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INSPECTION

• Visual inspection shall be made before each use of the device by checking for abnormal conditions, 

such as cracked welds, leaks, and damaged, loose, or missing parts.

• This device shall be inspected immediately if the device is believed to have been subjected to an   

abnormal load or shock.

• Periodically clean and lubricate all moving parts and pivot points.

• With the jack in the fully lowered position, unlock release valve, remove oil filler plug.

• Pump the handle rapidly several mins. Reinstall oil filler plug.

• Turn the handle/release valve clockwise to the closed position.

• Pump the handle until the arm reaches maximum height and continue to pump several mins. to remove 

trapped air in the system.

• Turn the handle/release valve counterclockwise in one full turn and lower arm to the lowest position. Use 

force on saddle if necessary.

• Carefully and slowly loosen oil filler plug to release pressurized air.

• Repeat above steps until trapped air is completely vented.

LUBRICATION AND CLEANING

AIR VENTING PROCEDURES

Problems

Causes

Solutions

Jack will not lift the load.

Jack will not hold the load.

Jack will not descend to 
minimum height, or will 
not remain in lowered
position.
Jack will not lift to max
height.
Jack will not function
properly after trying solution.

1. Release valve not tightly closed.
2. Low oil level.
3. Defective or worn internal parts.
4. Load exceeds maximum allowance.

1. Release valve not tightly closed.
2. Power unit malfunction.

1. Air trapped in system.
2. Reservoir oil overfilled.

1. Low oil level.

1. Internal malfunction or 
    structural damage.

1. Tighten release valve.
2. Check and add oil. 
3. Discontinue use and contact a local 
     repair center.
4. Use a higher capacity jack.
1. Tighten release valve.
2. Discontinue use and contact a local repair
    center.
1. Check and ensure proper oil level.
2. Vent air out of system. Follow “AIR
    VENTING PROCEDURES” instructions.

   

1. Check and ensure proper oil level.
2.  Follow “MAINTENANCE” instructions.

1. Discontinue use and contact a local repair
    center.

TROUBLESHOOTING

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