Section VI. REPAIR OF FRONT DRUMSHAFT
c. Slide retainer (51 and seal (6) off end of the
shaft as an assembly. Remove and discard seal (6)
The front drum shaft (refer to fig. 5-1 ) is used as the
and install another seal in retainer (5).
primary load line in crane type applications and as the
d. Slide clutch assembly (7) off shaft as an
digging drum for digging applications. It can be equipped
with sprocket-type lagging for shove application. The
disassembly and reassembly instructions for this
type of lagging on the drumshaft will not change the
disassembly and reassembly procedures given in the
e. Remove retainer (10) with seal (9) by removing
following paragraphs, with the exception that the
capscrews (8). Remove gasket (11).
methods of attaching the various front end attachments
f. Working from the opposite end of the shaft, pull
will necessarily change. These procedures are described
bearing (40) from shaft (34).
in TM 5 3810-294-10.
g. Remove retainer (39) and seal (38).
h. Remove gear (37). Then remove sprocket (31)
i. Remove split lagging (28) by removing nuts
(24), lockwashers (25), studs (26), nuts (30) and cotter
Figure 5-9 illustrates the front drumshaft assembly parts.
pins. Remove capscrews (13) and lock-washers (14)
Part one of the illustration shows crane drum
to remove lagging (28).
arrangement and part two shows shovel drum
j. Press shaft (34) out of drum (18) in either
arrangement. Disassemble the front drumshaft as
direction. Depending on which direction the shaft is
pressed out, bearing (12) or bearing (35) and seal (36)
a. Remove nut (1), lockwasher (2), and keyed
will come off on the shaft. Remove -items mounted on
washer (3). Remove items (15, 16, and 17).
the shaft, and remaining items (12 or 35) from the
b. Remove bearing (4) from shaft (34), using