Alternator; Alternator Installation - Superior Vantage Engine O-360 SERIES Maintenance Manual

Alternator

Improper functioning of the alternator is typically
indicated by a low or no voltage indicated in the
aircraft.
Before performing maintenance on the alternator
or alternator belt, ground magneto P-leads
and disconnect ignition harness "B" nuts
from spark plugs.
Alternator Belt Tension Adjustment and
Replacement
There are two methods of checking belt tension.
The belt tension may be verified by determining
the load at midspan required to deflect the belt
by 0.31 inch. An alternate method of checking
belt tension is by measuring the torque required
to slip the belt at the small pulley. Refer to table
72-10-01.1 below.
© March 2006 Superior Air Parts Inc.
Maintenance Manual
O-360 and IO-360 Series Engines
Figure 72-10-00.2 • Alternator Installation
WARNING: DO NOT INSTALL THE IGNITION
HARNESS "B" NUTS ON THE SPARK PLUGS
UNTIL THE INSTALLATION IS COMPLETED.
FAILURE TO COMPLY COULD RESULT IN
BODILY INJURY WHEN THE PROPELLER IS
ROTATED DURING INSTALLATION.
The tension adjustment arm connecting the
crankcase to the alternator is adjustable to allow
movement of the alternator to maintain tension
of the drive belt.
below.
Loosen the bolt connecting the adjustment arm
to the alternator. This allows movement of the
alternator to adjust belt tension.
alternator outward, away from the engine,
increases belt tension and movement inward
reduces tension. Adjust alternator location
appropriately, torque
appropriately, and check for required belt
tension. Readjust, as necessary, to meet
tension required.
3
Refer to Figure 72-10-00.2
Moving the
adjustment arm
72-10-00
Front Section
bolt