Briggs & Stratton 1900PSI User Manual

Owner’s Manual / Manual del Propietario / Manuel de l'Utilisateur

Questions? Help is just a moment away!

Preguntas? La ayuda es justa un momento lejos!

Vous avez des questions? Vous n'avez pas besoin d'aller loin pour trouver de l'aide!

Call: Pressure Washer Helpline / Llame: Línea Directa del Lavador a Presión /

Appelez: Ligne d'Assistance pour les Pulvérisateur - 1-800-270-1408 M-F 8-5 CT

Model No. 1694-1,2 (1900 PSI Pressure Washer) Manual No. 192464GS Revision 4 (12/18/2003)

1900PSI

BRIGGS & STRATTON POWER PRODUCTS GROUP, LLC

JEFFERSON,WISCONSIN, U.S.A.

Generac Portable Products 1900 PSI Pressure Washer

TABLE OF CONTENTS

Safety Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Know Your Pressure Washer. . . . . . . . . . . . . . . . . . . . . . . . 5

Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10

Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-17

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

EQUIPMENT

DESCRIPTION

Read this manual carefully and become familiar with your pressure washer. Know its applications, its limitations and any hazards involved.

Every effort has been made to ensure that information in this manual is accurate and current. However, we reserve the right to change, alter or otherwise improve the product and this document at any time without prior notice.

SAFETY RULES

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

The safety alert symbol ( ) is used with a signal word (DANGER, CAUTION,WARNING), a pictorial and/or a safety message to alert you to hazards. DANGER indicates a hazard which, if not avoided, will result in death or serious injury. WARNING indicates a hazard which, if not avoided, could result in death or serious injury. CAUTION indicates a hazard which, if not avoided, might result in minor or moderate injury. CAUTION, when used without the alert symbol, indicates a situation that could result in equipment damage. Follow safety messages to avoid or reduce the risk of injury or death.

Hazard Symbols and Meanings

In the State of California a spark arrester is required by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. If you equip the muffler with a spark arrester, it must be maintained in effective working order.

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

WARNING

Fire

Explosion

Toxic Fumes

Hot Surface

Moving Parts

Electrical Shock

Slippery Surface

Fall

Kickback

Flying Objects

Fluid Injection

Generac Portable Products 1900 PSI Pressure Washer

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

Spray contact with electrical wiring can result in electrocution.

WARNING

• Operate pressure washer ONLY outdoors.

• 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.

Running engine gives off carbon monoxide, an odorless, colorless, poison gas.

Some chemicals or detergents may be harmful if inhaled or ingested, causing severe nausea, fainting or poisoning.

Breathing carbon monoxide will cause nausea, fainting or death.

DANGER

• Keep spray nozzle between 8 to 24 inches away from cleaning surface.

• Operate this unit on a stable surface.

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

• Be extremely careful if you must use the pressure washer from a ladder, scaffolding or any other relatively unstable location.

• Firmly grasp spray gun with both hands when using high pressure spray to avoid injury if gun kicks back.

Use of pressure washer can create puddles and slippery surfaces.

High pressure spray could cause you to fall if you are too close to the cleaning surface.

WARNING

WHEN ADDING FUEL

• Turn pressure washer OFF and let it cool at least 2 minutes before removing gas cap.

• Fill fuel tank outdoors.

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

• Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition sources.

• DO NOT light a cigarette or smoke.

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.

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.

Fuel and its vapors are extremely flammable and explosive.

Fire or explosion can cause severe burns or death.

WARNING

• NEVER aim spray gun at people, animals or plants.

• DO NOT allow CHILDREN to operate pressure washer.

• NEVER repair high pressure hose. Replace it.

• Keep high pressure hose connected to pump and spray gun while system is pressurized.

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

WARNING

Generac Portable Products 1900 PSI Pressure Washer

• DO NOT tamper with governed speed.

• DO NOT operate pressure washer above rated pressure.

Excessively high or low operating speeds increase risk of injury and damage to pressure washer.

CAUTION

WHEN ADJUSTING OR MAKING REPAIRS TO YOUR PRESSURE WASHER

• Disconnect spark plug wire from spark plug and place wire where it cannot contact spark plug.

Unintentional sparking can result in fire or electric shock.

WARNING

• DO NOT point spray gun at glass when in jet spray mode.

