probst VAKUUM-POWER-HANDY VPH-100 Betriebsanleitung Seite 53

Maintenance and care
A vacuum of - 0,5 bar cannot be
achieved.
VPH just wont work/ or no
Vacuum available
Load cannot be sucked.
Prescribed negative pressure
cannot be achieved no more.
Negative pressure diminishes
itself too fast, when switching
the device off.
52710008 / 51720009
The item to be lifted has splits, recesses
or is porous.
The foam rubber is damaged.
The pressure gauge is faulty.
The hose ors screws are leaky.
Battery
value
seal
vacuum pipe
air filter and the fittings
ON / OFF switch
wires on solinoid valve
short circuit on solinoid
pipes to the vacuum pumps
foreign bodies
Leakage at vacuum plate by deposited
dirt between rubber seal and suction
plate.
Rubber seal wore or porously (aging
after effect of UV radiation)
The item is not suitable to be lifted with the
device
Replace the foam rubgber.
Replace the pressure gauge.
Replace the relevant parts.
Check the battery is fully charged
Check the fuse is of the correct value ( 8amp )
and is not blown
Check the seal around baseplate, if possable
remove the seal and clean around the edge of
the plate, and in the groove of the seal, but do
not glue the seal on.
Check the fitting that interfaces the vacuum
pipe to the plate and check that it is fully
tightened and has not come loose.
Check the air filter and the fittings such as pipe
clips etc, and make sure they are tightly sealed.
Make absolutely sure that the ON / OFF switch
is working ok.
Check the wires on the solinoid valve are
connected ok.
Check the diode on the solinoid ( 1N4001 etc )
has not gone short circuit, you can remove this
completely or just cut it out, Do not replace this
component
Check all pipes to the vacuum pumps are not
damaged.
Check that there is a vacuum or pressure on the
pumps and that they have not been damaged
by the ingression of foreign bodies.
Remove rubber seal from suction plate.
Clean suction plate and slot in rubber seal.
Draw up and fasten rubber seal on suction plate
again.
If necessary exchange rubber seal.
V6
21 / 26
GB