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Mack F Recalls

22 Transport Canada safety recalls for the Mack F, model years 1967–1987. Tap any recall for the hazard, affected models, and corrective action.

Mack F — Suspension High risk

Feb 9, 1987 Model years: 1981, 1982, 1983, 1984, 1985, 1986, 1987

NOTE: 1971 TO 1987 TRUCKS WITH NEWAY AIR RIDE DRIVE AXLE SUSPENSION. THE CHANNEL TYPE CROSSMEMBER INSTALLED WITH THE SUSPENSION CAN BE OVERSTRESSED AND CAN FAIL. THE BROKEN CROSSME

Also affects: Mack R, Mack Mr, Mack Rs, Mack Fm, Mack Mh

Mack F — Not Entered High risk

Apr 5, 1984 Model years: 1978, 1979, 1980, 1981, 1982

THE SPRING SEAT, WHICH IS LOCATED BETWEEN THE AXLE HOUSING AND THE REAR SUSPENSION SPRING PACK CAN DEFORM, RESULTING IN REDUCED CLAMPING FORCE IN THE SUSPENSION ASSEMBLY. THIS COUL

Also affects: Mack Cf, Mack Fm, Mack Mb, Mack Mc, Mack Mr

Mack F — Not Entered High risk

Apr 27, 1982 Model years: 1982

STEERING SHAFT JOINT YOKES MAY HAVE BRITTLE WELDS BETWEEN THE YOKE AND ITS MATING SHAFT. FIELD SERVICE LOADS MAY CAUSE FAILURE OF THE WELD AND LOSS OF YOKE TO WELD RETENTION. THIS

Also affects: Mack Dm, Mack Rm

Mack F — Not Entered High risk

Jul 9, 1981 Model years: 1979, 1980

THE BRAKE CONTROL KNOB COULD FALL OFF DUE TO THE LOCATION OF THE HOLE FOR THE RETAINING PIN BEING OFF THE CENTERLINE OF THE HOLE FOR THE VALVE PLUNGER. WHEN THE RETAINING PIN IS IN

Also affects: Mack Mc, Mack R, Mack U

Mack F — Not Entered High risk

Jan 26, 1981 Model years: 1977, 1978, 1979, 1980

VEHICLES MAY BE EQUIPPED WITH GARRISON G21 SERIES POWER STEERING VALVES WITH INSUFFICIENT CONNECTION TORQUE BETWEEN THE DRAK LINK ADAPTER AND VALVE HOUSING. THIS MAY RESULT IN THE

Also affects: Mack Rl, Mack Rs

Mack F — Not Entered High risk

May 8, 1980 Model years: 1970, 1971, 1972, 1973, 1974, 1975, 1976

RADIUS OF THE TAPER AT THE STEERING KNUCKLE END. THIS CONDITION MAY CAUSE STEERING ARM FAILURE WITHOUT PRIOR WARNING.

Also affects: Mack Fap, Mack Fc, Mack Fcs, Mack R, Mack Fca

Mack F — Not Entered High risk

May 8, 1980 Model years: 1979, 1980

VEHICLES MAY BE QEUIPPED WITH TRACTOR PARK VALVE CONTROL KNOBS MANUFACTURED BY POLYFLEX CONTROLS THAT MAY BREAK AT THE KNOB RETAINING PIN HOLE LOCATION. THIS CONDITION WOULD RENDER

Also affects: Mack Mc, Mack R, Mack U

Mack F — Not Entered High risk

Jul 12, 1979 Model years: 1978, 1979

VEHICLES EQUIPPED WITH MACK RA23 OR RA24 REAR AXLES MAY CONTAIN REAR SUSPENSION SPRING SEATS THAT COULD DEFORM ON SPRING DEFLECTION RESURING GEAR OUTPUT SHAFT SPLINES AND ULTIMATEL

Also affects: Mack Rs, Mack Rm, Mack Mb, Mack R, Mack Rl

Mack F — Not Entered High risk

Jun 4, 1979 Model years: 1977, 1978, 1979

TRUCKS EQUIPPED WITH MACK ENDT (B) 676, ETAZ (B) 673A AND ETAY (B) 673A ENGINES WITH AIRESEARCH TV6103 TURBO-CHARGERS. IN SOME INSTNACES OF TURBOCHARGER COMP[RESSOR WHEEL FAILURE T

Also affects: Mack Dm, Mack Dmm, Mack Md, Mack Mr, Mack R

Mack F — Not Entered High risk

May 4, 1979 Model years: 1974, 1975, 1976, 1977, 1978, 1979

ANTI-WHEEL LOCK VALVES SUPPLIED BY EATON CORPORATION MAY BE EXPOSED TO ACCUMULATED CONCENTRATIONS OF FLUID CONTAMINANTS IN THE AIR BRAKE SYSTEM THAT COULD CAUSE THE PISTON TO STICK

Also affects: Mack Dm, Mack Dmm, Mack Hmm, Mack Mb, Mack R

Mack F — Not Entered High risk

Jan 16, 1979 Model years: 1978

TRUCKS EQUIPPED WITH MACK SH34 OR SH38 BOGIE SUSPENSIONS. THE BEAM HANGER BRACKETS MADE BY SUPERIOR STEEL CASTINGS HAVE LOW MECHANICAL PROPERTIES AND EXCESSIVE SHRINKAGE. FAILURE O

