6
Other steering when relative surface bite
dead
swing from side to side
Dismantle, repair
The steel ball in the steering valve body
fails and is blocked
Replacement spring
Steering gear reset failure, spring
breakage
Check piston seal ring and replace
Leakage in steering cylinder is too large
Adjust pressure and flow
There is air in the steering system
hydraulic line element
Use specified oil
Working oil level is too low, inhale air
replace
The shunt valve hole is blocked and the
spool is stuck
replace
Steering cylinder piston rod bent
exhaust
The spill
The joint was not pried tight
Pry tight
There are dirty joints between stator and
rear cover of valve body of steering gear
cleaning
Cylinder leakage
Check guide sleeve seal joint seal
Abnormal sound
Low oil level, hydraulic noise
Refueling and exhaust
Suction tank or oil filter blocked
Cleaning and replacement
(1) Common faults of lifting system and troubleshooting methods
fault
cause
maintenance
Lifting, falling is not
smooth, loud noise
The gap between the upper side roller of
the outer frame and the channel steel of
the inner frame is over 1mm
Reduce adjusting gasket
The gap between the lower side roller of
the outer frame and the channel steel of
the inner frame is over 1mm
Add adjusting gasket
The gap between the side roller of the
fork frame and the channel steel of the
inner door frame is over 1mm
Reduce adjusting gasket
The side roller shaft fastening bolt is
loose
fastening
There are broken objects in the channel
steel of sliding frame and inner door
frame
Yeah, oil on the tracks regularly
