TM 9-4940-568-34
3-47
(5) Install spacer ring (20) on swing drive
assembly (1) with nine screws (12) and
washers (13). Tighten screws to 99 lb-ft
(134 N.m).
(6) Position two wedges (21) in “V” shaped
cut-outs on swing drive assembly (1)
and against spacer ring (20).
WARNING
Unsafe welding practices
can cause serious injury
from fire, explosions, or
harmful agents. Allow only
authorized personnel to
weld or cut metals, and fol-
low safety precautions in
TM 9-237. Protective cloth-
ing and goggles must be
worn; adequate protective
equipment used, a suitable
fire
extinguisher
kept
nearby; and requirements
of TM 9-237 strictly fol-
lowed.
CAUTION
Do not weld wedge to swing
drive assembly (1). Only weld
wedge (21) to spacer ring (20) or
damage to equipment will result.
(7) Weld two wedges (21) to spacer ring
(20) in accordance to TM 9-237.
(8) Install lifting device on swing drive
assembly (1) using two washers (10)
and screws (9).
(9) With help from assistant, position swing
drive assembly (1) under subframe
assembly (6).
(10) Position lifting device through subframe
assembly (6) and attach to chain.
(11) With help from assistant, use lifting
device and
position
swing
drive
assembly (1) in subframe assembly (6).
NOTE
The .005 in. (.127 mm) metal
strip must be positioned around
tooth on spur gear (26) and
between spur gear (26) and
bearing gear (22) to obtain .010
in. (.254 mm) backlash.
(12) Position .005 in. (.127 mm) metal strip
around tooth of spur gear (26) and
position spur gear (26) with metal strip
on bearing gear (22).
WARNING
Unsafe welding practices
can cause serious injury
from fire, explosions, or
harmful agents. Allow only
authorized personnel to
weld or cut metals, and fol-
low safety precautions in
TM 9-237. Protective cloth-
ing and goggles must be
worn; adequate protective
equipment used, a suitable
fire
extinguisher
kept
nearby; and requirements
of TM 9-237 strictly fol-
lowed.
(13) Tack weld spacer ring (20) to subframe
(6) in accordance with TM 9-237.
20
1
13
12
21
