the pressure washer by operating with nozzle in the high and in the low position.

ENGINE MAINTENANCE

See the engine owner’s manual for instructions on how to properly maintain the engine.

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SERVICE AND

ADJUSTMENTS

See the engine Owner’s Manual for instructions on how to properly service and adjust the engine.

PREPARING THE UNIT FOR

STORAGE

Water should not remain in the unit for long periods of time. Sediments of minerals can deposit on pump parts and “freeze” pump action. If you do not plan to use the pressure washer for more than 30 days, follow this procedure:

1.Flush detergent siphoning tube by placing the filter into a pail of clean water while running pressure washer with nozzle in low pressure mode. Flush for five minutes.

2.Shut off the engine and let it cool, then remove all hoses.

3.Place throttle lever in STOP position.

CAUTION: Be sure lever is in “STOP” position before you continue. If you start engine without proper water supply connected, you can damage pump.

4.Empty the pump of all pumped liquids by pulling recoil handle about 6 times. This should remove most of the liquid in the pump.

NOTE: To protect unit from freezing temperatures, draw RV antifeeze (no alcohol) into pump by pouring windshield washer fluid into a 3-foot section of garden hose connected to inlet adapter and pulling recoil handle twice.

5.Store in a clean, dry area.

STORING THE ENGINE

See the engine Owner’s manual for instructions on how to properly store the engine.

H i g h P r e s s u r e W a s h e r

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GENER

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Generac 1800PSI High Pressure Washer

NOTES

H i g h P r e s s u r e W a s h e r

16

GENER

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Generac 1800PSI High Pressure Washer

NOTES

H i g h P r e s s u r e W a s h e r

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Generac 1800PSI High Pressure Washer

GENER

Problem

Pump has following problems: failure to produce pressure, erratic pressure, chattering, loss of pressure, low water volume.

TROUBLESHOOTING POINTS

Cause

1. Nozzle in low pressure mode.

2. Water inlet is blocked.

3. Inadequate water supply.

4. Inlet hose is kinked or leaking.

5. Clogged inlet hose strainer.

6. Water supply is over 140°F.

7. Outlet hose is blocked or leaks.

8. Gun leaks.

9. Nozzle is obstructed.

10. Pump is faulty.

Correction

1. Pull nozzle backward for high pressure mode.

2. Clear inlet

3. Provide adequate water flow.

4. Straighten inlet hose, patch leak.

5. Check and clean inlet hose strainer.

6. Provide cooler water supply.

7. Clear blocks in outlet hose.

8. Replace gun.

9. Clean nozzle.

10. Contact Generac service facility.

Detergent fails to mix with spray.

1. Detergent siphoning tube is not submerged.

2. Chemical filter is clogged.

3. Nozzle is in high pressure mode.

1. Insert detergent siphoning tube into detergent.

2. Clean or replace filter/detergent siphoning tube.

3. Push nozzle forward for low pressure mode.

Engine runs good at no-load but “bogs” when load is added.

Engine speed is too slow.

Move throttle control to FAST .

position. If engine still “bogs down” contact Generac service facility.

H i g h P r e s s u r e W a s h e r

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Generac 1800PSI High Pressure Washer

GENER

PROBLEM

Engine will not start; or starts and runs rough.

Engine shuts down during operation.

TROUBLESHOOTING POINTS

CAUSE CORRECTION

1. Low oil level.

2. Dirty air cleaner.

3. Out of gasoline.

4. Stale gasoline.

5. Spark plug wire not connected to spark plug.

6. Bad spark plug.

7. Water in gasoline.

8. Overchoking.

9. Excessively rich fuel mixture.

10. Intake valve stuck open or closed.

11. Engine has lost compression.

1. Fill crankcase to proper level.

2. Clean or replace air cleaner.

3. Fill fuel tank.

4. Drain gas tank; fill with fresh fuel.

5. Connect wire to spark plug.

6. Replace spark plug.

7. Drain gas tank; fill with fresh fuel.

8. Open choke fully and crank engine.

9. Contact Generac service facility.

10. Contact Generac service facility.

11. Contact Generac service facility.

1. Out of gasoline.

2. Low oil level.

1. Fill fuel tank.

2. Fill crankcase to proper level.

Engine lacks power.

Engine “hunts” or falters.

Dirty air filter.

Choke is opened too soon.

Replace air filter.

Move choke to halfway position until engine runs smoothly.

