greenworks GPW1800 1800 PSI 1.2 GPM Pressure Washer Instruction Manual

June 14, 2024
Greenworks

greenworks GPW1800 1800 PSI 1.2 GPM Pressure Washer

greenworks GPW1800 1800 PSI 1.2 GPM Pressure Washer

DESCRIPTION

PURPOSE

The machine is used to used to clean vehicles, boats, buildings, porches, decks, patios, and driveways.
For domestic use only, not for professional use, and for operation at temperature above 32°F (0°C).

PRODUCT OVERVIEW

  1. Upper handle
  2. Gun holder
  3. Spray wand
  4. Nozzle
  5. High pressure hose
  6. Gun
  7. Power cord
  8. Power switch
  9. Detergent tank
  10. Water inlet
  11. Gun trigger
  12. Trigger safety button
  13. Wheel
  14. Spray tip cleaning tool
  15. Axle
  16. Washer
  17. Pin
  18. Handle lock button
  19. Outlet coupler cap
  20. Inlet coupler
  21. Drip loop
  22. Garden hose
  23. Quick connect collar
    Product Overview

GENERAL POWER TOOL SAFETY WARNINGS

  WARNING

When using this product basic precautions should always be followed, including the following:

Save all warnings and instructions for future reference.

The term “power tool” in the warnings refers to your mains operated (corded) power tool.

GENERAL POWER TOOL SAFETY WARNINGS

  • The machine is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

  • Learn the machine’s applications and limitations as well as the specified potential hazards related to this tool by studying this manual.

  • Never operate the machine with any guard or cover removed or damaged.

  • Do not operate the product while under the influence of drugs, alcohol, or any medication.

  • Do not wear loose clothing, gloves, neckties, or jewelry.
    They can get caught and draw you into moving parts.

  • Rubber gloves and nonskid footwear are recommended when working outdoors. Also wear protective hair covering to contain long hair. Wear footwear that will protect your feet and improve your grip on slippery surfaces.

  • Don’t overreach or stand on unstable support. Keep proper footing and balance at all times.

  • Check the work area before each use. Remove all objects such as rocks, broken glass, nails, wire, or string which can be thrown or become entangled in the machine.

  • Avoid dangerous environments. Don’t expose to rain. Keep work area well lit.

  • Before starting any cleaning operation, close doors and windows. Clear the area to be cleaned of debris, toys, outdoor furniture, or other objects that could create a hazard.

  • Don’t use the appliance within range of persons unless they wear protective clothing.

GROUND FAULT CIRCUIT INTERRUPTER PROTECTION

This pressure washer is provided with a ground fault circuit interrupter (GFCI) built into the plug of the power supply cord. This device provides additional protection from the risk of electric shock. Should replacement of the plug or cord become necessary, use only identical replacement parts that include GFCI protection.

ELECTRICAL SAFETY WARNINGS

  • Disconnect from the electrical power supply before carrying out user maintenance.
  • Use only extension cords that have watertight connections and are intended for outdoor use. Use only extension cords having an electrical rating not less than the rating of the product. Examine extension cord before using and replace if damaged. Do not abuse extension cord and do not pull on any cord to disconnect. Keep cord away from heat and sharp edges. Always disconnect the extension cord from the receptacle before disconnecting the product from the extension cord.
  • Do not use the machine if a supply cord or important parts of the appliance are damaged, e.g. safety devices, high pressure hoses, trigger gun.
  • Inadequate extension cords can be dangerous.
  • To reduce the risk of electrocution, keep all connections dry and off the ground. Do not touch plug with wet hands.
  • Do not abuse the cord. Never use the cord to carry the product or to disconnect the plug from an outlet. Keep cord away from heat, oil, sharp edges, or moving parts. Replace damaged cords immediately. Damaged cords increase the risk of electric shock.
  • Inspect extension cords periodically and replace if damaged. Keep handles dry, clean, and free from oil or grease.

