1974 Dorsey Dorsey Recalls

---

NHTSA Campaign Number: 78V234000
Manufacturer: DORSEY CORPORATION
Manufactured Begin Date: October 1st, 1974
Manufactured End Date: September 1st, 1977

Defect Summary:
THE PISTON IN THE ANTILOCK VALVE COULD STICK DUE TO EXPOSURE TO HIGH CONCENTRATIONS OF FLUID CONTAMINANTS THAT MAY COLLECT IN THE TRAILER BRAKING SYSTEM. CONSEQUENTLY, NO AIR WOULD BE DELIVERED TO THE BRAKE CHAMBERS NORMALLY SUPPLIED BY THAT VALVE. THIS COULD RESULT IN A "NO BRAKE" CONDITION ON THE AFFECTED AXLES. THIS CONSTITUTES A NON-COMPLIANCE TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS".

Corrective Summary:
THE DEFECTIVE VALVE WILL BE REPLACED WITHOUT CHARGE.

Recall Notes:
VEHICLE DESCRIPTION: TRAILERS.SYSTEM: SERVICE BRAKES; ANTILOCK AIR VALVE.CONSEQUENCES OF DEFECT: LOSS OF BRAKING CAPABILITY COULD RESULT IN A VEHICLEACCIDENT.NOTE: UNTIL THE VALVE IS REPLACED, ANY FLUIDS SHOULD BE DRAINED FROM THE BRAKESYSTEM DAILY AND FLUIDS SHOULD NOT BE ADDED DIRECTLY INTO THE BRAKE LINE.

---

NHTSA Campaign Number: 79V076000
Manufacturer: DORSEY CORPORATION
Manufactured Begin Date: December 1st, 1965
Manufactured End Date: April 1st, 1978
Date of Owner Notification: May 14th, 1979

Defect Summary:
REINFORCEMENT GUSSETS WERE OMITTED DURING INSTALLATION OF SOME PINTLE HOOKS. THIS MAY RESULT IN CRACKING OF THE WELDS ON THE PLATE SECURING THE PINTLE HOOK MOUNT. FAILURE OF THE PLATE WELDS MAY RESULT IN COMPLETE SEPARATION OF THE REAR TRAILER FROM THE FIRST.

Corrective Summary:
DEALER WILL INSPECT AND, IF NECESSARY, INSTALL REINFORCEMENT GUSSETS TO PRECLUDE PINTLE HOOK FAILURE.

Recall Notes:
VEHICLE DESCRIPTION: TRAILERS.SYSTEM: EQUIPMENT; REAR PINTLE HOOK.CONSEQUENCES OF DEFECT: SEPARATION OF A TRAILER MAY CAUSE ACCIDENT AND INJURIESTO OTHER DRIVERS ON THE ROAD.

---

NHTSA Campaign Number: 74V212000
Manufacturer: DORSEY CORPORATION

Recall Notes:
DORSEY CAMPAIGN NO N/A.TRAILER.POSSIBILITY THAT THE BRAKE MATERIAL MAY FAILBETWEEN THE BRAKE SHOE CASTING AND ONE PIECE CAM ROLLER.THIS CONDITION WOULDAFFECT THE BRAKING ABILITY OF THE VEHICLE.(CORRECT BY INSPECTING ANDREPLACING THE BRAKE SHOE AND CAM ROLLER SHAFT).