Master Switch; Other Electrical Switches And Controls - Cessna 182 Operating Instructions Manual

Master Switch

73. The split-rocker Master Switch is located on the lower left sub-panel. The Master switch
is selected ON in the UP position. The right half, labelled MASTER, controls all electrical power
to the aircraft and connects the battery to the DC bus. The left half, labelled ALT, controls the
alternator. In normal operation, both sides of the switch are used simultaneously; however, the
MASTER side may be turned on separately to power electrical equipment on the ground. The
ALT side of the switch, when selected OFF, removes the alternator from the system.
Continued operation with the alternator OFF will eventually reduce
battery power, resulting in loss of power to the alternator field,
precluding a restart.
Do not turn off the alternator in flight, except in an emergency.

Other Electrical Switches and Controls

74. All electrical switches and controls are located on the lower left side of the instrument
sub-panel. With the exception of the clock, all electrical circuits are protected by either push-to-
reset type circuit breakers or breaker-switches located on the pilots instrument sub-panel.
CAUTION
CAUTION
Figure 1-48 Electrical Panel
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