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TM10-3930-660-20
(5)
(6)
(7)
Inspect all pipe plugs, pipe plug openings, screws, and screw openings for
damaged or stripped threads.
Check all gasket mating surfaces, flanges on housings, and supports for
warpage with a straightedge or surface plate.
Inspect mating flanges for
discolorations that may indicate persistent oil leakage.
Check all castings for conformance to applicable repair standards.
e.
Bearinqs. Refer to TM9-2L4 for inspection of bearings.
Check all bearings
for conformance to applicable repair standards.
f.
Studs, Bolts, and Screws.
Replace if threads are damaged, bent, loose or
stretched.
g.
Gears.
(1)
(2)
(3)
When gear teeth wear limits are not established, good
judgement is required to determine if gear replacement
is necessary.
Inspect all gears for cracks using a magnifying glass and strong light. No
cracks are permissible.
Inspect gear teeth for wear, sharp fins, burrs, and galled or pitted
surfaces.
Check keyway slots for wear or damage.
h.
Bushings and Bushing Type Bearings.
(1) Check all bushings and bushing type bearings for secure fit, evidence of
overheating, wear, burrs, nicks and out-of-round condition.
Replace as
necessary.
(2) Check for dirt in lubrication holes or grooves.
Holes and grooves must be
i.
j.
k.
1.
m.
n.
clean and free from damage.
Oil Seals.
Oil seals are mandatory replacement items.
Core Hole Exansion Plugs. Inspect for leakage.
Replace plugs when leakage
is present.
Machine Tooled Parts.
Inspect for cracks, breaks, elongated holes,
chips.
Replace any damaged parts.
Machined Surfaces.
Inspect for cracks, evidence of wear, galled or
surface, burrs, nicks, and scratches.
wear and
pitted
Mated Surfaces.
Inspect for remains of old gasket, seal, secure fit, pitting
and evidence of leakage.
Rusted Surfaces.
Inspect for pitting, holes and severe damage.
3-6
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