TEST OR INSPECTION
Perform Operator PMCS and Troubleshooting (TM 5-2420-222-10), and Organizational
PMCS (page 26), before performing Organizational Troubleshooting.
1. ENGINE FAILS TO CRANK WHEN STARTER IS ENGAGED 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.
Do not operate electric starting motor for more than 20 seconds at a time. Allow two
minutes for cooling before using starter again to prevent overheating.
Have assistant turn ignition lock switch (1) clockwise to ignition. Have assistant push in and hold
starter switch (2) for a few seconds. Listen to starter (3) and solenoid (4) for grinding, thumping, or
spinning noise. Turn ignition lock switch (1) counterclockwise to off.