Replace/Repair Expansion Tank Group. (FIGURE 2-47)

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FIGURE 2-46. Engine Poppet Cover Torque Sequence

TM-55-1905-223-24-5 Bowthruster Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

FIGURE 2-47. Expansion Tank Group

TM 55-1905-223-24-5

2-36. Replace/Repair Expansion Tank Group. (FIGURE 2-47)

This task covers:

a. Removal

b. Inspection

c. Repair

d. Replacement

INITIAL SETUP:

Tools

Equipment Condition

Tool kit general mechanic's

Engine shut down (TM 55-1905-223-10.).

rail and marine diesel engines,

Cooling system drained (TB 55-1900-207-24).

Engine tagged "Out of Service-Do Not

Operate."

Materials/Parts

Dial indicating pressure gauge

P/N 3008837.

Nonmetallic hose P/N 200517

Nonmetallic hose assembly (2)

P/N AS40120MS

Gasket P/N 7274

Cloth, Item 4, Appendix C

REMOVAL

a. Remove pipe nipple (18), pipe coupling (17), and pipe bushing (16) from pipe

elbow (15).

b. Remove pipe elbow (15) from nonmetallic hose assembly (14).

c. Disconnect nonmetallic hose assembly (14) from pipe to tube elbow (13).

d. Disconnect bottom hose clamp (10) and remove from bottom expansion tube

(11). Remove nonmetallic hose (12).

e. Disconnect top hose clamp (10) and remove from top expansion tube (11).

Remove preformed hose (9).

f. Remove pipe elbow (8) from bottom end of nonmetallic hose assembly (7).

g. Remove nonmetallic hose assembly (7) from straight adapter (6).

h. Remove liquid sight gauge (19).

i. Remove hexhead capscrews (1, 4), flat washers (2, 5).

j. Remove expansion tank (20).

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