Skytrak 6042 Service Manual User Manual download pdf (Page 453)

9.83

Model 6042 Legacy Origin 7/02

Electrical System

Figure 9-43 The Alternator Charging Warning

Indicator

is Located on the

Operator’s Instrument Cluster Panel

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.) Al-

low the engine to run, which will enable the alternator to

charge the battery.

If the engine alternator charging warning indicator

illuminates, perform the following checks:

1. Check the battery cable connections at the battery

(Fig. 9-42, 1), 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 Owners/Operators Manual.)

4. Verify that the alternator mounting hardware is tight.

5. Run the engine and check the alternator for noise. A

loose drive pulley, loose mounting hardware, worn or

dirty internal alternator bearings, a defective stator

or defective diodes can cause noise. Replace a worn

or defective alternator.

6. For additional information on the charging circuit

refer to Section 9.7.14, “Charging Circuit and

Troubleshooting.”

0000 00

MA7560

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, disconnect the negative (–)

battery cable at the negative (–) battery

terminal (Fig. 9-42, 1). Failure to remove the

negative (–) battery cable will result in damage

to vehicle electronic systems.

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