PRESSURE WASHER SAFETY WARNINGS

  • Read all the instructions before using the product.
  • To reduce the risk of injury, close supervision is necessary when a product is used near children.
  • Know how to stop the product and bleed unit pressure quickly. Be thoroughly familiar with the controls.
  • Stay alert – watch what you are doing.
  • Do not operate the product when fatigued or under the influence of alcohol or drugs.
  • Keep operating area clear of all persons.
  • Do not overreach or stand on unstable support. Keep good footing and balance at all times.
  • Follow the maintenance instructions specified in the manual.
  • This product is provided with a ground fault circuit interrupter built into the power cord plug. if replacement of the plug or cord is needed, use only identical replacement parts.
  • Risk of injection or injury– Do not direct discharge stream at persons.
  • Keep the motor away from flammables and other hazardous materials.
  • Keep product dry, clean, and free from oil and grease. Always use a clean cloth when cleaning. Never use brake fluids, gasoline, petroleum-based products, or any solvents to clean product.

  WARNING

To reduce the risk of electrocution, keep all connections dry and off the ground. Do not touch plug with wet hands.

SERVICING OF A DOUBLEINSULATED APPLIANCE

  • Within a double-insulated product, two systems of insulation are provided instead of grounding. No grounding means is provided on a double-insulated product, nor should a means for grounding be added to the product. Servicing a double-insulated product requires extreme care and knowledge of the system, and should be done only by qualified service personnel. Replacement parts for a double-insulated product must be identical to the parts they replace. A double insulated product is marked with the words “DOUBLE INSULATION” or “DOUBLE INSULATED.”

EXTENSION CORDS

  • Use only extension cords that are intended for outdoor use. These extension cords are identified by a marking “Acceptable for use with outdoor appliances; store indoors while not in use.” Use only extension cords having an electrical rating not less than the rating of the product. Do not use damaged extension cords. Examine extension cord before using and replace if damaged. Do not abuse extension cord and do not yank on any cord to disconnect. Keep cord away from heat and sharp edges.
    Always disconnect the extension cord from the receptacle before disconnecting the product from the extension cord.

CHILD SAFETY

Tragic accidents can occur if the operator is not aware of the presence of children.

  • Keep children out of the working area and under the watchful care of a responsible adult.
  • Stay alert, and turn the machine off if a child or any other person enters the working area.
  • Use extreme care when approaching blind corners, doorways, shrubs, trees, or other objects that may obscure your view of a child who may run into the path of the machine.

SYMBOLS ON THE PRODUCT

Some of the following symbols may be used on this tool.
Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.

Symbol Explanation
To reduce the risk of injury, user must read and understand operator’s

manual before using this product.
| Do not expose the product to rain or moist conditions.
| Always wear safety goggles or safety glasses with side shields and, as necessary, a full face shield when operating this product.
| To reduce the risk of injection or in- jury, never direct a water stream to- wards people or pets or place any body part in the stream. Leaking hoses and fittings are also capable of causing injection injury. Do not hold hoses or fittings.
| To reduce the risk of injury from kickback, hold the spray lance securely with both hands when the ma- chine is on.
| Failure to use in dry conditions and to observe safe practices can result in electric shock.
| Fuel and its vapors are explosive and can cause severe burns or death.
| Warning! Never point the gun to hu- man, animals, the machine body, power supply or any electric appliances.
| Appliance not suitable for connection to the drinking water mains without backflow preventer.
| Only use cleaning deck on flat, horizontal surfaces. Never lift cleaning deck from the cleaning surface while operating the pressure washer.
| Keep hands and feet away from the cleaning deck while the pressure washer is running.

RISK LEVELS

The following signal words and meanings are intended to explain the levels of risk associated with this product.

SYMBOL SIGNAL MEANING
DANGER R Indicates an imminently hazardous situation, which, if not

avoided, will result in death or serious injury.
| WARNING| Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
| CAUTION| Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.
| CAUTION| (Without Safety Alert Symbol) Indicates a situation that may result in property damage.

