Operation - Section 3 OM3012.1 Page 3-6 Operating Instructions 4. Observe all regulations pertaining to the job site’s traffic pattern. Be alert to any unusual traffic pat- tern. Obey the spotter’s signals. HAULING 1. Always stay alert! If unfamiliar with the road, drive with extreme caution. 5. Match the truck speed to haul road conditions and slow the truck in any congested area. Keep a firm grip on steering wheel at all times. 2. Govern truck speed by the road conditions, weather and visibility. 6. Do not allow engine to run at "Idle" for extended periods of time. 3. Operate truck so it is under control at all times. 4. Use extreme caution when approaching a haul road intersection.
Maintain a safe distance from oncoming vehicles. 7. Check parking brake periodically during working shift. Use parking brake for parking only. Do not attempt to apply parking brake while truck is moving! 5. Obey all road signs. 8. Check brake lock performance periodically for safe loading and dump operation. 6. Always dim headlights when meeting oncoming vehicles. 9. Proceed slowly on rough terrain to avoid deep ruts or large obstacles. Avoid traveling close to soft edges and the edge of fill area. 7. 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 operating on a down grade, this distance should be no closer than 100 ft. (30 m). 10. Truck operation requires concentrated effort by the driver. Avoid distractions of any kind while oper- ating the truck. 8. When approaching a descending grade, the op- erator should slow the truck and select the proper transmission gear range to maintain an engine speed of 1650 -- 2350 RPM (green area on ta- chometer) and the brake oil temperature below 250 o F (121 o C) during retarder operation. Refer to the Grade/Speed decal in the cab above the windshield. 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. Retarder Operation 3. When approaching or leaving a loading area, watch out for other vehicles and for personnel working in the area. When descending a grade, the operator should apply the retarder pedal and observe both the Tachometer and the Brake Oil Temperature Gauge . The engine RPM must be maintained at 1650 -- 2350 RPM (green area on tachome- ter) and the Brake Oil Temperature must be maintained below 250 o F (121 o C). 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. If the operator observes that either the maximum engine speed of 2350 RPM or the Brake Oil Tem- perature of 250 o F (121 o C) are about to be ex- ceeded, the operator should immediately move the transmission range selector to the next lower range and apply the service brakes until the truck is slowed to a speed which will permit the trans- mission to downshift to the gear range selected.
Continue this procedure to downshift to the re- quired gear range to maintain engine speed at 1650 -- 2350 RPM and brake oil temperature below 250 o F (121 o C). The service brakes should be used only long enough to slow the truck to allow the transmission to downshift. When the proper gear range is attained, continue using the retarder to maintain a safe, productive speed. 5. Operator should remain in truck cab with engine running while truck is being loaded. Place Trans- mission Range Selector in " N eutral" and apply Brake Lock. If operator must leave truck cab dur- ing loading, engine must be shut down and parking brake applied.
DO NOT use brake lock or emergency brake (if equipped) for parking. Remain far enough away from truck to avoid being struck by flying material. 6. When truck is loaded, pull away from shovel as quickly as possible, but with extreme caution.