H i g h P r e s s u r e W a s h e r

19

GENER

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Generac 1800PSI High Pressure Washer

EXPLODED VIEW — PRESSURE WASHER

Drawing No. B2307

H i g h P r e s s u r e W a s h e r

A

C

Generac 1800PSI High Pressure Washer

ITEM

30

31

32

33

26

27

28

29

22

23

24

25

18

19

20

21

14

15

16

17

9

11

12

13

7

8

5

6

3

4

1

2

38

39

40

41

34

35

36

37

42

43

44

GENER

REPAIR PARTS — PRESSURE WASHER

PART NO.

21424

88185

27007

B1214

B1735

B1880

A1040B

A1041

B1469

98300

88934

88935

B1262A

97100

88056

79552

BB2058

B1932

20566

48031G

B2192

B1730

50190

B2309

B1210

30809

B2335

B1631B

B1760

75402

52858

A1408

BB1945

97178

95597

95598

31669

B1969

97566

B1867E

B1861

B1460

B1953

DESCRIPTION.

BASE, VSPW

DECAL, Instructions

DECAL, 1-800 Number

CLAMP, Hose 3/16”

DECAL, “GENERAC”

BOLT, Eye

WASHER, M8 Flat

DECAL, Logo 1800 PSI

CARD, Starting Instructions

GROMMET, Chem Hose

WAND, Turbo

BILLBOARD, Plastic

TIRE, 3.5” X 10” Black Mag

PUSHNUT, 1/2”

NUT, M8 Locking Flange

CAP, Garden Hose Inlet

CONNECTOR, Garden Hose

BRUSH, Utility

MOUNT, Rubber Foot

HHCS, M8 X 1.25 X 45 Long

STUD, Double Ended

NUT, with Washer

HOSE, Chemical

FILTER, Chemical Hose

ENGINE, TECUMSEH 6 HP ELITE LE

SEAL, Engine Donut

BRUSH, Extension

ADAPTER, Brush Extension

PUMP, GPW-EG Assembly

CAP, High Pressure

DECAL, Data

OVERLAMINATE

HANDLE, VS PW

KNOB, PW Handle

BRUSH, Broom

HANDLE, Broom

BOLT, 1/4”-20 X 1.75” Carriage

HOSE, 1/4” X 25’

HANG TAG, Nozzle

WAND, Adjustable Nozzle

GUN, High Pressure

CAP, Vinyl Black

WIREFORM

Drawing No. B2307

QTY.

1

1

1

1

1

1

1

1

1

1

3

3

2

2

1

1

2

1

2

2

1

1

1

1

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

3

1

H i g h P r e s s u r e W a s h e r

21

GENER

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Generac 1800PSI High Pressure Washer

EXPLODED VIEW — PUMP

Drawing No. B2023

H i g h P r e s s u r e W a s h e r

22

A

C Generac 1800PSI High Pressure Washer

ITEM

30

31

32

33

26

27

28

29

21

23

24

25

17

18

19

20

13

14

15

16

9

10

11

12

7

8

5

6

3

4

1

2

39

40

41

42

34

35

36

37

43

44

45

GENER

PART NO.

97835

97837

97838

97839

97840

97841

97842

97843

B1253

97845

A2731

97847

A2730

21424

A1575

96137

96795

21640

21641

21642

93680

97828

93667

98304

98227

20110

97830

97831

97832

A1111B

57018

21429

95379

95380

20631

97934

93873

40946

97851

97962

21783

20876

B1077

REPAIR PARTS — PUMP

DESCRIPTION

SLEEVE, RUBBER GROMMET SPACER

ASSY., CAGE NEEDLE BEARING 45 X 65

WASHER, BRG. DIA. 45 x 65 x 1T (

WASHER, BRG. DIA. 36 x 65 x 6T [SPECIAL]

SEAL, OIL PISTON DIA. 15

SPRING, PISTON RETURN – EG

SEAL, U-CLIP

CAM, AXIAL 5.6mm w/INSERT

ADAPTER, ENGINE

HOUSING, PISTON AND UNLOADER

RETAINER, PISTON SPRING

SPACER, PILOT

PISTON, DIA. 15-65 LONG

HEAD, PUMP

BEARING, BALL RADIAL

BUSHING, RUBBER

“O” RING, HOUSING SEAL

“O” RING, HI-PRESSURE TRANSFER

ASS’Y, CHECK VALVE – INLET

ASS’Y, CHECK VALVE – OUTLET

“O” RING, INLET PORT CAP

CAP, INLET PORT

SEAT, UNLOADER

“O” RING, UNLOADER VENTURI

PISTON, UNLOADER

SEAL, UNLOADER “PARBACK”

