7
ASSEMBLY INSTRUCTIONS
4. Connect the Lifter Boom and the Display Support to the Lifter Mast using the NC⅜-
20x2 ½” hex screw and tighten the self lock nut on its other side.
Note: This screw is the axis of the Lifter Boom, so it is imperative that the three parts – Lifter
Boom, Lifter Mast and Display Support – be assembled in the proper order.
Place the Plastic Washers on either side of the Lifter Boom screw hole to prevent friction.
With the Boom hooks facing down, place the Lifter Boom and Washers inside the two
sides of the Lifter Mast and align the holes. Place the Display Support over the Lifter Mast
and Lifter Boom and align holes. Thread the screw through all three parts and tighten the
self lock nut on the other side well.
5. Insert the shaft end of the Pump into the eared bracket on the Lifter Boom and align the
holes. Slip the 1-3/4” nut through the bracket and the Pump shaft hole. Tighten with
locknut.
6. Insert the Base Adjustment Lever into its socket at the back of the Lifter Base. Check to
see that the bump on the outside of the socket fits securely in the notched adjusting
plate. To adjust the base legs, pull back on the adjusting lever to unlock. Move the lever
to the right to widen the base.
7. A wheel lock is provided on the Lifter Base for parking only. To lock caster, step on cam
lever on side of caster. To unlock, step on higher cam lever. NOTE: Never lock wheel
lock or block wheels when lifting someone. Wheel lock is provided for parking the Lifter
only,
8. Check the operation of the Hydraulic Pump by pumping the handle to elevate the Boom.
Make certain the control valve knob – located on the pump near the handle) is fully
tightened (clockwise).
9. To lower the Boom, slowly turn the control valve knob counterclockwise. The rate of
descent can be controlled by how much the knob is turned. The Boom may not lower
readily with weight. To test, simply apply downward force to the Boom.
Note: If bolts, mounting pump or Lifter Mast are too tight, the Boom may not lower properly.