Stihl RE 88 - User Manual

Questions and Answers

D
Dillon FoxAug 14, 2025
How to fix a Stihl Pressure Washer motor that hums but doesn't run?
- K
  Kaitlyn AlvarezAug 15, 2025
  If your Stihl Pressure Washer's motor hums but doesn't run when switched on, it could be due to several reasons. Ensure the mains voltage is adequate and the electrical connections, plug, cable, and switch are in good condition. If you're using an extension cord, make sure it has a sufficient cross-section and isn't too long. Also, check if the mains circuit-breaker has been tripped—if so, switch off the machine, actuate the spray gun until water only drips out, engage the safety catch, and then reset the circuit-breaker. Finally, make sure to actuate the spray gun when switching on the machine.
K
kgrahamAug 18, 2025
Why does my Stihl Pressure Washer motor keep switching on and off?
- R
  riverabarbaraAug 18, 2025
  If the motor of your Stihl Pressure Washer constantly switches on and off, it's possible that the high-pressure pump or spray attachment is leaky.
Z
zgardnerAug 21, 2025
What to do if my Stihl Pressure Washer engine stops?
- E
  Erica JamesAug 21, 2025
  If your Stihl Pressure Washer engine stops, it might be due to the motor overheating. Ensure that the supply voltage matches the machine voltage. Allow the motor to cool down for at least 5 minutes before restarting.
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james49Aug 25, 2025
Why is my Stihl RE 88 Pressure Washer not dispensing detergent?
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  Dwayne SmithAug 26, 2025
  If your Stihl Pressure Washer is not supplying detergent, check if the detergent tank is empty and fill it if necessary. Also, inspect the detergent intake for any clogs and eliminate them.
M
millerstephanieAug 28, 2025
How to troubleshoot a Stihl RE 88 Pressure Washer when the motor hums but doesn't run?
- P
  Philip NavarroAug 28, 2025
  If the motor of your Stihl Pressure Washer does not run but hums when switched on, it could be due to several reasons. First, check the electrical connection, plug, cable, and switch, as the mains voltage might be too low or improper. If you're using an extension cord, ensure it has a sufficient cross-section. Avoid overly long extension cords; try connecting the machine directly or with a shorter cord. Also, the mains circuit-breaker might have tripped. In this case, switch off the machine, actuate the spray gun until water only drips out, engage the safety catch, and reset the breaker. Finally, make sure to actuate the spray gun when switching on the machine.
J
john16Aug 31, 2025
What to do if my Stihl Pressure Washer is not dispensing detergent?
- J
  James HamiltonSep 1, 2025
  If your Stihl Pressure Washer is not supplying detergent, the detergent tank might be empty; refill it. Also, the detergent intake could be clogged, so eliminate any blockage.
C
christina18Sep 4, 2025
Why does my Stihl Pressure Washer pressure fluctuate or drop?
- B
  Brenda Griffith MDSep 4, 2025
  If the pressure fluctuates or drops in your Stihl Pressure Washer, it could be due to several reasons. First, ensure that the water supply is sufficient by completely opening the water tap and complying with the permissible suction lift if you are using suction mode. Check and clean the high-pressure nozzle in the spray head, the water intake strainer in the pump inflow, or the nozzle, as they might be dirty or clogged. If the issue persists, the high-pressure pump may be leaky, or the valves may be defective.
M
Michelle WoodSep 7, 2025
How to fix weak jet on Stihl RE 88 Pressure Washer?
- T
  tinaedwardsSep 7, 2025
  If the jet from your Stihl Pressure Washer is weak, ragged, or unclean, the nozzle may be fouled. Clean the nozzle following the instructions in the "Maintenance" section.
J
Jerome RichSep 10, 2025
Why does the pressure fluctuate or drop on my Stihl RE 88?
- C
  Christopher McleanSep 10, 2025
  If you notice the pressure from your Stihl Pressure Washer fluctuating or dropping, several factors could be responsible. Ensure that the water supply is adequate by fully opening the water tap and complying with the permissible suction lift, especially in suction mode. Inspect the high-pressure nozzle in the spray head for dirt and clean it if necessary. Also, check the water intake strainer in the pump inflow for clogs and clean it. If the high-pressure pump is leaky or the valves are defective, have the machine checked by a servicing dealer.

Summary

Safety Precautions and Working Techniques

Before Starting Work

Key checks and connections to make before operating the machine.

Inspect the High-Pressure Cleaner

Important checks to ensure the machine is in safe working order.

Electrical Connection

Instructions and warnings for safely connecting the machine to the power supply.

During Operation

Important operating procedures and warnings during use.

After Finishing Work

Steps to take to safely shut down and complete work.

Maintenance and Repairs

Assembling the Unit

Fitting and Removing Spray Lance

Fitting and Removing High-Pressure Hose

Connecting the Water Supply

Water Hose Connection and Venting

Steps to connect the water hose and bleed air from the system.

Connection to Drinking Water Main

Connecting to Pressureless Water Supply

Connecting to Power Supply

Power Requirements and Socket Connection

Details on voltage, frequency, extension cords, and proper socket connection.

Switching On

Pre-Start Checks and Activation

Ensure water supply and hose are ready, then activate the machine.

Working and Detergent Use

Spray Gun Operation and Standby

How to use the spray gun safely and precautions for standby mode.

Switching Off

Storing the Machine

Maintenance Procedures

Routine Checks and Cleaning

Cleaning the High-Pressure Nozzle

Cleaning the Water Intake Screen

Minimize Wear and Avoid Damage

Stihl RE 88 Specifications

General

Maximum Pressure	120 bar
Water Flow Rate	350-520 l/h
Power Consumption	1.7 kW
Weight	8.9 kg
Hose Length	6 m
Max. Pressure	120 bar
Max. Water Temperature	40 °C
Mains Voltage	230 V
Power Source	Electric