CYLINDER HEAD GP 3452206 - Caterpillar

Cruising
Vehicles that are driven faster consume more fuel. Increasing the cruising speed from 88 km/h (55 mph) to 104 km/h (65 mph) will increase the fuel consumption of a typical Class 8 vehicle by approximately 0.4 km/L (1 mpg). When a vehicle is driven fast in order to allow more time for stops, the stops become very expensive. Cruising allows the engine to operate in the most efficient rpm range (1200 to 1600 rpm).Cruise Control
The functionality of the cruise control can vary depending on the vehicle manufacturer. The Cruise Control switch may be programmed to operate in one of two modes:
The SET position may operate as the SET/ACCEL SWITCH position or the SET/DECEL position.
The RESUME position may operate as the RESUME/DECEL position or the RESUME/ACCEL position.Refer to the markings on the Cruise Control switch or refer to your "Truck Service Manual".Perform the following steps in order to set the Cruise Control:
After the vehicle accelerates to the desired speed, turn the "ON/OFF" switch to the ON position.
Press the "SET/RESUME" switch to the SET position.The ECM will control the vehicle speed until the clutch pedal or the service brake is depressed or the "ON/OFF" switch is turned to the OFF position.Note: The vehicle can also be accelerated to the desired speed and the cruise control speed can be set by pressing the "SET/RESUME" switch to the ACCEL position.Perform the following step in order to reset the Cruise Control:
Press "RESUME" and the vehicle will return to the set speed.Momentarily pressing or bumping the "SET/RESUME" switch to the ACCEL position will increase vehicle speed by one mph. Press the switch to the DECEL position in order to decrease the speed by one mph. The operating range of the cruise control has been programmed into the ECM.Soft Cruise Control
The Cruise Control can be programmed to operate in one of two modes, "Soft Cruise = YES" or "Soft Cruise = NO".Soft Cruise Control provides an operating range of 8 km/h (5 mph) around the setting for the cruise control. Engines that are shipped from Caterpillar are programmed to operate in the "Soft Cruise = YES" mode. Soft Cruise Control allows the vehicle to accelerate slightly while the engine is under power. The vehicle can proceed down a hill while momentum is gained for the next hill. Improved fuel economy can be gained in this mode.When "Soft Cruise = NO" is programmed, the "SET" speed is maintained. Consult your Caterpillar dealer for more information. Eaton Top 2 Transmission
Note: The following information is applicable to engines with the EatonTop 2 transmission.The ECM controls the shifting of the two highest gears of the transmission. A downshift of one gear from the top gear will occur automatically. The downshift will occur when the load that is on the engine increases. An example of an increasing load would be climbing a hill.The Throttle Activated Downshift feature is available in order to provide the operator with additional control of the gears for the Top 2 transmission. The Throttle Activated Downshift