• NEVER aim spray gun at plants.

High pressure spray may damage fragile items including glass.

CAUTION

• 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.

Starter and other rotating parts can entangle hands, hair, clothing,or accessories.

WARNING

• Always wear eye protection when using this equipment or in vicinity of where equipment is in use.

High pressure spray can cause paint chips or other particles to become airborne.

WARNING

• DO NOT secure spray gun in open position.

• DO NOT 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.

A pressure washer produces a high pressure spray which increases risk of injury and damage to unit.

CAUTION

• If you have questions about intended use, ask dealer or contact Briggs & Stratton Power Products.

• NEVER operate units with broken or missing parts, or without protective housing or covers.

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

• Before starting pressure washer in cold weather, check all parts of the equipment to be sure ice has not formed there.

• NEVER move machine by pulling on high pressure hose. 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 pressure washer.

• This equipment is designed to be used with Briggs & Stratton Power Products authorized parts ONLY. If equipment is used with parts that DO NOT comply with minimum specifications, user assumes all risks and liabilities.

Improper treatment of pressure washer can damage it and shorten its life.

CAUTION

• DO NOT touch hot surfaces.

• Stay clear of exhaust gases.

• Allow equipment to cool before touching.

Running engines produce heat and hot exhaust gases.Temperature of muffler and nearby areas can reach or exceed 150°F (65°C).

Fire or severe burns can occur.

WARNING

Generac Portable Products 1900 PSI Pressure Washer

KNOW YOUR PRESSURE WASHER

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

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

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

Automatic Cool Down System — Cycles water through pump when water reaches 125°-155°F. Warm

water will discharge from pump onto ground.This system prevents internal pump damage.

Chemical Injection Siphon/Filter — Use to siphon

detergent or other pressure washer chemicals into the low pressure stream.

Fuel Tank — Fill tank with regular unleaded gasoline. High Pressure Outlet — Connection for high pressure

hose.

Primer Bulb — Prepares a cold engine for starting. Pump — Develops high water pressure. Recoil Starter — Used for starting the engine manually. Water Inlet — Connection for garden hose.

Air Cleaner

Primer Bulb

Fuel Tank

Water Inlet

Pump equipped with

Automatic Cool Down

System

Recoil Starter

High Pressure Outlet

Chemical Injection Siphon/Filter

Generac Portable Products 1900 PSI Pressure Washer

ASSEMBLY

IMPORTANT: Read entire owner’s manual before you

attempt to assemble or operate your new pressure washer.

Remove Pressure Washer From

Carton

• Remove the parts bag, accessories, and inserts included with pressure washer.

• Slice two corners at the end of carton from top to bottom so the panel can be folded down flat.

• Remove pressure washer from carton.

Carton Contents

Items in the carton include:

• Main Unit

• Goggles

• High Pressure Hose

• Spray Gun

• Nozzle Extension

• Oil Bottle

• Parts Bag (which includes the following):

• Maintenance Kit

• Owner’s Manual

• Engine Manual

• Owner’s Registration Card

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

PREPARING PRESSURE

WASHER FOR USE

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

1. Fill out and send in registration card.

2. Add oil to engine crankcase.

3. Add fuel to fuel tank.

4. Connect high pressure hose to spray gun and pump.

5. Connect water supply to pump.

6. Attach nozzle extension to spray gun.

Add Engine Oil and Fuel

• Place pressure washer on a level surface.

• Refer to engine owner’s manual and follow oil and fuel recommendations and instructions.

NOTE: Check oil often during engine break–in. Refer to engine owner’s manual for recommendations.

CAUTION

• Refer to engine manual for oil and fuel fill information.

• Damage to equipment resulting from failure to follow this instruction will void warranty.

Any attempt to crank or start the engine before it has been properly filled with the recommended oil will result in equipment failure.

Generac Portable Products 1900 PSI Pressure Washer

Connect Hose and Water Supply to

Pump

IMPORTANT: To avoid pump damage, you must assemble

the nozzle extension to the spray gun and attach all hoses before you start the engine.

