TM 9--2350--292--20--1
0020 00--1
AUXILIARY POWER UNIT ENGINE HARD TO START IN COLD WEATHER.
0020 00
THIS WORK PACKAGE COVERS:
Auxiliary Power Unit Engine Hard To Start In Cold Weather
INITIAL SETUP:
Tools and Special Tools
General mechanic’s tool kit (item 1, WP 0717 00)
Multimeter (item 84, WP 0717 00)
Materials
Adhesive (item 25, WP 0716 00)
Equipment Conditions
Vehicle MASTER switch OFF (TM 9--2350--292--10)
APU cover removed (WP 0413 00)
Personnel Required
Two
A
WARNING
Remove rings, bracelets, wristwatches,
and neck chains before working on any
vehicle. Jewelry can catch on equip-
ment and cause injury, or may short
across an electrical circuit and cause
severe burns or electrical shock.
CONTINUED ON NEXT PAGE
NOTE
Remove sealant from electrical terminals to
ensure good contact for multimeter leads.
Apply adhesive to all exposed terminals after
troubleshooting is complete.
1. Disconnect lead 3W732 from preheater relay
and from glow plug.
2. Place multimeter leads across lead 3W732.
3. Check for continuity.
no
yes
Is continuity present?
Repair (WP 0290 00) or
replace (WP 0658 00)
lead 3W732. Verify fault
is corrected.
