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Page Title: ENGINE FAILS TO CRANK WHEN STARTER IS ENGAGED WARNING (cont)
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TM 5-2420-222-20-1
ORGANIZATIONAL TROUBLESHOOTING CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE FAILS TO CRANK WHEN STARTER IS ENGAGED CONTINUED
WARNING
Although ignition lock switch must be on and battery ground cable connected to test
electrical circuit voltage, turn off ignition lock 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 21.
Using multimeter set to 30 vdc scale, place red probe on starter switch terminal (1) and black probe
on box (2). Check for 11 to 13 vdc on multimeter.
a. If multimeter reads 11 to 13 vdc, go to step 22.
b. If multimeter reads less than 11 vdc, turn ignition lock switch (3) counterclockwise to off. Repair
wire from starter switch to starter neutral safety switch (page 2-137).
Step 22.
Using multimeter set to 30 vdc scale, place red probe on starter switch terminal (4) and black probe
on box (2). Have assistant push in and hold starter switch (5) for a few seconds. Check for 11 to 13
vdc on multimeter. Turn igni,ion lock switch (3) counterclockwise to off.
a. If multimeter reads 11 to 13 vdc, repair wire from starter switch to solenoid (page 2-137).
b. If multimeter reads less than 11 vdc, replace starter switch (page 2-571).
Step 23.
Remove starter (page 2-460). Look for broken teeth on pinion (6). Check that pinion (6) turns only
in one direction.
a. If teeth on pinion (6) are not broken and it turns only in one direction, notify Direct Support
Maintenance.
b. If teeth on pinion (6) are broken or it turns in both directions, replace starter (page 2-460).
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