1. Uncoil high pressure hose and attach one end of hose to base of spray gun (Figure 1).Tighten by hand.

2. Attach other end of high pressure hose to high pressure outlet on pump (Figure 2).Tighten by hand.

3. Before connecting garden hose to water inlet, inspect inlet screen (Figure 3). Clean screen if it contains debris or replace if damaged. DO NOT RUN PRESSURE WASHER IF SCREEN IS DAMAGED.

4. Run water through garden hose for 30 seconds to clean out any debris.

IMPORTANT: DO NOT siphon standing water for water supply. Use ONLY cold water (less than 100°F).

5. Connect garden hose (not to exceed 50 feet in length) to water inlet.Tighten by hand (Figure 3).

6. Turn ON water and squeeze trigger on gun to purge pump system of air and impurities.

Checklist Before Starting Engine

Review the unit’s assembly to ensure you have performed all of the following.

1. Check that oil has been added to proper level in

engine crankcase.

2. Add proper gasoline to fuel tank.

3. Check for properly tightened hose connections (high

pressure and water supply) and there are no kinks, cuts, or damage to e high pressure hose.

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

5. Be sure to read "Safety Rules" and "How To Use

Pressure Washer" before using pressure washer.

Connect high

pressure hose here

Figure 1 — Connect High Pressure Hose to Spray Gun

Figure 2 — Connect High Pressure Hose to Pump

Inspect inlet

screen, DO NOT

use if damaged;

clean if dirty.

Figure 3 — Connect the Garden Hose to Water Inlet

• Always wear eye protection when using this equipment or in vicinity of where equipment is in use.

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

High pressure spray can cause paint chips or other particles to become airborne.

WARNING

CAUTION

• Damage to equipment resulting from failure to follow this instruction will void warranty.

There MUST be at least ten feet of unrestricted garden hose between the pressure washer inlet and any flow shut off device, such as a ‘Y’ shut-off connector or other convenience-type water shut-off valve.

Generac Portable Products 1900 PSI Pressure Washer

HOW TO USE PRESSURE

WASHER

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

1-800-270-1408.

How To Start Pressure Washer

To start your pressure washer for the first time, follow these instructions step-by-step.This starting information also applies if you have let the pressure washer sit idle for at least a day.

1. Place pressure washer near an outside water source capable of supplying water at a flow rate greater than

3.0 gallons per minute and no less than 20 PSI at pressure washer end of garden hose.

2. Check that high pressure hose is tightly connected to spray gun and to pump. See “Preparing Pressure Washer for Use” for illustrations.

3. Make sure unit is in level position.

4. Connect garden hose to water inlet on pressure washer pump. Turn ON the water.

5. Attach adjustable nozzle extension to spray gun (Figure 4).Tighten by hand.

6. Position nozzle in low pressure mode (see “How To Use Adjustable Nozzle”) and squeeze trigger on spray gun to relieve air pressure caused by turning ON water.Water will flow out of spray gun in thin stream. Continue to hold trigger until steady stream of water occurs and no air remains in system.This will make it easier to pull start the engine. Release trigger.

7. Engage safety latch to spray gun trigger (Figure 5).

8. Start engine according to instructions given in engine owner’s manual.

NOTE:Always keep the throttle lever in the “Fast” position when operating the pressure washer.

How To Stop Pressure Washer

• Turn engine off according to instructions given in the

engine owner’s manual.

• Squeeze trigger on the spray gun to relieve

pressure in the hose.

NOTE:A small amount of water will squirt out when

pressure is released.

Figure 4 — Connect Nozzle Extension to Spray Gun

Safety Latch

Figure 5 — Spray Gun with Safety Latch Engaged

CAUTION

• Always use handle to lift equipment.

• NEVER pull on hoses to move equipment.

Avoid fire from equipment tip over.

CAUTION

• Squeeze trigger on spray gun each time recoil starter is pulled and engine fails to start.

Avoid injury from kickback.

CAUTION

• Damage to equipment resulting from failure to follow this instruction will void warranty.

DO NOT run the pump without the water supply connected and turned on.

Generac Portable Products 1900 PSI Pressure Washer

How To Use 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 to apply detergent or other cleaning chemicals.

