
TROUBLESHOOTING
11-10
HYDRAULIC SYSTEM
Problem
Cause
Solution
Hydraulic Oil Overheats
Relief valve
See your authorized dealer.
Contaminated oil
Drain oil and refill.
Travel motors
See your authorized dealer.
Improperly adjusted hydraulic
components
See your authorized dealer.
Oil Foams
Air leak in line from reservoir to pump
Repair leak or see your authorized
dealer.
Kinks or dents in oil lines
Check lines.
Wrong oil
Use correct oil.
Water in oil
Change oil.
High or low oil level
Correct level.
Low or No Oil Pressure
Wrong oil
Use correct oil.
Improperly adjusted hydraulic
components
See your authorized dealer.
No oil in system
Fill with correct oil.
Worn cylinder packing
See your authorized dealer.
Relief valve
See your authorized dealer.
No Hydraulic Functions
(Noise from pumps)
Hydraulic pump
See your authorized dealer.
Decreased set-pressure of main relief
valve in control valve
See your authorized dealer.
Lack of hydraulic oil
Add oil.
Damaged suction line or hose
See your authorized dealer.
Clogged suction filter
Clean.
Sucked air from oil suction port
Tighten.
Hydraulic Cylinders Operate
but Cannot Lift Load
Hydraulic pump worn
See your authorized dealer.
Main relief valve pressure low
See your authorized dealer.
Hydraulic oil level low
Add oil.
Suction screen plugged
Clean strainer and system.
Pump suction line leaking
Inspect suction line.
Pressure sensors
See your authorized dealer.
Solenoid valve
See your authorized dealer.
Summary of Contents for ZAXIS 120-3 class
Page 1: ......
Page 3: ......
Page 5: ......
Page 49: ...SAFETY SIGNS Europe Asia Middle and Near East Model Only S 38 MEMO ...
Page 131: ...BREAK IN 2 MEMO ...
Page 191: ...TRANSPORTING 6 MEMO ...
Page 290: ...HYDRAULIC CIRCUIT AND ELECTRICAL CIRCUIT 8 HYDRAULIC CIRCUIT M1V1 08 001 ...
Page 292: ...8 ELECTRICAL DIAGRAM ...
Page 293: ...HYDRAULIC CIRCUIT AND ELECTRICAL CIRCUIT 8 MEMO ...
Page 295: ...MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS 9 MEMO ...
Page 351: ...SPECIFICATIONS 12 42 MEMO ...
Page 455: ...OPTIONAL ATTACHMENTS AND DEVICES 13 104 MEMO ...
Page 461: ...INDEX 14 MEMO ...