Table 2-1. Preventive Maintenance Checks and Services - continued

Custom Search

Table 2-1. Preventive Maintenance Checks and Services - continued

TM-55-1905-223-24-1 Main Propulsion Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

Table 2-1. Preventive Maintenance Checks and Services - continued

TM 55-1905-223-24-1

Table 2-1. Preventive Maintenance Checks and Services

D-Daily

Q-Quarterly

A-Annually

B-Biennially

Item

Intervals

Items To Be

No.

DQAB

Inspected/Serviced

Procedures

Safety Controls

Check high temperature water control (TM 55-1905-223-10):

a. Remove sensing unit from water passage.

b. The opening of the circuit can be checked against a thermometer, while immersed in water,

as the water is heated to activate temperature control.

The warning horn should sound at about 200 (93 ).

Check low lube oil pressure protective device (TM 55-1905-223-10):

a. With engine shut down, remove protective device from engine block and reconnect the wire.

b. With shutoff valve in oil pressure line open and bleed valve closed, operate engine at rated

speed and no load.

Open bleed valve and purge air from system.

d. Close bleed valve and record oil pressure on instrument panel oil pressure gauge. Close

shutoff valve.

e. Observe the instrument panel oil pressure gauge and slowly open bleed valve until

protective device sounds the warning horn.

Sensing unit should activate when pressure is lowered below operating level.

Water Pump

Replace water pump every 24 months or every 2000 hours,

whichever comes first.

2-17