TM 9-4940-549-14&P
Wear asbestos gloves when handling fro-
zen flywheel and heated ring gear.
(d) Quickly install heated ring gear onto frozen flywheel.
Inspect flywheel housing for cracks, excessive corrosion, and
(4)
defective paint.
(5)
Repair cracks in flywheel housing by welding.
Remove corrosion from flywheel housing with No. 00 grit abra-
(6)
sive paper soaked in oil. Clean flywheel housing with dry clean-
ing solvent after removing corrosion.
(7)
Remove chipped paint, clean metal, and repaint as necessary.
(8)
Replace oil seal each time flywheel housing is removed.
Install flywheel and flywheel housing in reverse order
c.
Installation.
of removal procedures.
NOTE
One flywheel bolt is off center to in-
sure proper alignment.
(1)
Turn crankshaft to top dead center (TDC) position.
(2)
Attach a dial indicator to flywheel housing and position so that
foot rides on inner face of pilot bore (fig. 12-2).
Set dial indicator pointer to zero position.
(3)
(4)
Slowly rotate crankshaft one complete revolution.
Concentricity of pilot bore shall not vary 0.005 inch total
(5)
reading.
(6)
Position dial indicator so that foot rides on outer face of fly-
wheel (fig. 12-2).
(7)
Set dial indicator pointer to the "zero" position.
(8)
Slowly rotate crankshaft one complete revolution.
(9)
Alignment of flywheel shall not vary more than 0.005 inch total
reading.
(10)
Replace flywheel if the. above test requirements cannot be met.
12-4
