Tmc Mc8 1977

Model Mc8 made in 1977 by Tmc got 2 recalls. There was one recall concerning service brakes, air .

Model 1977

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
79V188000TRANSPORTATION MFG. CORP.from 01/01/1975 to 01/01/1977V (Vehicle)74810/18/1979OVSCMOTOR COACH INDUSTRIES, INC08/15/197910/12/1979571121
Defect SummaryThe involved vehicles have the following non-compliances: the low air warning signal may not activate until the service reservoir pressure is below 60 psi. in addition, the brake release time may exceed 0.55 seconds at the right front wheel, which constitutes a non-compliance to federal motor vehicle safety standard no. 121, air brake systems.
Consequence Summary
Corrective SummaryDealer will adjust the pin switch to the proper pressure to bring the vehicle into compliance with safety standard no. 121.
NotesVehicle description: buses, intercity.system: service brakes; brake system.consequences of defect: air pressure may fall too low and vehicle operatorwould not be warned. resulting partial loss of braking action could cause lossof vehicle control and an accident. slow brake release time would also affectbraking performance and could lead to an accident.
SERVICE BRAKES, AIR - SUPPLY
78V008000TRANSIT MANUFACTURING,INCfrom 08/01/1976 to 10/01/1977V (Vehicle)52711/30/1977MFRMOTOR COACH INDUSTRIES, INC01/16/197810/12/1979571121
Defect SummaryThe involved vehicles may not comply with federal motor vehicle safety standard no. 121, modulated emergency braking. the o rings in the shuttle valve may develop slight leaks in cold weather. in addition, neoprene washers used on these o rings may eventually expand or pucker in cold climates, making it possible for the shuttle piston to become trapped by the inner-circumferences of the washers. this would force the emergency brakes to the on position and would prevent them from being released.
Consequence Summary
Corrective SummaryThe dealer will replace the two neoprene washers with glass filled teflon washers that will not be affected by cold climates.
NotesVehicle description: buses.system: emergency brakes; shuttle valve.consequences of defect: should the emergency brakes become locked duringvehicle operation, loss of vehicle control and an accident could result.