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RE: Drill Stem


Ken Osment

The Flowserve fall arrest system utilizes two modified Block Stop (Suppliers name) fall arrestors which work quite well when new. Care must be taken to ensure the linkages are inspected and adjusted to grip their respective cables at the same reaction height as they do wear or premature failure will occur. ( We have seen a couple malfunction due to this issue) The Ruhrpumpen mechanism is a far more robust system as mentioned, and is my overall preference, but both work as designed if they are properly maintained. We did have to make some modifications so that the Flowserve system components so that they could adequately be adjusted and maintained.

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