Also affects: Mack Dmm, Mack Mb, Mack R, Mack Rd

Mack F — Not Entered High risk

Nov 3, 1978 Model years: 1977, 1978

TRUCKS EQUIPPED WITH BENDIX ANTI-WHEEL LOCK ELECTRONIC CONTROLLERS. A DIODE FAILURE WHTHIN THE ELECTRONIC CONTROLLER MAY BLOCK AIR PRESSURE TO THE BRAKE CHAMBERS RESULTING IN A NO-

Also affects: Mack Dm, Mack Dmm, Mack Mb, Mack R, Mack Rd

Mack F — Not Entered High risk

Oct 5, 1978 Model years: 1977, 1978

TRUCKS EQUIPPED WITH BOGIE (TANDEM REAR) AXLES THAT ARE EQUIPPED TRUCKS EQUIPPED WITH BOGIE (TANDEM REAR) AXLES THAT ARE EQUIPPED WITH A SINGLE ANTI-WHEEL LOCK CONTROLLER. WHEEL SE

Also affects: Mack Dm, Mack Dmm, Mack Mb, Mack Mc, Mack Mr

Mack F — Not Entered High risk

Aug 21, 1978 Model years: 1971, 1972, 1973, 1974

VEHICLES E3QUIPPED WITH MACK FA534 SERIES FRONT STEERING AXLES AND INTEGRAL HYDRAULIC POWER STEERING. THE STEERING KNUCKLES MAY HAVE A REDUCED FATIGUE LIFE AS A RESULT OF IMPROPER

Also affects: Mack Mb, Mack R, Mack U

Mack F — Not Entered High risk

Apr 3, 1978 Model years: 1974, 1975, 1976

THE EATON MODEL 21 ANTI-WHEEL LOCK CONTROLLER MAY MALFUNCTION AND PREVENT APPLICATION OF THE BRAKE ON THE AXLE CONTROLLED BY THE DEFECTIVE CONTROLLER. A "NO BRAKE" SITUATION MAY DE

Also affects: Mack Dmm, Mack R, Mack Rd, Mack Rl, Mack Wl

Mack F — Not Entered High risk

Dec 2, 1977 Model years: 1977

VEHICLES EQUIPPED WITH SWTL56, SW56 OR SW57 SERIES BOGIES (TANDEM AXLES). THE WELDS SECURING THE REAR AXLE SPRING INSULATOR BRACKET TO THE AXLE HOUSING ARE IMPROPERLY POSITIONED AN

Also affects: Mack Rs, Mack Wl, Mack Ws, Mack Rl, Mack R

Mack F — Not Entered High risk

Oct 27, 1977 Model years: 1977

TRUCKS EQUIPPED WITH CERTAIN SEAT BELT ASSEMBLIES MANUFACTURED BY INDIANA MILLS AND MANUFACTURING INC. THE SEAT BELT ASSEMBLIES, STYLE NO. IMM-385 AND B1000R-P, PERFORMED MARGINALL

Also affects: Mack Cf, Mack Dm, Mack Dmm, Mack Hmm, Mack R

Mack F — Not Entered High risk

Oct 27, 1977 Model years: 1972, 1973, 1974, 1975, 1976, 1977

TRUCKS EQUIPPED WITH MACK 6 CYLINDER ENGINES AND FLEXIBLE BLADE ENGINE COOLING FANS. THE FLEXIBLE BLADE FANS MAY DEVELOP FATIGUE CRACKS IN THE LAMINATED STIFFENER. CONTINUED ENGINE

Also affects: Mack Rl, Mack R, Mack Rm, Mack Hmm, Mack Dmm

Mack F — Not Entered High risk

Jul 11, 1977 Model years: 1977

TRUCKS EQUIPPED WITH DAYTON-WALTHER FRONT WHEELS AND MACK FA617C OR FAW617 FRONT AXLES. THE DAYTON-WALTHER FRONT WHEEL STUDS WERE NOT PROPERLY HEAT TREATED AND ARE SUBJECT TO CRACK

Also affects: Mack Cf, Mack Dm, Mack Mb, Mack R, Mack Rd

Mack F — Not Entered High risk

Dec 1, 1975 Model years: 1974, 1975

THE PRIMARY AND SECONDARY AIR SUPPLY LINES MAY HAVE BEEN CONNECTED IN REVERSE AT THE DUAL BRAKE TREADLE VALVE.

Also affects: Mack Dm, Mack Dmm, Mack Mb, Mack R, Mack Rd

Mack F — Not Entered High risk

Dec 1, 1975 Model years: 1974, 1975

AN ERROR MAY HAVE OCCURRED IN THE INSTALLATION OF THE AIR SUPPLY PIPING TO THE TRACTOR TRAILER PARK VALVE MANIFOLD.

Mack F — Not Entered High risk

Jun 30, 1975 Model years: 1967, 1968, 1969, 1970, 1971, 1972, 1973

VEHICLES EQUIPPED WITH SW56, 78, 82 AND 86 SERIES REAR AXLES. THE REAR AXLE TRUNNION BRACKET MAY DEVELOP CRACKS. IF THE CRACKS ARE NOT DETECTED, CONTINUED OPERATION COULD ULTIMATEL

Also affects: Mack Dm, Mack Mb, Mack R, Mack U

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