PAGE 3 OF 9
1122 IH-1783
TROUBLESHOOTING
OPERATING ISSUE
CAUSES
RECOMMENDATIONS
Does not reach the full lift height.
1) Steel ball of the check-valve is not
fully seating.
2) Firing pin does not allow the steel
ball to fully seat.
3) Low hydraulic oil.
1) Clean the valve opening and
replace the steel ball.
2) Adjust the tension rate of the steel
wire connected to the hand lever to
adjust the seating of the firing pin.
3) Add hydraulic oil.
The table rises then descends.
1) Steel ball of the check-valve is not
fully seating.
2) Firing pin does not allow the steel
ball to fully seat.
1) Clean the valve opening and
change the steel ball.
2) Adjust the tension rate of the steel
wire connected to the hand lever
to adjust the seating of firing pin.
The table board does not descend.
The travel of the firing pin is not enough
to open the steel ball.
Adjust the tension rate of the steel
wire rope to make firing pin at
suitable place and apply lubricant
to the pin.
Oil leakage at firing pin.
The O-ring is damaged.
Change the O-ring.
Oil leakage at pump.
The seal ring is damaged.
Change the seal ring.
Table will not rise.
Cable may be disconnected.
Ensure cable with silver sleeve is
terminating inside of nut.
(See Figures 1-3)
It is very important to conduct necessary maintenance
and upkeep so as to prolong the service life and
safety of the lift table. Please check the lift table before
operation accordingly:
1. Check for any distortion or bending of any parts of
the lift table.
2. Check the brake of the truck and the condition of
the wheels.
3. Check for oil leakage in the hydraulic system.
4. Add or fill lubricant to each friction surface before
daily operation.
5. If there is any failure, the lift table should be
repaired at once before it is put into use again.
6. Change the hydraulic oil every twelve months.
Choose appropriate hydraulic oil according to the
climate conditions.
7. To change the hydraulic oil:
a. Unscrew sealing screw with a wrench.
b. Lift the hand lever.
c. Twist off screw of the oil plug and fill pump with
hydraulic oil.
MAINTENANCE
Figure 1
Figure 2
Figure 3
Cable
with Boot
Correct
Cable Insertion
Incorrect
Cable Insertion
1-800-295-5510
uline.com
