TROUBLE SHOOTING
Problem
Possible
Cause
Action
Will not hold load
Dirt on valve seats
1.
Lower lifting boom. Close the release
valve and remove oil filter plug.
2.
Place one foot on the leg and pull up the
lifting boom to its full height by hand.
3.
Open release valve to lower the lifting
boom.
4.
Worn seals.
Will not lift load
Will not lift to the full height
Pump feels unsteady under load.
Pump will not lower completely
Air block
1.
Open the release valve and remove oil
filler plug.
2.
Pump handle a couple of full strokes and
close the release valve.
Pump will not lift its full height
Pump feels unsteady under load
The reservoir could
be over filled
Low hydraulic oil
level
Check the oil level. Remove the filler plug.
Fill the oil to correct level
Pump feels unsteady under load
The pump seal
could be worn out
Replace cup seal with new one
Will not lower completely
Air block.
Unit requires
lubrication
Release air from hydraulic pump by removing
filler plug.
Oil external moving parts.
