LS tractor MT2 25S, Operator'S Manual

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5 - 58
System Faults Possible causes Solutions
Steering
System
Hydraulic steering
system does not work.
▲
Pump worn or part damaged
▲
Steering unit damaged or worn
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Oil leakage by steering
cylinder piston seal damaged or
worn
▲
Oil leakage by pipe damage
▲
Repair or replace
▲
Repair or replace
▲
Repair
▲
Repair or replace
Hard to operate the
steering wheel.
▲
Steering unit
- Steering unit spline and column
spline does not aligned
- Spool and sleeve damaged by
foreign material
- Excessive tightening torque of
end cap bolt
▲
Pump
- Low speed
- Wearing, failure
▲
Relief valve
- Valve spool clogged
- Setting pressure too low
▲
- Check mounted condition of
steering unit and column
- Replace
- Apply regular torque
▲
- Adjust RPM or Repair
- Repair or replace
▲
- Repair or replace
- Reset or adjust
Cylinder does not work
smoothly as steering
wheel movement
▲
Air in steering line if not used
for a long time
▲
Air in suction pipe
▲
Piston seal damaged
▲
Bleed air
▲
Repair
▲
Replace
Steering wheel turns to
the opposite direction.
▲
Bad assembly of steering gear
▲
Bad assembly of steering hose
▲
Repair
▲
Repair
Oil leakage of steering
pump, steering unit,
cylinder and fittings
▲
Seal damaged
▲
Replace seal
Abnormal noise
▲
Lack of oil
▲
Exceeding resistance of
suction line
▲
Air in system
▲
Aid oil
▲
Replace filter
▲
Bleed air