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Unscheduled Maintenance

Date Test Miles Service Activity Downtime Hours
01-18-13 1664 The DEF tank will not fill completely. Removed fill hoses and reinstalled to eliminate kinks. 1.0 1.0
01-18-13 1664 The clamp on the exhaust particulate filter is broken. Replaced broken clamp. 6.0 0.5
01-18-13 1664 Both rear spring packs are breaking up: left rear broken radius leaf and broken #9 leaf, both ends. Right rear broken broken #9 leaf on both ends. Removed both rear spring packs. Repairs pending delivery of new spring packs. 184.0 3.0
01-23-13 2651 Both rear spring packs are breaking up. Replaces both rear spring packs. 24.0 4.0
02-01-13 5277 The Multifunction Head Unit on the DEF tank is not functioning properly. Replaced Multifunction Head Unit. 53.0 8.0
02-26-13 6197 "Check Engine" and "SCR System Fault" lights are on. Cummins rep connected "Insite" for troubleshooting. Code 3471 active. Cleaned dosing unit and replaced gasket. Test drove vehicle. No active codes. 264.0 8.0
02-27-13 6262 "Check Engine" and "SCR System Fault" lights are on. Cummins reps connected "Insite" for troubleshooting. Rep found nine active codes. When connector replaced codes, "Inactive" problems fixed. Road test good. 16.0 8.0
03-04-13 6524 "Check Engine" and Stop Engine" lights are on "SCR System Fault" screen is on. Cummins rep connected "Insite" Read codes: 3597 and 3547. Ordered new DEF sensor and calibrated DEF controller. 40.0 8.0
03-05-13 6524 "Check Engine" and "Stop Engine" lights are on "SCR System Fault" screen is on. Cummins rep recalibrated ECM. Code 3547 now inactive. Code 3597 is now active. Bus manufacturer will send tech to troubleshoot code 3547 and J1937 problem. 24.0 8.0
03-08-13 6548 "Check Engine" and "Stop Engine" lights are on "SCR system Fault" screen is on. Manufacturer's rep troubleshooting J1939 communication harness. Found J1939 wire shorted to a P-clip rear of NOX sensor. Repaired wire. Performed stationary regen using "Insite". 8.0 5.0
04-05-13 10781 The exhaust hanger is broken. Replaced exhaust hanger. 4.0 2.0