probst TM-D-A Betriebsanleitung Seite 39

Maintenance and care
6.2 Trouble shooting
Malfunction
the mast can not be
aligned
Boom swings in the
wrong direction
Negative pressure of -0.42
bar is not reached
No vacuum present /
device does not work
Load can not be sucked
prescribed negative
pressure can no longer
be achieved
Negative pressure
dissipates too quickly
when the device is
switched off
For troubleshooting the lifting unit/operator unit, diesel engine (HATZ) or crawler stacker (Hinowa),
follow the instructions in the respective operating manual.
52220015 / 52220015 -150 / 52220015-200 / 52220015-250
Cause
the hydraulic system is leaking
the hydraulic cylinders do not hold the
pressure
the valve has a malfunction
Cable of the inclination sensor is
defective or not connected
Swivel range incorrectly set
Workpiece has cracks, gaps or is
porous
Sealing lip of the suction plate is
damaged
Pressure gauge is defective
Hose, fittings leaking
Sealing rubber
Control connection
Air filter
Lines
Foreign body
Leakage at suction plate due to dirt
deposited between rubber seal and
suction plate
Sponge rubber seal worn or porous
(aging after exposure to UV radiation).
Retighten connections and screw connections
Replace the gasket sets in the cylinders
Check and clean valve, replace if necessary
Replace cable or connect correctly
Set the swivel range correctly
Workpiece not suitable for suction with this device
Replace sealing lip
Replace pressure gauge
Replace components
Check sealing rubber around suction plate
If necessary, clean sealing rubber in the edge
area; clean groove
Do not stick sealing rubber to suction plate
Check connection between vacuum hose and
suction plate, connection must be firmly tightened
Check air filter, connections hose clamps etc. and
make sure all are well fastened
check all vacuum pump lines for damage
Check that the cables do not rub against the
housing
Check whether there is a vacuum at the vacuum
pump and no foreign bodies have been sucked
in.
Remove the rubber seal from the suction plate
Clean suction plate and slot in rubber seal
Replace the rubber seal on the suction plate and
fasten it in place.
Replace rubber seal if necessary
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Remedy
GB