wsm B2420 Workshop Manual page 230

B2420, WSM
1. TROUBLESHOOTING
Symptom
Excessive Steering
Wheel Play
Tractor Pulls to Right
or Left
Front Wheels
Vibration
Hard Steering
Low Operating
Pressure
Steering Wheel Does
Not Return to Neutral
Position
Steering Force
Fluctuates
Noise
Probable Cause
Backlash between sector gear shaft and rack
(piston) too large
Steering linkage worn
Sector gear shaft worn
Tire pressure uneven
Steering wheel play too small
Improper toe-in adjustment
Steering linkage worn
Improper toe-in adjustment
Transmission fluid improper or insufficient
Oil leak from pipe joint
Hydraulic pump malfunctioning
Improper relief valve adjustment
Relief valve malfunctioning
Valve housing and sleeve malfunctioning
Seals in the steering gear box damaged
Backlash between sector gear shaft and rack
(piston) too small
Air in the hydraulic pipes
Hydraulic pump malfunctioning
Improper relief valve adjustment
Relief valve malfunctioning
Seals in the steering gear box damaged
Rack (piston) malfunctioning
Oil leak from pipe or pipe broken
Valve housing and sleeve jammed
Valve housing oil seal damaged
Insufficient oil
Insufficient bleeding
Valve housing and sleeve malfunctioning
Insufficient oil
Air sucked in pump from suction circuit
Pipe deformed
Adjust
Replace
Replace
Adjust
Adjust
Adjust
Replace
Adjust
Change
Retighten
Replace
Adjust
Replace
Replace
Replace
Adjust
Air vent
Replace
Adjust
Replace
Replace
Replace rack (piston)
assembly
Replace
Repair or Replace
Replace
Replenish
Bleed
Replace
Replenish
Repair
Replace
7-S1
STEERING
Reference
Solution
Page
7-S16
–
7-S13
G-46
–
6-S4
–
6-S4
G-8
–
7-S8
7-S6
7-S6
7-S14
7-S15
7-S16
–
7-S8
7-S6
7-S6
7-S15
7-S15
–
7-S14
–
G-8
–
7-S14
G-8
–
–
9Y1210436STS0001US0
KiSC issued 06, 2012 A