Zico QUIC-LIFT HLAS-1200, Parts And Instruction Manual

Page: 17 / 32

-17-
A. Excess Movement of the Rack and Ladders (continued)
3. Turn the cylinder shaft in the appropriate direction to lengthen or shorten it.
WARNING: Do not use a pipe wrench or vise grips. Damage to the cylinder shaft
will occur. The shaft will almost always turn by hand. Rubber coated
work gloves will increase your grip.
f. After turning the shaft about 1/4 turn, raise the unit back up. do not tighten the clevis clamp
bolt at this time.
g. make sure the cylinder is fully extended and re-check for the 3/32" gap while pulling out on
the boom assemblies.
FIGURE 13
FRONT VIEW
FIGURE 14
SIDE VIEW
h. After the 3/32" gap is achieved, tighten the clevis clamp bolt and turn the bumpers until they
are touching the base casting (1). maintain outward pressure on the boom while you are hand
tightening the bumper.
i. Lower the unit a few inches. Turn the bumpers out one full turn away from the backing
plate. re-tighten the bumper lock nuts (65).
j. Raise the unit back up to full cylinder extension. Listen for the pump to slow down. The
gap between the inside face of the latch (9) and the outside face of the latch bar (10) should now
be 1/64" to 3/64" and the unit will be tight.