Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
AR860
AR860-Front Pivot Mount Inspection and Repair. Complaint-Pivot mount bolts having repeated premature failure. Cause-Spring pivot bolt movement allowed by elongated mounting hole. Correction-Inspect/replace bolt. Labor allowance 2 hours per unit. Vehicles affected-Units that have completed AR831 and built with the front pivot mount bolted to the ARBOC frame without welding. (Buses between SO# 2202 and 2736)
AR861
AR861-Upper Shock/Track Bar Mount Inspection and Repair. Complaint-Upper plates previously installed in AR839 are cracking and pulling away from frame. Cause-Insuffiecient/bad welds not holding under loads. Correction-Inspect/correct welds including drilling 1/8" stop holes into frame at the end of cracks and weld per procedure. Vehicles Affected-All Spirit of Mobility (SOM) units with Reyco Granning rear suspension where AR839 has already been completed.
AR856
AR856-Customer concern about location of Thomas Compressor in wet areas. Cause-Engineering design for placement. Correction- Relocate Thomas Compressor to driver side rear of vehicle.
AR854
AR854-Change Electrical Body to Aux Battery Connections. Complaint-Electrical body connections tied to starter battery instead of aux battery. Cause-Electrical design. Correction-Relocate battery connection and add jumper harness between circuit breaker and solenoid. Vehicles Affected Chevy SOM/SOF.
AR844
AR844-Lower Shock Bracket Replacement-Complaint-Restricted shock compression with new upper shock mount location (AR839). Cause-New location of upper shock bracket completed in AR839 (if completed previously). Correction-Remove both existing lower shock brackets and replace. Affects all SOM units with Reyco Granning rear suspension.
AR847
AR847-Loose Thermo King Power & Ground Lugs Inspection-Repair. Complaint-Power/Ground lugs looseat connection points at circuit breaker or ground bar. Cause-Lugs incorrectly crimped or loose connections at circuit breaker or ground bar. Correction-Review lugs for secure installation and lug crimp (repair as needed)
AR839
AR839-Upper Shock/Track Bar Mount Replacement. Complaint-Cracking at upper shock and track bar mounts on chassis frame. Cause-Concentrated stress loads. Correction- Drill 1/8" stop holes into frame at the end of the cracks and weld provided retrofit bracket in affected areas.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.