PROPOSITION 65

WARNING

This product contains a chemical known to the state of California to cause cancer, birth defects or other reproductive harm. Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

  • Lead from lead-based paints;
  • Crystalline silica from bricks and cement and other masonry products;
  • Arsenic and chromium from chemically treated lumber.

Your risk of exposure to these chemicals varies depending on how often you do this type of work. To reduce your exposure to these chemicals, work in a well- ventilated area, and work with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

Save these instructions.

INSTALLATION

ELECTRICAL CONNECTION

This machine has a precisely built electrical motor. It should be connected to a power supply that is 120V, 60 Hz, AC only (household). Do not operate this machine on direct current (DC). A considerable voltage drop will cause a loss of power and the motor will be overheated.

PREPARE A DRIP LOOP

Recommend the use of a drip loop as below so the water can not run along the power cord even possibly reach the electrical outlet and plug.
Installation

WARNING

Keep the extension cord clear of the working area. Position the cord so that it will not get caught on lumber, tools, or other obstructions while you are working with a power tool.
Failure to do so can result in serious personal injury

UNPACK THE MACHINE

WARNING Make sure that you correctly assemble the machine before use.

WARNING

  • If the parts are damaged, do not use the machine.
  • If you do not have all the parts, do not operate the machine.
  • If the parts are damaged or missing, speak to the service center
  1. Open the package.
  2. Read the documentation in the box.
  3. Remove all the unassembled parts from the box.
  4. Remove the machine from the box.
  5. Discard the box and package in compliance with local regulations.

INSTALL THE WHEELS

  1. Put an axle (15) through the wheel (13).
  2. Put the axle through the handle frame.
  3. Attach a washer (16) to the axle.
  4. Put a cotter pin (17) through the hole of the axle.
    Installation

INSTALL THE GUN HOLDER

  1. Alight the screw sleeves of the gun holder (13) with the screw holes on the upper handle.
  2. Push the screws through the screw sleeves and tighten them.

INSTALL THE UPPER HANDLE

  1. Push and hold the handle lock button on the upper handle (18).
  2. Move the upper handle into the lower handle until the handle lock button clicks through the slot.
    Installation

INSTALL THE SPRAY WAND

  1. Push the end of the spray wand (3) into the gun handle (6).
  2. Turn the spray wand clockwise until the tabs lock into position.
    Installation

WARNING

Make sure that the connection has no leakage.

INSTALL THE HIGH PRESSURE HOSE

  1. Push and turn clockwise one end of the high pressure hose (5) into the inlet coupler (20).
  2. Remove the outlet coupler cap.
  3. Install and tighten the other end of the high pressure hose onto the water outlet coupler (19).
    Installation

OPERATION

WARNING

Make sure that all the connections are tight and have no leakage before operation.

CONNECT THE WATER SUPPLY TO THE MACHINE

For easy operation, please use a self-coiling garden hose (not provided).

WARNING

When you operate the self-coiling hose, make sure that the hose has no blockage.

WARNING

  • The water supply must come from the water main
  • Do not use hot water
  • Do not use water from ponds or lakes

WARNING

Do the local regulations when you connect the garden hose to the water supply. Direct connection through a receiver tank or backflow preventer is usually permitted.

CAUTION

Inspect the filter in the water inlet connector before you connect the garden hose

  • If the filter is damaged, do not use the machine until the filter is replaced.
  • If the filter is dirty, clean the filter.
  1. Uncoil the garden hose (22).
  2. Let the water flow through the garden hose for 30 seconds.
  3. Turn the water supply off.
  4. Install and tighten the end of the garden hose to the water inlet connector (10).
    Operating

CAUTION

There must be a minimum of 3 m of free hose between the water inlet and the water supply.

USE THE GUN

Operating

WARNING

For safe control, keep your hands on the gun at all times.

