HYDRAULIC SYSTEM
B2650HSDC, B3350HSDC, WSM
7-S1
1. TROUBLESHOOTING
9Y1210822HYS0001US0
Symptom Probable Cause Solution
Reference
Page
Implement Does Not
Rise (No Noise)
Control valve broken Replace 7-S13
Control valve improperly adjusted Adjust 7-S15
Control valve improperly assembled Repair 7-S15
Relief valve improperly assembled Replace 7-S5
Piston O-ring or cylinder damaged Replace 7-S14
Implement Does Not
Rise (Noise)
Oil filter cartridge clogged Clean or Replace G-31
Suction pipe loosen or broken Repair or Replace 2-S18
Suction pipe connecting hose loosen or broken Repair or Replace 2-S18
Suction pipe O-ring broken Replace 2-S18
Insufficient transmission oil Refill G-20
Relief valve setting pressure too low Adjust or Replace 7-S5
Hydraulic pump broken Replace 7-S6
Implement Does Not
Reach Maximum
Height
Feedback rod improperly adjusted Adjust 7-S5
Implement Does Not
Lower
Control valve malfunctioning Repair or Replace 7-S13,
7-S15
Implement Drops by
Its Weight
Hydraulic cylinder worn or damaged Replace 7-S17
Piston O-ring worn or damaged Replace 7-S14
Control valve malfunctioning Replace 7-S13,
7-S15