1977 FREIGHTLINER FREIGHTLINER Recalls (5)

Campaign:
77V121000 on 10/11/1979
Component:
Wheels
Affected:
163
Defect:
On the involved vehicles, cracks may develop at the base of the inner wheel bearing cup and propagate circumferentially around the barrel of the hub. a fracture between the inner hub end and the flange portion of the hub could eventually develop. failure could occur causing hub separation. continued operation after hub separation has occurred could result in lock-up of brake assembly, excessive heat generation due to brake lining to drum contact, and progressive damage to the hub, causing the separated hub with the wheel and tire to disengage from the truck.
Correction:
Dealer will replace the aluminum hubs with steel hub, cup and stud assemblies, without charge to owner.
Notes:
Vehicle description: trucks equipped with ff-931 front steering axles and motorwheel corporation aluminum hubs.system: suspension; wheels.consequences of defect: either hub failure or complete separation of the wheelassembly could cause loss of vehicle control and an accident.note: driver may hear a sound the instant the hub separates, along withthumping and wheel wobble.

Campaign:
78V146000 on 10/11/1979
Component:
Service brakes, air:supply:check valve
Manufactured:
06/30/1977 - 02/28/1978
Affected:
65
Defect:
The check valve, located on the inlet side of the primary and secondary air tanks may crack in the female fitting area and cause a slow loss of air. a leaking valve will reduce air pressure and partial or complete loss of brakes on those axles that depend upon that part of the system could occur.
Correction:
The dealer will inspect and, if necessary, install new air check valves.
Notes:
Vehicle description: heavy trucks.system: service brakes; air check valve.consequences of defect: partial or complete loss of braking capability couldresult in loss of vehicle control and an accident. under some conditions, theemergency brakes may automatically activate, possibly allowing the driversufficient time to select a safe place to pull off the highway.note: each check valve should immediately be inspected for a leak. if one isfound, the dealer should be contacted immediately.

Campaign:
77V155000 on 10/11/1979
Component:
Steering:wheel and handle bar
Affected:
15,000
Defect:
On the involved vehicles, the pinch bolt that clamps the steering shaft yoke to the input shaft on the gearing box may be loose. the splined surfaces on the yoke and shaft could wear as a result. continued usage could cause severe wear and eventual slippage of the joint.
Correction:
Dealer will replace the existing pinch bolt and nut with an improved type. to improve access to the bolt, dealer will eliminate the rubber boot and replace the metal dirt guard with a rubber protective cover.
Notes:
Vehicle description: heavy trucks.system: steering; steering shaft yoke to input shaft bolt.consequenes of defect: joint slippage can cause loss of steering controlwithout warning and an accident could result.note: looseness will be indicated by free play at the steering wheel.

Campaign:
77V231000 on 10/11/1979
Component:
Steering:linkages
Affected:
670
Defect:
The involved vehicles contain defective ball studs that were improperly heat-treated and thus contain cracks. these studs, located in the pitman arm, could eventually fracture in the threaded portion under the retaining nut.
Correction:
The dealer will replace the defective pitman arm ball stud with a new one, without charge.
Notes:
Vehicle description: heavy trucks.system: steering; ball stud.consequences of defect: loss of steering control could result, causing loss ofvehicle control and an accident.

Campaign:
80V031000 on 03/30/1980
Component:
Trailer hitches
Manufactured:
05/31/1979 - 01/31/1980
Affected:
1,500
Defect:
Cracks may develop in the truck"s rear towing crossmember which supports the trailer hitch and to which the safety cables are attached. should these cracks progress to the point of complete separation, the crossmember and the trailer could become detached from the truck.
Correction:
Dealer will replace the "a" frames and any other damaged parts at no charge to owner.
Notes:
Vehicle description: trucks equipped with a rear towing crossmember and "a"frame assembly.system: structure; rear towing crossmember.consequences of defect: trailer detachment can occur without prior warning,resulting in a vehicle accident.

1977 FREIGHTLINER FREIGHTLINER TSB

Bulletin:
954-12
Component:
073200 fuel system, gasoline:fuel injection system:injectors
Summary:
954-12 installation of the fuel injector.pdf

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