10/12/2010
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Company Confidential
ENGINE TROUBLESHOOTING
• Engine diagnostics available by flash codes
– More info can be extracted when using Yanmar YDT tool.
– YDT also allows programming of injector or pump when replacing
such items.
• EGR valve
– This valve has a self test function which compares travel with limits
stored in ecu.
– Limited valve travel could be caused by a sooth loaded valve
• Blocked airfilters – injector or pump issue – bad fuel.....
Company Confidential
ENGINE PARTS REPLACEMENT PROCEDURES
• Injector replacement
– New Injector trim file should be loaded in engine ecu (YDT)
• Pump replacement
– New pump data needs to be loaded in engine ecu (YDT)
• Rack Actuator
– Is mounted on the fuel pump
• Cannot be ordered separately
needs to be replaced by a Tier 3
certified Yanmar fuel injection repair shop and pump recalibrated.
• Only other option is to order a new pump.
• Engine ECU
– Can be ordered from our warehouse pre-programmed after receiving
the correct engine data or program by dealer with YDT.
Company Confidential
Service Letter
• 7/20
SL 40001 Separator install flange
SL 40002 New exhaust design
• 7/31-7/41
SL 40007 Wire Harness protection
• 7/26E-7/31E
SL 40012 Fuel Filter bracket relocation
• 7/71
SL 40013 New Coupling JD unit
• YANMAR
SL 40004 Yanmar Diagnostic Tool
• 7/20
7/51
SL 40015 Heavy duty hose clamp
