Poweramp POWERHOOK SERIES - Manual (Page 13)

INSTALLATION
KS4 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 ® KS4 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 5.
Platform modifications, step 5 were completed prior
to shipment.
• When installing PowerHook with a Poweramp
hydraulic dock leveler which is powered by remote
power pack or a Centra Power
®
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
KS4 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.
2. Install storage props on both side of the leveler and
the safety pin on the maintenance prop.
3. Shut off all power to dock leveler control assembly.
4. Modify the underside of the dock leveler platform
as indicated on the “Dock Leveler Modification
Drawing(s)” attached to this manual.
5. 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.
6. Install restraint pan into the pit. Insert spreader bar
into pan to reinforce during concrete pour. Make
sure the pan’s square and flush with the pit floor
and front dock wall.
7. Pour concrete around the truck restraint pan
and Hoist cylinder trunnion plates(s) that is to be
imbedded in the pit floor in the plate is separate
from the pan.
8. Allow sufficient time for the concrete to set.
9. Assembly truck restraint (only required if pan was
shipped separately).
A. Remove all trunnion keepers.
B. Grease cylinder trunnions.
C. Install cylinders.
D. Install all trunnion keepers and prox switches
See adjustments See page 28
10. Modify dock leveler frame as needed per “Dock
Leveler Modification Drawing”.
11. Install all hydraulic hose’s and fill system with
approved hydraulic oil. See page 26
12. Install out side signs and lights
13. Finish all electrical connections.
14. Adjust and test leveler and restraint operations.
4111-0010 — Nov 2010 11