MacDon M1170 - Electrical Troubleshooting; O-Ring Face Seal (ORFS) Hydraulic Fittings

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7.2 Electrical Troubleshooting
Problem Solution
Section
Symptom: Low voltage and/or the battery will not charge.
Defective battery
Have battery tested.
5.14.1 Batteries, page 342
Loose or corroded connections Clean and tighten battery connections.
Maintaining a Battery, page 342
Defective alternator belt Replace worn belt.
Replacing Engine Fan Drive Belt, page
360
Alternator or voltage regulator not
connected properly
Connect properly.
5.14.1 Batteries, page 342
Dirty or defective alternator, defective
voltage regulator, or high resistance in
circuit
Contact Dealer. Contact Dealer
Symptom: Lights dim.
High resistance in circuit or poor
ground on lights
Check the wiring circuit for a break in
a wire or a poor ground.
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Symptom: Lights do not light.
Burned out or defective light bulb Replace light bulb.
Replacing Headlight Bulb (Engine-
Forward), page 370
Burned out or defective light bulb Replace light bulb.
Replacing Bulbs in Standard Work
Lights, page 369
Burned out or defective light bulb Replace light bulb.
Replacing LED Lights (Deluxe Cab
Only), page 372
Burned out or defective light bulb Replace light bulb.
Replacing Bulbs in Red and Amber
Lights, page 373
Burned out or defective light bulb Replace light bulb. Replacing Red Tail Lights, page 374
Burned out or defective light bulb Replace light bulb. Replacing Beacon Lights, page 374
Burned out or defective light bulb
Replace light bulb.
Replacing the Cabin Dome Bulb, page
375
Broken wiring Check wiring for broken wire or shorts.
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Poor ground on lights Clean and tighten ground wires.
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Open or defective circuit breaker Check circuit breaker.
5.15.7 Accessing Circuit Breakers and
Fuses, page 378
Defective relay Replace relay.
Replacing Circuit Breakers and Relays,
page 380
Symptom: Wrong turn signal/indicator lights activated.
Reversed wiring Contact Dealer. Contact Dealer
Symptom: No current to tab.
Broken or disconnected wire Contact Dealer. Contact Dealer
Circuit breaker tripped Breaker automatically resets.
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TROUBLESHOOTING