Troubleshooting Chart for Electric Hydraulic Power Units

MODEL

CONDITION

POSSIBLE CAUSE

CORRECTION

 

 

 

 

 

 

All

Plow does not lift or lifts

1.

Low hydraulic fluid level

1.

Add fluid to proper level.

Power

slowly- motor operates.

2.

Discharged battery.

2.

Recharge battery.

Angling

 

3.

Leaking or open “A” cartridge.

3.

Clean or replace “A” cartridge.

Models

 

4.

No current to “B” coil. (red wire)

4.

Locate malfunction and repair.

 

 

5.

Inoperative “B” coil. (red wire)

5.

Replace “B” coil. (red wire)

 

 

6.

Malfunctioning motor.

6.

Repair or replace motor.

 

 

7.

Malfunctioning pump.

7.

Replace pump.

 

 

 

 

 

 

All

Plow does not angle right -

1.

Improper coupler engagement.

1.

Engage coupler properly.

Power

motor operates.

2.

Mechanical bind or interference.

2.

Eliminate mechanical bind or interference.

Angling

 

3.

Malfunctioning coupler.

3.

Repair or replace coupler.

Models

 

4.

No current to “C” coil. (green wire)

4.

Locate malfunction and repair.

 

 

5.

Inoperative “C” coil. (green wire)

5.

Replace “C” coil. (green wire)

 

 

6.

Inoperative “C” cartridge.

6.

Clean or replace “C” cartridge.

 

 

7.

Leaking or open crossover relief valve.

7.

Clean or replace crossover relief valve.

 

 

 

 

 

 

All

Plow does not angle left -

1.

Improper coupler engagement.

1.

Engage coupler properly.

Power

motor operates.

2.

Mechanical bind or interference.

2.

Eliminate mechanical bind or interference.

Angling

 

3.

Malfunctioning coupler.

3.

Repair or replace coupler.

Models

 

4.

Leaking or open crossover relief valve.

4.

Clean or replace crossover relief valve.

 

 

 

 

 

 

All

Plow will not angle -

1.

Improper coupler engagement.

1.

Engage coupler properly.

Power

Motor operates.

2.

Mechanical bind or interference.

2.

Eliminate mechanical bind or interference.

Angling

 

3.

Leaking or open crossover relief valve.

3.

Clean or replace crossover relief valve.

Models

 

 

 

 

 

 

 

 

 

 

 

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Jeep E-60 owner manual Troubleshooting Chart for Electric Hydraulic Power Units, Model Condition Possible Cause Correction