D346, D348 & D349 VEHICULAR ENGINES Caterpillar

1. Fasten the seat belt.

2. Check to be sure that the machine is ready to be moved. See the vehicle manufacturers recommendations.

3. Maintain the engine speed between 1200 to 2200 RPM. On a downgrade, the engine speed may go to 2350 RPM. Avoid overspeeding the engine. Never exceed 2500 RPM.

4. Upshift when the engine speed nears 2200 RPM. Shifting must be done above 1200 RPM. Avoid lugging and increases in exhaust temperatures.

When under a light load or, on a slight downgrade, upshift at approximately 1600 RPM.