Repair/Replace Sediment Strainer Assembly.

TM 55-1905-223-24-7

2-12.

Repair/Replace Sediment Strainer Assembly. (FIGURE 2-3)

This task covers:

Removal,

Repair,

Replacement.

INITIAL SETUP:

Tools

Equipment Condition

Tool kit, general mechanic's,

RO desalinator shut down. Refer to

TM 55-1905-223-10.

Tag desalinator unit "Out of Service,

Materials/Parts

Do Not Operate".

Sediment strainer assembly P/N RWS

Preformed packing P/N RWS-5

Sediment strainer element P/N RWS-5B

Teflon tape, Item 1, Appendix C

Nonmetallic hose P/N PVTBF075

Warning tag, Item 11, Appendix C

REMOVAL

a. Close appropriate feedwater inlet gate valve (2, FIGURE 2-3, Sheet 1).

b. Loosen hose clamp (6, FIGURE 2-3, Sheet 2) and remove feedwater inlet nonmetallic hose (7) from elbow hose adapter (5).

c. Loosen hose clamp (6) and remove low pressure pump outlet nonmetallic hose (7) from elbow hose adapter (5).

d. Loosen hose clamp (6) from cleaning valve inlet nonmetallic hose (7) and remove from elbow hose adapter (5).

e. Remove two machine screws (11), lockwashers (12), and hexagon nuts (13) and lift sediment strainer assembly out of RO

desalinator.

REPAIR

a. Remove access cover (1) from sediment strainer body (4).

b. Remove sediment strainer element (2) from sediment strainer body (4).

c. Remove preformed packing (3) and discard.

d. Remove hose tee (9) by removing reducer bushing (10) and h ose nipple (8) from sediment strainer body (4).

e. Remove elbow hose adapters (5) from hose tee (9).

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