1981 Oshkosh B Series Recalls

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NHTSA Campaign Number: 91V089000
Manufacturer: OSHKOSH CORPORATION
Manufactured Begin Date: June 1st, 1975
Manufactured End Date: June 1st, 1990
Date of Owner Notification: August 2nd, 1991

Defect Summary:
STEP TREAD WAS DESIGNED WITH AN UPTURNED EDGE. ALSO, INCORRECT BOLTS WERE USED TO ATTACH THE STEPS TO VEHICLE; INCORRECT BOLTS MAY FATIGUE AND BREAK ALLOWING THE STEPS TO SEPARATE FROM CAB.

Consequence Summary:
PERSONS EXITING THE CAB CAN TRIP AND FALL ON UPTURNEDEDGES. ALSO, FATIGUE OR BROKEN BOLTS COULD CAUSE THE STEPS TO BREAK AWAY AT THETIME THAT A PERSON IS ENTERING OR EXITING THE VEHICLES.

Corrective Summary:
REPLACE INCORRECTLY DESIGNED STEPS, REPLACE INCORRECT BOLTS.

Recall Notes:
SYSTEM: CAB STEPS.VEHICLE DESCRIPTION: HEAVY TRUCKS.

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NHTSA Campaign Number: 84V110000
Manufacturer: OSHKOSH CORPORATION
Manufactured Begin Date: November 1st, 1977
Manufactured End Date: September 1st, 1984
Date of Owner Notification: September 14th, 1984

Defect Summary:
THESE TRUCKS WERE EQUIPPED WITH DEFECTIVE HYDRAULIC PRESSURE SWITCHES IN THE LOAD SPAN TAG SYSTEM. WHEN A MALFUNCTION IN THIS SYSTEM OCCURS, AXLE TO PAVEMENT PRESSURE INCREASES WHEN VEHICLE IS OPERATED IN AN UNLOADED CONDITION.

Corrective Summary:
THE EXISTING CONTROL SWITCH WILL BE REPLACED WITH A THREE-POSITION SWITCH WHICH, BY USE OF A NEUTRAL POSITION, WILL PREVE NT PRESSURE BUILDUP. A NEW OPERATION LABEL WILL ALSO BE INCLUDED.

Recall Notes:
VEHICLE DESCRIPTION: HEAVY TRUCKS EQUIPPED WITH "LOAD SPAN TAG AXLES".SYSTEM: SUSPENSION; TAG AXLE.CONSEQUENCES OF DEFECT: THIS INCREASE IN PRESSURE CAN REDUCE BRAKING POWER ANDSTEERING CONTROL, POSSIBLY RESULTING IN AN ACCIDENT.