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b. Lubrication
The generator should
be lubricated
every 100 hours of operation. Place
three to
five drops
of light
en-
gine oil
in the
oil cups
at each
end of
the generator.
Do not over
oil.
c. Cleaning Commutator
(1)
Remove generator
from
engine
as described in
subparagraph a
(1)
through
(5)
above.
(2)
Loosen
clamping screw
and re-
move headband.
(J)
Remove brushes from holders.
(4)
Hold
a piece
of 00
sandpaper
against
commutator and
rotate ar-
mature until commutator is clean.
(5) Blm'l
out
place
brushes
headband,
and
engine.
sand
and
dust, re-
in
holders, replace
install
generator on
4. STARTER MOTOR MAINTENANCE
With
the
exception
of
periodic
lubrication and occasional replace-
ment of brushes and cleaning of the
commutator,
the
starting
motors
used on
UNIVERSAL engines will
re-
quire
very
little
maintenance
0
Every starting
motor
is
equipped
with a
Bendix
drive which acts as
an automatic
clutch
that
engages
the starting motor
uith the engine
fl~vheel
when the motor cranks the
engine and disengages
when the en-
gine starts.
This drive
should be
inspected once each season and worn
parts
replaced.
If trouble
of a
major
nature is
encountered
the
starting motor
should
be sent
to
the UNIVERSAL factory for repair.
a. Replacement of Brushes
If brushes
have become oil
soaked
or have worn
to less than one-half
of
their
original
length,
they
should be replaced.
-48-
(-1)
Disconnect start ing motor wir ing.
(2) Remove bolts
holding
starting
motor to
fl~vheel
housing.
(J)
Remove
~otor
from housing.
(4) Loosen
the clamping
screw and
slide head band off motor.
(5)
Remove
brushes
from
holders.
If brush
lead is
riveted to brush
holder, remove the rivet.
If brush
lead
is
soldered
to
field
coil
line,
unsolder and
bend open
the
loop on the field coil lead.
(6)
Install
new brushes.
Be
sure
bevel of brush fits the commutator.
(7) Draw
a piece
of 00
sandpaper
between
the
brushes
and in
the
direction
of
the brush holder
to
properly
seat
the
brush
against
the commutator.
See Fig.
61.
(8) Blowout sand and
dust and re-
place motor on engine.
b. Cleaning of Commutator
(1) Remove starting
motor from en-
gine and remove brushes from
brush
holders
as described
in
subpara-
graph a (1) through
(4).
(2) Hold
a piece
of 00
sandpaper
against
the commutator
and rotate
armature until commutator is clean
c
(J)
Blowout sand and dust, replace
brushes in holders, replace headband,
and install
starting motor
on en-
gine.
c. Bendix Drive liaintenance
(1) Remove starting
motor from en-
gine,
remove head band and brushes
as described above.
(2) Remove the pinion housing hold-
ing screws.
(J)
Pull arcature and pinion housing
from the mot or.
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