Electrical Troubleshooting - MacDon M2170 Operator's Manual

Windrower
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7.2 Electrical Troubleshooting

Refer to the table provided below if you encounter problems with the electrical system while operating the windrower.
Problem
Symptom: Low voltage and/or the battery will not charge.
Defective battery
Loose or corroded connections
Defective alternator belt
Alternator or voltage regulator not
connected properly
Dirty or defective alternator, defective
voltage regulator, or high resistance in
circuit
Symptom: Lights dim.
High resistance in circuit or poor
ground on lights
Symptom: Lights do not light.
Burned out or defective light bulb
Burned out or defective light bulb
Burned out or defective light bulb
Burned out or defective light bulb
Burned out or defective light bulb
Burned out or defective light bulb
Broken wiring
Poor ground on lights
Open or defective circuit breaker
Defective relay
Symptom: Wrong turn signal/indicator lights activated.
Reversed wiring
Symptom: No current to tab.
Broken or disconnected wire
Circuit breaker tripped
262170
TROUBLESHOOTING
Solution
Have battery tested.
Clean and tighten battery connections.
Replace worn belt.
Connect properly.
Contact Dealer.
Check the wiring circuit for a break in
a wire or a poor ground.
Replace light bulb.
Replace light bulb.
Replace light bulb.
Replace light bulb.
Replace light bulb.
Replace light bulb.
Check wiring for broken wire or
shorts.
Clean and tighten ground wires.
Check circuit breaker.
Replace relay.
Contact Dealer.
Contact Dealer.
Breaker automatically resets.
525
Section
5.14.1 Batteries, page 454
Maintaining Battery, page 454
Replacing Engine Fan Drive Belt, page
475
5.14.1 Batteries, page 454
Replacing Headlight Bulb – Engine-
Forward, page 484
Replacing Bulbs in Standard Work
Lights or Cab-Forward Headlights,
page 483
Replacing LED Lights – Deluxe Cab
Only, page 486
Replacing Bulbs in Red and Amber
Lights, page 487
Replacing Beacon Lights, page 489
Replacing Cab Dome Bulb, page 489
5.15.7 Accessing Circuit Breakers and
Fuses, page 493
Replacing Circuit Breakers and Relays,
page 494
Revision A

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