OM3054 03/13 Operating Instructions - Section 30 Page 30-13 If the maximum engine speed of 2100 rpm or the brake oil temperature of 120°C (248°F) is about to be exceeded, move the transmission shift lever to the next lower range. Adjust the retarder control to reduce speed and allow the transmission to down- shift into the selected gear range. DUMPING 1. Approach the dump area with extreme caution. Ensure the area is clear of personnel and obstructions such as overhead power lines. Obey spotter signals, if present. Avoid unstable areas. Travel at a safe distance from the edge of a dump area. Position the truck on a solid, level surface before dumping.
Continue this procedure to maintain engine speed at 2000 - 2100 rpm and brake oil temperature below 120°C (248°F). When the proper gear range is attained, continue to use the retarder as needed to maintain a safe speed. If brake oil temperature exceeds 120°C (248°F), the brake oil temperature warning will turn on. As quickly as safety will permit, stop the truck away from traffic. Move the transmission shift lever to NEUTRAL and apply the parking brake. Operate the engine at high idle. As the body raises, the truck center of gravity will move. The truck must be on a level surface to prevent tipping! 2. Carefully maneuver the truck into dump posi- tion.
When backing the truck into dump position, use the foot-operated brake pedal to stop and hold the truck. Keep the engine at high idle until the brake oil tem- perature warning light turns off and brake oil tem- perature cools to below 120°C (248°F). If the temperature does not return to this range within a few minutes, immediately report the condition to maintenance personnel. Wait for further instructions before moving the truck. 3. When in the dump position, place the transmis- sion shift lever in NEUTRAL, and apply the brake lock switch. PASSING 1. DO NOT pass another truck on a hill or at a blind curve! 2. Before passing, ensure 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. FIGURE 30-5. HOIST CONTROL 1. Hoist Control Lever 2. FLOAT/HOLD Position 3. POWER DOWN Position 4. POWER UP Position 5. Center Console