Vaderstad RAPID RDA 400 S Instructions Manual page 87

The drill can be raised although
the lift stop is engaged!
If the lift stop valve does not receive
current:
If the lift stop valve receives cur-
rent:
The drill cannot be raised and/or
lowered!
If the drill cannot be raised:
The Control Station generates an
alarm of too low or too high fan
speed!
Hydraulic fan:
Ver.3 29.06.2007
- Check whether the magnetic valve (C) on the valve
block receives current. See Hydraulic electric valves
under "5.1.3 Hydraulic electric valves" on page 83.
- Check the low-lift switch as explained above.
- See "5.1.1 Electric fault" on page 82.
- See "5.1.2 Hydraulic fault" on page 82.
- Check whether the lift stop or low-lift mode has been
set.
- See "5.1.2 Hydraulic fault" on page 82.
- Check whether the lift stop or low-lift mode has been
set.
- See "5.1.2 Hydraulic fault" on page 82.
- Check whether the lift stop valve (C) receives current
as a result of a shortcircuit or another fault. See Hy-
draulic electric valves under "5.1.3 Hydraulic elec-
tric valves" on page 83.
- Switch off the Control Station and check whether the
drill can be raised. If it is still not possible to raise the
machine, the fault can be found in the hydraulic sys-
tem.
- Check whether a shortcircuit has occurred in the cable
harness or the intermediate cable and which function
is affected.
- NOTE! The alarm is not generated if the fan hose has
come loose or the ejector elbows are not in the correct
positions.
- Check whether the hydraulic hoses are correctly con-
nected and that the hydraulic connector is pressurized.
- Check the programming of the Control Station.
- Have the pressure and flow been correctly set on the
tractor (130 bars and at least 35 l/min.)? Has the flow
valve of the tractor been correctly set?
- Has the fan speed regulator been correctly set? (Op-
tional; this is used when the tractor does not feature an
inherent flow regulator device.)
RDA 400-450 S
87