Troubleshooting - Stihl RB 800 Notice D'emploi

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Troubleshooting

High-pressure pump
Before starting any work on the machine, switch off the engine, turn off the water supply and actuate the spray gun until the pres -
sure has been relieved.
Fault
No or not enough water exits at the
high-pressure nozzle
Pressure drops or fluctuates
1)
STIHL recommends STIHL servicing dealer
2)
Not RB 200, RB 400 - according to version
26
Cause
Water hose kinked
High-pressure hose kinked
Insufficient water
Motor speed too low
Water intake screen at inlet of high-pressure
pump is clogged
Air in system
High-pressure pump draws air
High-pressure nozzle clogged / worn
Valves of the high-pressure pump are worn
Seals in the high-pressure pump are worn
Pressure/quantity adjustment
High-pressure pump has frozen
Water temperature too high
Remedy
Remove the kink
Replace the high-pressure hose
Open water tap completely
Check diameter and length of intake hose
Run the engine at full throttle
Have the engine checked by a servicing
1)
dealer
Clean the water intake screen; see
"Maintenance"
Vent system by actuating the spray gun
several times at short intervals
Check all connections in the water flow,
seal is necessary
Clean the high-pressure nozzle; see
"Maintenance"
Replace the high pressure nozzle
Have the high-pressure pump repaired by a
servicing dealer
Have the high-pressure pump repaired by a
servicing dealer
2)
defective Have the high-pressure pump repaired by a
servicing dealer
Thaw out high-pressure pump
Observe the permissible water tempera -
ture, see "Technical data"
1)
1)
1)
RB 800