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Page Title:
MAINTENANCE ALLOCATION CHART (MAC) |
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 TM 9-2320-312-24-1
MAINTENANCE ALLOCATION CHART (MAC)
Table 1. MAC for the M878A2 Yard Tractor.
(4)
(5)
(3)
(2)
(1)
(6)
MAINTENANCE LEVEL
FIELD
SUSTAINMENT
DS
UNIT
TOOLS AND
GS
DEPOT
EQUIPMENT
MAINTENANCE
COMPONENT/
GROUP
REMARKS
REFERENCE
F
FUNCTION
ASSEMBLY
NUMBER
CODE
C
O
CODE
H
D
020
ENGINE
0.5
Engine Assembly
Inspect
1.5
Test
2.0
1,4,5,18,21,30,
31,32
28
2.0
Service
22,27,35
A
Replace
36.0
8,11,12,17
Repair
4.0
4.0
95.5
Engine Mounts
Inspect
0.2
Replace
2.0
27,35
Transmission Mount
Replace
2.0
27,35
Cylinder Block
Repair
30.0
27,35
Cylinder Head
Replace
2.0
27,35
Assembly
Repair
8.0
17,24,35
Crankshaft
Replace
8.0
11,12,27,35
Main Seals
Replace
8.0
27,35
Vibration Damper
Inspect
0.2
Replace
2.0
27,35
Flywheel
Replace
8.0
27,35
Flywheel Housing
Replace
8.0
27,35
Pistons, Pins, and
Replace
8.0
27,35
Rings
Connecting Rods and Replace
8.0
27,35
Rocker Arm
Inspect
1.0
Assemblies
Replace
4.0
27,35
Rocker Arm Cover
Inspect
0.2
Replace
1.0
35
Camshaft Assembly
Replace
8.0
27,35
Camshaft Drive Gear Replace
4.0
27,35
Cam Follower
Replace
8.0
27,35
Valves
Adjust
2.0
27,35
Engine Breather
Service
0.5
28,35
Change 1
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