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102 OPERATION
How the Engine Brake is Activated
When the engine brake is "enabled" (switch in either LOW or HIGH position), your engine
V-MAC® electronic control system commands engine brake power (engine brake "active")
only when the following conditions are true:
•
The foot-operated engine accelerator pedal is not depressed.
•
The clutch pedal is not depressed (manual shift transmissions only).
•
The engine speed is at least 900 rpm.
If the engine brake is active, the engine brake will automatically be deactivated by
depressing either the accelerator or the clutch, or if the engine speed drops below 900 rpm.
As soon as all of the engine brake "active" conditions are again true (taking your foot off the
accelerator, for example), the engine brake will again be activated. In order to disable the
engine brake, simply return the dash-mounted control switch to the OFF position.
DANGER
The engine brake should never be considered a substitute for the vehicle service brakes.
The service brakes should always be maintained in good working order, and should
always be viewed as the primary vehicle slowing system. Service brakes are always
used to bring the vehicle to a complete stop.
Summary of Contents for CHM 2010
Page 2: ......
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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: ......