benza BZ20915 Use And Maintenance Manual page 29

5 The forks towers
without the release
valve working.
*NOTE: DO NOT ATTEMPT TO REPAIR THE PALLET TRUCK UNLESS YOU ARE
TRAINED AND AUTHORIZED TO DO SO.
 The impurities in the oil
cause the release valve to
be unable to close tight.
 Some parts of hydraulic
system is cracked
bored.
 Air come into the oil.
 Sealing parts worn
damaged
 The adjusting nut (D615)
or the screw (D133) is not
in the correct position
4
 Replace with new oil
 Inspect and replace the
or waste parts
 Banish the air.(See item
4.2)
or  Replace with the new one
 Adjusting the nut (D615) or
the screw (D133). (See
item 3.2)