1987 MACK MR SERIES Recalls (3)

Campaign:
87V179000 on 12/03/1987
Component:
Steering:linkages
Manufactured:
06/30/1987 - 07/31/1987
Affected:
323
Defect:
Cross steering levers may be improperly heat treated and subject to fail during normal operation.
Consequence:
Such failure could cause loss of truck control withoutprior warning and result in a crash.
Correction:
Install new, properly heat treated steering lever.
Notes:
System: cross steering levervehicle description: heavy duty trucks with mack faw 616 or 617 series frontaxle.

Campaign:
88V153000 on 10/10/1988
Component:
Wheels
Manufactured:
11/30/1986 - 08/31/1987
Affected:
19
Defect:
Fasteners that hold the rear wheel to the hub and drum assembly may be improperly torqued.
Consequence:
An undertorqued fastener will loosen up and can result inwheel separation, loss of control, and an accident.
Correction:
Properly torque rear wheel space fasteners.
Notes:
System: rear wheel spacer fasteners.vehicle description: heavy duty trucks.

Campaign:
88V154000 on 10/10/1988
Component:
Suspension:multiple axle
Manufactured:
12/31/1986 - 03/31/1987
Affected:
129
Defect:
The undersized weld on the rear suspension bracketry attachment can cause bracket failure.
Consequence:
Bracket failure can allow the spring assembly to bereleased onto the roadway, possibly resulting in loss of control and anaccident.
Correction:
Replace any housings that have single pass (undersized) welds on the bracketry attachment.
Notes:
System: rear axle housing.vehicle description: heavy duty trucks.

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