Table 1. Operator Preventive Maintenance Checks and Services - continued

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Table 1. Operator Preventive Maintenance Checks and Services - continued

TM-55-1925-273-10-2 Inland and Coastal Large TUG (LT) NSN 1925-01-509-7013 (EIC XAG) Manual

Table 1. Operator Preventive Maintenance Checks and Services - continued

TM 55-1925-273-10-2

0160 00

Table 1. Operator Preventive Maintenance Checks and Services (continued)

ITEM INTERVAL MAN-

ITEM TO BE

PROCEDURE

EQUIPMENT

NO.

HOUR

CHECKED OR

NOT READY/

SERVICED

AVAILABLE IF:

Weekly

0.2

MAGNETIC

a. When underway, check heading

COMPASS

against gyro on two known courses.

b. Check deviation whenever metal

structural changes are made to the

vessel, or when electronic equipment is

added/removed.

c. Check that the deviation card is

current and that the annual deviation

card is located in immediate vicinity

of the compass.

d. Check the compensating magnets,

Magnetic compass is

and if damage is found, refer to unit

inoperative and/or

maintenance.

the compass will

not swing freely in

its gimbal.

Magnetic

Compass

Magnetic

Compass

Viewer

0160 00-8