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

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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

Coolant

Check corrosion inhibitor and antifreeze concentration. Use the DCA check kit, Item 14,

Appendix C. The system is treated with corrosion inhibitor and antifreeze (to-20F) at

delivery.

Clean the engine by performing the following steps.

CAUTION

Be sure that all access covers, filters, oil dipstick, and filler caps are in place

before cleaning engine. Protect electrical connections by covering with plastic or similar

waterproof material and securing with tape.

Protect surrounding areas with tarpaulins, plastic sheeting, or similar material before

cleaning the engine. Use steam or high pressure hot water to remove all dirt and grease

from engine exterior. Be sure to clean areas hidden by external components, such as

behind filter assemblies, starter, etc.

Engine Mountings

Check for and replace any broken or missing bolts, nuts, and washers. Check mountings for

cracks and corrosion. Tighten bolts to 230 ft-lb.

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