Use and Care Manual

10
Maintenance (continued)
RUST PREVENTION
Check the ram and pump piston every two months (or sooner, based on usage) for any signs of rust or corrosion.
Clean as needed and wipe down with an oil cloth.
Troubleshooting
Problem Solution Solution
The jack will not lower
completely.
□ There is air in the hydraulic
system.
□ The release valve is stuck.
□ Purge air from the hydraulic
system.
□ Transfer the weight load and
clean the valve.
The jack will not hold weight. □ Release the valve in open
position. Check the locking pin
and release handle to make sure
they are functioning properly.
□ Close the release valve tightly.
The jack will not raise. □ The oil level is low.
□ There is air in the hydraulic
system.
□ Fill to recommended level.
□ Purge air from the hydraulic
system.
The jack lifting is weak. □ There is air in the hydraulic
system.
□ The oil is dirty.
□ The release valve is not com-
pletely closed.
□ Purge air from the hydraulic
system.
□ Change the oil. Use SAE 5W.
□ Close the release valve tightly.
The jack will not lift the load. □ The weight is excessive.
□ The release valve is in the open
position.
□ The oil level is low.
□ Decrease the weight or change to
a higher capacity jack.
□ Turn the valve clockwise and
tighten.
□ Fill to a recommended level.
The lift arm will not lower. □ Check the locking pin and release
handle to make sure they are
functioning properly.
□ Call customer service.