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 TM 5-1940-277-20
TM 1940-20/2
Section II. MAINTENANCE ALLOCATION CHART
FOR
BOAT, BRIDGE ERECTION, TWIN JET, ALUMINUM HULL,
MODELS USCSBMK1 AND USCSBMK2 - Continued
(1)
(2)
(3)
(4)
(5)
(6)
Maintenance Level
Field
Sustainment
Group
Maintenance
Tools and Equipment
Unit
DS
GS Depot
No.
Function
REF Code
Component/Assembly
Remarks
C
O
F
H
D
12 Valves
Adjust
1.0
2
(cont) Valve Springs
Replace
2.0
12
Crankshaft Pulley
Inspect
0.1
1.0
2
Replace
Oil Pump
Replace
4.0
12
Piston and Connecting
Inspect
0.5
12
F
Rod Assembly
Repair
14.0
12
Replace
8.0
12
Cylinder Liner
Inspect
1.5
12,10
Replace
12.0
Main Bearings
Inspect
1.0
12
Replace
8.0
Crankshaft
Inspect
1.5
12,21
Replace
6.0
Camshaft
Inspect
1.0
12
Replace
6.0
Camshaft Bearings
Replace
1.0
12,19,20
Repair
8.0
Engine Block
Inspect
1.0
12
Replace
8.0
Oil Sump (Pan)
Inspect
0.5
12
Replace
7.0
Flywheel and Housing
Inspect
0.5
3.0
1
Replace
Sump Pump Assembly
Inspect
0.1
0.4
1
Replace
Engine Breather Water
Inspect
0.1
Trap Assembly
Service
0.1
0.3
2
Replace
Air Filter Assembly,
Inspect
0.1
0.5
1
Cover, Filter Element, and Service
0.2
1
Silencer
Replace
13
TRANSMISSION
Oil Strainer Assembly
Inspect
0.1
2
G
Service
1.0
2
G
Replace
1.0
2
1.2
Lines and Fittings
Inspect
0.1
0.4
1
Replace
Change 2
B-11
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