T. O. 35C2-3-442-2
P-9-TM-457-35
TM-07464A-35
TM 5-6115-457-34
CAUTION
c. Flush out turbo drain port in housing
with solvent and dry with low pressure
Under no circumstances should the
compressed air.
ring gear (11, figure 8-57) be
heated over 600F as excessive
8-200. INSPECTION.
heating may destroy the original
heat treatment. Do not heat
a. Inspect flywheel housing for cracks.
ring gear in one area.
Replace cracked flywheel housing.
2. Heat new ring gear to a maximum
b. Check machined gasket surface at
ring of flywheel housing for nicks and burrs.
of 600F. Use a torch and apply heat
evenly around diameter of ring gear.
c. Inspect threaded holes for damaged
3. Install ring gear with chamfered
threads.
portion of ring gear teeth facing toward
d. Inspect ring gear teeth for nicks,
starter pinion or to backside of flywheel.
burrs, cracks, and broken teeth. Nicks
Gear must be flush with flywheel shoulder.
and burrs that extend below the hardened
surface of the gear teeth are cause for
CAUTION
rejection of the gear. Replace ring gear if
Be careful to remove only the
cracked or if teeth are broken.
burred material on the edge of the
coupling disc counterbore.
e. Inspect ring gear for wear that may
have destroyed the original tooth shape.
d. Remove sharp edges and burrs from
If this condition is found, replace gear.
coupling disc counterbore in flywheel using
a suitable file,
f. Inspect coupling disc counter bore
on flywheel for burred edges or an indica-
8-202. REASSEMBLY.
tion that coupling disc on generator does
not seat properly.
Refer to figure 8-57 and reassem-
ble flywheel and flywheel housing group in
g. Discard seal and gaskets.
the reverse order of index numbers
assigned. Pay particular attention to the
8-201. REPAIR.
following:
a. Remove minor nicks and burrs from
a. Bottom edges of housing gasket
flywheel housing and ring gear teeth,
(22) that contacts oil pan plate must be cut
using a suitable file or hone.
square and flush with oil pan plate before
flywheel housing is secured to crankcase.
b. Repair minor thread damage using
a suitable thread chaser.
b. Install two
suitable pilot studs in
cylinder block to
act as guide pins while
c. Replace a defective ring gear as
flywheel housing
is hoisted into position and
follows:
located on dowel
pins.
1. Cut or press off defective ring
c. Install crankshaft seal (13) as
gear.
follows :
8-121
