TM-9-2320-361-34
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
MAY 1992
TM-9-2320-361-34 - Page 455 of 764
TM 9-2320-361-34
15-38. BORING CASE MAINTENANCE
(Contd)
g. Auger Rack Bar Installation
1. Manually turn horizontal leveling worm gear (9) until boring case
(16) is
horizontal
(TM 9-2320-361-10).
2. Coat
auger
rack
bar (1) with GAA grease.
3. Place chain on auger rack bar (1) approximately
4ft (1.22 m) from
left end.
4. Attach lifting
device to chain.
WARNING
Ensure auger rack bar is balanced on chain during installation.
Failure to do so may cause auger rack bar to slip from chain,
causing injury to personnel or damage to equipment.
NOTE
●
Ensure
teeth
of
auger
rack
bar
face
to the right.
●
Assistant
will
help
with
step 5.
5. Insert auger rack bar (1) in boring case (17) until it engages. Continue feeding until it extends
approximately two feet out of carrier
(10).
Remove lifting device and chain.
NOTE
. Thinnest thrust plate is mounted on shortest stud of thrust plate
retainer and installed against teeth of auger rack bar.
●
All
shims
are installed to previously recorded distance.
6. Place thrust plates (11) and (12) in thrust plate retainer (13) and install on carrier (10).
7. Install new shims (14) and rack carrier nut (16) on carrier (10) with two screws (15).
8. Place thrust plates (18) and (22) in thrust plate retainer (19) and install on carrier (10).
9. Install rack carrier nut (20) on carrier (10). Tighten two screws (21).
10. Install derrrick tube case (2) on boring case (17) with six new lockwashers (3) and screws (4).
11. Install auger rack bar guide (8) on auger rack bar (1) with retaining pin (5), new lockwasher (6),
and setscrew (7).
15-144
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