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EFFECTIVITY:
CIRRUS AIRPLANE MAINTENANCE MANUAL MODELS SR22 AND SR22T
15 Jun 2010
1
ALT 1 and ALT 2 caution lights illuminate.
2
Flap position light illuminates.
3
Engine instruments are operational and manifold pressure gage indicates approxi-
mately the altimeter setting.
4
Ammeter select switch shows slight discharge in BAT position.
(d) Start Engine and set engine speed at 1000 RPM.
(e) Verify landing light, pitot heat, avionics, strobe lights, and navigation lights are on.
(f) Switch ALT 1 ON and ALT 2 ON.
(g) Increase RPM to 1700.
(h) Check that LOW VOLT light is off and ammeter shows no current discharge in BAT posi-
tion.
(i) Increase RPM to 2200.
(j) Check that LOW VOLT light is off and ammeter shows no current discharge in BAT posi-
tion.
(k) Switch ALT 1 ON and ALT 2 OFF. Verify and record operating values.
(l) Switch ALT 1 OFF and ALT 2 ON. Verify and record operating values.
(m) Switch ALT 1 ON and ALT 2 ON. Verify and record operating values.
Voltage Indication Ammeter Indication Annunciator Illumination
Clock/Volts Voltmeter ALT 1 BAT ALT 2 LOW
VOLTS
ALT 1
Steady
ALT 2
Stead
y
27V - 28.3V 27V - 28V Pos < 40A 0 - Pos 0A OFF OFF ON
Voltage Indication Ammeter Indication Annunciator Illumination
Clock/Volts Voltmeter ALT 1 BAT ALT 2 LOW
VOLTS
ALT 1
Steady
ALT 2
Stead
y
20V - 24V 28V - 29V 0A 0A - Neg 2A - 20A OFF ON OFF
Voltage Indication Ammeter Indication Annunciator Illumination
Clock/Volts Voltme-
ter
ALT 1 BAT ALT 2 LOW
VOLTS
ALT 1
Steady
ALT 2
Stead
y
27V -
28.3V
28V -
29V
Pos <
40A
0A -
Pos
2A -
20A
OFF OFF OFF
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