www.changlin.com.cn Starting Procedure After Extended Shutdown or Oil Change NOTE: If the engine is allowed to run out of fuel air is pulled into full lines. Refer to Fuel System—Bleeding, Section 5, for instructions to vent the fuel system. Operating the Engine Do not operate the engine at full throttle below peak torque engine speed (RPM) for extended periods (more than a minute) of time. Allow the engine to idle 3 to 5 minutes before shutting the engine off after a full load operation. Monitor the lubricating oil pressure and coolant temperature gauges frequently, Refer to Engine Specifications (Section V) for recommended operating pressures and temperatures.
Shut the engine off if any pressure or temperature does not meet the specifications. Caution: Continuous operation with low coolant temperature (below 60 °C [140 °F]) or high coolant temperature (above 100 °C [212 °F]) can damage the engine. If an overheating condition starts to occur reduce engine speed or shift to a lower gear, Or both, until the temperature returns to normal operating range. If engine temperature does not return to normal, refer to Troubleshooting (Section T) or contact a Cummins Authorized Repair Location. Most failures give an early warning. Look and listen for changes in performance, sound, or engine appearance that can indicate service or engine repair is needed.
Some changes to look for are: Engine misfires — Excessive smoke Vibration — Loss of power Unusual engine noises — An increase in oil consumption Fuel, oil or coolant leaks — An increase in fuel consumption Sudden changes in engine operating temperature or pressure 30 / 149 pages C s omplete the following steps after each lubricating oil change, or after the engine has been shut off for more than 30 days to make sure the engine receives the correct oil flow through the lubricating oil ystem: • Disconnect the electrical wire from the fuel injection pump solenoid valve. • Rotate the crankshaft, using the starting motor, until oil pressure appears on the gauge, or the warning light goes out.
• Connect the electrical wire to the fuel injection pump solenoid valve. • Start the engine; refer to Normal Starting Procedures in this section. • Refer to Fuel System-Bleeding, Section 5, for instructions to vent the fuel system.