Diagnose Hydraulic System

Symptom Problem Solution

Complete Hydraulic System Failure

Low hydraulic oil level

Check hydraulic oil level. Add oil, if necessary.

Faulty pump

Replace pump. Contact authorized dealer for service.

Damaged suction line

Replace line. Contact authorized dealer for service.

Slow Cylinder Operation

Cold hydraulic oil

Warm up system.

Incorrect hydraulic oil

Change hydraulic oil. See Section 3-1 for recommended hydraulic oil.

Faulty pump

Replace pump. Contact authorized dealer for service.

Hydraulic Oil Temperature Too High

Incorrect hydraulic oil

Change hydraulic oil. See Section 3-1 for recommended hydraulic oil.

Contaminated or faulty oil cooler

Clean oil cooler. Contact authorized dealer for service.

High pressure in tank return circuit

Replace filters.

Contact authorized dealer for service.

Suction line air leak

Locate and repair leak.

Contact authorized dealer for service.

Hydraulic Oil Foams

Water in hydraulic oil

Change hydraulic oil and filters.

System Noise

System air leak

Check hydraulic oil level. Add oil, if necessary.

Loose component hardware

Locate and tighten loose fasteners.

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