INSTALLATION-continued - TM-11-5820-670-300249

TM 11-5820-670-30

2-41. A4000 MODULES AND ASSEMBLY REPLACEMENT. (CONT)

3. Position module (1) on board and install IT Iockwashers (2) and locknuts (3) on studs (4).

CAUTION

Care must be taken when performing next step to prevent damaging printed circuit

board. Do not overtighten.

4. Using wrench, tighten locknuts (3).

CAUTION

Before installing modules, ensure pins are not bent. Straighten any bent pins. Extreme

care must be taken not to damage pins.

NOTE

Modules A4100 through A4300 are secured with captive screws. Steps 5 and 6 are

typical for all modules.

Module location is stamped on board.

5. Position module (5) on pins (6) and push into place.

6. Using screwdriver, tighten captive screws (7).

2-157