TM 9--2350--292--20--2
0643 00--1
AUXILIARY POWER UNIT WIRING HARNESS 3W704 REPLACEMENT (HATZ)
0643 00
THIS WORK PACKAGE COVERS:
Removal, Installation
INITIAL SETUP:
Tools and Special Tools
General mechanic’s tool kit (item 1, WP 0717 00)
Materials/Parts
Adhesive (item 102, WP 0716 00)
Marker tags (item 49, WP 0716 00)
Equipment Conditions
Battery power disconnected (WP 0256 00)
APU cover removed (WP 0413 00)
Removal
NOTE
Tag all electrical connections and electrical leads prior to
removal to aid in installation.
Where applicable, remove adhesive to expose desig-
nated electrical terminals.
1. Disconnect wiring harness 3W704 wire 420 (1) from oil pressure sending unit (2).
2. Disconnect wiring harness 3W704 wire 420A (3) from low oil pressure switch (4).
3. Disconnect wiring harness 3W704 wire 493 (5) at wire junction of lead assembly 3W705 (6) for high air tempera-
ture switch.
4. Remove wiring harness 3W704 (7) from APU assembly.
5. Inspect all parts for damage and replace as required.
1
2
6
5
7
4
3
