Table 2-1. Preventive Maintenance Checks and Services (PMCS)

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Table 2-1. Preventive Maintenance Checks and Services (PMCS)

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

Table 2-1. Preventive Maintenance Checks and Services (PMCS)

TM 55-1905-223-24-5

Table 2-1. Preventive Maintenance Checks and Services (PMCS)

D-Daily

M-Monthly

Q-Quarterly

A-Annually

B-Biennially

Item

Interval

Items To Be

No.

DMQAB

Inspected/Serviced

Procedures

Safety controls continued

c. Disconnect the sending device from the main oil rifle

on the fuel pump side of the engine and use a sending

device of known accuracy to verify the reading of the

suspect unit.

Injectors

Replace injectors (paragraph 2-35).

Water Pump

Replace the water pump (paragraph 2-29).

Turbocharger Bearing

Check the bearing radial and axial clearances.

Remove the shield and piping from the turbocharger.

Measure the axial (erg-to-end) clearance of the shaft with a dial indicator. Clearance

should be not greater than 0.018 inch (0.46 mm).

Use a wire feeler gauge and measure the radial (side-to-side) clearance. Hold the shaft

toward the feeler gauge to check. The clearance should be no greater than 0.033 inch

(0.84 mm).

Replace the turbocharger if either measurement exceeds specifications above, Refer to

NOTE

This procedure is to be performed

after every 50 hours of operation.

Change 2

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