TM 5-3805-248-23-2
MAINTENANCE ALLOCATION CHART (MAC)
Table 1. MAC for the 621B Scraper.
(4)
(1)
(2)
(3)
(5)
(6)
MAINTENANCE LEVEL
FIELD
SUSTAINMENT
TOOLS AND
DS
UNIT
GS
DEPOT
GROUP
COMPONENT/
MAINTENANCE
EQUIPMENT REMARKS
NUMBER
ASSEMBLY
FUNCTION
REF CODE
CODE
C
O
F
H
D
01
ENGINE
A
0.1
0100
Engine Assembly:
Inspect
B
101,113
Service
103,113
0.3
2.0
0.5
Adjust
103,113
14.0
Replace
104,113
10.0
Repair
104,113
110.0
Overhaul
Engine Support
Inspect
0.1
113
Trunnion
Replace
1.0
0101
Crankcase, Cylinder
Block, and Head
Assembly:
Cylinder Head
Replace
2.0
103,113
Assembly
Repair
1.0
2.3
13,22.30
38,41,104
113
Engine Block,
Replace
6.0
Repair
6.0
8.0
7,26,27,28,
40,46,55,64,69,
73,84,86,90,95,
104,
113
0102
Crankshaft:
Crankshaft
Replace
3.5
4,50,58
Repair
16.0
61,68,84,85,88,
91,113
Replace
2.5
94,104,113
Seals, Main
Replace
2.5
6,8,45,48,52,
62,74,77,88,
113
Pulley & Dampers
Replace
1.3
113
0103
Flywheel Assembly:
Flywheel
Replace
8.0
10,113
Housing, Flywheel
Replace
1.0
113
