![probst 5220.0011 Manual Download Page 39](http://html1.mh-extra.com/html/probst/5220-0011/5220-0011_manual_1608367039.webp)
Maintenance
JUMBO-BV-VARIO-B
V2
26/07/16
38 / 40
Engine is defective
Check the engine/call customer service
Petrol engine goes out and
immediate re-starting is not
possible
Gasoline supply interrupted
Check gasoline lines and fuel level in tank.
Ignition coil is defective
Check ignition coil and if necessary
exchange.
Device just wont work/ or
no Vacuum available
seal
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.
vacuum pipe
Check the fitting that interfaces the
vacuum pipe to the plate and check that it
is fully tightened and has not come loose.
air filter and the fittings
Check the air filter and the fittings such as
pipe clips etc, and make sure they are
tightly sealed.
pipes to the vacuum pumps
Check all pipes to the vacuum pumps are
not damaged.
foreign bodies
Check that there is a vacuum or pressure
on the pumps and that they have not been
damaged by the ingression of foreign
bodies.
Load cannot be sucked.
Prescribed negative
pressure cannot be
achieved no more.
Negative pressure
diminishes itself too fast,
when switching the device
off.
Leakage at vacuum plate by deposited
dirt between rubber seal and suction
plate.
Rubber seal wore or porously (aging
after effect of UV radiation)
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.
For repair at the lifting hose unit, the operating valve unit, petrolengine see the references in the respective
operating instructions.
7.4
Repairs
●
Only persons with the appropriate knowledge and
ability are allowed to repair the device
●
Before the device is used again, it has to be checked
by an expert.
Attention
For all repairs the device must be completely shut down!