  • Pull and hold the gun trigger to start the machine.
  • Release the gun trigger to stop water flow through the nozzle.

CHANGE THE NOZZLE

WARNING

Before you change the nozzle:

  1. Pull the gun trigger to release water pressure.
  2. Lock the trigger safety button on the gun.
  3. Stop the machine.

WARNING

Do not point the spray wand at your face or others’.

NOZZLE TYPE

SPRAY TIP APPLICATION
Red – Stream tip (0° )
  • The red 0 degree tip provides a straight line of spray. It provides the highest amount of pressure. It is best used for removing hard, stuck-on grime or dirt.

| Green – Narrow fan tip (25° )

  • The green pressure washer tip pro- vides high versatility with its 25 degree angle tip. Referred to as the washing tip, because it provides adequate pressure to remove dirt from surfaces, but is designed to not dam- age many surfaces. This pressure washer tip is designed for “sweeping” foliage or debris given its wide angle. This tip is versatile due to its wide area of cleaning and strong pressure application.

| White – Wide fan tip (40° )

  • The white 40 degree tip, referred to as the “fan” tip creates the widest area of cleaning with relatively low pressure. This pressure washer tip is best used for light or delicate cleaning applications. It is recommended for light cleaning on wood decks and other soft or delicate surfaces.

| Black – Soap spray tip

  • The black soap spray tip, is used for soap application. Soap is applied un- der low pressure high volume for optimum performance. Soap cannot be applied under high pressure with this machine.

| Turbo Nozzle Tip

  • The nozzle rotates in a zero to 15 degree spray pattern in a circular motion to break down tough dirt and grime. The spray pattern can cover area of 4 to 8 inches wide, depending on a distance between the tip and the surface being cleaned.

INSTALL THE NOZZLE

  1. Pull back the quick-connect collar on the spray wand.
  2. Install the nozzle onto the spray wand.
  3. Release the quick-connect collar to attach the nozzle

ADD DETERGENT

Operating

WARNING

Do not use household detergents, acids, alkaline, bleaches, solvents, flammable material, or industrial grade solutions, which can do damage to the pump.

WARNING

Do the instructions on the solution bottle to prepare detergent.

! NOTE

If it is necessary, use a funnel to prevent the spill of detergent. Clean and dry the spilled detergent when you fill it.

! NOTE

Soap/detergent can only be applied with this machine when the black nozzle(75 degree) is installed.

  1. Put the machine vertically on a flat surface..
  2. Open the cap on the detergent tank (9).
  3. Put the detergent into the detergent tank.
  4. Close the cap.

! NOTE

Do not let detergent dry on the surface to prevent streaks.

START THE MACHINE

Operating

CAUTION

Do not operate without the water supply connected.

CAUTION

Before you start the machine:

  1. Turn the water supply on.

  2. Pull the gun trigger to release air pressure.

  3. If a stable stream of water comes out from the gun, release the gun trigger.

  4. Connect the machine to the power supply.

  5. Set the power switch to the “ON” ( | ) position.

  6. Turn the water supply on.

  7. Pull the gun trigger

STOP THE MACHINE

  1. Release the spray gun trigger.
  2. Press down on the ON/OFF switch, once again, to set the power switch to the “OFF” (O) position.

WARNING

If you do not use the machine:

  • Stop the machine.
  • Turn the water supply off.
  • Disconnect the power cord from the outlet.
  • Pull the spray gun trigger to release the remaining pressure from the machine.
  • Engage the trigger safety lock-out on the spray gun.

MAINTENANCE

WARNING

Before maintenance, make sure that you

  • Stop the machine.
  • Wait until all the moving parts stop.
  • Disconnect the plug from the power source

WARNING

Do not use strong solvents or detergents on the plastic housing or components.

WARNING

Do not let brake fluids, gasoline, petroleum-based materials touch the plastic parts. Chemicals can cause damage to the plastic, and make the plastic unserviceable.

