Doosan D82, Operation And Maintenance Manual

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Operating & Maintenance Manual TROUBLESHOOTING
56
Table 3: Machine Will Not Run
Table 4: High Airend Temperature Shutdown SECU CODE 1
Cause Corrective Action
Out of fuel Add clean diesel fuel.
Low fuel shutdown (option) Add clean diesel fuel. See table 11.
Airend discharge temperature too high See table 4.
Separator temperature to high See table 5.
Engine oil pressure too low See table 8.
Engine coolant temperature too high See table 7.
Low battery voltage See table 6.
Regulation pressure sensor
malfunction(electronic engine models
only) See table 9.
Engine Fault (engine failure lamp
flashing) Refer to Engine Diagnostic Codes section.
Engine alternator malfunction Check voltage output. Check harness connections.
Replace engine alternator.
SECU controller malfunction Check harness connections. Replace SECU controller.
Cause Corrective Action
Dirty cooler Clean cooler.
Low compressor oil level Add oil. Check for leaks.
Clogged compressor oil filter elements Replace elements. Change oil.
Operating pressure too high Reduce pressure setting to within spec.
Recirculation of cooling air Close side doors. Relocate machine to ensure cool intake
air.
Dirty operating conditions Relocate machine to cleaner environment.
Machine out of level>15 degrees Relocate or level machine.
Ambient temperature>120°F (49°C) Above spec. limit.
Wrong compressor lube oil Check oil spec. in this manual.
Bypass valve thermostat malfunction Replace thermostat.
Loose or broken belts Tighten belts. Replace belt set.
Minimum pressure valve malfunction
(optional) Repair or replace valve.
Engine fan malfunction Inspect fan. Replace if damaged.
Blocked or restricted oil lines Clean by flushing. Replace oil lines.
Airend malfunction Consult dealer.
Airend discharge temperature switch
malfunction Check harness connections. Replace switch.
SECU controller malfunction Check harness connections. Replace SECU controller.