OM3020.1 12/99 Operation - Section 3 Operating Instructions Page 3-7 5. Use extreme caution when approaching a haul road intersection. Maintain a safe distance from oncoming vehicles. 6. Maintain a safe distance when following another vehicle. Never approach another vehicle from the rear, in the same lane, closer than 50 ft. (15 m). When driving on a down grade, this distance should not be less than 100 ft. (30 m). 7. Do not stop or park on a haul road unless unavoidable. If you must stop, move truck to a safe place, apply parking brake, and shut down engine before leaving cab. Block wheels securely and notify maintenance personnel for assistance. 8.
Before starting up or down a grade, maintain a speed that will insure safe driving and provide effective retarding under all conditions. Refer to Grade/Speed decal in operator’s cab. 9. When operating truck in darkness, or when visibility is poor, do not move truck unless all headlights, clearance lights, and tail lights are on. Do not back truck if backup horn or lights are inoperative. Always dim headlights when meeting oncoming vehicles. 10. If the “Emergency Steering” light and/or “Low Brake Pressure Warning” light ( if equipped ) illuminate during operation, steer the truck immediately to a safe stopping area, away from other traffic if possible. Refer to item 7 above. 11.
Check tires for proper inflation periodically during shift. If truck has been run on a “flat”, or under-inflated tire, it must not be parked in a building until the tire cools . STARTING ON A GRADE WITH A LOADED TRUCK Initial propulsion with a loaded truck should begin from a level surface whenever possible, but when there are circumstances where the starting on a hill or grade cannot be avoided, use the following procedure: 1. Fully depress the foot-operated retarder/service brake pedal (do NOT use retarder lever) to hold the truck on the grade. With service brakes fully applied, move the selector switch to a drive position (Forward/Reverse) and increase engine RPM with throttle pedal. 2.
As engine RPM approaches maximum, and operator senses propulsion effort working against the brakes, release the brakes and let truck movement start. Be sure to completely release the foot-operated retarder/service brake pedal. As truck speed increases above 3-5 MPH (5-8 KPH) the Propulsion System Control (PSC)will drop propulsion, if the retarder is still applied. Releasing and reapplying dynamic retarding during a hill start operation will result in loss of propulsion. PASSING 1. Do not pass another truck on a hill or blind curve! 2. Before passing, make sure the road ahead is clear. If a disabled truck is blocking your lane, slow down and pass with extreme caution. 3.
Use only the areas designated for passing. LOADING 1. Pull into the loading area with caution. Remain at a safe distance while truck ahead is being loaded. 2. Do not drive over unprotected power cables. 3. When approaching or leaving a loading area, watch out for other vehicles and for personnel working in the area. 4. When pulling in under a loader or shovel, follow “Spotter” or “Shovel Operator” signals. The truck operator may speed up loading operations by observing the location and loading cycle of the truck being loaded ahead, then follow a similiar pattern. 5. When being loaded, operator should stay in truck cab with engine running.
Place Selector Switch in “ N eutral” and apply Wheel Brake Lock. 6. When loaded, pull away from shovel as quickly as possible but with extreme caution.