WARNING

Replace the power cord by an approved service center.

NOZZLE MAINTENANCE

Maintenance

If there is too much pump pressure, the nozzle can become clogged, you can feel a pulsing sensation while you pull the gun trigger.

REMOVE THE NOZZLE

  1. Pull back the quick-connect collar on the spray wand.
  2. Remove the nozzle from the spray wand.

CLEAN THE NOZZLE

  1. Use a straight paper clip or cleaning tool to clean the spray tip.
  2. Flush and clean the unwanted materials out of the nozzle with the garden hose.
  3. Install the clean nozzle to the spray wand.

TRANSPORTATION AND STORAGE

WARNING

Disconnect the power cord and waters supply hose before transportation and storage.

MOVE THE MACHINE

  • Point the spray wand in a safe direction.
  • Only hold the machine with the handgrip.

STORE THE MACHINE

WARNING

Make sure that the spray gun, the high pressure hose and the pump are dry.

WARNING

Make sure the machine is out of the reach of children.

! NOTE

Use a recommended pump protector to prevent cold weather damage during storage in winter.

  • Disconnect the garden hose from machine.
  • Wind the power cord and the high pressure hose.
  • Clean housing and the plastic components with a moist and soft cloth.
  • Make sure that the machine does not have loose or damaged parts. If it is necessary, follow these steps/ instructions:
    • Replace the damaged parts.
    • Tighten the bolts.
    • If needed, call the customer service phone number (enter number here) for servicing instructions.
  • Store the machine in a dry, isolated and frost-free area.

TROUBLESHOOTING

PROBLEM POSSIBLE CAUSE SOLUTION
The motor does not start. The power button is in the “OFF” (O) position. Set
the power switch to the “ON” ( ) position.
The power cord is not plugged in. Connect the power cord to the power supply.
Electrical outlet does not supply sufficient power. Try another electrical

outlet.
The circuit breaker is tripped.| Let it cool, and start the machine again.
The power switch is on, but you do not pull the spray gun trigger.| Pull the spray gun trigger.
The machine does not reach high pressure.| The diameter of garden hose is too small.| Replace with a 1” (25 mm) or 5/8” (16 mm) garden hose.
Water supply is restricted.| Check garden hose for kinks, leaks, and blockage.
The water supply is not sufficient.| Open the water supply fully.
Spray tip has not be installed onto the spray wand properly.| Install desired spray tip to end of wand.
The water intake filter is clogged.| Remove filter and rinse in warm water.
The output pressure varies high and low.| The water supply is not sufficient.| Open water supply fully. Check garden hose for kinks, leaks, or blockage.
The pump is drawing in air.| Make sure that the hoses and fitting are airtight.
Turn “OFF” machine.
Purge  pump by squeezing trigger gun until a stead flow of water comes out the spray tip.
The water intake filter is clogged.| Remove the filter and Rinse in warm water.
The supply voltage is low.| Make sure that only the pressure washer is running on the circuit.
The gun, hose or nozzle are calcified.| Run distilled vinegar through detergent tank.
The motor buzzes, but the machine does not start.| The supply voltage is low.| Make sure that only the pressure washer is running on the circuit.
The pump system has residual pressure.|

  1. Turn “OFF” the machine.
  2. Pull the spray gun trigger on spray wand to release pressure.
  3. Turn the machine “ON”.

Voltage loss due to use of an improper extension cord.| Disconnect the extension cord, and connect the machine directly into the outlet.
Pressure washer not used for long periods.| Call customer service.
Residual friction among components. Unit might emit a humming noise.|

  1. Disconnect the water supply.
  2. Power “ON” the machine for 2 to 3 seconds.
  3. Repeat the above step a couple of times or until the motor starts.

There is no water.| The water supply is off.| Turn the water supply on.
The garden hose is kinked..| Remove kink in garden hose.

