SENATOR S II

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Supreme Corporation submitted a model Senator SII, diesel-powered 17 seat (including the driver) 24-foot bus, for a partial STURAA test in the 7 yr/200,000 mile category.  The Federal Transit Administration determined that the following tests would be performed: 2. Reliability and 5.7 Structural Durability Test.  Testing started on January 7, 2005 and was completed on March 4, 2005.  The Check-In section of the report provides a description of the bus and specifies its major components. 

 The partial test which involved the Structural Durability Test also provides the information for the Reliability results.  The Structural Durability Test was started on January 13, 2005 and was completed on March 3, 2005.

 The interior of the bus is configured with seating for 17 passengers including the driver and two wheelchair positions.  Free floor space will accommodate 11 standing passengers resulting in a potential capacity of 28 persons and two wheelchair positions.  At 150 lbs per person and 600 lbs per wheelchair position, this load results in a measured gross vehicle weight of 15,560 lbs.  In order to avoid exceeding the GAWR (9,450 lbs) of the rear axle, ballast for eight standing passengers and one wheelchair position was eliminated.  This reduction from full capacity resulted in an adjusted measured gross vehicle weight of 13,840 lbs and was used for all dynamic testing.  The SLW segment was performed at 13,440 lbs.  Note:  one wheelchair position was eliminated in order to avoid exceeding the GAWR (9,450 lbs) of the rear axle, and the final segment was performed at a CW of 10,250 lbs. Durability driving resulted in unscheduled maintenance and failures that involved a variety of subsystems.  A description of failures and a complete and detailed listing of scheduled and unscheduled maintenance are provided in the Maintainability section of this report.

            The Reliability section compiles failures that occurred during Structural Durability Testing.  Breakdowns are classified according to subsystems.  The data in this section are arranged so that those subsystems with more frequent problems are apparent.  The problems are also listed by class as defined in Section 2.  The test bus encountered no Class 1 or Class 2 failures.  Of the four reported failures, one was a Class 3 and three were Class 4.

 

Number: 0502-P
Model: SENATOR S II
Manufacturer: SUPREME CORPORATION
Vin Number: 1FDXE45P44HA74490