SkyTrak 8042 Service Manual - Manual (Page 791)

Electrical System
9.200 Model 8042, 10042, 10054 Legacy Rev. 10/03
The negative (-) post of the battery is connected to the
starter ground, a stud located on the starter housing.
Other ground leads routed directly from the main chassis
ground are provided to the alternator and fuel shut-off
switch, and are spliced within the wiring harness to other
electrical system grounds.
The alternator includes an internal voltage regulator that
limits alternator voltage to a preset value and helps
prevent circuit overloads, power surges, etc. during peak-
voltage output.
Beyond inspecting the fan belt every 1,000 hours of
engine operation, there is no periodic maintenance
required for the charging circuit. When inspecting the fan
belt, also check the electrical wiring and connectors.
Under normal conditions the alternator will have no
problem keeping the battery charged. The only condition
in which the battery may cause a problem is when it has
been completely discharged for an extended period of
time. In this condition, the alternator may be unable to
recharge the battery, and a battery charger will be
required for recharging.
Before using a battery charger, an attempt can be made
to recharge the battery by jump-starting the vehicle.
(Refer to the appropriate Owners/Operators Manual.)
Allow the engine to run, which will enable the alternator to
charge the battery.
Applies To Serial Numbers: 8042, 18991 - 19987,
10042 19031 - 19987, 10054, 19080 - 19987 And
8042/10042/10054, 0160002332 & After
Applies To All Vehicles
If the engine alternator charging warning indicator
illuminates, perform the following checks:
1. Check the all battery cable connections at the
battery (1, 2, 3 and 4), and verify that they are clean
and tight.
2. Check the external alternator wiring and
connections, and verify that they are in good
condition.
3. Check the fan belt condition and tension. (Refer to
the appropriate Legacy Owners/Operators Manual.)
WARNING:
DO NOT charge a frozen
battery. A frozen battery may explode and
cause serious personal injury. Allow the
battery to thaw before “jump-starting” the
vehicle or connecting a battery charger.
CAUTION:
Before performing ANY
welding on vehicle:
If the vehicle has one battery, disconnect the
negative (-) battery cable at the negative (-)
battery terminal (1).
If the vehicle has dual batteries, disconnect
both negative battery cables from both negative
(-) battery terminals (4).
Failure to disconnect the negative (-) battery
cable will result in damage to vehicle electronic
systems.
CAUTION:
When doing welding
anywhere on the vehicle disconnect the wire
harness (5 and 6) from the Engine Control
Module (ECM) (7) on the engine.
MH4890
1
2
4
3
MU5510
5
6
7