TECHNICAL DATA

Voltage 120 V
Frequency 60 Hz
Current 13 A
Max. Pounds Per Square Inch Pressure 1800 PSI
Rated Gallons Per Minute 1.1 GPM
Maximum Inlet Water Temperature 104 °F (40 °C)
Cleaning Units 1980 C.U.
Weight 26.2 lbs. (11.9 kg)
Double-insulated construction.

LIMITED WARRANTY

3 YEAR LIMITED WARRANTY

Greenworks hereby warranties this product, to the original purchaser with proof of purchase, for a period of three (3) years against defects in materials, parts or workmanship.
Greenworks, at its own discretion, will repair or replace any and all parts found to be defective, through normal use, free of charge to the customer. This warranty is valid only for units which have been used for personal use that have not been purchased or rented for industrial/commercial use, and that have been maintained in accordance with the instructions in the owners’ manual supplied with the product when new.

ITEMS NOT COVERED BY WARRANTY

  1. Any part that has become inoperative due to misuse, commercial use, abuse, neglect, accident, improper maintenance, or alteration; or
  2. The unit, if it has not been operated and/or maintained in accordance with the owner’s manual; or
  3. Normal wear;
  4. Routine maintenance items such as lubricants, blade sharpening;
  5. Normal deterioration of the exterior finish due to use or exposure.

HELPLINE

Warranty service is available by calling our toll free helpline at 1-888-909-6757.

TRANSPORTATION CHARGES:

Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the purchaser. It is the purchaser’s responsibility to pay transportation charges for any part submitted for replacement under this warranty unless such return is requested in writing by Greenworks.

USA address: Canadian address:
Greenworks Tools Greenworks Tools Canada, Inc

P.O. Box 1238 P.O. Box 93095, Newmarket,
Ontario
Mooresville, NC 28115 L3Y 8K3

EXPLODED VIEW

No. Part No. Description Qty.
1 349011923 Foam grip 1
2 349011824 Belt 1
3 331011923 Upper handle 1
4 311211923 Gun holder assy 1
5 322011628 Screw 4
6 322021822 Nut 6
7 311221923 Spray tip panel assy 1
8 C3900258-00 0 degree nozzle 1
9 C3900259-00 25 degree nozzle 1
10 C3900260-00 40 degree nozzle 1
11 34139319 Soap nozzle 1
12 341111635 Cord arm basement 1
13 341101635 Cord arm 1
14 32913847 Washer 1
15 322021635 Screw 1
16 33306847 Spring button 2
17 341091639 Switch knob 1
18 341031923 Cover 1
19 32210302A Screw 6
20 322031635 Screw 8
21 341011923 Upper housing 1
22 Power cord assy 1
22-1 E0800057-00 Power cord 1
22-2 311431923 GFCI 1
23 33302365 U pin 2
24 33211670 Water outlet connector 1
25 34202368 O ring 1
26 34125304 Dust cover 1
27 34103847 Liquid retaining foam 1
28 34203365 Shock absorbing sleeve 2
29 C1107474-00 Motor pump assy 1
30 311221635 Water inlet connector assy 1
31 341021923 Lower housing 1
32 322011923 Screw 4
33 329011635 Washer 4
34 331021923 Main frame 1
35 32222301A Nut M6 1
36 341041923 Soap tank 1
37 342011635 Soap tank cap 1
38 341071923 Suction hose connector 1
39 34900365 Suction hose 1
40 341161635 Foot pad 1
41 322011635 Screw 5
42 311231923 Wheel assy 2
43 3320303 Screw 2
44 3410801 Power cord clamp 1
45 32209302A Screw 2
46 311241923 Switch box assy 1
47 30303301 Fiberglass pipe 2
48 C1101896-00 Gun handle assy 1
49 31115661 Gun wand assy 1
50 31208363 Turbo nozzle 1
51 33201671 Spray tip cleaning tool 1
52 31103973 High pressure hose 1

Exploded View

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