5-11
Problem
Abnormal sound heard when
steering wheel is turned fully
Valve
Â
Faulty. (Valve fails to open.)
Piping
Â
Pipe(from pump to power steering
cylinder) dented or clogged.
Â
Adjust valve set pressure and check
for specified oil pressure.
Â
Repair or replace.
C
C
ause
Remedy
Piping makes abnormal
sounds.
Oil pump
Â
Lack of oil.
Â
Oil inlet pipe sucks air.
Â
Insufficient air bleeding.
Â
Add oil.
Â
Repair.
Â
Bleed air completely.
Valve or valve unit makes
abnormal sounds.
Oil pump
Â
Oil inlet pipe sucks air.
Valve
Â
Faulty. (Unbalance oil pressure)
Piping
Â
Pipe(from pump to power steering)
dented or clogged.
Â
Insufficient air bleeding.
Â
Repair or replace.
Â
Adjust valve set pressure and check
specified oil pressure.
Â
Repair or replace.
Â
Bleed air completely.
Insufficient or variable oil flow.
Â
Flow control valve orifice clogged.
Â
Clean
Insufficient or variable dischar-
ge pressure.
Piping
Â
Pipe(from tank to pipe) dented or
clogged.
Â
Repair or replace.
Steering cylinder head
leakage (Piston rod)
Â
Packing foreign material.
Â
Piston rod damage.
Â
Rod seal damage and distortion.
Â
Chrome gilding damage.
Â
Replace
Â
Grind surface with oil stone.
Â
Replace
Â
Grind
Steering cylinder head thread
(A little bit leak is no problem)
Â
O-ring damage.
Â
Replace
Welding leakage
Â
Cylinder tube damage.
Â
Tube replace.
Rod
Â
Tube inside damage.
Â
Piston seal damage and distortion
Â
Grind surface with oil store.
Â
Replace
Piston rod bushing inner
diameter excessive gap
Â
Bushing wear.
Â
Replace
Steering wheel turns unstea-
dily.
Steering system makes abn-
ormal sound or vibration.
Â
Lockout loosening.
Â
Metal spring deteriorated.
Â
Gear backlash out of adjustment.
Â
Lockout loosening.
Â
Air in oil circuit.
Â
Retighten.
Â
Replace.
Â
Adjust.
Â
Retighten.
Â
Bleed air.