Mack Cf 1974

Model Cf made in 1974 by Mack got 6 recalls. There were some recalls concerningengine and engine cooling, service brakes, air and steering.

Model 1974

Recalls


CampaignManufacturerManufacturing dateType# of units affectedDate Owner notified MfgRecall Initiated byManufacturers of recalled vehicles/productsReport Recieved DateRecord Creation DateRegulation Part NumberFMVSS Number
ENGINE AND ENGINE COOLING - COOLING SYSTEM - FAN
77V173000MACK TRUCKS, INCORPORATED V (Vehicle)4800003/23/1978ODIMACK TRUCKS, INC10/12/197710/12/1979
Defect SummaryThe flex blade fans on the involved vehicles may develop cracks in the laminated stiffener as a result of fatigue during operation. if such a condition exists and the cracks go undetected, continued operation could cause pieces of the stiffener to break off.
Consequence Summary
Corrective SummaryDealer will replace the original fan with a steel fixed blade fan, free of charge.
NotesVehicle description: trucks equipped with six-cylinder engines.system: engine cooling; fan.consequences of defect: broken pieces can be propelled outside of the fanshroud and will present an immediate danger and possible injury to personsstanding nearby.note: prior to correction, vehicle should not be serviced with the hood raisedand the engine running.
SERVICE BRAKES, AIR - SUPPLY - HOSES, LINES/PIPING, AND FITTINGS
75V143000MACK TRUCKS, INCORPORATED V (Vehicle)36312/15/1975MFRMACK TRUCKS, INC07/28/197510/12/1979
Defect Summary
Consequence Summary
Corrective Summary
NotesMack campaign no sc065.model fire chassis may 17, 1972 thru june 23, 1975.possibility of interference between the front axle brake chamber inlet and theshock absorber brackets.under certain operating conditions and with the frontwheels turned either to the extreme left or right direction, the air inletfitting could contact the front axle shock absorber upper bracket and causeinlet fitting to break.this would result in loss of braking on the affectedwheel, and could affect steering stability during brake application.(correctby inspecting and relocating fitting to preclude contact with shock absorberbracket).
STEERING - LINKAGES
91V070000MACK TRUCKS, INCORPORATEDfrom 12/01/1967 to 12/01/1990V (Vehicle)367306/23/1992MFRMACK TRUCKS, INC05/01/199105/15/1991
Defect SummaryStresses imposed on the lever during turning maneuvers and/or impact incidents, such as would be caused by curbs or road surface irregularity, reduce the life expectancy of the part. the steering lever may crack and eventually the stresses could cause the steering lever to break.
Consequence SummaryA broken steering lever will cause loss of steeringcontrol without prior warning which may result in a vehicle crash.
Corrective SummaryReplace the defective steering arms.
NotesSystem: steering levers.vehicle description: cf model fire chassis with gross axle weight ratings of12,000 pounds or greater and equipped with power steering.note: the specific mack axles affected are: fa532, faf532, fafw537, fafw5372,fafw13.5, faw538, faw14.3, fa604, fa6042, faw616, faw618, faw617, and faw20.
STEERING - LINKAGES - KNUCKLE - SPINDLE - ARM
78V172000MACK TRUCKS, INCORPORATED V (Vehicle)1380002/22/1979MFRMACK TRUCKS, INC08/08/197810/12/1979
Defect SummaryThe existing cross steering arms may have insufficient fatigue life in the neck area. this is near the boss for the cross steering tube ball joint connection. failure of either of the cross steering levers could lead to loss of steering control of the right front wheel.
Consequence Summary
Corrective SummaryThe dealer will inspect and, if necessary, install cross steering arms of improved design and greater strength.
NotesVehicle description: truck tractors.system: steering; steering arm.consequences of defect: loss of steering control could lead to loss of vehiclecontrol and an accident.
STEERING - WHEEL AND HANDLE BAR
85V157000MACK TRUCKS, INCORPORATEDfrom 06/01/1973 to 10/01/1985V (Vehicle)14308/27/1986MFRMACK TRUCKS, INC11/26/198512/04/1985
Defect SummaryThe splined steering shaft may not be sufficiently engaged as designed due to inaccurate drilling of the holes in the frame to which the cab front mount member is bolted. under certain conditions the steering shaft may disengage. consequence of defect: a jarring impact might cause disengament of the splined shaft resulting in loss of steering control and possibly an accident.
Consequence Summary
Corrective SummaryReplace shafts which measure under the minimum engagement dimensions with longer shaft.
NotesSystem: steering shaft. vehicle description: fire trucks.
VEHICLE SPEED CONTROL
74V097000MACK TRUCKS, INCORPORATED V (Vehicle)3308/02/1974MFRMACK TRUCKS, INC06/24/197410/12/1979
Defect Summary
Consequence Summary
Corrective Summary
NotesMack campaign no.fire appratus with william air throttle control.built sep1 1973 thru apr 30 1974.possibility that the valve cage assembly, an internalpart of the accelerator system, could fracture resulting in an air leak orcomplete malfunction.if this occurs, it may result in poor acceleration orthe throttlesticking in any position.(correct by inspecting and installingimproved valve repair kit).