15
7.
Trouble Shooting
Electric power can cause severe injuries. Defective electrical compo-
nents to be immediately replaced, possible causes for accidents to be
eliminated without delay. Any repair work must only be carried out by
qualified personnel.
Only original equipment expressively approved by the manufacturer to
be installed, as otherwise warranty and Declaration of Conformity will
expire, health and safety standards are not guaranteed.
During repair or maintenance work, unit to be disconnected from
electrical network.
Faiure Cause
Remedy
Engine does not start
- Emergency Stop switch engaged
- Low oil level
- Counter pressure too high
- Battery exhausted
- Ignition switch in pos. “Off/0”
- Choke open
- Release Emergency Stop switch
- Refill oil up to maximum
- Release unloader valve
- Charge battery
- Put ignition switch into pos.
“On/1”.
- Close choke. Check items under
“Engine stops”.
Engine trips
- No fuel.
- Low oil level.
- Fuel filter clogged.
- Sparking plug burnt.
- Fill fuel tank.
- Refill oil up to maximum
- Clean fuel filter.
- Replace sparking plug.
Pump pressure high
- Nozzle clogged
- Clean remove and nozzle.
Flush spray wand.
Operating pressure not achieved/
varies
- Air in unit
- Insufficient water supply
- Nozzle worn
- Incorrect nozzle
- Nozzle clogged
- Water strainer blocked
- Safety/control valve leaking
- Suction side of pump leaking
- Suction valves sticking
- Bleed unit
- Supply line to be min.
”
- Replace nozzle
- Install correct nozzle
- Remove/clean nozzle
- Clean filter
- Call service
- Tighten hose clamps
- Carefully loosen valves by
means of a screw driver, if
needed, remove and clean
valves.
Vibrations on high pressure hose
and spray pistol
- Air in unit
- Disconnect HP hose at
connection (11) and run machine
unless continuous pressure is
achieved.
Heavy vibrations on unit
- Plunger blocked
- Stop unit immediately,
call qualified service.
