6 recalls found. |
DEFECT #1 - STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
Posted on: 1979-10-12
Description
Deficiencies, in the form of forging laps, cracks and excessive decarburization during heat treatment, exist in the steering knuckles. Stresses imposed with integral hydraulic power steering may lead to a failure in the area of the steering arm attaching boss. This type of failure would cause loss of steering control.
Consequence
Corrective Action
Dealer will inspect and, if necessary, replace the left steering knuckle with an improved type of knuckle.
Notes
Vehicle description: truck tractors.system: steering; steering knuckle.consequences of defect: loss of steering control could cause a vehicleaccident.
DEFECT #2 - SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
Posted on: 1979-10-12
Description
Consequence
Corrective Action
Notes
Mack campaign no sc028.chassis ca47 or cas48.jan.1971 th ru june 1971.truck tractors.possibility that right hand sp lash apron may contact righthand air brake hose, which wouldcause chafing action resulting in wearingthrough of the air h ose causing reduced braking effeciency.(correct byinspectin g and removing portion of splash shield to preclude any possib lecontact with fuel return line.)
DEFECT #3 - POWER TRAIN:AXLE ASSEMBLY:BANJO HOUSING
Posted on: 1979-10-12
Description
Consequence
Corrective Action
Notes
Mack trucks campaign no n/a.with sn56 and sw57 bogie housings.built mar1971 thru jun 1972.trucks.possibility that the bogie housing wall thicknessat the left inner wheel bearing race may not meet specific dimensionalrequirements.if this condition exists, it could lead to spindle failure,resulting in loss of a rear wheel assembly.(correct by inspecting andreplacing brgie housing where necessary).
DEFECT #4 - FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
Posted on: 1979-10-12
Description
Consequence
Corrective Action
Notes
Mack service bulletin no g1003.equipped with american-bosch ape-8vbb fuelinjection pump.manfd 9-70 thru 10-16 1971.trucks.possibility that linkconnecting governor fulcrum lever to fuel injection pump control racks canbreak and cause loss of fuel delivery controlto engine.should this conditionoccur, it could impair vehicle control.(correct by inspecting and installingspring clip on fulcrum lever to prevent engine overspeed.)
DEFECT #5 - SUSPENSION:MULTIPLE AXLE
Posted on: 1979-10-12
Description
Consequence
Corrective Action
Notes
Mack trucks campaign no sc060.trucks mfg'd 1967 thru jan.31, 1973.possibility that the suspension trunnion brackets may develop cracks.if suchcondition exists and cracks are not detected, continued operation couldultimately lead to trunnion tube separation from the trunnion and permit axleassembly dislocation.failure of the trunnion bracket could result in loss ofvehicle control without warning to the driver.(correct by inspecting andreplacing brackets where necessary).
DEFECT #6 - STRUCTURE:BODY:BUMPERS
Posted on: 1979-10-12
Description
Consequence
Corrective Action
Notes
Mack campaign no x1001.trucks.w/sgp45 & sgp47 power steering gears.possibility that bumper deformation caused by impact may result in interferencebetween bumper and steering column universal joint.(correct by inspecting andreinforcing as required.)