Troubleshooting - Kubota B1830 Workshop Manual

B1830,B2230,B2530,B3030, WSM

1. TROUBLESHOOTING

POWER STEERING
Symptom
Front Wheels
Vibration
Hard Steering
Low Operating
Pressure
Steering Wheel Does
Not Return to Neutral
Position
Steering Force
Fluctuates
Noise
INDEPENDENT PTO
Symptom
PTO Clutch Slip
PTO Shaft Does Not
Rotate
PTO Clutch
Operating Pressure is
Low
Probable Cause
Air in power steering circuit
Transmission fluid improper or insufficient
Oil leak from pipe or hose joint
Hydraulic pump malfunctioning
Improper relief valve adjustment
Relief valve malfunctioning
Seals or O-rings in the steering controller
damaged
Air in the hydraulic pipes
Hydraulic pump malfunctioning
Improper relief valve adjustment
Relief Valve malfunctioning
Seals or O-rings in the steering controller
damaged
Oil leak from pipe or hose
Pipe or hose broken
Power steering controller damaged
Insufficient oil
Insufficient bleeding
Steering controller malfunctioning
Insufficient oil
Air sucked in pump from suction circuit
Pipe deformed
Probable Cause
Operating pressure is low
Independent PTO control valve malfunctioning
Clutch disk or drive plate excessively worn
Deformation of piston or return plate
PTO clutch malfunctioning
PTO propeller shaft coupling disengaged
Transmission oil improper or insufficient
Relief valve poppet malfunctioning
Bleed air
Change
Retighten
Replace
Replace
Replace
Replace
Air vent
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replenish
Bleed
Replace
Replenish
Repair
Replace
Adjust
Repair or replace
Replace
Replace
Repair or replace
Engage
Replenish or change
Adjust or replace
8-S1
HYDRAULIC SYSTEM
Reference
Solution
Page
7-S4
8-S13
7-S5
8-S11
7-S4,
7-S6
7-S6
8-S12
7-S4
8-S11
7-S4,
7-S6
7-S6
8-S12
7-S5
7-S5
7-S6
8-S13
7-S4
7-S6
8-S13
–
7-S5
Reference
Solution
Page
8-S8
8-S8
3-S61
3-S61
3-S54,
3-S61
–
8-S13
8-S8
KiSC issued 05, 2012 A