TM 9--2350--292--20--1
0018 00--14
AUXILIARY POWER UNIT FAILS TO CRANK -- CONTINUED
0018 00
CONTINUED FROM STEP AE
no
yes
Is continuity present?
Repair (WP 0290 00) or replace
(WP 0647 00) 3W706 lead 66A.
Verify fault is corrected.
CONTINUED ON NEXT PAGE
AF
no
yes
Is 24 V dc present?
Repair (WP 0290 00) or replace
(WP 0649 00) harness 3W711
ground wire. Verify fault is corrected.
AG
1. Reconnect lead 3W727 to starter relay
terminal X2.
2. Turn MASTER switch ON
(TM 9--2350--292--10).
3. Turn PREHEAT switch to MOM ON
(TM 9--2350--292--10).
4. Turn START switch to MOM ON
(TM 9--2350--292--10).
5. Place multimeter red lead to starter relay
terminal A1 and black lead to ground.
6. Check for voltage.
7. Turn MASTER switch OFF.
CONTINUED FROM STEP AA
1. Disconnect harness 3W706 lead 66A from
generator terminal B+ and from starter relay
terminal A1.
2. Place multimeter leads across 3W706 lead
66A
3. Check for continuity.
