46
Faults indicated by the D-RC-LP 32
remote control unit
– The most important faults are shown on the remote control unit
display panel.
WARNING
Do not operate the equipment when parts of it are damaged or when
the operating controls do not function faultlessly. The hydraulic unit
should be repaired at a Hilti service centre if found to be faulty.
Fault checklist and solutions
Problem
Symbol on
Possible cause
Action to be taken
remote control unit
Emergency OFF lights.
Emergency OFF
– Disenage emergency OFF button on RC-LP 32
Motor doesen’t start
button pressed in
remote control unit.
– Disenage emergency OFF button on LP 32 unit.
Oil level.
Oil level in hydraulic
– Top up oil (type HVLP 46) and check
Unit switches off.
unit too low
oil level at sight glass.
Power supply
– Mains voltage fault
– Site power supply should be checked
warning lamp lights.
by the site electrician.
Motor switches off.
– Failure of one phase
– Check the mains fuse.
Power supply
– Extension cable too long, with
– Set current control knob (amps) slightly lover.
warning lamp blinks
inadequate conductor cross section – Use extension cable with suitable cross
slowly.
– Mains voltage fault
section (see table, page 28).
Motor runs again.
Zero position
The corresponding speed control
– First, set the speed control knob and all knobs
warning
knob is not set to the zero position.
on the remote control unit, with the execption
lights up.
of the current control knob (amps),
to the zero or neutral position.
Water cooling
– Inadequate system cooling, i.e.
– Increase cooling water flow rate,
warning lamp lights,
too little water or water too warm
see «cooling» page 39.
1
st
advance warning
– Cooling water temperature: 20°C
– Use Y-piece with water valves: more water
at the hydraulic unit, less at the saw head.
Water cooling
– Machine is too warm
– The operator must react quickly, taking
warning lamp blinks
– Inadequate cooling:
the action described above, otherwise
slowly
too little water or water too warm
the hydraulic unit will switch itself off.
2
nd
advance warning
Water cooling
– The machine has overheated.
– Set control switch on hydraulic unit too
warning lamp blinks
– The machine has switched
«OFF» (O)
and then to
«ON» (I)
again.
rapidly and oil
– itself off.
– Allow the hydraulic unit to run again with
lamp lights
maximum cooling water until all warning
simultaneously.
lamps extinguish.
– Normal operation may continue when
the warning lamps have extinguished.
– Note: If, in this situation, the machine is not
cooled adequately, it will switch itself off again
and then cannot be restarted for a period
of up to two hours.
Although the control switch
– Fault in at least two or possibly all
– Check the mains fuses at the distribution box /
on the hydraulic unit its in the
of the phases in the mains supply
switch on.
«ON» (I)
position, no lamps light
– The site power supply should be checked by
on the remote control unit.
the site electrician.
– Check extension cables and plugs / sockets
for faults, fix loose contacts.
Service indicator
– After 200 operating hours
– Return the unit to Hilti for servicing
lights
(inspection and oil change)
9.1
9. Troubleshooting
D-RC-LP 32
Start
Ampere
II
I
32
63
45
100
1600 1200 1000 900 800
mm
80
60
40
Printed: 08.07.2013 | Doc-Nr: PUB / 5069667 / 000 / 01
Summary of Contents for D-LP 32
Page 1: ...Operating instructions en D LP 32 DS TS 32 Printed 08 07 2013 Doc Nr PUB 5069667 000 01 ...
Page 20: ...20 4 Technical data Rating plates 4 7 Printed 08 07 2013 Doc Nr PUB 5069667 000 01 ...
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