Introduction & Important Safety Information
Thank you for purchasing this Pressure Washer. Kärcher reserves the right to make changes at any time without incurring any obligation.
Owner/User Responsibility:
The owner and/or user must understand the manufacturer's operating instructions and warnings before use. If the operator is not fluent in English, instructions and warnings must be read and discussed in the operator's native language by the purchaser/owner, ensuring comprehension. The owner/user must study and maintain the instructions for future reference. The operator must know how to stop the machine quickly and understand all controls. Never permit operation without proper instructions.
SAVE THESE INSTRUCTIONS
This manual is a permanent part of the machine and should remain with it if resold. When ordering parts, specify model and serial number. Use only identical replacement parts. This machine is to be used only by trained operators.
Important Safety Information
WARNING: To reduce the risk of injury, read operating instructions carefully before using.
- Read the owner's manual thoroughly. Failure to follow instructions could cause malfunction, resulting in death, serious bodily injury, and/or property damage.
- Know how to stop the machine and bleed pressure quickly. Be thoroughly familiar with the controls.
- Stay alert – watch what you are doing.
- All installations must comply with local codes. Contact your electrician, plumber, utility company, or selling distributor for specific details. Machines rated 250 volts or less, single phase, will be provided with a ground fault circuit interrupter (GFCI). Machines rated over 250 volts or more than single phase should only be connected to a power supply receptacle protected by a GFCI.
DANGER: Improper connection of the equipment-grounding conductor can result in a risk of electrocution. Check with a qualified electrician or service personnel if you are in doubt about grounding. Do not modify the plug; if it does not fit the outlet, have a proper outlet installed by a qualified electrician. Do not use any type of adapter.
WARNING: Keep wand, hose, and water spray away from electric wiring or fatal electric shock may result.
[Keep water spray away from electrical wiring]
5. To protect the operator from electrical shock, the machine must be electrically grounded. The owner is responsible for connecting this machine to a UL grounded receptacle of proper voltage and amperage ratings. Do not spray water on or near electrical components. Do not touch the machine with wet hands or while standing in water. Always disconnect power before servicing.
WARNING: Flammable liquids can create fumes which can ignite, causing property damage or severe injury.
[Risk of explosion: Do not spray near flammable liquids]
6. Do not allow acids, caustic or abrasive fluids to pass through the pump.
7. Never run the pump dry or leave the spray gun closed for longer than 1-2 minutes.
8. Keep the operating area clear of all persons.
WARNING: High pressure spray can cause paint chips or other particles to become airborne and fly at high speeds. To avoid personal injury, eye, hand, and foot safety devices must be worn.
[Use protective eye wear and clothing when operating this equipment]
9. Eye, hand, and foot protection must be worn when using this equipment.
WARNING: Grip cleaning wand securely with both hands before starting. Failure to do this could result in injury from a whipping wand.
[Trigger gun kicks back - Hold with both hands]
WARNING: High pressure developed by these machines will cause personal injury or equipment damage. Keep clear of nozzle. Use caution when operating. Do not direct discharge stream at people, or severe injury or death will result.
[Risk of injection or severe injury to persons. Keep clear of nozzle.]
10. To reduce the risk of injury, close supervision is necessary when a machine is used near children. Do not allow children to operate the pressure washer. This machine must be attended during operation.
11. Never make adjustments on the machine while in operation.
12. Be certain all quick coupler fittings are secured before using the pressure washer.
WARNING: Protect machine from freezing.
[Protect from freezing]
13. To keep the machine in the best operating condition, it is important to protect the machine from freezing. Failure to protect the machine from freezing could cause malfunction, resulting in death, serious bodily injury, and/or property damage. Follow storage instructions specified in this manual.
14. Inlet water must be clean fresh water and no hotter than 90°F.
15. Kärcher will not be liable for any changes made to its standard machines or any components not purchased from Kärcher.
16. The best insurance against an accident is precaution and knowledge of the machine.
WARNING: Be extremely careful when using a ladder, scaffolding, or any other relatively unstable location. The cleaning area should have adequate slopes and drainage to reduce the possibility of a fall due to slippery surfaces.
[Risk of injury from falls when using ladder.]
17. Do not overreach or stand on unstable support. Keep good footing and balance at all times.
18. Do not operate this machine when fatigued or under the influence of alcohol, prescription medications, or drugs.
Follow the maintenance instructions specified in the manual.
Component Identification
Diagram showing the Kärcher pressure washer components. Key parts labeled include: Water Faucet, Discharge Nipple, Pump, Oil Dip Stick, Water Supply Hose (not included), Spray Gun, Quick Coupler, Inlet Connector, Trigger, Wand, Flex Wand, High Pressure Hose, Pressure Nozzle, Electric Motor, Power Supply, Plug, Nozzle Quick Coupler.
High Pressure Hose: Connect one end to water pump discharge nipple and the other end to spray gun.
Nozzle Quick Coupler: Allows quick change of nozzles.
Pump: Develops high pressure.
Spray Gun: Controls the application of water and detergent onto cleaning surface with trigger device. Includes safety latch.
