C U M M I N S E N G I N E S
4-14
Warning
Do not use the engine brake on wet, icy, or snow-covered roads. Using the engine brake could result in
loss of vehicle control, possibly causing personal injury, death, or property damage.
Engine brakes are devices that use the energy of engine compression to provide vehicle retardation.
Engine brakes provide maximum retardation while the engine is at rated speed. Therefore, the engine
works in conjunction with the transmission to automatically select the best gear for maximum braking
efficiency.
The Allison transmission provides for optimum retarding downshift operation. When the engine
brake is turned ON, your foot is removed from the throttle pedal, and the service brake is depressed, the
transmission will immediately pre-select a lower gear. The transmission then starts to down-shift through
gears to reach the pre-selected gear. When the engine brake is active, down-shifting occurs at higher
speeds than when it is not active. This allows the engine brake to provide the maximum retarding power.
The engine brake switch in your coach has three positions; off (center position) low, and high. In the low
position the engine uses only three cylinders to provide braking effort. In the high position the engine uses
all six cylinders to provide braking effort.
The engine brake is activated when the following conditions are satisfied:
1.
The engine brake switch is in the low or high position
2.
The accelerator pedal is released
3.
The service brake is depressed
Cruise Control
Warning
Do not use the cruise control system when driving conditions do not permit maintaining a constant
speed, such as in heavy traffic or on roads that are winding, icy, snow covered, slippery, or roads with a
loose driving surface. Failure to follow this precaution could cause a collision or loss of vehicle control,
possibly resulting in personal injury, death, or property damage.
Summary of Contents for PowerGlide 2019
Page 6: ...T I R E C A R E 1 1 TIRE CARE Chapter 1 ...
Page 14: ...B R A K E S Y S T E M 3 1 Brake System Chapter 3 ...
Page 17: ...B R A K E S Y S T E M 3 4 Compressed Air System 36 and 40 Bus Non Tag Tank Drains ...
Page 18: ...B R A K E S Y S T E M 3 5 43 Bus Tag Tank Drains ...
Page 21: ...B R A K E S Y S T E M 3 8 ...
Page 37: ...C U M M I N S E N G I N E S 4 17 ...
Page 38: ...S C H E D U L E D M A I N T E N A N C E 5 1 Scheduled Maintenance Chapter 5 ...
Page 45: ...S C H E D U L E D M A I N T E N A N C E 5 8 Lubrication Points ...
Page 46: ...S C H E D U L E D M A I N T E N A N C E 5 9 Lubrication Points ...
Page 47: ...S C H E D U L E D M A I N T E N A N C E 5 10 Lubrication Points ...
Page 48: ...S C H E D U L E D M A I N T E N A N C E 5 11 Lubrication Points ...
Page 53: ...S C H E D U L E D M A I N T E N A N C E 5 16 ...
Page 54: ...P R E T R I P I N S P E C T I O N 6 1 Pre Trip Inspection Chapter 6 ...
Page 57: ...I N S T R U M E N T S C O N T R O L S 7 1 Instruments Controls Chapter 7 ...
Page 84: ...I N S T R U M E N T S C O N T R O L S 7 28 MENU MAP SETTINGS MENUS Settings Menus ...
Page 92: ...I N S T R U M E N T S C O N T R O L S 7 36 ...
Page 93: ...A I R S U P P L Y 8 1 Air Supply Chapter 8 ...
Page 95: ...A I R S U P P L Y 8 3 ...
Page 96: ...T A G A X L E 9 1 Tag Axle Chapter 9 ...
Page 98: ...W A R R A N T Y 10 1 Warranty Chapter 10 ...
Page 100: ...W A R R A N T Y 10 3 ...