Repair Auxiliary Fire Pump Assembly

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DISASSEMBLY

TM-55-1905-223-24-12 Fire Pump System for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

Rotating Element.

TM 55-1905-223-24-12

4-12. Repair Auxiliary Fire Pump Assembly. (FIGURE 4-1)

This task covers: a. Disassembly, b. Repair, c. Assembly.

INITIAL SETUP

Tools

Equipment Condition

Tool kit, general mechanic's,

TM 55-1905-223-10, bowthruster

diesel engine shut down, tagged

Lifting sling P/N 3375957

"Out of Service, Do Not Operate."

Bearing puller P/N 5120-00-288-7710

Hydraulic press P/N (68225) 2009-13

Materials/Parts

General Safety Instructions

Cleaning solvent, Item 2, Appendix C

Use a lifting sling.

Non-metallic brush, Item 4,

Ball bearing P/N 2669989

Ball bearing P/N 1104454

Oil, Item 8, Appendix C

Casket material Item 1,

Shellac, Item 9, Appendix C

Shaft sleeve P/N 2677382

Preformed packing P/N 2673291

Preformed packing P/N 2669940

Preformed packing P/N 2669942

Casket P/N 2669833

Impeller P/N 2669112

Graphite, Item 10, Appendix C

Overview of pump assembly. This will be a task that requires a lot

attention to keeping track of the order of piece parts, as you take

apart the pump assembly, clean everything, and replace parts as

necessary before assembly.

DISASSEMBLY

a. Pump.

(1)

Disengage drive coupling halves (paragraph 3-13).

4-8