Poweramp POWERHOOK SERIES - Manual (Page 49)

To force the Hook in (retract), do the following:
1. Set the dock leveler on the maintenance prop.
2. Turn off the disconnect switch(es) – see WARNING on page 1.
3. Disconnect field wires 60, 61, 62 and 63. Cap off the end of wires 60, 61 and
63 with a wire nut.
4. Connect field wire 62 to the right side of any terminal block 11.
5. Turn on the disconnect switch(es).
6. Set the POWER, OFF-ON switch to ON
7. Set the OPERATION SWITCH to BYPASS.
8. Push and hold the RAISE pushbutton. Release the RAISE pushbutton when
the Hook is retracted to the desired position.
9. Turn off the disconnect switch(es) – see WARNING on page 1.
10. Reconnect field wires 60 through 63 as originally connected.
To force the Hook down (lower), do the following:
1. Set the dock leveler on the maintenance prop.
2. Turn off the disconnect switch(es) – see WARNING on page 1.
3. Disconnect field wires 60, 61, 62 and 63. Cap off the end of wires 60 and 62
with a wire nut.
4. Connect field wires 61 and 63 to the right side of any terminal block 11 (the
wires do not have to go to same terminal block 11).
5. Turn on the disconnect switch(es).
6. Set the POWER, OFF-ON switch to ON.
7. Set the OPERATION SWITCH to BYPASS.
8. In this step it is very important that the operator does not allow the Hook to
lower to a position that will cause any of the sensors on the guide track to
come into contact with the positioning cylinder. The sensors will contact
the cylinder if the RAISE pushbutton is held in for too long of a time and
this will damage the sensors. The Hook will lower rather quickly so it is
suggested that the operator apply only a quick momentary push on the
RAISE pushbutton, thereby allowing the Hook to only lower slightly. The
operator may have to apply additional quick momentarily pushes on the
RAISE pushbutton in order to get the Hook to lower to the desired position. If
the solenoids are working correctly the Hook will stay lowered until the
POWER, OFF-ON switch is set to OFF.
………………………………………………………………………………………….
Momentary push the RAISE pushbutton. If necessary, keep momentarily
pressing the RAISE pushbutton until the Hook is lowered to the desired
position. Turn the POWER, OFF-ON switch to OFF to allow the Hook to
raise.
9. Turn off the disconnect switch(es) – see WARNING on page 1.
10. Reconnect field wires 60 through 63 as originally connected.
4111-0010 — Nov 2010 47
TROUBLESHOOTING DOCK LEVELER