Napa 791-6620 B Mode D'emploi page 2

operating ManUal & parts list for 791-6620 B
SETUP
PLEASE REFER TO THE EXPLODED VIEW DRAWING IN THIS MANUAL IN ORDER TO IDENTIFY PARTS.
1. In order to install the handle assembly item #41 in the handle socket item #36, first align the main handle tube with the largest
hole in the handle socket and the lock pin rod with the smaller hole in the handle socket.
2. Make sure the lock pin rod is in the down/lock position before insertion in the handle socket. Once the main handle tube and lock
pin rod are aligned with their respective holes in the handle socket, push the handle assembly in the handle socket so the end of
the handle tube engages the release valve mechanism in the bottom of the handle socket and the lock pin rod engages one of
the three (3) locking holes in the item #1 frame.
3. Now rotate the "T" handle portion of the handle assembly so it is perfectly aligned with the jack before tightening the item #40
bolt and item #38 nut. Tighten the bolt and nut so the handle can not rotate. Disengage the lock pin rod by pulling up on the
lever and engaging the lever with the slot in top of the handle assembly. The handle assembly should be free to pump up and
down.
4. In order to check for proper handle assembly alignment with the handle socket, see if the lock pin rod will engage with the three
locking holes in the frame. Also, turn the release valve knob at the top of the handle assembly left and then right to see if the
release valve u-joint in front and below the handle socket is rotating simultaneously with the turning of the knob.
5. Install the quick disconnect of your choice in the air valve (index #61). Route the air hose so that it will not conflict
with any moving parts and place the air valve on the handle hook. Connect the shop air line to the air valve.
6. Before Use: Air may become trapped in the hydraulic system.
PURGING AIR FROM THE HYDRAULIC SYSTEM:
a. Rotate the knob at the top of the handle assembly in a clockwise direction until tight.
Now turn it in a counterclockwise direction two full turns.
b. Activate the foot pump pedal item #37 about 15 times.
c. Rotate the knob at the top of the handle assembly in a clockwise direction until tight.
d. Activate the foot pump until the lift arm is raised to maximum height. You should experience a full pump stroke with each
incremental pump of the pedal.
e. If it does not feel your are getting full incremental pump stroke at anytime during the pumping operation, repeat steps "a"
through "d" until all air is purged from the system
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 knob at the top of the handle assembly in a clockwise direction until tight. Position the jack under the
load. Proceed to pump the handle or the foot pedal or depress the air valve lever 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. Remember that foot pedal pump operation is only used
to quickly raise the saddle to the load. The handle pump operation or air valve lever of the jack is used to lift the load. Raise the
load to the desired work height. Place jack stands of appropriate capacity at the vehicle manufacturer's recommended support
areas that provide stable support for the raised vehicle. DO NOT CRAWL UNDER VEHICLE WHILE LIFTING VEHICLE OR
REMOVING THE JACK STANDS! Once jack stands are positioned, turn the knob at the top of the handle assembly in a counter
clockwise direction 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. NOTE.
Once the hand or air pump operation has ceased, the handle assembly can be locked in any of the three (3) handle locking
positions. Typically, the handle locking positions are used for moving the jack around the shop, keeping the handle out of the way
or preventing the handle from being pumped.
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 the knob at the top of the jack's handle assembly 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.
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 or grit before using.
791-6620 B
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2 Revised 04/15/09