18
MAN 9050466 EN V1
P. Lindberg A/S
Sdr. Ringvej 1
www.p-lindberg.dk
Tel.: +45 70212626
6600 Vejen, Denmark
E-mail: [email protected]
Troubleshooting
No.
Problem
Cause
Solution
1
Forks do not lift, do not
lift completely or lift
slowly.
a)
Insufficient or contaminated
hydraulic oil.
b)
Control handle needs to be
adjusted.
c)
Load is too heavy.
d)
Temperature is too low and the
hydraulic oil has become thick.
e)
Air in the hydraulic oil.
a)
Fill or replace hydraulic
oil.
b)
Follow the procedure for
adjusting the control
handle.
c)
Remove the load.
d)
Move the pallet truck to a
warmer place.
e)
Vent the hydraulic pump.
2
Forks do not lower or
do not lower
completely.
a)
Obstacle under the pallet truck,
in the fork mechanism, etc.
b)
Control handle needs to be
adjusted.
c)
Fork has been in the raised
position for a long time and the
piston rod is rusted.
d)
Piston rod or pump deformed
due to overload or uneven load.
a)
Carefully remove the
obstacle.
b)
Follow the procedure for
adjusting the control
handle.
c)
When the equipment is
not in use, keep the forks
in the lowest position and
keep the piston rod
lubricated.
d)
Replace piston rod or
pump.
3
Forks lower without
the control handle
being in the lowering
position.
a)
Impurities in the oil prevent the
valve from closing completely.
b)
Hydraulic components or seals
are cracked or worn.
c)
Control handle needs to be
adjusted.
a)
Change the hydraulic oil.
b)
Check and replace as
necessary.
c)
Follow the procedure for
adjusting the control
handle.
4
Oil leak
a)
Worn or damaged seals.
b)
Other cracked or worn parts.
a)
Replace seals.
b)
Replace any damaged
parts.
