Troubleshooting - Kubota WSM B1710 Workshop Manual

B1710 · B2110 · B2410 · B2710, WSM

1. TROUBLESHOOTING

Symptom
Implement Does Not
Rise (No Noise)
(Noise)
Implement Does Not
Reach Maximum
Height
Implement Does Not
Lower
Implement Drops by
Its Weight
Implement Hunts
Probable Cause
• Control valve broken
• Control valve improperly adjusted
• Control valve improperly assembled
• Relief valve spring damaged
• Spool sticks
• Piston O-ring or cylinder damaged
• Oil filter cartridge clogged
• Suction pipe loosen or broken
• Suction pipe connecting hose loosen or
broken
• Suction pipe O-ring broken
• Insufficient transmission oil
• Relief valve setting pressure too low
• Hydraulic pump broken
• Feedback rod improperly adjusted
• Control valve malfunctioning
• Hydraulic cylinder worn or damaged
• Piston O-ring worn or damaged
• Control valve malfunctioning
• Control valve improperly adjusted
Replace
Adjust
Repair
Replace
Repair
Replace
Clean or replace
Repair or replace
Repair or replace
Replace
Refill
Adjust or replace
Replace
Adjust
Repair or replace
Replace
Replace
Replace
Adjust
8-S1
HYDRAULIC SYSTEM
Reference
Solution
Page
8-S13
8-S15
8-S15
8-S15
8-S15
8-S14
–
–
–
–
G-8
8-S9, S15
8-S7
8-S10
8-S15
8-S13
8-S14
8-S13
8-S15
W10143220
KiSC issued 11, 2006 A