TRANSFER G 3A6181 - Caterpillar

Cruising
The faster a truck is driven, the more fuel it will consume. Increasing cruising speed from 88 to 104 km/h (55 to 65 mph) will increase fuel consumption of a typical Class 8 truck approximately 0.4 km/L (1 mpg). Driving faster to increase stop time makes those stops very expensive. Cruising time provides the greatest opportunity to benefit from operation in the most efficient rpm range of the engine (1200 to 1600 rpm).These engines can be equipped with:* Cruise Control* Auto Retarder in Cruise* Auto Retarder in Cruise Med/Hi IncrementCruise Control
Depending on truck manufacturer, the cruise control switch may be programmed to operate in one of two modes:1. The SET position may operate as SET/ACCEL or SET/DECEL.2. The RESUME position may operate as RESUME/ACCEL or RESUME/DECEL.Refer to the markings on the switch or your Truck Owners Manual. To set the Cruise Control:1. After you accelerate to the desired speed, turn the ON/OFF switch ON.2. Press the SET/RESUME switch to the SET position.The ECM will control truck speed until the clutch or service brake pedal is depressed or the ON/OFF switch is turned OFF. You can also accelerate to desired speed and set the cruise control by pressing the SET/RESUME switch to the ACCEL position. To resume speed after an after an interruption:* Press RESUME and the truck 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 to decrease speed by one mph. The operating range of the cruise control has been programmed into the ECM.SoftCruise Control
SoftCruise provides an eight km/h (five mph) operating range around the cruise control setting. Engines are shipped from Caterpillar programmed to operate in the SoftCruise mode. SoftCruise allows the truck to accelerate slightly, under power, going down hills and get a "run" at the next hill. Improved fuel economy can be gained in this mode.When the SoftCruise control is deactivated, the SET speed is maintained. Contact your Caterpillar dealer for more information.Engine Retarder
The antilock braking system (ABS) of this vehicle may interrupt the operation of the engine retarder(s) during the ABS actuation. The engine retarder(s) are a BrakeSaver or a compression brake, and/or an exhaust brake. Refer to the literature of the vehicle manufacturer regarding the operation of the ABS.Engine retarders and exhaust type retarders generate maximum retarding power at the engine's maximum rated rpm. As the engine rpm decreases, so does the retarder performance. For maximum available retarding, operators should select a gear which will provide the desired road speed at the highest allowable engine rpm.On long downhill grades, an operator should establish a "control speed". The "control speed" is the speed at which the force that pushes the truck is equal to the retarding force that slows the truck, with little or no use of the service brake.To maximize the benefit of the retarder, the retarder should be used anytime that the operator wants to slow the truck. Retarders should