APW Wyott DI-1622 - Manual (Page 3)

3
CABLE REPLACEMENT KIT
Materials Furnished
Tools Needed
2 - (Two) Replacement Cables
2 - (Two) Power Drum Keys
Needle Nose Pliers
Hammer
1/4: Punch (Screwdriver will do)
Phillips Head No.3 Screwdriver
Box End or Hex Socket Wrenches
Tape Lockwasher
(Cable Clamp)
Flange
Weldment
Cable
Carrier
Weldment
Carrier
Pulley
Power
Drum
Screw “A”
Screw “B”
Shaft
Clamp
Limit
Cable
Carrier Pulley
Retainer
Power Shaft
Adjusting the Unit
A. Turn unit upside down on a flat surface.
B. With a socket or box end wrench, loosen the two hex head bolts
to relax the strap clamps holding the power shaft. The power shaft will turn about one
revolution when free of the clamps keep one hand on the power shaft while loosening the
clamps so it will not spin suddenly and cause the cable to "spill" off from the power drums.
C. With the aid of another person, unwind the cables from the power drums by pulling the
cables up evenly (allowing the power shaft to turn) until the cables are completely off the
drums. Do not allow the cables to "spill" off the power drums, as this puts an undesirable
twist in the cables.
D. Remove the eight screws from each power drum. If the load rate is to be increased, re-install
the screws into a smaller circle of holes. If the load is to be decreased, re-install the screws
into the larger circle of holes. Be certain that the same circle of holes is used on both of the
power drums. Be certain that the cable emerges between the same relative screw locations
on both power drums.
E. Loosen the cable clamp hex nuts at the four corners under the flange.
F. Hold the cables up to hold them taut. There will be two loops on each side-use your thumb
and index finger to support the loops on each side.
G. Have another person wind up the torque tube in the direction of the arrow stamped on the
power shaft, until all of the cable is wound back into the power drums.
H. Once the cable is wound tight, continue to turn the power shaft an additional 3/4 to one turn
(for head load required to support the weight of the mechanism), and tighten the clamp bolts
to prevent the tube from turning.
I. Tighten-the cable clamp hex nuts at the four corners under the flange.
J. Place the unit back in the counter and depress the platform fully several times to allow the
cables to attain their natural position on the power drums.