Replace/Repair Aftercooler Group.

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REPLACEMENT

TM-55-1905-223-24-3 Ship s Service Generator for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

FIGURE 2-46. Aftercooler Group.

TM 55-1905-223-24-3

2-41. Replace/Repair Aftercooler Group.

This task covers:

a. Removal,

b. Disassembly,

c. Repair,

d. Assembly,

e. Replacement.

INITIAL SETUP

Tools

Equipment Condition

Tool kit, general mechanic's rail

Engine shut down and cooled below

120 (50

and marine diesel engines,

C). TM 55-1905-223-10.

5180-00-629-9783

Cooling system drained (Table 2-1,

Torque wrench kit P/N 3377216

Item 24).

Air supply secured (port).

Materials/Parts

Battery banks disconnected (starboard).

Refer to TM 55-1905-223-10.

Coolant, Item 8, Appendix C

Aftercooler mounting guide studs

Item 47, Appendix C

Cleaning solvent, Item 6, Appendix C

Gaskets P/Ns 216487/215044/70089-1/

3032348/216486/3008591/S-684

Aftercooler core P/N 3028997

Preformed hose P/N 202994

Nonmetallic hose P/Ns 3025874/3041968

Preformed packing P/N 195952

Lubricating oil, Item 2, Appendix C

REMOVAL

Remove the air crossover piping from the turbocharger and the aftercooler as follows:

(1)

Loosen hose clamps (1, Figure 2-46) and remove preformed hose (2) from air crossover connection

(3).

(2)

Remove four capscrews (4) and four flat washers (5) and remove air crossover connection (3) and

gasket (6) from the aftercooler. Discard the gasket.

Loosen two hose clamps (12) on nonmetallic hose (19) and disconnect the bentmetallic tube (18) from the water

inlet connection (10).

Loosen two hose clamps (12) and disconnect nonmetallic hose (13) from the elbow to hose flanged water outlet

connection (39).

2-134