SDEC D Series - Engine Is Difficult to Start or Cannot Start; Troubleshooting Guidelines and Diagnosis Codes

Operation and Maintenance Manual SC9DF Electronically Controlled Diesel Engine for Agricultural Equipment
49
5 Troubleshooting Guidelines and Diagnosis Codes
Only when correct operation and regular maintenance is done as required in this manual can failure(s) be eliminated
effectively. Any abnormal condition during the engine operation shall deserve attention and be eliminated timely.
Some typical engine failures, possible causes and acceptable solutions are listed in this manual. If a failure is unclear
or not repairable, or problems not listed in this manual, please contact SDEC’s after-sale service center at
spare@sdecie.com
 Engine is difficult to start or cannot start
 Sudden misfire
 Engine’s power loss
 Fuel consumption is too high
 Oil consumption is too high
 Oil pressure is too high
 Oil pressure is too low
 Engine is overheating
 Black smoke
 Coolant temperature is too low
 Excessive noise
 Excessive Vibration
 Alternator cannot be charged or fully charged
5.1 Engine is difficult to start or cannot start
Possible Causes Correction
The starter motor runs
abnormally
The starting line is loose or corroded Clean and tighten the line connector
The battery is charged insufficiently Charge or replace the battery
The starter motor and electrical system
occurs faults
Consult the authorized service station or
provider
Starter motor runs normally The starting procedure is incorrect See Section 3.1 Starting Procedure