Troubleshooting - Kubota B1830 Workshop Manual

B1830,B2230,B2530,B3030, WSM

1. TROUBLESHOOTING

Symptom
Cannot Be Steered
Hard Steering
Steering Force
Fluctuates
Steering Wheel Turns
Spontaneously When
Released
Front Wheels Wander
to Right and Left
Wheels Are Turned to
a Direction Opposite
to Steering Direction
Steering Wheel Turns
Idle in Manual
Steering
Noise
Oil Temperature
Increases Rapidly
Probable Cause
Steering controller malfunctioning
Pipe broken
Power steering oil improper
Hydraulic pump malfunctioning
Steering controller malfunctioning
Oil leak from pipe joint
Improper relief valve pressure
Relief valve malfunctioning
Air in the hydraulic pipes
Steering controller malfunctioning
Air sucked in pump due to lack of oil
Air sucked in pump from suction circuit
Steering controller malfunctioning
Steering controller malfunctioning
Air sucked in pump due to lack of oil
Air sucked in pump from suction circuit
Insufficient bleeding
Cylinder malfunctioning
Improper toe-in adjustment
Tire pressure uneven
Power steering hoses connected in reverse
Insufficient bleeding
Air sucked in due to lack of oil
Air sucked in pump due to lack of oil
Air sucked in pump from suction circuit
Pipe deformed
Steering controller (relief valve) malfunctioning
Replace
Replace
Change with specified
oil
Replace
Replace
Retighten pipe joint
Check and replace
Replace power
steering controller
Bleed air
Replace
Replenish
Repair
Replace
Replace
Replenish
Repair
Bleed air
Repair or replace
Adjust
Inflate
Repair
Bleed air
Replenish
Replenish
Repair
Replace
Replace
7-S1
STEERING
Reference
Solution
Page
7-S6
7-S5
G-8
8-S11
7-S6
7-S5
7-S4,
7-S6
7-S6
7-S4
7-S6
G-16
–
7-S6
7-S6
G-16
–
7-S4
7-S8
6-S4
G-66
7-S4
7-S4
G-16
G-16
–
7-S5
7-S6
9Y1210003STS0001US0
KiSC issued 05, 2012 A