Belarus 1025/1025.2/1025.3
Section I. Possible malfunctions
I12
Malfunction, symptom
Correction method
Hinge with load lifts slowly, after diesel shut down lowers visibly slowly on its own,
frequent position corrections, possible pressure “hang up”.
Rapture of rubber sealing of governor-
Dismount governor-distributor, replace
distributor
rubber sealing for new one
The pump is not relieved in the whole range of hinge travel with load in the position
control mode, when the hinge reaches given position
With small movements towards lowering of
position handle, the pump is relieved for
short time. With diesel shut down air
tightness is normal —
•
Jamming or loss of air-tightness of
Dismount governor-distributor, pull out and
valve-accelerator
wash by-pass valve.
If necessary, caulk valve ball to its seat
When moving position handle towards
lowering, the pump is not relieved, with
diesel shut down air-tightness is normal —
•
Loss of air-tightness of pressure
Unscrew coned plug on the upper governor
adjusting valve.
surface, remove spring, caulk valve ball to
its seat
Hinge with load lowers a little all by itself after reaching position given by position
handle (hinge “slump”)
Loss of air-tightness of anti-slump valve
Dismount governor-distributor, unscrew plug
of the anti-slump valve, remove the spring,
caulk the ball to its seat.
Position of the position handle on figures 1 and 9 doesn’t correspond to transport and
extreme bottom position of the hinge
Adjustment of position steel rope in the
By rotating nuts, fixing position of steel rope
drive is disturbed
to the arm in the panel, or the arm on the
hydraulic lift, obtain matching of
corresponding positions of handles and
hinge.
Hinge without load doesn’t lift, or lifts with jerks, with distributor switched on the
pump “screams”
Insufficient oil in the hydraulic system
Check oil in the oil tank, top it up, if
necessary
Summary of Contents for 1025 2008
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