ENGINE AND ENGINE COOLING:ENGINE
Aug 1, 1990
11,000 units potentially affected
The defect: INCORRECT TORQUE ON THE GOVERNOR INPUT ASSEMBLY COULD CAUSE IT TO LOOSEN AND BACK OUT, INTERFERING WITH THE GOVERNOR HOUSING OPERATION. ALSO THE TORSION SPRING ON THE ACCELERATOR INPUT WAS INSTALLED INCORRECTLY AND COULD DISLODGE, PREVENTING THE GOVERNOR AND ACCELERATOR FROM PROPERLY CONTROLLING THE ENGINE SPEED.
The risk: WITHOUT GOVERNOR OPERATION, THE DRIVER COULD OVERSPEED THE ENGINE, CAUSING LOSS OF CONTROL OF VEHICLE SPEED.
The remedy: ASSURE PROPER ASSEMBLY AND TORQUE ON 8C8580 BOLT, AND PROPER INSTALLATION OF 7W9526 TORSION SPRING.
CATERPILLAR TRACTOR CO.View on NHTSA.gov