MST13002 3
Rev. 10/16/17
ASSEMBLY INSTRUCTIONS
This is the safety alert symbol used for the SETUP 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.
SETUP
1. Remove the 2-piece handle from box. Depress the upper handle lock button and insert the smaller diameter end of the upper
handle into the lower handle end with hole. Make sure the button engages the hole.
2. Grease the inside of the handle yoke so the handle will rotate freely inside the yoke. Remove the handle yoke screw. Insert the end
of the lower handle all the way in the handle yoke until it engages the release valve assembly. Secure the handle in the handle yoke
by reinstalling the handle yoke screw and tightening the screw. Rotate the handle to see if it is rotating the release valve assembly.
Pull on the handle to make sure it is secured in the handle yoke. If the release valve assembly is not rotating and/or the handle
pulls out of the handle yoke, repeat step 2.
3.
IMPORTANT:
In most cases the jack should work normally right out of the box but it is not unusual for air to get trapped in the
jack’s hydraulic system during shipping and handling. There are several symptoms of an air trapped hydraulic system which
include only partial incremental pump stroke, jack will not lift load, jack will not sustain load or pumping feels spongy under load.
The following procedure will purge air from the hydraulic system and only needs to be done if experiencing any of the above
mentioned conditions.
a) The saddle should be in its lowest position. Remove the four screws that secure the cover plate to the jack frame so the oil
filler screw can be removed from the hydraulic power unit reservoir tube.
b) Look inside the oil fill screw hole. You should be able to see the top of the power unit’s cylinder. 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.
CAUTION:
In order to prevent
seal damage and jack failure, never use alcohol, hydraulic brake fluid, or transmission oil in the jack. Use hydraulic jack oil, a
light turbine oil, Chevron Hydraulic Oil AW ISO 32 or Unocal Unax AW 150.
c) Close the release valve by turning the handle clockwise until it stops. Pump the jack against a load of at least 500 pounds (225
Kgs). After the load is raised to maximum height, slightly turn the handle in a counterclockwise direction so the load is very
slowly lowered, while simultaneously and quickly pumping 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. Rotate the handle in a clockwise direction until tight and pump the lift arm to maximum height without a
load. Repeat steps a) through d) until all the air has been purged from the system.
Reinstall the cover plate.
IMPORTANT:
Before attempting to raise any vehicle, check vehicle service manual for recommended lifting surfaces.
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. Put vehicle transmission in park or in gear and then apply the emergency brake.
To raise load: IMPORTANT:
Use the vehicle manufacturer's recommended lifting procedures and lifting points before lifting
loads. 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 jack handle VERY SLOWLY in a
counterclockwise direction to 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 jack stands from under the load and away from
the work area. Turn handle very slowly in a counter clockwise 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.
DO NOT CRAWL UNDER VEHICLE WHILE
LIFTING VEHICLE OR PLACING OR REMOVING THE JACK STANDS!
CAUTION:
Keep hands and feet away from the
hinge mechanism of the jack.
