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MAINTENANCE AND LUBRICATION 217
Electrical Accessory Connection Points
CAUTION
The electrical systems on all MACK
chassis include a circuit breaker located
in the ground circuit. Any additional
electrical components that may be added
MUST not be connected directly to
the battery or negative connection of
the starter. Doing so may defeat the
protection provided by this circuit breaker.
Components may be ground connected to
other locations, such as frame or engine
grounding points.
This MACK chassis is ready for convenient installation of electrical accessories. Use only
the designated CB jacks on the dashboard, or battery post (12 volts), ignition, ground post,
buffered tachometer (RPM) output, and buffered speedometer (MPH) output connections
available on the electrical equipment panel. Each connection point is described below.
Battery Post (BATT)
This is a 12-volt, unswitched battery power connection. It can be used to power external
devices that require power at all times, even when the key is turned off. This source is
protected by a 20-amp circuit breaker.
Ignition Post (IGN)
This is a 12-volt, switched battery power connection. It can be used to power external
devices that require power only when the key is turned on. This source is protected by
a 15-amp circuit breaker.
Ground Post (GND)
This is a ground connection. It can be used as a power return connection for external devices.
Summary of Contents for CHM 2010
Page 2: ......
Page 8: ......
Page 25: ...SAFETY INFORMATION 17 Advisory Label Locations On Vehicle Labels Found on Chassis C0032631...
Page 26: ...18 SAFETY INFORMATION W8061742...
Page 27: ...SAFETY INFORMATION 19 C0032633...
Page 28: ...20 SAFETY INFORMATION W8061397...
Page 29: ...SAFETY INFORMATION 21 Labels Found on Driver Side Sun Visor W8061402...
Page 35: ...SAFETY INFORMATION 27 C0032643...
Page 37: ...SAFETY INFORMATION 29 C0032645...
Page 47: ...INSTRUMENTS AND CONTROLS 39 INSTRUMENT PANEL GAUGE LAYOUT C0032654...
Page 76: ...68 INSTRUMENTS AND CONTROLS C0032684...
Page 107: ...OPERATION 99 W4059732 Control Switch W4059733 Mode Switch...
Page 160: ...152 OPERATION C0032897...
Page 166: ...158 OPERATION C0032898...
Page 192: ...184 Mack Emissions Solution W8056653...
Page 207: ...MAINTENANCE AND LUBRICATION 199 C0032899 C0032900 1 Towhook Access...
Page 218: ...210 MAINTENANCE AND LUBRICATION ELECTRICAL Circuit Breaker and Relay Panels C0032908...
Page 232: ......