1985 MACK MH Recalls (5)
- Campaign:
- 85V051000 on 05/12/1985
- Component:
- Structure:body:bumpers
- Manufactured:
- 03/31/1982 - 03/31/1985
- Affected:
- 7,500
- Defect:
- The flip out step clevis on the bumper may fail and break under the weight of the person standing on the step to service the front area of the vehicle. consequence of defect: this sudden break will cause the person standing on the step to fall, without warning, and could result in injuries.
- Correction:
- Remove the step clevis and replace with a new improved clevis.
- Notes:
- Vehicle description: heavy duty ultraliner trucks. system: bumper flip out step clevis.
- Campaign:
- 85V057000 on 05/13/1985
- Component:
- Steering:linkages:link:drag:connection
- Manufactured:
- 07/31/1984 - 02/28/1985
- Affected:
- 52
- Defect:
- The drag links may have been installed incorrectly allowing drag link clamp bolt to axle beam interference. consequence of defect: during a turning maneuver, increased steering effort or complete lockup of steering could occur without warning. this could result in loss of truck control and a crash.
- Correction:
- Assure that drag links are installed to correct interference condition.
- Notes:
- Vehicle description: heavy duty trucks with dual steering systems. system: steering drag links.
- Campaign:
- 85V113000 on 09/23/1985
- Component:
- Service brakes, air
- Manufactured:
- 12/31/1981 - 11/30/1984
- Affected:
- 5,020
- Defect:
- The dual double check valve may not release the proper air volume to the brake system, causing a slight timing delay between the tractor and the trailer brake system. consequences of defect: if the brakes are suddenly applied, the trailer could jackknife without warning to the operator, which could result in a vehicle crash.
- Correction:
- Install two new sleeves in the dual double check valve which will increase air flow.
- Notes:
- Vehicle description: heavy duty tractor trailer combinations. system: brakes, tractor to trailer.
- Campaign:
- 86V008000 on 01/21/1986
- Component:
- Structure
- Manufactured:
- 03/31/1982 - 02/28/1986
- Affected:
- 7,000
- Defect:
- Left or right cab step may crack in its welded area due to flexing of the step during entering and exiting. consequence of defect: as the cracks extend, the tubular step could partially collapse and break without warning to the user, and could result in personal injuries.
- Correction:
- Install a reinforcement brace if no cracks are found. in addition, replace step if cracks are present.
- Notes:
- System: cab step. vehicle description: heavy duty trucks with sleeper cab.
- Campaign:
- 88V147000 on 09/18/1988
- Component:
- Seat belts
- Manufactured:
- 12/31/1981 - 06/30/1988
- Affected:
- 11,000
- Defect:
- Seat tether belts may not have been adjusted during assembly.
- Consequence:
- During an impact, driver and/or rider can move forwardand possibly strike the windshield, even when wearing a seat belt.
- Correction:
- Adjust seat tether belt if necessary.
- Notes:
- System: seat tether belt.vehicle description: heavy duty trucks with air suspension seats.
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