National Crane Published 5-27-2018 Control # 039-06 7-3
800D SIDE SHIMMING OF BOOM SECTIONS
INNER BOOM PAD LUBRICATION
1. With the boom fully retracted, fill upper rear pad
retention pockets (pad retainers) with grease. Access
pockets through holes in rear of boom top plate.
2. Extend boom to full extension at this time. The upper
rear pad retention pockets will be under the 1/4 in grease
access holes in the butterfly plates on the top of the
boom sections.
3. Using a 1/4 in diameter nozzle grease gun adapter, fill
pad retention pockets with grease.
4. Retract boom. This should apply grease to the pad
bearing area of the top plates of the boom sections.
5. These steps can be repeated as many times as
necessary if unacceptable boom noise or chatter
persists.
SECOND
SECTION WEAR
PADS OF BOOM
WEAR PAD
ACCESS HOLES
FIRST
SECTION
OF BOOM
GREASE ACCESS
HOLES
9404
Fo
r
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