Electrical System General Information
The basic heavy-duty electrical system consists of:
• Batteries and cables (1)
• A starting motor (2)
• An alternator (3)
• A magnetic switch (4)
• Keyswitch (5)
• A push button starter switch (6)
• Starting circuit wiring (7)
Refer to the vehicle manufacturer’s service repair man-
ual for specific service information about the charging
and starting circuits.
Refer to the vehicle manufacturer’s service repair man-
ual or the component manufacturer’s service bulletins for
specific service information about the starter and
alternator.
Electrical System General Information Section 6 - Electrical System
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