TM 1-1500-204-23-4
(a) Starters removed from aircraft. Inspect
the starter as follows:
1
Inspect starter for dents and
cracks.
2
Inspect starter for stripped or
damaged threads.
3
Inspect drive shaft spline for
excessive wear.
4
Inspect for smooth rotation and
axial/radial play of bearings.
5
Inspect electric starters for the
following:
·
Starter brushes for freedom of
movement in brush holders.
·
Brush leads for deterioration
and chaffing.
·
Brushes for wear.
·
Commutator for evidence of
arcing and presence of metal
particles.
6
Inspect air-turbine starters for
the following:
·
Metal particles on drain plug.
·
Nozzle vanes that are broken.
·
Oil level.
·
Extemal oil leakage.
7
Inspect hydraulic starters tor the
following:
·
Hydraulic fluid leakage.
·
Proper
operation
of
accumulator.
NOTE
Consult applicable maintenance
manual
for
specific
allowable
limits for starter brushes.
(b)
Starters
installed
on
aircraft.
Inspect the starter as follows:
1
Open
engine
cowling
as
required.
2
Inspect all parts for obvious
signs of wear, cracks, distortion, corrosion, and other
damage.
3
Inspect commutator for arcing
and wear, using a mirror and bright light.
4
Inspect
brush
retainers
for
breaks and unseated condition, using a mirror and bright
light.
5
Inspect
brush
heads
for
condition, using a mirror and bright light.
6
Inspect mounting location and
torque.
7
Inspect for fluid leakage.
8
Close cowling.
(3)
Replacement
criteria.
Starter
replacement criteria are as follows:
·
Replace
when
any
unusual
bearing or gear noises are
detected during operation.
·
Replace when commutator bars
are rough, scored, pitted, loose,
high, or worn to the depth of
insulating mica between bars.
·
Replace
brushes
that
are
cracked,
broken,
chipped,
unevenly worn, or worn beyond
maximum wearing depth slot.
·
Replace
when
magnetic
particles on drain plug are
coarser than fuzzy, such as
chips, slivers, etc.
·
Replace when there are intemal
starter malfunctions.
·
Replace when seal assemblies
are leaking.
Change 3 3-16