Wand: Must be connected to the spray gun.
Flex Wand: Allows operator flexibility in spray angle. (Standard on PLUS models only).
Assembly Instructions
STEP 1: Attach the high pressure hose to the spray gun with quick coupler.
STEP 2: Attach nozzle extension to spray gun/wand. Tighten both by hand.
STEP 3: Pull the spring-loaded collar of the wand coupler back to insert your choice of pressure nozzle.
STEP 4: Release the coupler collar and push the nozzle until the collar clicks. Pull the nozzle to make sure it is seated properly.
STEP 5: Remove shipping cap and install oil dipstick. Check pump oil level by using dipstick. Use 40 wt. non detergent oil.
STEP 6: Connect the high pressure hose to the pump discharge fitting. Push coupler collar forward until secure.
STEP 7: Connect the garden hose to pump inlet. Inspect inlets. CAUTION: Do not run the pump without water or pump damage will result.
Operating Instructions
STEP 1: Connect garden hose to the cold water source and turn water on completely. Never use hot water.
STEP 2: Trigger the spray gun to eliminate trapped air then wait for a steady flow of water to emerge from the spray nozzle.
STEP 3: Connect to appropriate power supply.
STEP 4: Turn machine on by pressing remote control box (if equipped) or by flipping the switch at the rear of the motor and by triggering the spray gun.
WARNING! Never replace nozzles without engaging the safety latch on the spray gun trigger.
Shutdown and Clean-up
STEP 1: Remove detergent suction tube from container and insert into one gallon of fresh water. Slide nozzle forward for low pressure or to connect black detergent nozzle. Pull trigger on spray gun and siphon water for one minute.
STEP 2: Turn off machine by flipping switch on rear of motor or by pressing the switch on the remote control box (if equipped).
STEP 3: Turn off water supply.
STEP 4: Press trigger to release water pressure.
STEP 5: Disconnect the garden hose from the water inlet on the machine.
STEP 6: Disconnect the high pressure hose from high pressure outlet.
STEP 7: Engage the spray gun safety lock.
Storage
CAUTION: Always store your pressure washer in a location where the temperature will not fall below 32° F (0° C). The pump in this machine is susceptible to permanent damage if frozen. FREEZE DAMAGE IS NOT COVERED BY WARRANTY.
If you must store your pressure washer in a location where the temperature is below 32° F, you can minimize the chance of damage to your machine by draining your machine as follows:
- Stop the pressure washer and detach supply hose and high pressure hose. Squeeze the trigger of the spray gun to drain all water from the wand and hose.
- Restart pressure washer and let it run briefly (about 5 seconds) until water no longer discharges from the high pressure outlet.
Troubleshooting
| PROBLEM | POSSIBLE CAUSE | SOLUTION |
|---|---|---|
| PUMP RUNNING NORMALLY BUT PRESSURE LOW ON INSTALLATION | Pump sucking air | Check water supply and possibility of air seepage. |
| Check valves sticking | Check and clean or replace if necessary. | |
| Unloader valve seat faulty | Check and replace if necessary. | |
| Nozzle incorrectly sized | Check and replace if necessary. | |
| Worn piston packing | Check and replace if necessary. | |
| FLUCTUATING PRESSURE | Valves worn | Check and replace if necessary. |
| Blockage in valve | Check and replace if necessary. | |
| Pump sucking air | Check water supply connections. | |
| Worn piston packing | Check and replace if necessary. | |
| PRESSURE LOW AFTER PERIOD OF NORMAL USE | Insufficient water | Check filter and hose for breakage/clogging |
| Nozzle worn | Check and replace if necessary. | |
| Suction or delivery valves worn | Check and replace if necessary. | |
| Suction or delivery lines blocked | Check and clean if necessary. | |
| PUMP NOISY | Unloader valve seat worn | Check and replace if necessary. |
| Worn piston package | Check and replace if necessary. | |
| Water temperature excessive | Reduce to below 140° F. | |
| Air in suction line | Check water supply and connections on suction line. | |
| Broken or weak suction or delivery valve spring. | Check and replace if necessary. | |
| Foreign matter in valves | Check and clean if necessary. | |
| Worn bearings | Check and replace if necessary. | |
| PRESENCE OF WATER IN PUMP OIL | Water temperature excessive | Reduce to below 160° F. |
| Oil seal worn | Check and replace if necessary. | |
| High humidity in air | Check and replace if necessary. | |
| WATER DRIPPING FROM UNDER PUMP | Piston packing worn | Check and replace if necessary. |
| Piston packing worn | Check and replace if necessary. | |
| O-ring plunger retainer worn | Check and replace if necessary. | |
| WATER DRIPPING FROM PUMP PROTECTOR | Water supply pressure too high (over 90 psi) | Lower water supply pressure using regulator. |
| Spray gun is in the off position for over 1-2 minutes | Turn machine off if not in use for over 1-2 minutes. | |
| OIL DRIPPING | Oil seal worn | Check and replace if necessary. |
| EXCESSIVE VIBRATION IN HIGH PRESSURE HOSE | Irregular functioning of the pump valves | Check and replace if necessary. |
| MOTOR DOES NOT START WHEN SWITCHED ON | Plug not well connected or lack of power supply | Check plug, cable and switch. |
| WHEN SWITCHING ON THE MACHINE, MOTOR HUMS BUT DOES NOT RUN | Main voltage is insufficient, lower than the minimum required. | Check to make sure main power supply is adequate. |
| The pump is stuck or frozen | Check by turning the motor manually. | |
| MOTOR STOPS | Tripped thermal overload due to overheating | Check that main voltage corresponds to specifications for the machine. Wait a few minutes before turning on the machine again by resetting the GFCI on the cord. |
Preventative Maintenance
This pressure washer was produced with the best available materials and quality craftsmanship. As the owner, you have responsibilities for the correct care of the equipment. Attention to regular preventative maintenance procedures will assist in preserving performance. Contact your dealer for maintenance. Regular preventative maintenance will add many hours to the life of your pressure washer. Perform maintenance more often under severe conditions.