1. Slide nozzle forward to adjust spray to low pressure mode (Figure 6). Slide nozzle backward to achieve high pressure.

2. Point nozzle towards a firm surface and press trigger to test spray pattern (Figure 7).

3. Twisting nozzle adjusts spray pattern from a narrow pattern to a fan pattern (Figure 8).

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

5. If spray nozzle is held too close to surface, especially using high pressure mode, damage to surface may occur.

6. DO NOT get closer than 6 inches when cleaning tires.

Applying Detergent With Adjustable

Nozzle

IMPORTANT: Use soaps designed specifically for pressure washers. Household detergents could damage

the pump.

To apply detergent, follow these steps:

1. Review adjustable nozzle use.

2. Prepare detergent solution as required by job.

3. Place filter end of chemical injection hose into detergent

container.

Slide nozzle backward

for High Pressure

Mode

Slide nozzle forward for low

pressure mode and

detergent application

Figure 6 — Adjusting Nozzle for Pressure

Figure 7 — Testing the Spray Pattern

Figure 8 — Adjusting the Nozzle for Spray Pattern

Rotate nozzle

counterclockwise for fan

spray pattern

Rotate nozzle clockwise

for narrow spray pattern

CAUTION

• Starting the engine without all the hoses connected and without the water turned ON will damage the pump.

• Damage to equipment resulting from failure to follow this instruction will void warranty.

You must attach all hoses before you start the engine.

• NEVER adjust spray pattern when spraying.

• NEVER put hands in front of nozzle to adjust spray pattern.

A pressure washer produces a high pressure spray which increases risk of injury and damage to unit.

CAUTION

Generac Portable Products 1900 PSI Pressure Washer

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

5. Make sure garden hose is connected to water inlet. Check that high pressure hose is connected to spray gun and pump; start engine.

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

7. Allow detergent to "soak in" for 3-5 minutes before washing and rinsing. Reapply as needed to prevent surface from drying. DO NOT allow detergent to dry on (prevents streaking).

IMPORTANT: You must flush the chemical injection system after each use by placing the filter into a bucket of clean water, then run the pressure washer in low pressure for 1-2 minutes.

Pressure Washer Rinsing

For Rinsing:

1. Slide nozzle backward to high pressure, press trigger and wait for detergent to clear.

NOTE:You can also stop detergent from flowing by simply removing chemical injection hose from bottle.

2. Keep spray gun a safe distance from surface.

3. Apply high pressure spray to a small area, then check surface for damage. If no damage is found, it is okay to continue cleaning.

4. Start at top of area to be rinsed, working down with same overlapping strokes as used for washing and applying detergent.

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 temperatures above 125°F.The system engages to cool the pump by

discharging the warm water onto the ground.

• Keep spray nozzle between 8 to 24 inches away from cleaning surface.

• Operate this unit on a stable surface.

• Be extremely careful if you must use the pressure washer from a ladder, scaffolding or any other relatively unstable location.

• Firmly grasp spray gun with both hands when using high pressure spray to avoid injury if gun kicks back.

High pressure spray could cause you to fall if you are too close to the cleaning surface.

WARNING

CAUTION

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

Keep the chemical injection tube from coming in contact with the hot muffler.

Generac Portable Products 1900 PSI Pressure Washer

SPECIFICATIONS

Outlet Pressure . . . . . 1900 psi

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

Detergent . . . . . . . . . . Use detergent approved for

pressure washers

Water Supply . . . . . . Not to Exceed 100°F

Temperature

Automatic Cool . . . . Will cycle when water

Down System reaches 125°-155°F

Shipping Weight . . . .46 lbs.

GENERAL MAINTENANCE

RECOMMENDATIONS

The pressure washer 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 pressure washer as instructed in this manual.

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

• All maintenance in this manual and the engine owner’s manual should be made at least once each season.

• Once a year you should check the spray gun and adjustable nozzle extension assembly for wear.Also clean or replace the spark plug and clean or replace the engine air filter. Please refer to engine owner’s manual for more details.

Before Each Use

1. Check engine oil level.

2. Check water inlet screen for damage.

3. Check in-line filter for damage.

4. Check high pressure hose for leaks.

5. Check chemical injection hose and filter for damage.

6. Check spray gun and adjustable nozzle extension

assembly for leaks.

7. Rinse out garden hose to flush out debris.

PRESSURE WASHER

MAINTENANCE

Check and Clean Inlet Screen

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

Check High Pressure Hose

The high pressure hose can develop leaks from wear, kinking, or abuse. Inspect the 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 the hose immediately.

