Series 70 and 150 Overshots - Rubicon Oilfield International
1. Using a vise, clamp the bowl be-tween the threaded ends. Remove the top sub by breaking loose the threaded connections between the top sub and bowl. CAUTION: Excessive force can distort or crack the bowl. Use only enough gripping action in the vise to break the connections. Avoid mak-ing heavy tool marks on the bowl. 2.
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