66037 REV. A
3
Rev. 7/2/18
SETUP INSTRUCTIONS
PLEASE REFER TO THE EXPLODED VIEW DRAWING IN THIS MANUAL IN ORDER TO IDENTIFY PARTS.
1. Depress the spring button at the bottom of the upper handle half (#13) and insert it in the lower handle half (#15) until the spring button
engages the hole in the lower handle half.
2. Remove the handle set screw (#17) from the handle yoke (#18). Install the assembled handle into the handle yoke (#18) making sure
the bottom of the handle engages the release valve u-joint (#19).
3. Install the handle set screw (#17) in the handle yoke (#18) and tighten the screw to secure the handle in the yoke.
4. Air may become trapped in the hydraulic system during shipping and handling. Trapped air will affect the pumping performance of the
jack. If this occurs, follow the air purging procedure below:
a) Remove the four screws that secure the cover plate (#22) to the jack frame (#4) so the oil fill screw (#21 - page 8) can be removed
from the hydraulic power unit reservoir tube (#38 - page 8).
b) With the lift arm (#27) in its down position, look inside the oil fill screw hole. You should be able to see the top of the power unit's
cylinder (#29 - page 8). The hydraulic fluid level should be no higher than the top of the cylinder. Correct the fluid level if it
is not at the proper height.
c) Pump the jack against a load that is at least 500 lbs. (225 Kgs). After the load is raised, slightly turn the pump handle in a
counter clockwise rotation so the load is very slowly lowered. While the lift arm is lowering, quickly pump the handle 5 or 6 full
incremental pump strokes. After pumping, lower the lift arm to its full rest position.
d) Install the oil fill screw (#21 - page 8). Rotate the handle in a clockwise rotation until tight and pump the lift arm to maximum height.
Repeat steps "a" through "d" until all of the air has been purged from the system.
e) Install the cover plate (#22) with the four screws.
OPERATING INSTRUCTIONS
This is the safety alert symbol used for the OPERATING INSTRUCTIONS section of this manual to alert you to potential personal
injury hazards. Obey all instructions to avoid possible injury or death.
IMPORTANT:
Before attempting to raise any vehicle, check vehicle service manual for recommended lifting surfaces.
OPERATION:
1.
To raise load:
Turn the handle in a clockwise direction until tight. Position the jack under the load. Proceed to pump the handle in order
to raise the lift arm to the load. As the saddle at the end of the lift arm gets closer to the load, reposition the jack so the saddle will
contact the load firmly and the load is centered on the saddle. Make sure the saddle is correctly positioned. Raise the load to the desired
work height. Place jack stands of appropriate capacity at the vehicle manufacturers's recommended support areas that provide stable
support for the raised vehicle.
DO NOT CRAWL UNDER VEHICLE WHILE LIFTING VEHICLE OR PLACING OR REMOVING THE
JACK STANDS!
Once jack stands are positioned, turn the handle VERY SLOWLY. Lower the load to rest on the jack stands. Inspect the
relationship between the jack stands and load to make sure the setup is stable and safe. If the setup is not stable or safe, follow the
preceding steps until corrected.
2.
To lower load:
Follow the procedures mentioned in "To raise load" section of the OPERATING INSTRUCTIONS in order to raise the load
off the jack stands. Once the load has cleared the jack stands, remove the stands from under the load and away from the work area.
Turn handle very slowly in a counterclockwise direction until the load is completely lowered to the ground. Once the jack's lifting saddle
has cleared the load, remove the jack from under the load. CAUTION: Keep hands and feet away from the hinge mechanism of the jack.
DO NOT CRAWL UNDER VEHICLE WHILE LIFTING VEHICLE OR PLACING OR REMOVING THE JACK STANDS!
PREVENTATIVE MAINTENANCE
This is the safety alert symbol used for the PREVENTATIVE MAINTENANCE section of this manual to alert you to potential personal
injury hazards. Obey all instructions to avoid possible injury or death.
1. Always store the jack in a well protected area where it will not be exposed to inclement weather, corrosive vapors, abrasive dust, or any
other harmful elements. The jack must be cleaned of water, snow, sand, grit, oil, grease or other foreign matter before using.
2. The jack must be lubricated periodically in order to prevent premature wearing of parts. A general purpose grease must be applied to all
zerk grease fittings, caster wheels, front axle, elevator arm, handle base pivot bolts, release mechanism and all other bearing surfaces.
Worn parts resulting from inadequate or no lubrication are not eligible for warranty consideration. See page 5 for lubrication instructions.
3. It should not be necessary to refill or top off the reservoir with hydraulic fluid unless there is an external leak. An external leak requires
immediate repair which must be performed in a dirt-free environment by an authorized service center.
IMPORTANT:
In order to prevent seal damage and jack failure, never use alcohol, hydraulic brake fluid or transmission oil in the jack.
Use Chevron Hydraulic Oil AW ISO 32 or its equivalent Unocal Unax AW 150.
4. Every jack owner is responsible for keeping the jack labels clean and readable. Use a mild soap solution to wash external surfaces of the
jack but not any moving hydraulic components. Contact Sunex for replacement labels if not readable.
OWNER'S MANUAL
66037
REV. A
CAPACITY: 3.5 TON
SERVICE JACK
