Section V. INTERMEDIATE DIRECT SUPPORT MAINTENANCE PROCEDURES

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Table 3-1. Intermediate Direct Support Troubleshooting

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

Replace Fire Pump Subsystem.

TM 55-1905-223-24-12

Table 3-1. Intermediate Direct Support Troubleshooting - CONT

Malfunction

Test or Inspection

Corrective Action

AUXILIARY FIRE PUMP - CONT

4. Pump noisy or vibrates.

STEP 1. Check for cracked or frozen pump bearings.

Replace auxiliary fire pump assembly (para. 3-13).

STEP 2. Check to see if temperature of bearings exceeds 200 .

Replace auxiliary fire pump assembly (para. 3-13).

Section V. INTERMEDIATE DIRECT SUPPORT MAINTENANCE PROCEDURES

3-10. General. This section provides direct support maintenance for the diesel

driven auxiliary fire pump, flexible shaft coupling assembly, and two electric

motor driven centrifugal fire pump units. To review the principles of operation

for the fire pump subsystem, refer to Chapter 1, Section III. Removal and

replacement tasks are given in the following paragraphs.

3-4