SkyTrak 8042 Service Manual - Manual (Page 790)

9.199 Model 8042, 10042, 10054 Legacy Rev. 10/03
Electrical System
4. Insert the fork terminal of the blue/orange wire (16)
into the protective cover (17) on the starter solenoid
terminal. Use a small phillips screwdriver to tighten
the screw (18) securely.
5. Snap the tethered cap back in place over the screw
in the protective cover.
Applies To All Vehicles
6. If the vehicle has one battery, connect the
negative (-) battery cable to the negative (-) battery
terminal (19).
If the vehicle has dual batteries, connect both
negative battery cables to both negative (-) battery
terminals (20).
9.10 CHARGING CIRCUIT
The purpose of the charging circuit is to maintain battery
voltage between 13.8 and 14.2 volts. The key switch
must be in the RUN position with the engine running in
order for the charging system to operate.
The charging circuit consists of the battery and a
belt-driven alternator with an internal voltage regulator.
These components work together to provide electrical
power for the vehicle, including the starting system,
operator’s instrument cluster, horn, solenoids, back-up
alarm and all accessories.
Current flows from the positive post of the battery to the
battery terminal on the starter motor solenoid.
When the ignition key switch is in the RUN position,
current flows from the instrument cluster to the alternator
D+ terminal, and is used to excite the field windings; The
alternator begins emitting a charge. Current flows from
the alternator B+ terminal to the starter motor B terminal,
then through the positive (+) battery cable to the battery.
The circuit in the instrument panel connects to the battery
positive terminal through the fuse panel and detects field
voltages in excess of 16 volts or system voltages that are
less than 2-4 volts below battery voltage. Either of these
conditions will cause the warning light on the operator’s
instrument cluster to illuminate.
The alternator charging warning indicator (21), a battery-
shaped icon on the instrument cluster panel, illuminates
for three seconds when the engine is started and will
remain illuminated if the engine is not running. The
alternator charging warning indicator illuminates when
the battery is at a low state of charge, and when the
alternator is no longer able to charge the battery.
MU6190
16
18
17
MH4890
19
20
0000 00
P
MA7560
21