Section Ill ORGANIZATIONAL PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

TM 11-6625-2975-12

3-4. PRELIMINARY SERVICING AND ADJUSTMENT. (CONT)

Test set is shipped from factory wired for 115 vat, 50/60 Hz operation. The input power identification

plate, located on the back of test set, should state this.

Test set can operate on 230 vac, 50/60 Hz input power when input wiring is changed. This is done at

next higher level of maintenance.

Plug power cable assembly into ac connector.

CAUTION

Before plugging power cable assembly into standard 115 vac outlet, make sure POWER

switch is in OFF position and check fuse F1 for correct rating for selected operating

voltage. To check fuse, do the following:

1. Press in on extractor fuse holder and rotate counterclockwise to unlock.

2. Pull extractor fuse holder and fuse F1 out of fuse holder.

3. Remove fuse F1 and inspect for correct rating.

NOTE

For 115 vac operation, fuse F1 must be rated at 4 amp, 120 v.

For 230 vac operation, fuse F1 must be rated at 2 amp, 250 v.

4. Install correct fuse F1 in extractor fuse holder.

5. insert fuse F1 and extractor fuse holder in fuse holder.

6. Push in on extractor fuse holder and rotate in a clockwise direction to lock in place.

Section Ill ORGANIZATIONAL PREVENTIVE MAINTENANCE CHECKS AND

SERVICES (PMCS)

Page

Para

Subject

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5

3-3

3-4

Organizational Preventive Maintenance Checks and Services .. . . . . . . . . . . . . . . . . . . . 3-6

Blower Filter Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7

Cleaning and Touchup Painting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

3-5

3-5. GENERAL.

To keep test set in proper operating condition, the following checks must be performed:

1. inspect test set for scratches and worn or bare spots.

2. Clean test set on a routine basis or whenever cleaning becomes necessary (para 3-8).

3. Check for frayed cables, loose, missing, or damaged parts.

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