SDEC D Series - Operation of Engine; Starting

Operation and Maintenance Manual SC9DF Electronically Controlled Diesel Engine for Agricultural Equipment
20
3 Operation of Engine
Oil, fuel and coolant with suitable specifications shall be chosen according to specific application environment and
conditions before running the diesel engine. The selected oil, fuel and coolant shall comply with technical
specifications as given in the Article 2.5.
Correct and reasonable application will enable the engine to have a longer service life, a better work performance and
a high economical efficiency.
3.1 Starting
3.1.1 Normal starting
 Check the accelerator lever for operational flexibility.
 Disconnect the engine from the drive system, and move the transmission gear (if equipped) to the neutral
position.
 Wait until the preheating indictor lamp goes out.
 No need to press the accelerator pedal when starting.
△Caution: To avoid damages of the starting motor, the starting time shall be less than -15 seconds when
ambient temperature is -15℃ and above, less than 30 seconds when ambient temperature is below -15℃. The
interval of two starting shall be at least 2 minutes (for the starter motor only).
 Each starting usually lasts 2-3 seconds.
 Check preheating device and electronically controlled fuel system if the engine is failed to start to run after three
consecutive startups.
 The diesel engine will run at the idle speed of 700 RPS after being started. Under low temperature condition, the
idle speed will go up automatically to speed up the engine warm-up. The diesel engine speed will automatically
come back to normal idle speed when the water temperature reaches 60℃.
 The oil pressure must be indicated on the pressure meter within 15 seconds after the engine has been started
up, if not, immediately turn off the diesel engine in order to avoid being damaged. And then check the oil level.
 When the diesel engine is started from cold state, increase the speed slowly to ensure full lubrication of all
bearings; do not fully step down the accelerator pedal at unloaded condition.