blocks, or other defect.
(5) Reassemble boom and components by
reversing procedure in steps (1) through (4) above.
(3)
Repair by welding cracks or breaks,
straightening bends, and replacing worn or defective
c. Cleaning, Inspection and Repair.
parts.
(1)
Clean all parts with an approved
d. Installation.
Install backhoe boom by
cleaning solvent and dry thoroughly.
reversing procedures in a above.
(2)
Visually inspect all parts for cracks,
breaks, bends, scored or worn bearings, worn bumper
Section IV. PILEDRIVER FRONT END ATTACHMENT
4-32. General
(7) adapters on catwalk (para 4-37) then
The piledriver front end attachment (fig. 2-14)
install catwalk.
consists of a standard crane boom (para 4-13) with one
(8) Install pile hammer, pile cap, and pile
10 foot boom section inserted between base and point
collar (para 4-36)
sections, pile leads, hangers, catwalk, adapters,
(9) Lower
hammer, cap, and collar to
hammer, pile cap, pile collar, and special cables for
ground, then perform preventive maintenance checks
hoist and digging drums (table 1-2).
and services (para 3-6).
b. Removal. When piledriver front end attachment
Caution : Crane-shovel unit must be level
is to be removed and stored so that crane-shovel unit
when using piledriver attachment.
If it is
may be converted for other use, proceed as follows:
impracticable to grade site level, timbers must be
(1) Move piledriver unit to a suitable area for
used to level the unit.
storage, then remove collar, cap, and hammer (para
4-33. Piledriver Front End Attachment
(2) Remove pile leads (para 4-35).
a. Installation. Assuming the shovel front end
(3) When shovel or backhoe front end
attachment has been installed, proceed as follows:
attachment is to be installed, remove crane boom (para
(1) Remove shovel front end attachment
Note.
When crane, clamshell, or
(2) Remove shovel cables from drums (para.
dragline front end attachment is to be installed,
disregard step (3) above and proceed as in step (4)
below.
reposition planetary clutch band to crane configuration
(4) Remove piledriver cables (para 3-43), and after
(pars 3-130).
referal to appropriate paragraph, install lagging and
(3) Install piledriver cables (table 1-2) (para
cables (table 1-2) for the new front end attachment.
cables on drums.
Caution : When it is intended to store any
(4) Move crane-shovel unit into position to
removed front end attachment for a considerable
install boom, similar to that shown in figure 2-6, connect
period of time, all components must be lubricated in
boom to revolving frame (para 4-13) then reeve boom
hoist cable (fig. 2-7).
accordance with lubricating order (LO 5-3810-201-
(5) Raise boom (para 2-12b) just enough to
12)and protected against deterioration by the
allow cribbing to be removed. Remove cribbing, then
elements during period of storage.
install pile leads (para 4-35)
(6) Reeve hammer and pile handling cables
4-34. Pile Lead Hangers
keep looped end in reach, then guide hammer cable
bolts from each hanger (fig. 4-31), then remove hangers
down through pile leads. Raise boom (para 2-12b) and
from pile lead.
travel unit forward (para 2-12c) simultaneously until pile
b. Cleaning, Inspection and Repair.
leads are suspended vertically (fig. 2-14) with bottom of
(1) Clean all parts in an approved cleaning
leads touching the ground.
solvent and dry thoroughly.
Caution: Do not drag bottom of leads
(2) Visually inspect hangers for cracks,
on ground by raising boom without traveling crane
shovel unit, and avoid damage to the leads.
4-30
