SECTION 7
PIPER AIRCRAFT CORPORATION
DESCRIPTION & OPERATION
PA-28-236, DAKOTA
REPORT: VB-910
ISSUED: JUNE 1, 1978
7-14
REVISED: NOVEMBER 22, 1982
NOTE
On airplanes with interlocked BAT and ALT
switches, the ALT switch is mechanically
interlocked with the BAT switch. When ALT
switch is turned ON, the BAT switch will also
be turned ON. On airplanes with separate BAT
and ALT switch operation, the switches may be
positioned independently as desired.
Circuit provisions are made to handle the addition of communications
and navigational equipment.
Unlike previous generator systems, the ammeter does not indicate
battery discharge; rather it displays in amperes the load placed on the
alternator. With all electrical equipment off (except the master switch), the
ammeter will be indicating the amount of charging current demanded by the
battery. As each item of electrical equipment is turned on, the current will
increase to a total appearing on the ammeter. This total includes the battery.
The maximum continuous load for night flight, with radios on, is about 30
amperes. This 30 ampere value, plus approximately two amperes for a fully
charged battery, will appear continuously under these flight conditions. The
amount of current shown on the ammeter will tell immediately whether the
alternator system is operating normally, as the amount of current shown
should equal the total amount of amperes being drawn by the equipment
which is operating.
If no output is indicated on the ammeter, during flight, reduce the
electrical load by turning off all unnecessary electrical equipment. Check
the 5 ampere field breaker, reset if open. If the breaker is not open, turn off
the “ALT” switch for one second to reset the overvoltage relay. If ammeter
continues to indicate no output, maintain minimum electrical load and
terminate flight as soon as practical.
CAUTION
Do not use cigar lighter receptacles as power
sources for any devices other than the cigar
lighters supplied with the airplane. Any other
device plugged into these receptacles may be
damaged.
Summary of Contents for PA-28-236 DAKOTA
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