W900: PARKING BRAKE:DRIVELINE:AIR

Go Back To 1978 PACCAR INCORPORATED Directory

NHTSA Campaign Number:	79V059000
Vehicle/Equipment Make:	KENWORTH
Vehicle/Equipment Model:	W900
Model Year:	1978
Manufacturer Campaign Number:
Manufacturer Component Description:	PARKING BRAKE:DRIVELINE:AIR
Manufacturers Involved in Recall:	PACCAR, INCORPORATED
Manufacturered:	19780601 - 19781101
Type of Report:	V (Vehicle, Equipment or Tire)
Potential Number of Units Affected:	2620
Date Owner Notified By Manufacturer:	19790215
Recall Initiated By:	19790215
Manufacturer Responsible For Recall:	PACCAR INCORPORATED
Report Received Date:	19790223
Record Creation Date:	19791012
Regulation Part Number:
Federal Motor Vehicle Safety Standard Number:
Defect Summary:	THE PARKING BRAKE VALVES MAY HAVE BEEN INCORRECTLY PIPED. IF THE PARKING BRAKE PIPING IS INCORRECTLY ROUTED, THERE IS NO WAY TO SET THE TRACTOR PARKING BRAKES INDEPENDENTLY OF THE TRAILER PARKING BRAKES. THIS COULD CAUSE THE PARKING BRAKES TO BACK OFF WHILE THE TRAILER AIR SUPPLY IS BEING CHARGED, CAUSING THE TRACTOR TO ROLL.
Consequence Summary:
Corrective Summary:	TRAILER AIR SUPPLY WILL BE MOVED FROM THE DISCHARGE SIDE OF THE TRACTOR PARKING VALVE TO THE DISCHARGE SIDE OF THE COMBINATION PARKING VALVE. THIS SERVICE WILL BE DONE AT NO CHARGE.

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