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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
0112
Engine Electrical System
Instrument Control Panel
C
C
..
..
..
..
..
..
C
0.1
0.1
..
..
..
..
..
..
0.3
Pyrometer
..
C
C
C
..
..
..
O
O
..
0.2
0.3
0.4
..
..
..
0.6
0.8
Meters
O
..
C
..
..
H
..
C
0.1
..
0.2
..
..
0.2
..
0.5
C
C
C
..
..
..
C
0113
Upper Base (Crankcase)
C
..
..
..
..
..
..
..
C
H
0.2
..
..
..
..
..
..
..
8.0
10.0
0114
Flywheel Assembly
C
..
..
..
..
..
..
H
0.1
..
..
..
..
..
..
24.0
Jacking Device
C
..
..
..
..
..
..
C
C
0.1
..
..
..
..
..
..
1.0
0.5
Engine Air Brake Assembly
C
..
C
C
..
..
..
H
C
H
0.2
..
0.1
0.1
..
..
..
8.0
0.5
6.0
Brake Lining
C
..
..
C
..
..
..
C
0.1
..
..
0.2
..
..
..
4.0
Air Cylinder
C
..
C
..
..
..
..
C
C
0.1
..
0.1
..
..
..
..
1.0
1.5
Air Pilot Valve
C
..
..
..
..
..
..
C
0.1
..
..
..
..
..
..
0.5
Pressure Regulating Control
C
..
C
..
..
..
..
C
C
Valve
0.1
..
0.1
..
..
..
..
1.0
0.8
Pressure Gage
C
O
C
..
..
..
..
C
H
H
0.1
..
0.1
..
..
..
..
0.9
1.0
1.3
0115
Crankshaft Main Bearings
Crankshaft
C
..
..
C
..
..
..
H
..
H
0.3
..
..
0.4
..
..
..
40.0
..
30.0
Main Bearings
C
C
C
..
..
..
..
C
..
..
L-A, L-D
0.3
0.4
..
..
..
..
..
16.0
0116
Lower Base
C
..
C
..
..
..
..
H
0.2
..
0.2
..
..
..
..
40.0
0117
Thrust Bearings {Kingsbury)
C
C
H
..
..
..
..
H
C
H
0.1
0.2
4.0
..
..
..
..
20.0
8.0
32.0
02 GROUP- PROPELLER
AND SHAFT
0201
Propeller
C
..
..
..
..
..
..
H
H
H
0.2
..
..
..
..
..
..
40.0 16.0 24.0
Bearings
C
..
..
..
..
..
..
H
0.3
..
..
..
..
..
..
4.0
0202
Shaft, Propeller
C
..
..
..
..
..
..
H
H
H
0.3
..
..
..
..
..
..
16.0 24.0 32.0
C
..
..
..
..
..
..
..
..
..
..
M-D
0.3
Stuffing Boxes
C
..
..
C
..
..
..
H
0.1
..
..
0.2
..
..
..
8.0
C
..
..
C
..
..
..
C
0.1
..
..
0.2
..
..
..
0.8
03 GROUP- HULL ASSEMBLY
0301
Hatches
C
..
..
..
..
..
..
C
C
0.1
..
..
..
..
..
..
1.0
1.0
0302
Doors
C
..
..
..
..
..
..
C
C
0.1
..
..
..
..
..
..
0.5
0.5
0303
Port Lights
C
..
..
..
..
..
..
C
C
0.1
..
..
..
..
..
..
0.5
0.5
C-4
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