S05kc

Transcript

November 11, 2005 Dear Blue Bird Owner: You will find enclosed Service Bulletin S05KC regarding routing of the wheelchair lift positive power cable within the power distribution unit (PDU) on All American front engine buses equipped with Option 30192 Wheelchair Lift. The wheelchair lift positive cable must be routed within the PDU according to instructions provided in Service Bulletin S05KC. Copy attached. Service Bulletin S05KC should be performed by a qualified repair technician. You may contact your appropriate Blue Bird distributor for assistance. No parts are required to perform Service Bulletin S05KC. Time allowed to perform Service Bulletin S05KC is eighteen minutes (0.3 hr.) per bus. Service Bulletin S05KC expires one year from date of issue. If you no longer own the bus (es) identified on the enclosed cover sheet, please indicate new owner in the “sold to” section of the cover sheet and return to us at the address below: BLUE BIRD BODY COMPANY P.O. BOX 937 FT. VALLEY GA 31030 ATTN: TECHNICAL PUBLICATIONS Should you have any questions concerning this bulletin, please contact your Blue Bird distributor. Sincerely, Bill Coleman Blue Bird Corporation BULLETIN Lift Power Cable Relocation CORRECTIVE ACTION Inspect the routing of the wheelchair lift cable in the PDU box. If the cable is connected to the clean power terminal, relocate it to the main power terminal per the instructions below. PROCEDURE 1 Park vehicle on level surface. Remove key and chock wheels. 2 Locate the chassis PDU box mounted under the front left side of the bus directly below the Driver’s Area. Loosen the four latches and remove the cover. The exact appearance of the affected connections depends upon whether the bus is equipped with an Ammeter Shunt; with a DC Sensor; or with neither. 3 Locate the Wheel Chair power cable which is connected to the Wheel Chair Lift circuit breaker. • If the opposite end of the cable is connected to the main power terminal, no change is required. Replace the PDU cover. Sign and return the sheet provided with this bulletin. • If the opposite end of the cable is connected to the terminal stud for “clean” power (intended for electronic equipment), rework and relocate the connection as follows. INCORRECT PDU with Ammeter Shunt Lift Cable Connected to Clean Power Terminal W/C Lift Power Cable Ammeter Shunt W/C Lift Power Cable DC Sensor PDU with DC Sensor Connection is similar for buses with neither shunt nor sensor. B U L L E T I N On buses with Wheel Chair Lift Option 30192, the positive power cable from the wheelchair lift circuit breaker may be incorrectly attached to the positive “clean” electrical power terminal. S E R V I C E ISSUE S05KC MODELS AFFECTED: 2004 to 2006 A3FE with Option 30192 Wheel Chair Lift page 1 of 2 4 Open the battery compartment and disconnect negative battery terminal. 7 Connect the wheelchair lift cable to the main power terminal. Reinstall the terminal nut and tighten to 120 in lb. 5 Remove the wheel chair lift power cable terminal from the clean power terminal. Reinstall the terminal nut and tighten to 50 in lb. 8 The procedure is complete. Replace the PDU cover. Reconnect the battery. Test the operation of the wheelchair lift. Remove wheel chocks. The bus may be returned to service. B U L L E T I N Drill the hole of the cable’s end terminal to 13/32”. CORRECT Lift Cable Connected to Main Power Terminal S E R V I C E 6 The hole of the terminal end disconnected in step 5 is 9/32” diameter. Using a 13/32” drill bit, enlarge the hole so it will properly fit the main power terminal. S05KC BULLETIN page 2 of 2