STARTING SYSTEM TESTS CONTINUED
Test Step 3. Measure Current Sent to Starting Motor Solenoid from Positive Post of Battery.
1. Connect clamp of ammeter (Figure 2, Item 2) around positive battery cable (Figure 2, Item 5) connected to
starter motor (Figure 2, Item 6) with the arrow (Figure 2, Item 1) on the ammeter clamp facing in the direction of
current flow (towards starter).
2. Set the dial on the ammeter (Figure 2, Item 3) on the 1200 DC amp scale. Press the zero button (Figure 2,
Item 4) to zero the meter.
Figure 2. Starter Cable.
C AU T I O N
Do not crank engine for more than 30 seconds. Allow starter to cool for two minutes before
cranking again. Never turn disconnect switch off while engine is running. Failure to follow
this caution may result in damage to equipment.
3. With an assistant, monitor and record the maximum amperage on ammeter (Figure 2, Item 3), while attempting
to crank the engine (TM 5-2410-241-10).
a. If current is 65 to 750 amps, remove and inspect starter for wear and damage (WP 0061). Also, inspect
flywheel for wear and damage (WP 0100). Replace starter and/or flywheel as necessary.
b. If current is greater than 750 amps, replace starter motor (WP 0061).
If current is less than 65 amps, proceed to Test Step 4.