Unitor HPC Extreme 330, Руководство пользователя

Страница: 21 / 23

Page 21 of 23
Trouble Shooting
Electric power can cause severe injuries or death. Defective electrical
components 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 delivered, respectively 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.
Malfunction Cause Remedy
Electric motor does not start. - Machine not connected to power
supply.
- Fuse burnt.
- Low water cut-out tripped.
- EMERGENCY STOP switch (2a)
locked
- Phase missing.
- Ensure correct power supply.
- Phase to be mounted as per electric
wiring diagram.
- Ensure sufficient water supply.
- Unlock EMERGENCY STOP (2a) by
slightly turning clockwise.
- Replace fuse. If it burns again, call
qualified service.
Electric motor suddenly stops,
motor protection switch trips. - Poor water supply
- Fuse burnt.
(phase missing).
- Low/wrong voltage. - Eliminate cause and re-start machine
with ON/OFF switch.
- Replace fuse. If it burns again or motor
is noisy, call qualified service.
- Ensure correct power supply.
Electric motor hums upon start-up. - Fault in electrical network.
- Fuse burnt.
(phase missing). - Check phases in electric plug.
- Replace fuse. If it burns again, call
qualified service.
Operating pressure not achieved/varies
-
Model 330 : rotary valve open
- Nozzle worn.
- Incorrect nozzle.
- Nozzle partly clogged.
- Filter cartridge clogged.
- Pump valves sticking/dirty.
- Unloader valve leaking internally.
- Close valve of double lance.
- Replace nozzle.
- Install correct nozzle. (see tech. data)
- Remove/clean/re-install nozzle.
- Replace filter cartridge.
- Remove/clean/re-install valves.
- Call qualified service.
Vibrations on high pressure hose and
spray pistol - Air in unit
- Pump valves sticking/dirty. - Bleed unit.
Open pressure regulating handle and
pistol, until continuous pressure is
reached.
- Remove/clean/re-install valves.