John Deere 450DLC — Excessive Drag in Turbocharger Rotating Members

Oil Dripping From Turbocharger Adapter JC89288,000019C –19–04APR06–1/1 Oil Dripping From Turbocharger Adapter Diagnostics Procedure –1/1 Excessive Drag in Turbocharger Rotating Members JC89288,000019D –19–04APR06–1/1 TM2361 (24JUN08) 9010-15-25 450DLC Excavator Operation and Tests 062608 PN=295 Diagnostic Information 1 Check Bearings • Check for lubrication of bearings. • Check for wear. Was problem found? YES: Repair or replace parts as necessary and retest. NO: Go to Intake and Exhaust Check. – – –1/1 2 Intake and Exhaust Check Check for leaks in the intake manifold and exhaust manifold. Was a leak detected? YES: Repair or replace parts as necessary and retest. NO: Go to Turbine Check.

– – –1/1 3 Turbine Check • Check clearance between turbine wheel and housing. • Check for broken blades on turbine. Was problem found? YES: Repair or replace parts as necessary and retest. – – –1/1 9010 15 25 1 Turbocharger Bearings and Seal Check Check for worn bearings and seals. Was the problem found? YES: Repair or replace parts as necessary and retest. NO: Go to Crankcase Pressure Check. – – –1/1 2 Crankcase Pressure Check Check for excessive crankcase pressure or plugged oil drain line. Was problem found? YES: Repair or replace parts as necessary and retest. – – –1/1