TM-9-2320-285-24-1
TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1985
TM-9-2320-285-24-1 - Page 221 of 987
TM 9-2320-285-24-1
2-24.
ALTERNATOR MAINTENANCE (CONT)
STEP
LOCATION
ITEM
ACTION
REMARKS
INSPECTION (cont)
8
c.
Adjusting strap
Inspect
Replace if cracked, broken,
(cont)
(17), alter-
distorted, or otherwise
nator bracket
damaged
(21), and
support
bracket (26)
d.
Pulleys (14 and
Inspect
Replace if cracked, broken,
28)
distorted, or bores or
sheaves worn
e.
Coupling (34),
Inspect
Replace if cracked, broken,
bearing (38),
or distorted
oil seal
(39) and re-
tainer (40)
f.
All other parts
Inspect
Replace if cracked, broken
distorted, or threads
damaged
REASSEMBLY
9
Alternator
a.
Bearing (38)
Install
Press in retainer (40); use
drive as-
arbor press
sembly (35
b.
Retaining ring
Install
thru 40)(37)
c.
Oil seal (39)
a.
Lubricate
Pack lip of seal with grease
b.
Install
Press into retainer (40)
d.
Drive shaft
Install
Use arbor press
(35)
e.
Spacer (36)
Install
INSTALLATION
10
Alternator
a.
Key (41)
Position
In drive shaft (35) keyway
drive as-
b.
New gasket (33)
Position
On retainer (40)
sembly (35
c.
Coupling (34)
Install
thru 40)
and alterna-
tor drive
assembly (35
thru 40)
d.
Four lock
Install
washers (32)
and capscrews
(31)
e.
Lock washer
Install
(30) and cap-
screw (29)
2-198
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