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MAINTENANCE
PROCEDURES
Maintaining Oil Level
IMPORTANT:
When adding or replacing oil, always use a good
grade, Hydraulic Jack Oil.
DO NOT use Brake Fluid, Alcohol,
Glycerine, Detergent Motor Oil, or Dirty Oil. Improper fluid can
causeserious internal damage to Jack.
Adding Oil:
With Saddle fully lowered & jack on level ground,
remove Filler Plug (See Fig. 2). Oil should be filled to level of oil
filler plug hole.
If low, add oil as needed.
Replacing Oil:
To drain oil remove filler plug and release valve
gear assembly. (See Fig. 3) Turn jack over and pour old oil out.
While refilling, be very careful not to permit dirt or foreign
matter to get into system. After refilling be sure to purge any air
from the system by opening release valve (turn handle counter-
clockwise) and operate pump handle rapidly several times.
PLUNGER
DOWN
OIL FILLER
PLUG
/
o,LLEVEL
',
_J_I,_L=
•
ILJ¾
RAM ALL
THE WAY
Fig. 2
IN
Preventing
Rust
Check Ram & Plunger every 3 months for any signs of rust or
corrosion. Clean as needed and wipe with an oily cloth.
When not using the jack, always leave the Saddle & Pump Plunger
all the way down.
PLUNGER
RELEASE
VALVE
GEAR
TROUBLE
SHOOTING
(USING
JACK WITHIN
RATED
LOAD CAPACITY)
Fig. 3
TROUBLE
Will not lift load at all
Will lift load only part way
Will lift load, but will not
hold
POSSIBLE CAUSE
1) No or tow Oil in system
2) Release Valve not closed
3) Power unit not functioning
4) Oil level low
5) Power unit leaking
REMEDY
1) Fill oil to prescribed level
2) Turn handle clockwise tightly
3) Replace power unit
4) Fill oil to prescribed level
5) Replace power unit
ReleaseValve stuck-probably
dirt or foreign matter
7) Dirty Oil
8) Air in Hydraulic System
Jack wil! not lower
6)
6) Transfer load & clean ReleaseValve
Poor lifting
7) Cha_ge Hydraulic Oil
8) Purg_ Air from system by opening
Release Valve (turn handle counter-
clock:wise) and pumping handle
severaltimes.
0
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