1 697 090 700
2014-04-10
|
Robert Bosch GmbH
16 | VLS 5235 | Note on Troubleshooting
en
7.
Note on Troubleshooting
!
Should any faults occur which are not listed below, immediately de-energize the lifting platform, shut it down,
secure it against unauthorized use, and inform Bosch customer service or an authorized service outlet.
!
All repair work must be performed by Bosch customer service or an authorized service outlet. Only Bosch
genuine replacement parts may be used. The use of parts from other manufacturers will render the type
approval invalid.
7.1
Faults during runway operation
Fault
Possible cause
Remedy
No motor operation.
R
Power failure.
R
Synchronization control is deactivated.
R
Motor overheating, thermoswitch
in motor has cut out.
R
Control fuse/control electronics defective.
R
Check the power supply.
R
Check/correct the relative position of the runways.
R
Wait 10 minutes and try again.
R
Request customer service.
Motor operation but
runway not raised.
R
Vehicle too heavy.
R
Lack of fluid.
R
Manual lowering valve open.
R
Upper end position reached.
R
Hydraulic system defective.
R
Check whether the permissible load-bearing capacity
of the lifting platform has been exceeded.
R
Check the fluid level.
R
Close manual lowering valve by hand
(for details please contact Bosch customer service).
R
Request customer service.
Runway raises
too slowly.
R
Vehicle too heavy.
R
Intake filter blocked.
R
Hydraulic system defective.
R
Check whether the permissible load-bearing capacity
of the lifting platform has been exceeded.
R
Clean intake filter (service personnel).
R
Request customer service.
Runway lowers too
slowly or not at all.
R
Mode selector switch in incorrect position.
R
Detent locks are extended, runway is locked.
R
No vehicle on lifting platform.
R
Hydraulic system defective.
R
Rotate mode selector switch to the correct position.
R
Raise the runway slightly to retract the detent locks.
R
Request customer service.
Runway not
lowered fully.
R
"Foot protection" safety level (200 mm)
reached.
R
Press the "Lower" button again.
Noise during lifting
or lowering.
R
Incorrect hydraulic fluid with insufficient
lubrication.
R
Inadequate lubrication of
scissor sliding surfaces.
R
Check the fluid type.
(Use organic hydraulic fluid)
R
Lubricate the sliding surfaces.
R
Request customer service.
7.2
Faults during operation of auxiliary lift
Fault
Possible cause
Remedy
No motor operation.
R
Refer to information for runway
R
Refer to information for runway
Motor operation
but auxiliary lift
not raised.
R
Upper end position reached.
R
Vehicle too heavy.
R
Lack of fluid.
R
Manual lowering valve open.
R
Hydraulic system defective.
R
Check whether the permissible load-bearing capacity
of the lifting platform has been exceeded.
R
Check the fluid level.
R
Close manual lowering valve by hand
(for details please contact Bosch customer service).
R
Request customer service.
auxiliary lift not
lowered.
R
Pneumatic cylinder not released.
R
Hydraulic system defective.
R
Check compressed air supply.
R
Request customer service.
Noise during lifting
or lowering.
R
Incorrect hydraulic fluid with
insufficient lubrication.
R
Worn sliders at auxiliary lift.
R
Check the fluid type.
(Use organic hydraulic fluid)
R
Request customer service.
