MOONEY
M20V ACCLAIM ULTRA
SECTION VII
AIRPLANE AND SYSTEM DESCRIPTION
7 - 31
AIRPLANE FLIGHT MANUAL
ORIGINAL ISSUE - 03-16-2017
Push- pull circuit breakers automatically break the electrical current flow if the system or unit re-
ceives current overload to prevent damage to electrical wiring. Figure 7- 9 illustrates a typical
main circuit breaker panel with its push- pull circuit breakers.
The alternator’s push- pull circuit breaker, on the main breaker panel, furnish an emergency
overload break between the alternators and the power bus. Since the alternator is incapable of
output in excess of circuit breaker capacity, a tripped breaker normally indicates a fault within the
alternator.
NEVER fly the aircraft with a severely discharged battery, even if you do not plan to use
it. Selection of a severely discharged battery in flight can cause a current ”in-rush” from
the alternator, and may damage on-board systems.
-WARNING-
The alternator field has a push- pull circuit breaker to furnish an emergency break in the alterna-
tor field excitation circuit in the event of alternator or voltage regulator malfunction. If regulator
output voltage exceeds limits, the warning annunciation illuminates steadily and the alternator
field circuit breaker trips.
Resetting the alternator field circuit breaker should reset the alternator. If the circuit breaker will
not reset, continue flight with minimum electrical load. The flight will be continued using only bat-
tery power, caution is advised to not drain both batteries if electrical power will be required before
you are able to land. Land when practical to correct the malfunction.
-NOTE-
The circuit breakers installed in the panel may vary depending on installed equip-
ment.
ACCESSORIES
Standard electrical accessories include the starter, the electric fuel pump, and the stall warning
horn. Electrical accessories include the navigation lights, anti- collision strobe lights, instrument
panel lighting, and cabin courtesy lights. Make sure the lighting and Emergency Bus switch, as
well as the SAM circuit breaker are de-energized when leaving the aircraft. Leaving these sys-
tems energized for an extended period of time could cause depletion of the battery.
1 dome and 4 reading lights, mounted in the overhead panel and glareshield lights, mounted
below edge of glareshield provide instrument and cockpit lighting for night flying. A wing tip posi-
tion light system consists of 2 lights on each wingtip and is operated by a rocker type switch
mounted in the overhead switch panel. Landing and taxi lights are mounted on the wing leading
edges on both wings.
Wing tip and tail mounted Strobe lights are controlled by a rocker type switch mounted in the
overhead switch panel.
The M20V electrical system is divided into two power buses. A simplified schematic of the elec-
trical system is shown in the diagram which follows.
ANNUNCIATIONS AND ALERTS
The landing gear, speed brakes, alternate air, prop de- ice, pitot heat, alternator fail, start power,
emergency buss, door open, Low/High boost pump annunciations are grouped in the
GDU10(XX) PFD panel.
LIGHTING SYSTEM
INSTRUMENT & PLACARD LIGHTS
All placards are floodlighted by lights from the glareshield. There are two momentary switches
on the right hand radio panel, below the MFD. The right switch regulates intensity of the placard
lighting. The left switch provides avionics and instrument lighting. Selecting the switches up or
down increases or decreases light intensity.
