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 TM 55-1925-204-12
Section II. MAINTENANCE ALLOCATION CHART
(1)
(2)
(3)
(4)
(5)
G
Functional group
Maintenance functions
Tools and
Remarks
R
equipment
O
A
B
C
D
E
F
G
H
I
J
K
U
C
P
A
O
I
S
L
I
R
V
R
N
N
E
A
I
N
E
R
E
E
U
S
R
D
A
B
S
P
E
R
B
M
P
T
V
J
L
R
T
L
P
H
U
B
E
E
I
U
I
A
A
A
A
A
I
E
C
S
C
S
G
T
L
C
I
U
L
R
T
T
E
T
N
E
L
E
R
L
D
0304
Sea Valves
C
..
..
..
..
..
..
H
H
0.2
..
..
..
..
..
..
4.0
6.0
0305
Piping
C
..
..
..
..
..
..
H
C
0.3
..
..
..
..
..
..
2.0
5.0
0306
Strainers
C
..
C
..
..
..
..
C
0.1
..
0.2
..
..
..
..
0.3
0307
Sea Chests
C
..
C
..
..
..
..
H
0.1
..
1.0
..
..
..
..
3.0
0308
Items:
Windshield Wipers
C
..
C
..
..
..
..
C
C
0.1
..
0.2
..
..
..
..
0.5
0.5
Intercom Devices
C
..
C
..
..
..
..
C
C
0.1
..
0.3
..
..
..
..
1.2
1.4
Telegraph and Indicator
C
C
C
C
..
..
..
..
C
0.2
02
0.3
0.5
..
..
..
..
1.3
Eductor System
C
..
C
..
..
..
..
..
C
0.2
..
0.2
..
..
..
..
..
0.5
04 GROUP - AUXILIARY SET
AND RELATED SYSTEMS:
0401
Engine Assembly, Diesel
C
C
C
C
C
..
..
F
C
H
0.3
1.0
0.5
0.3
0.4
..
..
16.0
8.0
24.0
Cylinder Head
C
..
C
..
..
..
..
C
C
H
..
17-H
N-H
0.1
..
0.2
..
..
..
..
2.0
2.4
4.0
Pistons and Connecting Rods
C
..
..
..
..
..
..
C
C
..
..
18-H, 19-H
0.2
..
..
..
..
..
..
1.0
1.5
..
..
20-H
Ring Sets
C
..
..
..
..
..
..
C
0.1
..
..
..
..
..
..
1.0
Cylinder Liner
C
..
C
..
..
..
..
C
..
..
..
21-H
0.1
..
0.2
..
..
..
..
4.0
C
..
C
..
..
..
..
C
0.1
..
0.1
..
..
..
..
2.0
Flywheel Assembly and Housing
C
..
..
..
..
..
..
C
C
0.1
..
..
..
..
..
..
2.3
1.5
Valves, Camshaft, and Timing
Systems
C
..
..
C
..
..
..
C
C
..
..
O-D
0.1
..
..
0.3
..
..
..
1.6
2.8
Valves, Guides Seats
and Springs
C
..
..
C
..
..
C
..
..
..
22-H, 23-H
0.2
..
..
0.5
..
..
2.4
..
..
..
24-H, 25-H
26-H, 27-H
28-H
Camshaft and Gear Train
C
..
..
..
..
..
..
C
C
0.1
..
..
..
..
..
..
4.0
4.0
Crankshaft
C
..
..
..
C
..
..
C
C
H
0.1
..
..
..
0.5
..
..
20.0
8.0
Main Bearings
C
..
..
..
..
..
..
C
0.2
..
..
..
..
..
..
10.0
Cylinder Block
C
..
C
..
..
..
..
O
C
0.2
0.2
..
..
..
..
6.0
6.0
0402
Lubricating Oil System
Oil Pump
C
..
..
..
..
..
C
C
H
0.2
..
..
..
..
..
6.0
8.0
8.0
Oil Filter
C
..
C
..
..
..
..
C
C
0.1
..
0.2
..
..
..
..
0.2
0.2
Oil Cooler
C
..
C
..
..
..
..
C
C
0.1
..
0.1
..
..
..
..
6.0
6.0
C-5
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