TM-9-2320-272-23-2

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-2 - Page 539 of 1417

REMOVAL

CAUTION

Do not use timing pin to prevent engine from turning. Doing so may cause damage to timing

pin.

NOTE

Assistant will help with this procedure.

1.

Using engine barring tool, prevent crankshaft (Figure 1, Item 10) from turning.

2.

Remove eight screws (Figure 1, Item 9), clamping ring (Figure 1, Item 8), flexplate (Figure 1, Item 7), and

crankshaft adapter (Figure 1, Item 6) from crankshaft (Figure 1, Item 10).

3.

Remove 12 screws (Figure 1, Item 5), flywheel housing (Figure 1, Item 4), and gasket (Figure 1, Item 3) from

rear cover (Figure 1, Item 11). Discard gasket.

NOTE

Perform Step (4) if dowel pins are damaged.

4.

Remove two dowel pins (Figure 1, Item 2) from engine block (Figure 1, Item 1).

TM 9-2320-272-23-2

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