Remove Pulley,
Fan
and Spacer:
The pulley is a slip-fit
on
the rotor shaft, positioned with a Woodruff
Key.
Remove the nut and
lockwasher from the shaft using
an
impact wrench or other suitable tool.
After nut and lockwasher are removed the alternator can
be
separated from the pulley.
The
fan
will slide over the
key.
The key may be removed with diagonal pliers, or with a screwdriver.
Inspect the fan for cracked or broken fins, note the condition of the mounting hole. If worn from
running
loose, replace the
fan
to insure balance.
Inspect pulley
for possible faults as listed
in
illustration below.
PULLEY REMOVAL
Separate Rotor from Front Housing:
CHECK
FOR WORN
DRIVE SURFACES.
CHECK FOR POLISHED
SURFACE
HERE.
NOTE CONDITION OF -------1==;:===1
KEY GROOVE.
CHECK BORE
FOR
WEAR.
PULLEY
INSPECTION POINTS
Position front housing
on
support blocks placed
on
an
arbor press. Push rotor assembly from
housing.
See illustration below.
ROTOR
SHAFT
I---PRESS
/
FRONT
HOUSING
SEPARATING
ROTOR
FROM FRONT HOUSING
92
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