Stihl RB 302, Instruction Manual

Page: 28 / 180

RB 302, RB 402 PLUS
English
26
Troubleshooting
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
Cause Remedy
Engine does not start when switched
on
No fuel in tank Open the fuel cock
Refuel
1)
Shortage of oil in engine Add oil
1)
Pump has frozen Thaw out machine
Pump is blocked Have the machine checked by a servicing
dealer
2)
Pressure fluctuates or drops Speed control on engine or spray gun not set
correctly
Adjust speed control
Shortage of water Open water tap completely
Comply with permissible suction lift (suction
mode only)
check diameter and length of intake hose
Engine speed too low Have the machine checked by a servicing
dealer
2)
Water intake strainer in pump inflow clogged Clean water intake screen – see
"Maintenance"
Air in system Vent system by actuating the spray gun
several times at short intervals
High-pressure nozzle clogged / defective Clean nozzle – see "Maintenance"
replace nozzle
1)
See engine instruction manual
2)
STIHL recommends STIHL servicing dealers