OM3005.1 Operation - Section 3 Operating Instructions Page 3-7 If brake oil temperature exceeds 250 o F (121 o C), the Brake Oil Temperature Warning light will turn on. As quickly as safety will permit, bring the truck to a complete stop away from traffic, move transmission range selector to "Neutral", apply the parking brake, and run engine at high idle. Con- tinue to run engine at high idle until Brake Oil Temperature Warning light turns off and brake oil temperature cools to below 250 o F (121 o C). If tem- perature does not return to this range within a few minutes, report the condition immediately to maintenance personnel and wait for further in- structions before moving truck.
DUMPING 1. Pull into dump area with extreme caution. Make sure area is clear of persons and obstructions, including overhead utility lines. 2. Carefully maneuver truck into dump position. Obey signals directed by the spotter, if present. Avoid unstable areas. Stay a safe distance from edge of dump area. Position truck on a solid, level surface before dumping . 9. When operating truck in darkness or when visibility is poor, do not move truck unless headlights are on. Do not back truck if back-up horn or lights are inoperative. As body raises, the truck Center of Gravity (CG) will move. Truck must be on level surface to prevent tipping / rolling! 10.
When backing the truck, give back-up signal (three blasts on air horn); when starting forward, two blasts on air horn. These signals must be given each time the truck is moved forward or back- ward. 3. When in dump position, apply the Brake Lock and move Transmission Range Selector to the " N eu- tral" position. 11. Do not stop or park on a haul road unless unavoid- able. If you must stop, move truck to a safe place, apply parking brake, shut down engine, block wheels securely and notify maintenance person- nel for assistance. To Raise dump body : 12.
If the "Emergency Steering" light and/or "Low Brake Pressure Warning" light ( if equipped ) come on during operation, steer the truck immediately to a safe stopping area, away from other traffic if possible. Refer to item 11 above. The dumping of very large rocks (10% of payload, or greater) or sticky material (loads that do not flow freely from the body) may allow the material to move too fast and cause the body to move RAP- IDLY and SUDDENLY. This sudden movement may jolt the truck violently and cause possible injury to the operator, and/or damage to the hoist cylinders, frame, and/or body hinge pins.
If it is necessary to dump this kind of material, refer to the CAUTION in the following procedure: 13. Report haul road conditions immediately. Muddy or icy roads, pot holes or other obstructions can present hazards. 14. Cab doors should remain closed at all times while truck is in motion or unattended. 4. Pull the lever (depress the hoist switch release button, if equipped) to the rear to actuate hoist circuit. Releasing the lever anywhere during "hoist up" will place the body in "hold" at that position. 15. Check for flat tires periodically during shift. If truck has been run on a "flat", it must not be parked in a building until the tire cools . 5.
Raise engine RPM to accelerate hoist speed. Refer to the CAUTION below. PASSING 1. Do not pass another truck on a hill or blind curve! If dumping very large rocks or sticky material as decribed in WARNING above, slowly accelerate engine RPM to raise body. When the material starts to move, release hoist lever to "HOLD" position. If material does not continue moving and clear body, repeat this procedure until material has cleared body. 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.