H-1784, H-8152
DOUBLE SCISSOR
LIFT TABLES
OPERATING ISSUE
Does not reach the full
lift height.
The table rises then
descends.
The table does not
descend.
Oil leakage at firing pin.
Oil leakage at pump.
Table will not rise.
Figure 1
Cable
with Boot
PAGE 1 OF 5
1-800-295-5510
uline.com
TROUBLESHOOTING
CAUSES
Steel ball of the check-valve is not fully
seating.
Firing pin does not allow the steel ball to
fully seat.
Low hydraulic oil.
Steel ball of the check-valve is not fully
seating.
Firing pin does not allow the steel ball to
fully seat.
The travel of the firing pin is not enough
to open the steel ball.
The O-ring is damaged.
The seal ring is damaged.
Cable may be disconnected.
Figure 2
Correct
Cable Insertion
Para Español, vea páginas 2-3.
Pour le français, consulter les pages 4-5.
RECOMMENDATIONS
Clean the valve opening and replace
the steel ball.
Adjust the tension rate of the steel wire
connecting to the hand lever to adjust
the seating of the firing pin.
Add hydraulic oil.
Clean the valve opening and change
the steel ball.
Adjust the tension rate of the steel wire
connecting to the hand lever to adjust
the seating of firing pin.
Adjust the tension rate of the steel wire
rope to make firing pin at suitable
place and apply lubricant to the pin.
Change the O-ring.
Change the seal ring.
Ensure cable with silver sleeve
is terminating inside of nut.
(See Figures 1-3)
Figure 3
Incorrect
Cable Insertion
0221 TH-1784