Harbor Freight Tools 39178 - Manual (Page 5)

SKU 39178 Page 5
Operation
WARNING: Before standing or working underneath any elevated vehicle or other object,
be sure that the vehicle is properly and safely secured following recommendations of
the lift manufacturer. For your safety and the safety of others, use good professional
practice and common sense. Only use on a flat, level surface capable of supporting
the weight of the jack, the workpiece and related tools.
1) The jack may easily be moved by rolling it on its casters. Locate the jack under
the transmission. Using a
1
/
2
” Drive Ratchet or Breaker Bar (neither one included)
engaged in Bushing (35), rotate the Screw Rod (29) clockwise in order to raise
the jack until the Saddle (3) nearly contacts the underside of the transmission.
Adjust the position of the jack so that it is centered directly under the center of
gravity of the transmission.
2) It is important for your safety to get a good contact between the Saddle (3) and
the transmission. This will assure that the transmission is properly supported
and balanced once removed from the vehicle and on the jack. Loosen the Wing
Nuts (5) and raise the jack again until the Saddle (3) contacts the transmission
and presses slightly against it.
3) Secure the transmission to the Saddle (3) by passing the Ratchet Tie-down (7)
over the top of the transmission, and securing it using the buckle. Be sure that
it is tight. Please review section on Ratchet Tie-down operation next page. Tighten
the Wing Nuts (5) and raise the jack until the transmission’s weight is supported
by it.
4) Remove the bolts and fittings attaching the transmission to the vehicle, as
recommended by the vehicle’s repair instructions.
5) Lower the transmission slightly by turning the Bushing (35) counterclockwise.
Recheck the transmission to assure that it is securely and safely attached to
the Saddle (3). Make any necessary adjustments. When it is safe to do so, lower
the transmission all the way by turning the Bushing (35). For safety, 2 people
should be working together to perform these operations.
6) While stabilizing the transmission on the jack, roll the transmission out from
under the vehicle to the work location where it will be repaired. It is a good idea
to have an assistant help you lower and move the transmission.
WARNING: The use of this jack is limited to the removal, installation, and transportation in
the lowest position, of transmissions and differentials. Do not store the transmission or any
other part on the jack,unless the jack is in the lowered position. However, the jack is not
appropriate as a long-term storage device. Never move the jack unless it is in its lowest
position.
Do not overload. Overloading can cause damage to the jack and cause consequential
personal or property injury. This jack is designed to use only on hard, level surfaces capable
of supporting the load. Use on other surfaces may cause instability and possible property
damage or personal injury.