9999 MIDLAND BRAKE MIDLAND BRAKE Recalls (4)
- Campaign:
- 85E031000 on 10/17/1985
- Component:
- Parking brake:driveline:air
- Manufactured:
- 01/31/1983 - 03/31/1983
- Affected:
- 39,000
- Defect:
- Diaphragm material which has rubber bonded to both sides of a nylon fabric reinforcement may have insufficient bond between the fabric and the rubber on one side of the diaphragm. if the diaphragm is installed with the insufficient bonded side down, it permits pressurized air to enter between the fabric and rubber causing delamination. this results in ballooning of the rubber material which restricts the flow of air from the spring brake and holds the spring brake in the release position. consequence of defect: if the spring brakes are used as a parking brake and the diaphragm defect prohibits the application of the spring brakes, a vehicle crash could occur in a roll away situation. where the spring brakes are employed as a secondary emergency brake, a vehicle crash could occur if the air brake system which includes the spring brakes, develops a partial or complete system failure through loss of air pressure and the diaphragm defect prohibits the application of the spring brakes.
- Correction:
- Replace valve and kits in stock and provide parts and instructions to repair valve in service at no cost to the consumer. note: valve date codes 10323 through 13653 and 10014 through 11214. kits date code feb 83 through apr 84 or b83 through m83 or a84 through d84.
- Notes:
- Vehicle category: trucks, tractors, and heavy trucks. system: brake, emergency/parking.
- Campaign:
- 87E036000 on 12/10/1987
- Component:
- Service brakes, air:controls:hand control
- Manufactured:
- 03/31/1987 - 10/31/1987
- Affected:
- 1,228
- Defect:
- Abnormal action of twisting the valve knobs can cause interference with normal valve operation.
- Consequence:
- The above interference prohibits the piston in the valvefrom performing its automatic function in case of either a loss of air pressurein the trailer system or a trailer break away and prevents the valve from beingoperated manually.
- Correction:
- Manufacturer will furnish new replacement and reimburse for installation up to $22.50.
- Notes:
- System: brakes/parking air brake systemvehicle category: tractor/trailer.
- Campaign:
- 89E004000 on 03/12/1989
- Component:
- Service brakes, air
- Manufactured:
- 04/30/1988 - 09/30/1988
- Affected:
- 4,809
- Defect:
- Hydrogen embrittlement of the screws used to hold together sections of the valve body. this condition causes the heads of the screws to break off under stress.
- Consequence:
- The loss of the screw heads allows the valve to comeapart and causes loss of braking ability, which could result in an accident.
- Correction:
- Screws will be replaced with a phosphate and oil treated screw rather than an electro deposited plating. the drive heads will be changed from square drive to a torx head screw.
- Notes:
- System: brakes/air.vehicle category: trailer air brake.
- Campaign:
- 98E004000 on 02/26/1998
- Component:
- Service brakes, air:slack adjusters
- Manufactured:
- 09/30/1994 - 01/27/1998
- Affected:
- 31,626
- Defect:
- Equipment description: maxibrake i actuators, type 20, type 24, type 30, and type 36. these brake actuators do not have an overstroke indicator. this does not comply with the requirements of fmvss no. 121, "air brake systems."
- Consequence:
- This condition can lead to reduced brake output if the brakes or not properly adjusted or when it is used without an automatic brake adjusting mechanism.
- Correction:
- Midland will provide owners with a modification kit which will make the brake system compliant.
- Notes:
- Owner notification is expected to begin during april 1998.owners who do not receive the free modification kit within a reasonable time should contact midland-grau at 1-316-365-6911.also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).
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