Poweramp POWERHOOK P4111-0010 5.2006 - Manual (Page 32)

30 4111-0010 — December 2004
5. Adjust the lower vertical limit of hook operating
range if necessary.
A. Locate the proximity switch that is mounted in
the bracket located on the trunnion for the
hook cylinder. Locate the target for the
switch. See Figure 27.
NOTE: The position of the target in relation to the
switch will determine the lower travel limit of the
hook. When the hook lowers, the target is positioned
into the sensing area of the proximity switch. The
switch is activated when the target is sensed, at
which time Input 3 on the PLC should be ON.
At no time should the target come into direct contact
with the switch.
The typical factory set position for the target is at the
10 o’clock position looking at it from the side with the
hook lowered sensor at 12 o’clock.
See Figure 28
B. Loosen the bolt that holds the target.
C. Turn the target 2-4 degrees counterclockwise
if the lower limit of the hook is greater than
9”. The hook will lower but will not extend if
the target is adjusted too far
counterclockwise.
D. Turn the target clockwise if the lower limit of
the hook is less than 8”. The hook will
extend without lowering if the target is
adjusted too far clockwise.
E. Repeat Steps C or D until the lower vertical
limit of the hook is 8”-9” above the driveway.
When adjustments are completed hold the
target in place and tighten the bolt.
6. Back the truck/trailer with RIG into dock.
7. Momentarily press the ENGAGE button. Truck
restraint hook should lower, extend, raise, and
retract until it locks onto ICC bar. Power pack
should then shut off.
ADJUSTMENTS
Adjust PowerHook Operating Range
A— Hook Lowered Sensor
Target Bar
B—Powerhook Hold Down
Weldment
C— Hook Lowered Sensor
Bracket
D—Flat Washer
E— Trunnion Bolt
Figure 27
8. Check lights.
-Inside Green
-Outside Red
9. Test dock leveler operation. See dock leveler
Owner’s Manual.
10.Checking of Alarm (if equipped) and Lights for
Premature Truck Departure can be accomplished
by having a truck attempt to pull away from an
engaged hook. HOWEVER, it is not
recommended due to potential damage to RIG
bars that may not be up to current strength
standards.
11.Momentarily press RELEASE button. The
PowerHook should disengage from the RIG bar
and restore behind the dock wall. Power pack
should then shut off.
12. Check Lights
-Inside Light Red
-Outside Light Green
A D C B E