Poweramp PR SERIES HYDRAULIC - Manual (Page 19)

17 4111-0001 — Sept. 2010
INSTALLATION
18. CleanPit models only:
a. Temporarily support platform in the full raised
position using an external lifting device.
Provide addition support using two 4 x 4 in.
(102 x 102 mm) wood beams of sufficient
length, one at each side of platform. (
Use of
two steel supports having sufficient strength
is acceptable.)
b. Remove maintenance prop (D) from the
shipping location on dock leveler frame.
c. Position base of maintenance prop (D) so
center of prop is approximately 8-1/2 in. (216
mm) (E) to left* of dock leveler center. Adjust
position of prop base so opposite end of
prop will go between the platform joists (A)
when prop is fully raised. The prop must not
contact the joists, wiring, or other
components.
d. Tack weld the prop base to front pit curb
steel. Raise the prop to the upright position
to make sure the prop does not contact a
platform joist. The prop must rest against the
inside corner of the lip hinge header.
e. When proper operation of the prop is
confirmed, finish weld the prop base to the
front pit curb steel.
f. Move the maintenance prop to the service
(upright) position. Remove the temporary
supports installed in step a of this procedure
and lower the platform onto the prop using
the external lifting device. Confirm the prop is
properly engaged. DO NOT disconnect the
external lifting device at this time.
* For left/right orientation of dock leveler, see inside back cover of
this manual.
19. All model levelers: Install shims at locations (B)
using the pyramid or stepped shimming method.
Both platform cylinder trunnions must be solidly
shimmed the entire length of the trunnion. Make
sure the trunnions are level from side-to-side as
well as from front-to-back.
20. Finish weld all shims using a fillet weld.
• Weld all shims within each shim stack to each
other, then weld the shim stack to the leveler
frame.
• Weld the front leveler frame shim stacks to the
front pit curb steel.
21. When all welding has been completed, paint all
the welds and shims.
NOTE: CleanPit models are shipped with a T-frame
(C) installed. This temporary frame holds the
leveler frame at the correct dimensions until
the leveler is permanently anchored into
place. Only then should it be removed.
There are six cap screws and nuts that fasten
the T- frame to the rest of the leveler frame.
Tack welds may also be used.
22. For CleanPit models only, remove the T-frame
(C).
Make sure the platform is properly supported in the
raised position before entering the pit to finish weld
the shims. Failure to do this may result in serious
personal injury or death.
Standard models only:
DO NOT use the maintenance prop to support the
raised platform until the maintenance prop has
been properly shimmed and welded. The shims
must be welded to each other, the leveler frame,
and to the front pit curb steel. Failure to do this may
result in serious personal injury or death.
Closely follow the step-by-step instructions for
installing the CleanPit maintenance prop. Failure to
install the maintenance prop correctly may result in
failure of prop during use, damage to equipment,
and/or serious personal injury or death.