Piper PA-32RT-300T User Manual

LANCE II SERVICE MANUAL
TABLE 11-11.
RECOMMENDED
NUT TORQUES
TORQUES:
The
importance
of correct
application
cannot be
overemphasized.
Undertorque
can
result in
unnecessary
wear
of nuts
and bolts
as well
as the parts
they
are holding
together.
When
insufficient
pressures
are
applied.
uneven
loads will
be transmitted
throughout
the assembly
which
may
result in excessive
wear or
premature
failure
due
to fatigue.
Overtorque
can be
equally
damaging
because
of
failure
of a bolt
or nut
from
overstressing
the
thread areas.
The following
procedures
should
be followed
to assure
that the
correct
torque is
applied:
I.
Torque
(self-locking
fasteners)
-
Add the
friction
torque
from
Chart
A for
sizes 8
through
7 16
to
the recommended
torque
from Chart
B
to get
the final
torque.
This
would
be the
actual
reading
on
the torque
wrench.
2. Torque
(castellated
and
non-self-locking
nuts)
-
Use only
the torque
given
in
Chart
B. Unless
otherwise
specified.
when
castellated
nuts
are used
with
a cotter
pin
on moving
joints.
do
not torque
the nut.
Turn the
nut onto
the bolt
until
proper grip
is established
and alignment
with
the cotter
pin
hole
is achieved.
Then
install
the cotter
pin.
GENERAL
REQUIREMENTS:
1.
Calibrate
the
torque
wrench
periodically
to
assure
accuracy:
recheck
frequently.
2. Ascertain
that the
bolt
and nut
threads
are
clean
and dry
(unless
otherwise
specified
by
the
manufacturer).
If the bolt
or nut
is specified
to
be lubricated
prior
to tightening.
the torque
range
should
be
reduced
50 percent.
3.
Use
a bolt
length
long
enough
to prevent
bearing
loads
on the
threads.
The
complete
chamfer
or end
radius
of the
bolt or
screw must
extend
through
the
nut.
4. Unique
torques
specified
in
the text
of this manual
supersede
the torques
given
in Charts
A and
B.
5.
Refer
to the
latest revision
of Lycoming
SSP 1776
for torques
on parts
used
on Lycoming
engines.
6.
A maximum
of two
AN960
washers
may
be added
under
the
bolt heads
or
nuts to
correct
for
variations
in material
thickness
within the tolerances
permitted.
7.
Limitations
of the use
of self-locking
nuts.
bolts
and screws
including
fasteners
with
non-metallic
inserts
are
as
follows:
A.
Fasteners
incorporating
self-locking
devices
shall not
be reused
if
they can
be run
up using
only
fingers.
They
may
be
reused
if hand
tools
are required
to run
them
up, providing
there
is no
obvious
damage
to
the
self-locking
device
prior
to
installation.
B.
Bolts
5 16
inch
diameter
and
over
with
cotter
pin
holes
may
be used
with
self-locking
nuts.
Nuts
with non-metallic
locking
devices
may
be used
in this
application
only if
the bolts
are
free
from
burrs
around
the cotter
pin hole.
C.
Do
not
use self-locking
nuts
at
joints
which
subject
either
the nut
or the
bolt
to
rotation.
D.
Never
tap or
rethread
self-locking
fasteners.
Do
not
use nuts.
bolts
or
screws
with
damaged
threads
or
rough ends.
Revised:
11/1/83
HANDLING
AND
SERVICING
1B3

Piper PA-32RT-300T Specifications

General

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