Piper PA-32RT-300T User Manual

LANCE
II SERVICE
MANUAL
11-45.
CHECKING
ALTERNATOR
BELT
TENSIONS.
(NON-AIROONDITIONING
INSTALLATIONS)
If properly
installed,
tensioned
and
checked
periodically,
the alternator
drive
belt
will
give very
satisfactory
service.
However,
an improperly
tensioned
belt will
wear
rapidly
and
may
slip and
reduce
alternator
output.
Consequently,
a belt
should
be checked
for
proper
tension
at the
time
it is installed,
again after
25 hours
operation
and each
100
hour inspection
thereafter.
The
method
for checking
alternator
belt
tension
is described
below:
Torque
method:
This method
of checking
belt
tension consists
of measuring
torque
required
to slip
the belt
at the
small pulley
and
is accomplished
as follows:
a.
Apply
a torque
indicating
wrench
to the
nut that
attaches
the pulley
to
the
generator
and turn
it in a clockwise
direction.
Observe
the torque
shown on
the wrench
at
the instant
the pulley
slips.
b. Check the
torque indicated
in step
(a) with
torque specified
in the
following chart.
Adjust
belt
tension
accordingly.
Width
of Belt
3/8
inch
3/8
inch
1/2
inch
1/2
inch
Condition
Torque
indicated at
alternator
pulley
New
Used
New
Used
11 to 13 ft. lbs.
7 to
9 ft. lbs.
13 to
15 ft.
lbs.
9 to 11 ft. lbs.
NOTE
The higher
tension specified
for a new
belt is to compensate
for
the initial
stretch
that
takes
place as
soon as
it is
operated. These
higher
tension values
should not
be applied
to belts which previously
have been
used.
Issued: 1/3/78
ELECTRICAL
SYSTEM
2622

Piper PA-32RT-300T Specifications

General

Brand	Piper
Model	PA-32RT-300T
Category	Aircrafts
Language	English