Hydraulic System

Symptom Problem Solution

Hydraulic System Overheating

Low hydraulic oil level

Check hydraulic oil level and add if necessary. (See Check Hydraulic System Oil Level in Maintenance-Every 10 Hours or Daily.)

Wrong oil (wrong viscosity, oil too thin)

Inspect hydraulic oil. (See Fuels and Lubricants chapter.) Change hydraulic oil and filter. (See Change Hydraulic Oil in Maintenance-Every 1000 Hours and Replace Hydraulic Oil Filter in Maintenance-Every 500 Hours.)

Oil flow through oil cooler restricted

Check for kinked or restricted hoses. See your authorized dealer.

Oil cooler air flow restricted

Clean oil cooler. (See Clean Debris from Condenser and Oil Cooler-If Equipped, and Radiator in Maintenance-As Required.)

Low Hydraulic Power (Low Hydraulic Pressure)

Low oil level (oil aerated)

Check hydraulic oil level and add if necessary. (See Check Hydraulic System Oil Level in Maintenance-Every 10 Hours or Daily.)

Hydraulic Sump Overfills with Oil

Cooling pump shaft seal

See your authorized dealer.

Hydraulic Oil Overheating

Oil cooler flow restriction

Check for kinked or restricted hoses. See your authorized dealer.

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