OM3050 7/09 Operating Instructions - Section 30 Page 30-17 USING THE SPEED CONTROL FEATURE The speed control feature functions much like cruise control in a car. The truck must be travelling faster than 5 kph (3 mph) before speed control will engage, and the set speed must be above 8 kph (5 mph). SAFE PARKING PROCEDURES The operator must continue to use safety precau- tions when preparing for parking and stopping the engine. 1. Press the speed control switch on the dash panel to turn on the speed control feature.
In the event that the equipment is being used in con- secutive shifts, any questionable truck performance the operator may have noticed must be checked by maintenance personnel before the truck is released to another operator. 2. Accelerate to the desired truck speed. 3. Press the button on the end of the speed control lever to set the cruising speed at the current truck speed. 1. Park the truck on level ground, if possible. If it is necessary to park on a grade, the truck must be positioned at right angles to the grade. The set speed can be increased incrementally by 1 kph (1 mph) by tapping up on the lever or continuously by holding the lever up. 2. Stop the truck using the service brakes.
Place the directional control lever in the PARK posi- tion. This will apply the parking brake. Slowly release the service brakes. If the truck starts to roll, apply the service brakes and notify mainte- nance personnel immediately. The set speed can be decreased incrementally by 1 kph (1 mph) by tapping down on the lever or continuously by holding the lever down. If the accelerator pedal is used to accelerate the truck above the set speed, the truck will return to the set speed when the pedal is released. 3. If the truck is stationary with only the parking brake applied, place chocks fore/aft of the wheels to reduce the risk of the truck rolling.
Each truck must be parked at a reasonable dis- tance from other trucks/equipment. If the service brake pedal is used to decelerate the truck below the set speed, tapping up on the lever will return the truck to the set speed when the pedal is released. 4. Haul roads are not safe parking areas. In an emergency, pick the safest spot most visible to other machines in the area. If the truck becomes disabled where traffic is heavy, mark the truck with warning flags in daylight, or flares at night. 5. If desired, proceed to Normal Engine Shutdown Procedure.