791-7331 A
3
rev. 10/17/19
SETUP
PLEASE REFER TO THE EXPLODED VIEW DRAWING IN THIS MANUAL IN ORDER TO IDENTIFY PARTS.
1. Insert the "T" handle in the jack's handle receiver and secure it with the bolt and locknut provided. Make sure the hose bars
on the "T" handle are facing up.
2. Install the air disconnect fitting of your choice in the jack's air valve.
3. The air hose can be looped around the hose bars on the "T" handle when not being used.
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.
1. Become familiar with the two position air valve. Depressing the air valve lever closest to where the shop air hose is connected to the valve
will raise the ram for lifting. Depressing the air valve lever in the opposite direction will lower the load.
2. IMPORTANT: Before lifting load, become familiar with the use of the jack's ram tube, saddle tube, extension tube and pins provided. While
jack is pressurized, a sudden loss of load will cause ram tube, saddle tube and/or extension tube to rise with sufficient force to cause
severe personal injury and/or property damage. One pin is used for positioning the extension tube or the saddle tube in the ram at the
desired height. The pin should be put through the desired hole in the extension tube or saddle tube, leaving enough pin exposure on either
side of the pin to rest in the half cutout holes in the top edge of the ram tube. When using the saddle tube with the extension tube, make
sure they are secured together by using the smallest of the three pins.
3. With the jack in the lowered position, push the jack under the vehicle. IMPORTANT: use the manufacturer's recommended lifting
procedures and lifting points before lifting loads. Position the jack at the designated lift point. Estimate the required ram travel to raise the
vehicle to the desired height. If the desired vehicle height exceeds the entire ram travel, adjust the saddle and/or ram tube(s) to make up
the difference.
4. Chock the vehicle's tires that will not be lifted off the ground prior to lifting the vehicle and if available, apply the emergency brake or any
other method of braking.
5. Depress the air valve lever to raise the saddle close to the designated lift point. Make sure the designated lift point is flat, parallel to the
ground and free from grease, any kind of lubricant, or debris. Do not use the saddle's locating lugs to lift or support the load.
6. It will be necessary to use 200 P.S.I. input air pressure to achieve the full 10 ton jack lifting capacity. Once the saddle is properly aligned
with the designated lift point, proceed to lift the vehicle to the desired height. During lifting, inspect the position of the jack in relation to
the ground and the saddle in relationship to the load to prevent any unstable conditions from developing. If conditions look like they are
becoming unstable, slowly lower the load and make appropriate setup corrections after the load is fully lowered.
7. When the vehicle is lifted to its desired height, immediately place jack stands in the designated locations recommended by the vehicle
manufacturer to support the load. Adjust the stands' support columns up as close to the designated vehicle support points as possible.
Although jack stands are individually rated, they are to be used in a matched pair to support one end of a vehicle only. Stands are not to
be used to simultaneously support both ends or one side of a vehicle. Depress the air valve very slowly to gently and slowly lower the
vehicle onto the jack stands. Make sure the vehicle is safely supported by the jack stands' saddles and not the locating lugs of the
saddles. Inspect the relationship of the jack stands with the ground and the jack stand columns and saddles with the vehicle to prevent
any unstable conditions. If the conditions look unstable, depress the air valve very slightly to gently and slowly raise the vehicle off the
jack stands. Make the appropriate setup changes and slowly and carefully lower the vehicle onto the jack stand saddles.
8. In some situations, this jack can be used as a jack stand but should be used in a matched pair to support one end of a vehicle only. Jacks
used as jack stands are not to be used to simultaneously support both ends or one side of a vehicle. In order to use this jack as a jack
stand, the second large pin provided should be put through the ram tube, leaving enough pin exposed on either side of the ram tube to
rest on top of the cylinder sleeve when the air is slowly released for lowering. The air in the cylinder should be completely released when
the pin is resting on the cylinder sleeve. Regardless of using this jack for lifting purposes or jack stand purposes, make sure the setup is
stable. If the jacks are used in pairs, it is important to remember the lifting of the load is not synchronized and the operator should be very
careful to lift one jack at a time in reasonably short increments to prevent unstable conditions.
9. After work is done, depress the air valve to raise the vehicle just high enough to clear the jack stand saddles. Be sure load is stable. If it
is not, lower the load back onto the jack stands. Make appropriate setup corrections and repeat the step again. Remove the jack stands
from under the vehicle, being very careful not to move the vehicle. After the jack stands are removed, very slowly and carefully lower the
vehicle down to the ground.
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 sand, grit, oil, grease or other foreign matter before using.
OPERATING MANUAL & PARTS LIST FOR 791-7331 A
