Tecnam P2002 JF - Page 1281

2
nd
Edition - Rev 0
SUPPLEMENT SG-1
CHAPTER 34 – MAINTENANCE PRACTICES
Page 103
1. STANDBY ATTITUDE INDICATOR REPLACEMENT AND TEST-
ING
This procedure applies to standby attitude indicator.
Procedure
Step
no.
Standby attitude indicator
replacement and testing
Task description
Additional info &
References
1.
Make sure Master Switch is set to OFF
2.
Remove instrument electrical wires
3.
Unscrew the attaching screws which fix the in-
strument to the aluminum panel
hold firmly the instrument by
hand during removal
4.
Clear of the instrument of the instrument panel
5.
Place into position the new/overhauled unit in
correspondence of the instrument panel cut-out
6.
Install the attaching screws which fix the instru-
ment to the aluminum panel
Hold firmly the instrument by
hand during installation. Do
not over tighten screws to
avoid instrument case dam-
age
7.
Connect instrument electrical wires at the rear of
the instrument
Be sure that the electrical ca-
bles don’t have radius of cur-
vature too small, the instru-
ments may not operate cor-
rectly
8.
TESTING
CAUTION: the indicator may
be damaged if the “pull to
cage” knob is released with a
“snap”. Release the knob
avoiding a “snap” release.
9.
A. Apply power to the indicator. Note that the
Gyro Warning flag (red) will pull out-of view. Al-
so allow three minutes for presentation stabiliza-
tion.
NOTE: Indicator may be
momentarily caged by pulling
“PULL TO CAGE” knob to
the fully extended position,
holding knob until the display