TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE CRANKS BUT FAILS TO START BELOW 500F (180C) - CONTINUED.
WARNING
Although KEY SWITCH must be on and battery ground cable connected to test electrical circuit
voltage, turn off KEY SWITCH and disconnect battery ground cable before doing resistance tests
or replacing parts. This will keep you from getting shocked and prevent damage to parts and
equipment.
Step 5.
Inspect 18A-10 wire (1) for loose, corroded, frayed, or broken condition.
a. If 18A-10 wire (1) is loose at terminal stud (2), tighten nut (3) using
3/8-inch open-end wrench.
WARNING
Safety goggles must be worn when using wire brush. Flying dust or metal particles could cause
eye injury.
b. If wire terminal (4) is corroded, unscrew and take off nut (3) and
wire (1) from terminal stud (2) using 3/8-inch open-end wrench.
Clean wire (1) and terminal stud (2) using wire brush and go to
step 6.
c. If 18A-10 wire (1) is frayed or broken, repair (page 2-424).
d. If 18A-10 wire (1) is not loose, corroded, frayed, or broken go to
step 6.
Step 6.
Test 18A-10 wire (1) as follows: Disconnect batteries (page 2-424). Set multi-
meter to ohms scale and adjust to 0 ohms. Connect red test lead to wire terminal
(4) and black test lead to wire terminal (5) on glow plug (6). Check for 0 ohms
on multimeter. Disconnect test leads.
a. If multimeter reads no continuity, 18A-10 wire (1) must be replaced.
Notify Direct Support Maintenance.
2-50
