Poweramp POWERHOOK SERIES - Manual (Page 15)

INSTALLATION
KS5 INSTALLATION
Post safety warnings and barricade the work
area at dock level and ground level to prevent
unauthorized use of the dock leveler before
installation has been completed.
Failure to follow the installation instructions can
result in damage to dock leveler, the facilities, and/
or serious personal injury or death.
IMPORTANT
DO NOT connect the dock leveler electrical wiring
and ground connections until all welding has been
completed.
DO NOT ground welding equipment to any
hydraulic or electrical components of the dock
leveler. Always ground welding equipment to the
dock leveler frame, NEVER to the platform.
Failure to follow these instructions may damage the
motor, hoist cylinder, wiring, and/or control panel.
These installation instructions were written for retrofitting
a Poweramp
® hydraulic dock leveler with integral power
pack with a PowerHook
®
KS5 Vehicle Restraint.
If you are not adding the PowerHook ® to an existing
dock leveler, some steps may not be needed or
additional procedures may be required, as follows:
• When installing in new construction (i.e., new
PowerHook and new Poweramp hydraulic leveler
in a newly prepared pit), skip steps 1 through 6.
Platform modifications, step 6 were completed
prior to shipment.
• When installing PowerHook with a Poweramp
hydraulic dock leveler which is powered by remote
power pack or a CentraPower
® system, refer to
the manuals provide with those units as well as to
page 15 in this manual.
• When installing Powerhook with a mechanical
dock leveler or a hydraulic dock leveler
manufactured by another company, the
PowerHook must be equipped with a remote
hydraulic power pack. See page 15 of this
manual.
1. Review the Field Wiring Drawing and the
certified pit drawing attached to this manual. The
PowerHook KS5 vehicle restraint with a hydraulic
dock leveler requires two separate 3/4” conduit
runs from the control assembly to the junction box
located at the rear pit wall. An additional conduit,
if required, may be run either in a trench dug in
the concrete or in a space between the pit walls
and the dock leveler. The dock leveler will be
removed from the pit (steps 9-14) and reinstalled
in the pit . If additional conduit is to be imbedded
in the concrete, it may be best to do so when the
dock leveler is not in the pit. If a surface route is
planned, it may be better to install the conduit
after returning the dock leveler to the pit.
2. Raise the platform, following instructions in the
dock leveler owner’s/user’s manual, and support
with the maintenance prop.
3. Attached lifting plates, supplied by others, to the
outboard joists on both sides of the dock leveler.
Use front hole on one side and rear hole on the
other.
4. Shut off all power to dock leveler control assembly.
5. Disconnect all wires at the junction box located on
the rear pit wall.
6. Modify the underside of the dock leveler platform
as indicated on the “Dock Leveler Modification
Drawing(s)” attached to this manual.
7. Remove hydraulic fluid. To do so, locate the return
port at the drive plate for the hydraulic pump. Set a
catch vessel below the port. Remove the hose at the
return port and allow the hydraulic fluid to drain from
the reservoir. When the reservoir is empty, reinstall
the hose. Dispose of the fluid properly.
8. Use a fork truck (or other method) to raise and hold
the dock leveler platform. Remove the maintenance
prop.
9. Burn or grind all welds where the dock leveler
frame is welded to steel imbedded in the pit.
NOTE: frame removal on 10’ and 12’ long CLEAN PIT ®
units may not be necessary. Consult factory.
4111-0010 — Nov 2010 13