Repair Heater, Space, Electric (Units #3, #5, #6, and #7). (FIGURE 3-6)

TM 55-1905-223-24-17

3-15. Repair Heater, Space, Electric (Units #3, #5, #6, and #7). (FIGURE 3-6)

This task covers:

a. Repair.

INITIAL SETUP :

Tools

Equipment Condition

Tool kit, general mechanic's,

Circuit breaker switched OFF, power

panel locked and tagged "Out of

Tool kit, electrician's,

Service - Do Not Operate."

See TM 55-1905-223-10 for HVAC systems

Materials/Part

operation and equipment location.

Tags, Item 1, Appendix C

Ventilating fan P/N M130-011

(Units 3 and 5)

Ventilating fan P/N M130-011

(Units 6 and 7)

REPAIR

Repair consists of replacing the ventilating fan.

WARNING

Make sure electrical power is OFF to avoid personal injury.

Turn electrical power to heater OFF.

Tag and disconnect electrical power supply wiring to heater (1).

Replace ventilating fan as follows:

(1)

Remove screws (4) to separate the control box (6) from the heater cover (2). Lower the

terminal box (6) just enough to access the element wiring. Tag and disconnect the element

wiring and remove the terminal box (6).

(2)

Tag and disconnect electrical wiring to ventilating fan motor inside terminal box (6).

(3)

Remove the ventilating fan (7) with impeller (8) attached. Remove the impeller from the

motor.

(4)

Install impeller onto motor shaft.

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