The issue
VEHICLES EQUIPPED WITH A SHEPPARD 392S MASTER STEERING GEAR AND 292 SLAVE GEAR, 20,000 POUND FRONT AXLE, AND A 34.5 INCH SPRING CENTRE CAN EXPERIENCE COMPRESSION OF THE FRONT SPRINGS TO AN EXTENT THAT WOULD CAUSE AN INTERFERENCE WITH THE 90 DEGREE CROSSOVER FITTINGS ON THE BOTTOM OF THE GEARS. IF ONE OF THE FITTINGS WERE TO BREAK, LOSS OF HYDRAULIC FLUID WOULD CAUSE LOSS OF POWER STEERING WITH POSSIBLE LOSS OF CONTROL AND A VEHICLE CRASH. CORRECTION: EXISTING CENTRE PORT STEERING GEAR CYLINDER HEADS WILL BE REPLACED WITH NEW SIDE PORT CYLINDER HEADS IN ADDITION TO THE INSTALLATION OF THICKER BUMPER STOPS TO ELIMINATE SPRING GEAR CONTACT.
Description (français)
Les ressorts avant des véhicules dotés du boîtier de direction Sheppard 392S et des commandes de direction asservies 292s, d'un pont avant de 20 000 lb et de ressorts de 34,5 cm (longueur entre oeillets) peuvent se comprimer au point que le coude de croisement peut toucher à la partie inférieure des engrenages. Si l'un des coudes se brise, il en résulterait une panne de la direction assistée, voire une collision.
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada · official text, unchanged
Vehicles covered
| Make and model | Model years |
|---|---|
| Mack RD600 | 1987, 1988 |