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Lift problem troubleshooting guide – BASELINE Lift BLMR06 User Manual

Page 20

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20

LIFT PROBLEM TROUBLESHOOTING GUIDE


The following are some suggestions to consider if problems are encountered with the lift. Please

call a Trained Lift Service Person for further clarification and information.

Problem

Possible Causes

Solutions

Lift Will

Not Raise

or Lower

1. Blown fuse or circuit breaker

2. Incorrect voltage to motor

3. Bad wiring connections

4. "UP" switch burned out

5. Motor windings burned out

1. Replace fuse or reset/replace circuit breaker

2. Supply correct voltage to motor

3. Repair and insulate all connections

4. Replace switch

5. Replace motor

Lift Will

Not Raise

1. Air in oil or low oil level

2. Lowering Valve leaks

3. Motor runs backward

4. Pump damaged

5. Pump will not prime

6. Relief Valve leaks

7. Voltage to motor incorrect

8. Lift overloaded

1. Check fluid level, oil seal, bleed system

2. Clean valve or replace

3. Check for correct wiring

4. Repair of replace pump

5. Check fluid level and pick-up tube; replace

pump

6. Clean Relief Valve (replace if necessary)

7. Supply correct voltage to motor

8. Verify that loaded vehicle weight does not

exceed rated lift capacity

Lift Will

Not Lower

1. Mechanical locks are engaged

2. Obstruction under lift or in glide

block tracks

3. Faulty lowering valve

1. Raise unit slightly and disengage mechanical

locks

2. Carefully remove obstruction - clean glide block

tracks

3. Replace valve

Lift Will

Not Hold

Pressure

1. Contamination in system

2. Internal Cylinder leaks

3. Lowering Valve leaks

4. Check Valve leaks

5. External leaks

1. Check oil level, bleed cylinders, remove

Contamination, replace oil seal

2. Check fitting, replace cylinder

3. Contaminated fluid, handle binds, clean valves

4. Clean check valve (replace if necessary)

5. Check all fittings and repair leaks

Lift Will

Not Raise

A Vehicle

1. Low hydraulic fluid

2.Malfunction of pressure relief valve

3. Insufficient electrical voltage

4. Lift overload

5. Motor is running backwards

6. Air in hydraulic oil
7. Pump will not prime

8. Pump is damaged

9. Faulty lowering valve

1. Lower lift. Using ISO grade 32 hydraulic oil, fill

the powerpack reservoir to 1" below the top

2. Clean pressure relief valve. if problem

continues, call a service technician

3. Confirm a 208/230 volt power supply to the lift

4. Check that vehicle weight is evenly distributed
And does not exceed rated capacity.

5. Confirm proper motor rotation - rewire if

required

6. Check oil seal and bleed hydraulic system

7. Check hydraulic oil level and pick-up tube.

Replace pump if required

8. Repair or replace pump

9. Clean or replace valve