TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Starting Motor (013-020)
Section 13 - Electrical Equipment - Group 13
Page 13-37
Rotation Check (013-020-052)
Barring Tool, Part No. 3824591
If the starter motor solenoid makes a sound, turn the switch
to the OFF position, and attempt to bar the crankshaft in
both directions.
Bar the engine using the barring tool, Part No. 3824591.
Bar the crankshaft as follows:
1. Direction of engine rotation
2. Direction opposite engine rotation
3. Direction of engine rotation.
If the crankshaft will over, attempt to start the engine. If the
starter motor cranks the engine, check the starter motor
pinion gear and flywheel ring gear for damage.
L-1295