| Item | Action | Frequency |
|---|---|---|
| Pump Oil | Inspect | Daily, Inspect the oil level |
| Change | After first 50 hours, then every 500 hours or annually | |
| Replace High Pressure Nozzle | Every 6 months | |
| Replace Quick Connects | Annually | |
| Replace Clean Water Screen/Filter | Weekly | |
| Replace HP Hose | Annually if there is any sign of wear | |
| Grease Motor | Every 10,000 hours or annually |
General Inspection
Inspect the motor at regular intervals, approximately every 500 hours of operation, or every 3 months, whichever occurs first. Keep the motor clean and the ventilation openings clear. The following steps should be performed at each inspection:
WARNING: Do not touch electrical connections before you first ensure that power has been disconnected. Electrical shock can cause serious or fatal injury. Only qualified personnel should attempt the installation, operation, and maintenance of this equipment.
- Check that the motor is clean. Check that the interior and exterior of the motor is free of dirt, oil, grease, water, etc. Oily vapor, paper pulp, textile lint, etc. can accumulate and block motor ventilation. If the motor is not properly ventilated, overheating can occur and cause early motor failure.
- Check all electrical connectors to be sure that they are tight.
Lubrication & Bearings
Bearing grease will lose its lubricating ability over time, not suddenly. The lubricating ability of a grease (over time) depends primarily on the type of grease, the size of the bearing, the speed at which the bearing operates, and the severity of the operating conditions. Good results can be obtained if the following recommendations are used in your maintenance program.
Type of Grease: A high grade ball or roller bearing grease should be used. Recommended greases for standard service conditions are: Shell Dolium R (Factory installed) or Chevron SRI.
OIL CHANGE RECORD
A table is provided for recording oil changes. It includes columns for "Date Oil Changed (Month/Day/Year)" and "Estimated Operating Hours Since Last Oil Change".
Optional Wall Mount
Diagram illustrating the optional wall mount setup for the pressure washer, showing the unit mounted on a wall with hoses and spray gun connected. An instruction label should be placed next to the machine and within easy view of all users.
Hose & Spray Gun Assembly & Parts List
Diagram showing the hose and spray gun assembly.
| ITEM | PART NO. | DESCRIPTION | QTY | ITEM | PART NO. | DESCRIPTION | QTY |
|---|---|---|---|---|---|---|---|
| 1 | 9.802-166.0 | Coupler, 3/8" Female | 1 | 5 | 9.802-164.0 | Coupler, 1/4" Female | 1 |
| 9.802-100.0 | Quick Coupler O-Ring | 1 | 9.802-096.0 | Quick Coupler O-Ring | 1 | ||
| 2 | 8.739-133.0 | Hose, 3/8" x 25', LA 1-wire, Tuff-Skin (ZE and ZEF models) | 1 | 6 | 9.802-296.0 | Nozzle, 4.0 15° Yellow (Remote Switch Option) | 1 |
| 8.739-106.0 | Hose, 3/8" x 25', 1-wire, HO, Tuff Skin (ET models) | 1 | 9.802-288.0 | Nozzle, 3.0 15° Yellow (1400 PSI AXD/BXD) | 1 | ||
| 8.739-124.0 | Hose, 3/8" x 25', 1-wire, KA, Tuff Skin (HD and HE) | 1 | 9.804-624.0 | Nozzle, 3.75 15° Yellow (1000 PSI AXD/BXD) | 1 | ||
| 3 | 8.754-769.0 | Spray Gun, Shut-Off | 1 | 8 | 9.802-170.0 | Nipple, 3/8" NPT Female | 1 |
| 4 | 9.802-220.0 | Wand, Straight | 1 | 9 | 8.904-449.0 | Flex Wand Assembly (ZE2-14024D Models) | 1 |
| 10 | 9.802-169.0 | Coupler, 3/8 Male | 1 | ||||
| 11 | 8.712-398.0 | Nozzle, Soap Black (Not Shown) | 1 |
