Digital Clock - Piper Navajo PA-31 Service Manual

d.
Install access panels.
e.
Perform operational check of gyro-pneumatic system. (Refer to Paragraphs 10-17 through 10-21 )
C25E
DECIMAL POINT ANNUNCIATOR
QUARTZ CHRONOMETER
TIMER
CLOCK
COLON SET DT/AV
MODE
RST
0 ST/SP
FRONT VIEW
12/24 HOUR SWITCH
Figure 10-9. Digital Clock
10-33. CLOCK. The standard equipment clock is an eight day timepiece with the winding stem located in the
lower left hand side of the dial. A battery (AAA type) powered quartz digital clock may be installed as optional
equipment beginning with Aircraft S/N 31-8212001.
10-34. REMOVAL AND INSTALLATION OF CLOCK. (Refer to paragraphs on Removal of Instruments
and Installation of Instruments.)
10-35. REPLACEMENT OF BATTERY (Digital Clock). The "AAA" type alkaline battery has a useful life
of approximately 24 months. To replace the battery, it will be necessary to remove the clock from the
instrument panel.
a.
Remove the four screws which secure the clock to the panel.
b.
Reach up behind the instrument panel, remove the clock from its position and move it to a more
accessible location.
c.
Remove the screw from the back of the clock and gently separate the case from the face.
d.
Replace the battery and reinstall the case.
e.
Install the clock in the instrument panel and reset according to the directions given in DIGITAL
CLOCK, TIMER, CHRONOMETER OPERATION.
Added: 9/24/81
,
INSTRUMENTS
PIPER NAVAJO SERVICE MANUAL
3D22