—CAUTION—
DO NOT use thread lube on fittings or in ports. The use of thread lube
can cause contamination which shortens the life expectancy of the gyro
and can cause premature failures. Any evidence of thread lube will
create a WARRANTY VOID CONDITION. Make sure that all air lines are
clean and free of foreign particals and/or residue before connecting
lines to gyro.
c. The use of teflon tape on fitting threads is recommended and should be installed in the following manner:
1. Carefully lay teflon tape on the 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 fitting is installed.
2. Apply sufficient tension while winding, to assure that tape forms into thread grooves. One full wrap
plus 1/2" overlap is sufficient.
3. After wrap is complete, maintain tension and tear tape by pulling in direction of wrap. The ragged end
is the key to the tape staying in place. (If sheared or cut, tape may loosen.)
4. Press tape well into threads.
5. Screw fitting into port being careful not to exceed torque requirements as noted on decal located on
cover of gyro.
d. Installation of the instruments will be in the reverse order 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.
10-86. REMOVAL AND REPLACEMENT OF CLUSTER MOUNTED INSTRUMENTS
10-87. GENERAL. A cluster, located on the instrument panel, contains individual instruments. Removal of
these instruments can be accomplished by the following procedure.
a. Remove the face panel by removing the screws from around the perimeter of the panel.
b. With the face panel removed, the clear plastic cover on the cluster assembly will be exposed. Remove the
cover and cluster by removing the six mounting screws.
c. Remove the connection to the individual instrument to be removed and remove the instrument from the
cluster assembly.
d. Replace instrument in the reverse order of removal. Check all mountings and connections for security.
THIS SPACE INTENTIONALLY LEFT BLANK
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY. 28, 1989
I N S T R U M E N T
2C12