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Reelmaster 7000−D Hydraulic SystemPage 5 − 31

Troubleshooting

The charts that follow contain information to assist in hy-

draulic system troubleshooting. There may possibly be

more than one cause for a machine malfunction.

Refer to the Testing section of this Chapter for precau-

tions and specific testing procedures.

General Hydraulic System Problems

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Problem

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Possible Cause

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Hydraulic system operates hot.

NOTE: An indication that the hy-

draulic system is operating at exces-

sive temperatures would be frequent

reversing of the cooling fan and a

normal engine coolant temperature.

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Engine RPM is too low.

Hydraulic reservoir oil level is low.

Hydraulic oil is contaminated or the wrong type.

Brakes are applied or sticking.

Piston pump bypass valve is open or damaged.

Cooling system is not operating properly.

Charge pressure is low.

Engine cooling fan circuit is malfunctioning (see Engine Cooling Fan

Circuit Problems in this section).

Traction circuit pressure is incorrect.

Pump(s) or motor(s) are damaged.

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Hydraulic oil in reservoir foams.

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Hydraulic reservoir oil level is low.

Wrong type of oil is in the hydraulic system.

Air is leaking in suction line.

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Hydraulic oil leak(s).

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Fitting(s), hose or tube loose or damaged.

Missing or damaged O-ring in fitting.

Hydraulic

System

Brand	Toro
Model	03721
Category	Lawn Mower
Language	English

Toro 03721 Service Manual

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