Piper Cherokee Six - Page 591

PIPER
CHEROKEE
SIX
SERVICE
MANUAL
ings
for
excessive
wear.
Remove
rust,
paint
or
grease
from
mounting
surfaces.
10-57.
BENDIX
DRIVE.
The
Bendix
Drive
should
be
wiped
clean
with
a dry
cloth.
The
pinion
should
turn
smoothly
in one
direction
and
should
lock
in
the
other
di-
rection.
Replace
drive
if
it
fails
to check
as
above
or
if the
pinion
teeth
are
ex-
cessively
worn
or
damaged.
10-58.
ASSEMBLY.
a.
When
assembling
the
starting
motor,
always
use
an arbor
press
and
the
proper
bearing
arbor
for
installing
graphitized
bronze
and
roller
bearings.
The
Bendix
shaft
should
have
a
thin
film
of
Lubriplate
#777
or
equivalent
on
the
Bendix
portion
of
the
shaft.
End
play
should
be
.005
to
.050
of
an
inch.
b.
New
brushes
should
be
properly
seated
when
installing
by wrapping
a
strip
of
00
sandpaper
around
the
commutator
(with
the
sanding
side
out)
1-1/4
to
1-1/2
times
maximum.
Drop
brushes
on
sandpaper
covered
commutator
and
turn
the
armature
slowly
in
the
directionof
rotation.
Dust
should
be
blown
out
of
the
motor
after sanding.
NOTE
The
spring
tension
is
32
to
40 ounces
with
new
brushes.
This
tension
is
measured
with
the
scale
hooked
under
the
brush
spring
near
the
brush
and
the
reading
is
taken
at
right
angles
to
the
line
of
force
exerted
by
the
brush
spring.
377
c.
Check
the
position
of
the
pinion
to
be
sure
the
unit
willmesh
properlywith
the
flywheel
ring
gear.
See
specifica-
SWITCH
ti ETE
tions
for
unit
for
correct
dimensions.
N PLL
Refer to
paragraph
10-61.
10-59.
BENCH
TESTS.
a. After
the starting
motor
is
reas-
BT
TY
TTER
sembled,
it should
be tested
to see that
R
TACETEOMER
the
no-load
current
at
a
certain
voltage
STATINING
OTOT
is
within
specifications
as given
in
para -
graph
10-61.
To
make
this
test,
con-
Figure
10-31.
No-Load
nect
as
shown
in Figure
10-31.
If
cur-
Test
Hook-up
rent
is too
high,
check
the
bearing
a-
ELECTRICAL
SYSTEM
Revised:
6/18/76
3C15