Check Chemical Injection Hose

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

Check Gun and Adjustable Nozzle

Extension

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

Purge Pump of Air and

Contaminants

To remove air from the pump, follow these steps:

1. Set up pressure washer as described in “Preparing Pressure Washer For Use”. Connect water supply and turn water on.

• NEVER repair high pressure hose. Replace it.

• Replacement hose rating MUST exceed maximum pressure rating of unit.

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

WARNING

Generac Portable Products 1900 PSI Pressure Washer

2. Pull spray gun trigger and hold.

3. When water stream is steady and constant, engage safety latch.

To remove contaminants from the pump, follow these steps:

1. Set up pressure washer as described in “Preparing Pressure Washer For Use”. Connect water supply and turn water on.

2. Remove nozzle extension from spray gun.

3. Start engine according to instructions in engine owner’s manual.

4. Squeeze spray gun trigger and hold.

5. When water stream is steady and constant, engage safety latch and reattach nozzle extension.

Check In-Line Filter

Refer to Figure 9 and service the in-line filter if it becomes clogged, as follows:

1. Detach spray gun and nozzle extension from high pressure hose. Detach nozzle extension from spray gun and remove o-ring and screen from nozzle extension. Flush screen, spray gun, and adjustable nozzle extension with clean water to clear debris.

2. If screen is damaged, o-ring kit contains a replacement in-line filter screen and o-ring. If undamaged, reuse screen.

3. Place in-line filter screen into threaded end of nozzle extension. Direction does not matter. Push screen in with eraser end of pencil until it rests flat at bottom of opening.Take care to not bend screen.

4. Place o-ring into threaded end of nozzle extension. Push o-ring snugly against in-line filter screen.

5. Assemble nozzle extension to spray gun,as described earlier in this manual.

Cleaning Chemical Injection Hose

If you used the chemical injection hose, you must flush it with clean water before stopping the engine.

1. Place chemical injection hose in a bucket full of clean water.

2. Slide adjustable nozzle forward to low pressure position. Flush for 1-2 minutes.

3. Shut off engine.

IMPORTANT: Simply shutting OFF engine will not release pressure in the system. When the engine has

shut down, squeeze the trigger on the spray gun to relieve the pressure in the hose.

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 orifice clogged or restricted with foreign materials, such as dirt, etc.To correct the problem, immediately clean the orifice using the tools included with your pressure washer and follow these instructions:

1. Shut off engine and turn off water supply.

2. Detach nozzle extension from spray gun.Twist nozzle

clockwise to stream position. Using 2mm (5/64) allen wrench, remove orifice from end of nozzle extension (Figure 10).

3. Remove in-line filter from other end of nozzle extension.

4. Use wire (or small paper clip) to free any foreign

material clogging or restricting orifice (Figure 10).

Nozzle Extension

Filter Screen

O-ring

Figure 9 — Clean In-Line Filter

Orifice

Figure 10 — Removing and Cleaning Orifice

Generac Portable Products 1900 PSI Pressure Washer

5. Using garden hose, remove additional debris by back flushing water through nozzle extension (Figure 11). Back flush between 30 to 60 seconds.Turn adjustable nozzle extension to stream spray and move nozzle from low to high while flushing.

6. Reinstall orifice and in-line filter into nozzle extension. Do Not overtighten orifice with allen wrench.

7. Reconnect nozzle extension to spray gun.

8. Reconnect water supply, turn on water, and start engine.

9. Test pressure washer by operating with nozzle in high and low positions.

O–Ring Maintenance

Through the normal operation of your pressure washer, o–rings are used to keep the connections of the hoses and spray gun tight and leak–free.These o-rings may become worn or damaged.

An O–Ring Maintenance Kit is provided with your pressure washer which includes replacement o-rings, rubber washer and water inlet filter. Refer to the instruction sheet provided in the kit to service your unit’s o-rings. Note that you will not use all of the parts in the kit.

To remove a worn or damaged o–ring; use a small flathead screwdriver to get underneath the o-ring and pry it off.

Pump Maintenance

Changing Pump Oil

Change oil every 50 hours or once yearly, whichever occurs first.

NOTE:You must purchase a premeasured bottle of pump oil, item number 190586GS, by contacting the nearest authorized service center.

