Motor Coach Mc5b 1978

Model Mc5b made in 1978 by Motor Coach got 1 recall. There was one recall concerning service brakes, air .

Model 1978

Recalls


CampaignManufacturerManufacturing dateType# of units affectedDate Owner notified MfgRecall Initiated byManufacturers of recalled vehicles/productsReport Recieved DateRecord Creation DateRegulation Part NumberFMVSS Number
SERVICE BRAKES, AIR - SUPPLY
77V186000MOTOR COACH IND., INC. V (Vehicle)118210/05/1977MFRMOTOR COACH INDUSTRIES, INC10/25/197710/12/1979571121
Defect SummaryThe involved vehicles do not conform to federal motor vehicle safety standard no. 121, air brake systems. the two o rings that are supplied along with the new shuttle valves are of a buna v quality. these rings are fully functional in normal climate conditions, however, in extremely cold environments, slight leaks may develop. this valve acts as a seal between the cylinder heads of the shuttle valve and the piston. in time this seal may expand or pucker up, making it possible for the shuttle to become trapped in an emergency braking situation.
Consequence Summary
Corrective SummaryThe dealer will replace all defective o rings with ones having extreme cold resistance properties.
NotesVehicle description: motor homes equipped with new shuttle valves.system: service brakes; air control valve.consequences of defect: in this event, the brakes once on will not releaseand loss of vehicle control and an accident could result.note: driver should be alerted to this condition by a flashing light, buzzer,and a low reading on the air gauge.