11
(2) Regular inspection
(carried out by the qualified person)
PART
INSPECTION
METHOD
LIMIT/CRITERIA
FOR DISCARDING
REMEDY
1. Piston
Visual check
Oil leakage around
the piston
Exchange of piston
cup (see art. 10.3)
2. Screwing
Visual check
Oil leakage
Tighten screwing or
repair
3. Label – marking of
capacity on cylinder
Visual check
Illegible lifting
capacity
Repair or exchange
by the new one
4. All parts
Visual check
Worn or damaged
parts
Polluted parts
Replace by new part.
Dismantle, clean up
and assemble again
9 TROUBLSHOOTING
Possible malfunctions can be caused by the pump. Since pump is integral part of the
lifting complete we state the possible malfunctions caused by the pump.
SITUATION
TROUBLE CAUSE
REMEDY
1. During lifting the piston
moves very slowly or it does
not move at all. Drop of
piston cased by the load does
not occur.
Leakage of pump inlet valve
or forcing valve of pump or
piston cup of pump.
Struck piston.
Leakage caused by impurities
you can try to remove by
flushing of pump e.g. quick
pendulum movement of hand
lever.
If the leakage appears
henceforth, dismantle valves
and clean up carefully.
Exchange the rubber piston
cup (see art. 10.3)
Complete repair necessary.
2. After finishing of lifting
self-acting drop of piston
occur.
Leakage of drain valve.
Tighten drain valve.
If the fault lasts, dismantle
valve and clean up.
10 MAINTENANCE
10.1 SAFETY PRINCIPLES
! WARNING
Maintenance can be carried out only by qualified persons trained in safety and
maintenance of these cylinders.
ALWAYS
use only original parts supplied by the manufacturer.
It is not permitted to perform repairs and maintenance the other way then prescribed
by the manufacturer. It concerns especially the forbiddance of using unoriginal parts or
carrying out modifications on the product without any approval of the manufacturer.
