LANCE
II
SERVICE
MANUAL
10-76.
REMOVAL
AND REPLACEMENT
OF FACE
MOUNTED
INSTRUMENTS.
10-77.
GENERAL.
Since all
instruments
are mounted
in a similar manner,
adescription
of a
typical
removal and
installation
is provided
as a guide for
the removal
and installation
of the
instruments. Special
care should be taken
when any operation
pertaining to
the instruments is
performed.
a.
Remove the
face panel
by removing
the screws
from around
the perimeter
of the
panel.
b. With the
face panel removed,
the mounting screws
for the individual
instruments will
be
exposed. Remove the
connections to the
instrument prior
to removing the mounting
screws
of the instrument
to
be removed.
NOTE
Tag instrument
connections
for
ease of installation.
c.
Installation of the
instruments will
be in the reverse
given for removal.
After the
installation
is completed
and before replacing
the instrument
face panel, check all
components
for security
and
clearance
of the control
column.
10-77A. GYRO
FITTING
INSTALLATION
PROCEDURE.
The use of teflon
tape on.the fitting
threads is recommended
and should
be installed as
follows:
CAUTION
Permit
no oil, grease, pipe compound
or any foreign material
to enter
parts prior to installation
of fittings. Make sure
that all
air lines are clean
and free of foreign particles
and/or residue
before connecting
lines to gyro. DO
NOT USE THREAD
LUBE ON FITTINGS
OR IN PORTS. The use of
thread lube
can cause
contamination shortening
the life of the gyro and can
cause premature
failure.
Any evidence
of the use
of thread lube
will create a WARRANTY
VOID
CONDITION.
a. Carefully
lay teflon tape
on the fitting threads
allowing one thread
to be visible
from
the end of
the fitting. Hold in
place and wrap in the
direction of the threads
so tape will remain
tight when the
fitting is installed.
b. Apply sufficient tension while
winding to assure that tape forms into
thread grooves
(one full
wrap plus
1/2 inch
overlap is
sufficient).
c.
After wrap is complete,
maintain tension
and tear tape
by pulling in direction
of wrap.
The resulting
ragged end is the key to the
tap staying in place.
d. Press
tape
well
into threads.
e. Screw fitting
into port, being careful
not to exceed
torque requirements
as noted on
decal located
on cover of
gyro.
Revied:
10/3/80
INSTRUMENTS
2F6
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