REPLACE PMC COMMUNICATIONS CABINET FAN ASSEMBLY

TM 5-6350-275-24&P

(3)

Remove protective cover (Figure 3-34, 1) from power supply (3) terminal board by removing two screws (2)

holding cover to standoffs.

(4)

Tag and remove wires from power supply (3) input terminal board.

(5)

Remove four screws (4) holding power supply (3) to side of cabinet B.

b. Installation

(1)

Secure power supply (3) to side of cabinet B with four screws (4).

(2)

Connect tagged wires to power supply (3) input terminal board.

(3)

Replace protective cover (1) over power supply terminal board and secure with two screws (2).

(4)

Connect power supply ac power cord to ac power source.

(5)

Place power supply A switch (Figure 3-33, 14) and power supply B switch (10) to on.

3-29. REPLACE PMC COMMUNICATIONS CABINET FAN ASSEMBLY. (Figure 3-35).

This task consists of:

a. Remove

b. Install

INITIAL SETUP:

Tools:

Equipment Condition:

Screwdriver, Flat tip (Item 6, App B)

PMC cabinet doors open

Materials/Parts:

General Safety Instructions:

Fan Assembly

Remove all jewelry while working on equipment.

WARNING

When working on high-voltage components, always have an additional person present, and keep one hand

away from equipment to reduce hazard of current flowing through vital organs of body. Remove all

jewelry from fingers, wrists, and neck before working on electrical components.

Shut off power source before attempting to disconnect, service, or connect wires or cables. Failure to do

so may result in serious injury or death.

a. Removal

(1)

Remove cover plate (1) on top of cabinet by unscrewing thumb screws (2).

(2)

Pry plastic fan guard (3) out of retaining slots with small screw driver.

(3)

Remove fan retaining screws (4) from inside cabinet.

(4)

Remove wire nuts (5) from wires.

(5)

Remove fan (6).

3-104