TM-9-2350-311-20-2
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS
DECEMBER 1993
TM-9-2350-311-20-2 - Page 760 of 828
TM 9--2350--311--20--2
B--12
Change 4
SECTION II. MAINTENANCE ALLOCATION CHART -- Cab Armament, Sighting and Fire
Control, Elevating And Traversing Systems And Associated Components. -- Continued
(1)
(6)
(5)
(4)
(3)
(2)
MAINTENANCE LEVEL
SUSTAINMENT
FIELD
GROUP
NUMBER
REMARKS
CODE
TOOLS AND
EQUIPMENT
REF CODE
DEPOT
GS
DS
UNIT
MAINTENANCE
FUNCTION
COMPONENT/
ASSEMBLY
D
H
F
O
C
17
NBC ***
1701
HEATER, AIR,
INSPECT
0.3
ELECTRICAL***
REPLACE
0.5
4
REPAIR
0.5
4
1702
PURIFIER, AIR***
INSPECT
0.3
REPLACE
0.6
4
REPAIR
1.0
4
TEST
0.5
10
170201
PRECLEANER AIR
INSPECT
0.5
4
PURIFIER***
REPLACE
1.5
4
REPAIR
2.5
4
170202
FILTERS***
INSPECT
0.5
4
SERVICE
0.5
4
REPLACE
0.5
1703
CONTROL BOX
TEST
0.3
ASSEMBLY***
REPLACE
0.5
4
REPAIR
1.0
4
18
SIGHTING EQUIPMENT
1803
COLLIMATOR, INFINITY
INSPECT
0.1
0.1
0.1
0.1
4, 20
AIMING REFERENCE
SERVICE
0.5
4,10
(M1A1)
REPLACE
0.5
REPAIR
4.0
13.0
4, 20--28
180301
CASE, COLLIMATOR
(M1A1)
INSPECT
REPLACE
0.1
0.1
REPAIR
2.0
20
180302
COVER ASSEMBLY
(M1A1)
INSPECT
REPLACE
0.1
0.5
20
REPAIR
0.5
20
180303
MOUNT, TRIPOD
COLLIMATOR INFINITY
AIMING REF. (M1A1)
10556235
INSPECT
REPLACE
REPAIR
0.1
0.5
2.0
20
20,21
18030301
LEG, COLLIMATOR
INSPECT
0.1
REPLACE
0.2
20
REPAIR
0.5
20
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