United States 98V054000
THOMAS BUILT BUSES, INC.
The problem
VEHICLE DESCRIPTION: SCHOOL AND TRANSIT BUSES EQUIPPED WITH NON-ELECTRONIC CUMMINS B5.9L ENGINES. THE SLIDING ACTION OF THE ACCELERATOR LINKAGE LEVER OVER THE HAND THROTTLE CABLE CAN CAUSE THE HAND THROTTLE WIRE TO WEAR A NOTCH IN THE ACCELERATOR LINKAGE RESULTING IN BINDING OF THE LINKAGE. THIS FAILS TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 124, "ACCELERATOR CONTROL SYSTEMS."
Risk
SUCH BINDING CAN PREVENT THE ACCELERATOR CONTROL FROM RETURNING TO IDLE QUICKLY OR FROM RETURNING TO IDLE POSITION AT ALL, INCREASING THE RISK OF A VEHICLE CRASH.
What owners should do
DEALERS WILL REPLACE THE EXISTING ACCELERATOR LINKAGE LEVER AND READJUST THE HAND THROTTLE CABLE, OR REPLACE THE EXISTING HAND THROTTLE ATTACHMENT CLIP AND READJUST THE HAND THROTTLE CABLE.
Units 2667