GB
GB-4
FAULT FINDING
Symptoms
Cause
Corrective action
Machine does not start
Ignition switch is not “ON”.
Turn the switch to "ON".
No petrol in the tank.
Refill
Petrol too old.
Replace
Petrol cock not in extreme
Turn cock to extreme right.
right pos.
Too much fuel in the engine.
Wait 5 min., then restart as usual.
Too little motor oil.
Refill oil.
On spark plug worn/ defective.
Check electrode gap/ replace.
The machine
Check points under preceding
Take necessary action.
suddenly stops.
paragraph.
Carbonised spark plug.
Clean spark plug.
Petrol filter clogged up.
Empty petrol tank and clean filter.
Too high pump pressure.
Pressure nozzle partly blocked.
Dismantle and clean the nozzle. Flush
the pistol through before remounting.
The cleaner does not run
Air in the system.
Open the pressure regulation handle
on max. pressure/
and activate the pistol. Let the
pressure fluctuates.
machine run until stable pressure is
achieved.
Too little water.
The supply hose too small - diameter
should min. 3/4”.
Clean suction filter.
Open water handle.
Worn pressure nozzle.
Replace nozzle. Note correct type
(see Technical Data).
Wrong pressure nozzle.
Replace nozzle. Note correct type
(see Technical Data).
Pressure nozzle partly clogged,
Dismantle and clean the nozzle.
machine runs in by-pass.
Suction side not tight.
Tighten clamp on suction hose.
High pressure hose and
Air in the system.
Open the pressure regulation handle,
pistol are shaking.
activate the pistol. Let the machine run
until stable pressure is achieved.
By-pass valve “knocks”
Pressure nozzle partly clogged.
Dismantle and clean.
or the pressure gauge
Water filter clogged.
Dismantle and clean (see
oscillates with open pistol.
Maintenance).
Suction hose not tight/torn.
Tighten/replace clamp on hose.
No detergent supply.
Detergent tank empty.
Refill.
Dosing valve and/or regulation
Open.
handle closed.
Detergent filter clogged.
Clean filter.
Turbo Laser filter clogged.
Clean filter (see Maintenance).
Pre-nozzle blocked.
Dismantle and clean pre-nozzle.
Low pressure nozzle in Turbo
Dismantle and clean.
Laser blocked.
Safety valve starts to
Pressure nozzle partly clogged.
Dismantle and clean pressure nozzle.
function or the machine
Pre-nozzle partly clogged.
Dismantle and clean pre-nozzle.
runs at too high pressure.
Wrong pressure nozzle.
Replace nozzle (see Technical Data).
The nozzle does not
Turbo Laser dirty.
Dismantle and clean Turbo Laser.
oscillate.
Wrong pressure nozzle.
Replace nozzle (see Technical Data).
Turbo Laser leaks.
Leakage may rectify itself by further use.
Defective gaskets.
Replace gasket (service kit)
