AUXILIARY POWER UNIT (APU) -706880646

TM 5-4210-233-14&P-1

4-207. AUXILIARY POWER UNIT (APU)

This task covers:

a. Removal

c. Follow-on Maintenance

b. Installation

TOOLS REQUIRED

EQUIPMENT CONDMON

Tool Kit, General Mechanics, Automotive

Main Engine Shutdown (see para 2-12 .)

(Appendix B, Section III, item 1)

APU Shutdown (see para 2-16 .)

Batteries Disconnected (see para 4-114 .)

APU Air Cleaner Removed (see para 4-213 .)

a. Removal.

(1) Disconnect exhaust pipe (1).

(2) Remove four screws (2) and control box cover (3).

NOTE

Tag all wires before disconnecting them.

(3) Remove wire nut (4) securing black cable to white

wires #1 and #3.

(4) Remove one white and one green cable from mounting

nut (5).

(5) Remove wire #1674 from terminal #2 of decompression solenoid relay (6).

(6) Tag and remove the following wires from the remote control terminal block (7):

#1670M from #1 Terminal

#1671 from #2 Terminal

#1672 from #3 Terminal

#1673 from H Terminal

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