NHTSA recall 89E014000 · Equipment
Unknown or other
The defect
Clamping ring may be undersized and the clamp nut may not fully engage the threads of the clamp bolt.
The risk
If the nut does not fully engage the bolt threads, thethread could be stripped with the result that the manhole cover would not besecurely attached to the collar, fall off, and become a road hazard.
The remedy
Inspect all clamping rings and if defective replace. all rings not installed will be retrieved by the manufacturer.