Troubleshooting Chart - Vaderstad Rapid RDA 400S Original Instructions Manual

6.2

Troubleshooting chart

The Control Station does not op-
erate when the main switch is
switched on!
The bout marker(s) cannot be
unfolded!
The bout marker(s) cannot be
retracted!
27.06.2011
ver.2
- See "6.1.1 Electric fault" on page 109.
- Check according to "6.1.1 Electric fault" on page
109.
- Check according to "6.1.2 Hydraulic fault" on page
109.
- Check whether one of the bout marker indicator lamps
on the Control Station lights.
- Check whether the machine is in the low-lift mode.
(For safety reasons the bout markers cannot be un-
folded in the low-lift mode or at a higher height.)
- Check the low-lift switch. Disconnect the switch con-
nector from the Workstation and verify correct bout
marker operation.
- Check the wing unfolding switch. This switch blocks
the current signal from the bout marker valves when
the wings of the drill are retracted. This prevents a
bout marker from being unintentionally unfolded in
this position. Disconnect to the switch connector from
the Workstation and verify correct bout marker oper-
ation.
- Check the current supply to the two electric valves (A)
and (B) in the centre of the top surface of the valve
block. See "6.1.3 Hydraulic electric valves" on page
110. The bout marker valve(s) should receive current
when the corresponding indicator lamp lights.
- This is probably caused by contamination in an elec-
tric valve. Please note that contamination that causes
faults such as this often is not visible to the naked eye.
In this case, replacement of the electric valve is rec-
ommended.
- It should always be possible to retract both bout mark-
ers no matter which setting and indication are ob-
served on the Control Station and also when the
Control Station has been switched off.
RDA 400S
113