4
To Assemble Your New Weaver Jack
1. Check the handle set screw for tightness.
2. On the WA-85 20 Ton Jack only--Remove and discard the vent filler plug. This is very important, as the
vent hole must always be kept open so the Jack can "breathe.”. The other models have a breathable vent built
into the cap.
3. Loosen the Piston Ram and Pump Packing Nuts slightly. They are tightened all the way down at the factory
for shipment. Tighten until no oil seeps out. They only need to be moderately tight.
To Operate the Jack
WARNING:
Always use stands to support vehicle before attempting under vehicle repairs or Inspections.
Always follow OSHA Workplace Safety standards.
1. Use the Jack on a smooth, hard and level surface only. Use the Jack only as a lifting device only.
2. Test the Jack by using the foot pedal only to raise the saddle to full height without a load. The pedal should
become very tight. If not, check the oil level or see the troubleshooting section.
3. The Jack is easily maneuvered by depressing the Handle Lock Lever until the lock rod engages one of the
two handle positions, and then pivoting the Jack on Its rear casters.
4. Place the jack in position so that the saddle will engage an approved lifting area of the vehicle. The saddle is
raised to the contact point by the foot pedal. Lift the load using the long handle – do not lift loads with the
foot pedal alone. On low clearance vehicles It Is often advantageous to operate the foot pedal by hand while
watches to assure proper saddle contact. Surface on which Jack rests should be fairly flat to prevent twisting of
the frame. Load should be centered in the saddle.
5. Pump with handle for easy lifting. Do not attempt to raise the jack beyond its travel stops.
6. To lower the load, pull back gently on the release lever. Always lower the load slowly.
7. Be certain that area beneath vehicle is clear before lowering the vehicle. Always use the release lever lock to
prevent unintentional operation of the release lever.