Scheren-Gabelhubwagen SHW M
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Ausgabe10/2007
157619
Faults
No.
Fault
Cause
Rectification of fault
1
The forks do not reach the
maximum height.
-Too little hydraulic oil
Add more oil.
2
The forks cannot be
raised.
-Too little hydraulic oil
-The oil is contaminated.
-The relief valve is not set correctly
-Air bubbles in the hydraulic oil.
Add more oil.
Carry out oil change.
Set adjusting screw
Remove air bubbles
3
The forks cannot be
lowered.
-A component is damaged or deformed by
inappropriate loading.
-The adjusting screw (140H) is incorrectly
set
-Repair or change the component.
-Set the adjusting screw (140H).
4 Leakages
-Seals worn or damaged.
-Some components might be worn or
damaged.
-Replace seals.
-Check and replace.
5
The forks lower
unintentionally.
-Impurities in the oil are blocking the relief
valve
-Air bubbles in the hydraulic oil.
-Seals worn or damaged.
-Relief valve is not set.
-Change oil.
-Remove air bubbles – replace seals.
-Set the adjusting screw (140H).
6
The forks judder
-Air bubbles in the hydraulic oil.
-Removed air bubbles in laden state
Maintenance and servicing
Important: The pallet truck must only be serviced by authorized staff
Hydraulic oil
The total capacity of the oil tank is approx. 0.3l. The oil level must be checked at intervals of 6 months. It is at the
optimum level when with forks lowered there is 5 mm of air between the surface of the oil and the lid of the oil tank.
To fill up use an oil according to the following data:
Temperature Oil
-20
℃
~+40
℃
Hydraulic oil according to ISO VG 46
Removing air bubbles in the hydraulic system
Changing the seals can lead to air bubbles in the hydraulic system. To remove these, put the switch handle (H106)
in the LOWER position and then move the tow handle several times up and down.
Moving parts
The moving components of the pallet truck must be checked regularly for ease of movement and if required
relubricated with commercially-available lubricating grease.
In the event of damage or particular incidents that can influence the bearing capacity, the device is to be subjected
to a test by a qualified person.
