TM 5-3805-248-23-2
MAINTENANCE ALLOCATION CHART (MAC) - CONTINUED
0338 00
Table 1. MAC for the 621B Scraper - Continued.
(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 - Continued
0104
Pistons and Connecting
Rod Assembly:
Piston and Connecting Replace
2.0
14,20,49,113
Rod Assembly
Repair
3.0
70,71,104,
113
0105
Valves, Camshafts and
Timing System:
Valves and Springs
Replace
6.9
103,113
Adjust
1.1
103,113
C
Pushrods
Replace
1.4
103,113
Rocker Arms
Replace
0.5
113
Covers, Valve
Replace
1.0
101,113
Lifters, Valve
Replace
1.2
103,113,120
Bridges
Adjust
0.3
103,113
Camshaft
Replace
1.0
67,104,113
Bearings, Camshaft
Replace
2.0
18,55,113
Timing Gears & Plate Replace
1.5
36,44,72,87,109
0106
Engine Lubrication
System:
Oil Pump
Replace
0.4
11,103,
D
113
Oil Filter
Replace
0.2
101,113
Oil Filter Base
Replace
1.0
103,113
Oil Pan
Replace
2.0
103,113
Oil Lines & Fittings
Inspect
1.0
113
Replace
0.7
Oil Cooler
Inspect
0.5
Replace
1.5
113
0108
Manifolds Exhaust
Inspect
0.2
Replace
0.5
113
0338 00-2