Change pump oil as follows:

1. Drain engine oil and fuel from pressure washer.

2. Use 8mm allen wrench to remove black pump oil cap, found between high pressure outlet and garden hose inlet (Figure 12).

3. Tilt pressure washer to drain oil into an approved container until it drips slowly from the pump.

4. Tilt pressure washer in opposite direction and empty premeasured pump oil bottle into same opening (a small funnel may be helpful).

5. Install black pump oil cap and tighten firmly.

6. Set pressure washer in upright position.Add fuel and engine oil.

ENGINE MAINTENANCE

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

CAUTION! KEEP OUT OF REACH OF

CHILDREN. DON'T POLLUTE. CONSERVE RESOURCES. RETURN USED OIL TO COLLECTION CENTERS.

Figure 11 — Backflushing the Nozzle

Oil Cap

Figure 12 - Changing Pump Oil

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

• Thoroughly wash exposed areas with soap and water.

Avoid prolonged or repeated skin contact with used motor oil.

CAUTION

Generac Portable Products 1900 PSI Pressure Washer

PREPARING THE UNIT

FOR STORAGE

Water should not remain in the unit for long periods of time. Sediments or 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 chemical injection hose by placing filter into pail of clean water while running pressure washer in low pressure mode (adjustable nozzle in forward position). Flush for one to two minutes.

2. Shut off engine and let it cool, then remove high pressure and garden hoses. Disconnect spark plug wire from spark plug.

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

4. Use PumpSaver to prevent corrosion build up and freezing of pump.

5. Store unit in a clean, dry area.

Protecting the Pump

To protect the pump from damage caused by mineral deposits or freezing, use PumpSaver to treat pump.This prevents freeze damage and lubricates pistons and seals.

NOTE: PumpSaver is available as an optional accessory. It is not included with the pressure washer. Contact the nearest authorized service center to purchase PumpSaver.

To use PumpSaver, make sure the pressure washer is turned off and disconnected from supply water. Read and follow all instructions and warnings given on the PumpSaver container.

NOTE:PumpSaver will drip from pump after treatment and will stain wood and concrete.

NOTE: If PumpSaver is not available, draw RV antifreeze (non-alcohol) into the pump by pouring the solution into a 3-foot section of garden hose connected to inlet adapter and pulling recoil handle twice.

STORING THE ENGINE

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

CAUTION

• Failure to do so will permanently damage your pump and render your unit inoperable.

• Freeze damage is not covered under warranty.

You must protect your unit from freezing temperatures.

• Always wear eye protection when using PumpSaver.

Read and follow all cautions and warnings on the PumpSaver can label.

CAUTION

Generac Portable Products 1900 PSI Pressure Washer

TROUBLESHOOTING

Problem

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

Detergent fails to mix with spray.

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

Engine shuts down during operation.

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 100°F.

7. High pressure hose is blocked or leaks.

8. Gun leaks.

9. Nozzle is obstructed.

10.Pump is faulty.

1. Detergent siphoning tube is not submerged.

2. Chemical filter is clogged.

3. Dirty in-line filter.

4. Nozzle is in high pressure mode.

Engine speed is too slow.

Out of gasoline.

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 Briggs & Stratton Power Products service facility.

1. Insert detergent siphoning tube into detergent.

2. Clean or replace filter/detergent siphoning tube.

3. See "Check In-Line Filter".

4. Push nozzle forward for low pressure mode.

Move throttle control to FAST position. If engine still "bogs down", contact engine manufacturer.

Fill fuel tank.

Generac Portable Products 1900 PSI Pressure Washer

EXPLODED VIEW AND PARTS LIST – MAIN UNIT

Item Part # Description

1 M190259GS BASE 2 192308GS KIT, Pump/Engine Mounting Hardware 3 190249GS HOSE 4 193482GS GUN 5 193609DGS ORIFICE 6 193735DGS WAND,Adjustable Nozzle 7 23139GS KEY 8 194216GS ASSY, Pump (see page 17)

900 NSP ENGINE

Items Not Illustrated

192464GS MANUAL, Owner’s MS5373 MANUAL, Engine 192674GS KIT, Decal BB3061BGS BOTTLE, Oil 191922GS KIT, O-RING MAINT & NZZL CLNNG

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