TM-9-2320-260-20
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
APRIL 1995
TM-9-2320-260-20 - Page 108 of 1337
TM 9-2320-260-20
Table 2-1. Unit Level Preventive Maintenance Ckecks and Services (Contd).
ITEM
INTERVAL
ITEM TO
CHECK/
PROCEDURE
NOT FULLY
No.
MISSION
SERVICE
CAPABLE IF:
31
Semi-
Transfer
a.
Inspect transfer case (4) for oil leaks, cracks, and
Any class III leak.
annual
case
loose screws that may cause leaks. Notify your supervisor
if leaks or cracks are found.
b.
Inspect transfer case (4) for loose mounting screws and Transfer mount is
nuts. Tighten transfer case (4) stud nuts 125-135 lb-ft
loose or damaged.
(170-183
N•m),
if loose. Tighten transfer case (4) support
bracket screws and nuts 65-70 lb-ft (88-95 N•m), if loose.
c.
Remove and clean transfer case breather valve (5).
1. Wipe area around breather valve (5) with rag.
2. Remove transfer case breather valve (5) from
transfer case (4).
WARNING
Drycleaning solvent is flammable and will not be
used near open flame. Use only in well-ventilated
places. Failure to do so may result in injury to
personnel.
3. Clean transfer case breather valve (5) with
drycleaning solvent and dry with a lint-free clean rag.
4. Install transfer case breather valve (5) on transfer
case (4).
d.
Check transfer case (4) oil level at fill plug (6) every
3,000 mi (4,827 km) (LO 9-2320-260-12).
e.
Change lubricant only when required by main-
tenance repair action, or if contaminated by water or
other foreign material. Drain only after operation when
hot. Place vehicle in level position. Remove filler plug (6)
and drain plug (7) from case, and after draining reinstall
drain plug (7). Fill transfer case (4) within 1/2 in. (12.7
mm) of filler plug (6) opening, when lubricant is
cold, or to plug level when hot. Install filler plug (6).
2-21
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