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Recalls for
1988 Mack U Series
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4 recalls found.
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DEFECT #1 - STEERING:WHEEL AND HANDLE BAR
Posted on: 1989-06-09
Description
Steering wheel retaining nuts may have been improperly installed and/or torqued.
Consequence
Corrective Action
Renew and retorque steering wheel retaining nuts.
Notes
System: steering wheel retaining nuts.vehicle description: heavy duty trucks. Consequence of defect: this could cause steering wheel disengagement from the steering column with loss of steering control which could result in anaccident. DEFECT #2 - STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS
Posted on: 1989-03-16
Description
An incorrect high pressure power steering hose may have been installed.
Consequence
Under certain conditions, hose could fail resulting inloss of power steering assist and possibly an accident.
Corrective Action
Replace incorrect power steering hoses.
Notes
System: power steering hose.vehicle description: heavy duty trucks equipped with stratoflex high pressurepower steering hose. DEFECT #3 - STEERING:LINKAGES
Posted on: 1988-08-04
Description
Some of the nuts/bolts used to fasten the steering pitman arm may loosen.
Consequence
This would allow the pitman arm to come off the steeringgear sector shaft and result in immediate loss of steering control and a vehiclecrash could occur.
Corrective Action
Retorque nuts/bolts where necessary.
Notes
System: steering pitman arm.vehicle description: heavy duty trucks. DEFECT #4 - POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING
Posted on: 1988-05-26
Description
Clamp plates used between the drive shaft and carrier yokes may crack and could break due to improper heat treatment.
Consequence
If clamp plate breaks, yoke would fly off at detachedpoint and could injury anyone struck by flying fragments. Also, the detachedinner shaft could interfere with the brake system air supply hoses and tractortires, which could result in loss of truck control and an accident.
Corrective Action
Install new clamping plates and capscrews in all locations as needed.
Notes
System: drive shaft yoke clamp plates.vehicle description: heavy duty trucks.