North&Wing&S,LSA&Maintenance&Manual&
Model:&Sport&X2&582&
Issue 3.2
Printed: July 16 2017
Page 87
4.5# Electrical#System#
The wiring schematic for the electrical system is shown on the following page for the Apache
582 model. The Rotax 582 engine outputs a maximum of 170 watts of electrical power from
the lighting coils inside the engine. These coils produce a crude AC power source that must
be rectified and regulated by the Key West Rectifier/Regulator mounted on the side of the Hot
Box. All power is fused and distributed through the hot box terminals shown in the middle of
the schematic and hard wired leads to the engine. Note particularly that the starter solenoid is
located inside the Hot Box. The fused supply terminals are the top three left hand terminals
where the fuse amperage is indicated.
Although the lighting coils are capable of outputting 170 watts of power, it is advisable to
restrict the continuous power consumption to about 150 watts. This amounts to about 12.5
amps of electrical load. Otherwise, the lighting coils may overheat and be damaged. The cost
of the coils alone is quite expensive plus the time and expense to tear down the electrical end
of the engine to replace the coil assembly. The lighting coils cannot be individually replaced.
Instead, the entire set of lighting and ignition coils must be replaced as a single unit.
Operation at the full 170 watts for short periods of time is acceptable and should not damage
the coils.
For miscellaneous accessories, a power socket is provided on the instrument panel that will
accommodate up to approximately an 8 amp load allowing about 2 amps for the fuel gauge.
Accessories can be hardwired into the Hot Box provided they do not exceed the fuse limits.
All hard wired accessories must be connected to one of the three fused terminals. NEVER
hardwire any electrical equipment directly to the incoming line from the engine lighting coils.
This is AC and is a “dirty” unregulated power that will damage electrical equipment. Also,
NEVER hard wire any electrical devise directly to the output of the voltage regulator. An
excessive un-fused load can damage the Regulator requiring an expensive repair that could
have been avoided.
The Electronic Instrument System (EIS) has a pre-wired cable for the EGT and CHT
temperature probes. The wiring schematic excerpted from the EIS documentation is shown on
the second schematic following this page.
Repairs to the electrical system are limited to replacing broken wires, voltage regulator, starter
solenoid, ignition switch, magneto switches, battery, and lights.