Recalls for 1993 Kenworth Kenworth

DEFECT #1 - SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS

Posted on: 1995-09-26
Description
Air system blockage in the air dryer occurs degrading the moisture removing capabilities of the dryer when the vehicle is operated in a cold environment and moisture accumulates and freezes in the air dryer or in the line between the dryer and the air system reservoir.  The air dryer can become over pressurized causing the air dryer cartridge to separate from the mounting base.

Consequence
If the air dryer separates from the base, the cartridgecan separate sufficiently enough to cause personal injury or property damage.

Corrective Action
Dealers will equip air systems with a pressure relief valve to be located between the compressor and the air dryer.  This pressure relief valve is intended to vent if excessive pressure develops in the air dryer.

Notes
System: brakes; air dryer.vehicle description: heavy duty trucks equipped with rockwell wabco system saver 1000 or system saver twin air dryers.note: if your vehicle is presented to an authorized dealer on an agreed upon service date and the remedy is not provided free of charge with in a reasonable time, contact peterbilt at 1-510-790-4013 or kenworth at 1-206-828-5418.also contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.

DEFECT #2 - STEERING:LINKAGES

Posted on: 1993-03-29
Description
An incorrect tool was used to install pitman arm pinch bolts, resulting in inadequate torque on the pitman arm pinch bolts.

Consequence
Inadequate torque on the bolts allows the pitman armto slip on the steering gear output shaft which results in loss of vehiclecontrol.

Corrective Action
Apply correct torque to inadequately torqued pinch bolts.

Notes
System: steering.vehicle description: heavy trucks manufactured at the ste.  Therese, canadafacility between december 18, 1992 and march 8, 1993.