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 TM 55-1905-220-14-10
5-41. FLYWHEEL AND HOUSING-MAINTENANCE INSTRUCTIONS (Cont).
INSTALLATION
2. Flywheel
a. Support the flywheel-ring gear
ring gear
side up-on a solid flat surface.
b. Rest ring gear on a flat, metal
surface and heat the gear uniformly
with an acetylene torch, keeping
the torch moving around the gear
to avoid hot spots.
Do not, under any circumstances, heat the gear over 400
F
(204 ), as excessive heat may destroy the original heat
C
treatment.
NOTE
Heat indicating "crayons", which are placed on the ring gear and
melt at a predetermined temperature, may be obtained from
most tool vendors. Use of these "crayons" will ensure against
over-heating the gear.
c. Use a pair of tongs to place the
gear on the flywheel with the chamfer
facing the same direction as on the
gear just removed.
d. Tap the gear in place against the
shoulder on the flywheel. If the
gear cannot be tapped into place
readily, remove it and apply
additional heat, noting the above
caution.
5-611
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