TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3.
ENGINE FAILS TO CRANK - 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 15.
Set multimeter to ohms scale and adjust to 0 ohms. Connect red test lead to terminal (1) on solenoid
(2) and black test lead to terminal (3) on primary magnetic switch (4). Check for 0 ohms on
multimeter. Disconnect test leads.
a.
If multimeter reads no continuity, 17B wire (5) must be replaced.
Notify Direct Support Maintenance.
b.
If multimeter reads 0 ohms, go to step 16.
Step 16.
Connect batteries (2-424). Set multimeter to 20 vdc scale. Connect red test lead to terminal (6) on
primary magnetic switch (4) and black test lead to ground. Check for 11 to 13 vdc on multimeter.
Disconnect test leads.
a.
If multimeter does not read 11 to 13 vdc, go to step 17.
b.
If multimeter reads 11 to 13 vdc, go to step 18.
Step 17.
Disconnect batteries (page 2-424). Set multimeter to ohms scale and adjust to 0 ohms. Connect red
test lead to terminal (7) on solenoid (2) and black test lead to terminal (6) on primary magnetic switch
(4). Check for 0 ohms on multimeter. Disconnect test leads.
a.
If multimeter reads no continuity, 14-6 wire (8) must be replaced.
Notify Direct Support Maintenance.
b.
If multimeter reads 0 ohms. Connect batteries (page 2-424) and go to step 18.
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