Replacing and shimming boom slide pads — general – Lull 6K Service Manual User Manual
Page 302
Boom and Transfer
6-52
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
Replacing and Shimming Boom Slide Pads — General
Fig. 6-36: Slide Pad Installation (2-Section Shown)
(Ref. Fig. 6-36) As boom pads wear, it becomes necessary to install or
remove shims to maintain the correct clearances. Specific instructions and
clearances for 2-section, 3-section, and 4-section booms are provided on
following pages.
Usually, the main load bearing pads (caged pads) are the only pads that
will need shimming. The other pads are not normally subjected to heavy
wear.
Fig. 6-37: Positioning Retaining Block
(Ref. Fig. 6-37) After shimming caged pads, the retaining block must be
correctly positioned to prevent possible damage to the boom.
Shims
Bolted
Pad
Caged Pad
Pad
Capscrew
Lockwas
her
Pad
Cage
Retaining Block
J1019
Position this edge just below
lower limit of pad chamfer.
Retaining Block
Pad
Lower Limit of Pad
Chamfer
J1042