SPRING, UNLOADER

“O” RING, UNLOADER CAP

CAP, UNLOADER

GARDEN HOSE CONNECTOR

BARB, HOSE WITH NYLON INSERT

PLUG, 1/8” NPT [WITH SEALANT]

BALL, DIA. 5.5 CHEMICAL INJECTOR

SPRING, CHEMICAL INJECTOR

VENTURI, CHEMICAL INJECTOR

“O” RING, CHECK VALVE – INLET

LOCK WASHER, M6 RIBBED

SOCKET HEAD CAPSCREW M6-1.0 x 35mm

“O” RING PISTON HOUSING

SOCKET HEAD CAPSCREW, M6-1.0 x 25mm

THERMAL RELIEF

.5 OZ. SEALANT, THREAD LOCKTITE 545

“O” RING VENTURI

Drawing No. B2023

QTY

1

1

1

1

1

1

1

2

1

1

3

3

1

1

3

3

3

1

1

6

1

1

3

3

3

3

3

1

3

1

1

1

7

4

3

3

1

1

1

3

1

O

1

H i g h P r e s s u r e W a s h e r

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Generac 1800PSI High Pressure Washer

GENERAC warrants to the original retail purchaser, the pressure washer manufactured by GENERAC to be free from defects in material and workmanship for the period(s) set forth below from the date of original purchase. This warranty is not transferable. The term “original purchaser” means the person for whom the pressure washer is originally purchased.

Warranty Schedules

Electric Power Washer 1 year (does not apply to commercial or rental operations)

CONSUMER*

Generac GN-Series Engine-driven Engine: 2 years

Power Washer (2nd year parts only)

Pump: 1 year

All Other Engine-driven

Power Washers

Engine: Warranted solely by

Engine Manufacturer

COMMERCIAL*

1 year

90 days

Warranted solely by

Engine Manufacturer

Pump: 1 year 90 days

* NOTE: For the purpose of this warranty “consumer use” means personal residential household use by original purchaser. “Commercial Use” means all other uses, including rental, construction, commercial and income producing purposes. Once a pressure washer has experienced commercial use, it shall thereafter be considered a commercial use pressure washer for the purposes of this warranty.

During said warranty period, GENERAC will, at its option, repair or replace any part which, upon examination by GENERAC or GENERAC Authorized Dealers, is found to be defective under normal use and service**.

All transportation costs under warranty, including return to the factory if necessary, are to be borne by the purchaser and prepaid by the purchaser.

** NORMAL WEAR: As with all mechanical devices, the GN-Series engines need periodic parts service and replacement to perform well. This warranty will not cover repair when normal use has exhausted the life of a part or an engine.

THIS WARRANTY DOES NOT INCLUDE: Used products and demonstration equipment. Parts such as

GUNS, HOSES, WANDS, NOZZLES or other wear items such as quick couplers, oil, gauges, belts, O-rings, filters, pump packing, etc. Pumps which have been run without water supplied. Damage or malfunctions resulting from: accidents, abuse, modifications, alterations, or improper servicing. Freezing or chemical deterioration. Normal maintenance such as adjustments, fuel system cleaning and obstruction (due to chemical, dirt, carbon or lime, etc.).

THIS WARRANTY IS IN PLACE OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, SPECIFICALLY,

GENERAC MAKES NO OTHER WARRANTIES AS TO MERCHANTABILITY OR FITNESS FOR A PARTICU-

LAR PURPOSE. The duration of any implied warranties which cannot be disclaimed is limited to the time period as specified in the express warranty. LIABILITY FOR CONSEQUENTIAL, INCIDENTAL, OR SPECIAL

DAMAGES UNDER ANY AND ALL WARRANTIES IS EXCLUDED, EVEN IF SUCH DAMAGES ARE A

DIRECT RESULT OF GENERAC’s NEGLIGENCE. Some states do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights and you may also have other rights, which vary from state to state.

For service, see your nearest GENERAC authorized warranty service facility or call 1-800-333-1322. Warranty service can be performed only by a GENERAC authorized service facility. This warranty will not apply to service at any other facility. At the time of requesting warranty service, evidence of original purchase date must be presented.

GENERAC CORPORATION