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    Winch leaking Hydraulic oil ?

    Clark 720 OS 20 Ton RT- Roughly 1975 vintage. Winch sprung a hydraulic oil leak yesterday, just before last lift of the day. Leaking from what appears to be some kind of pressure relief. At first, I thought it was a grease nipple (7/16" hex) but when I put my fingers on it, oil poured out more...
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    De-rate / re-rating a crane

    Just curious here; From the "advice" thread: Under what kind of circumstances would a crane be de-rated to a lower rating, with the possibility to be re-rated to the original, higher rating ?
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    Crane pads

    I see where "crane pads" have come up for discussion a couple times here. Thought I'd post up photos of ones that I like -- I made these myself, for my 20 Tonne Clark R/T. I've had a couple of scary experiences with inadequate pads and / or soft footing, so I'm more than a little cautious about...
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    Annual mechanical inspection form ?

    I'm in BC, Canada. Besides my daily operator's inspection, an annual structural inspection (magnaflux every accessable weld), and operator Certification, "Worksafe BC" is now requiring an annual mechanical inspection "by a qualified person". In discussing this with my Worksafe BC rep., I told...
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    R/T Crane - Boom cradle ?

    Clark 720 OS, 20 Tonne R/T Any of you guys using a boom cradle when you transport a R/T crane on a low bed ? A few years ago I had an incident where I transported my R/T crane about 75 miles, 25 of which was over very rough logging road. I must add that the driver was rather "aggressive" over...
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    Wire rope movement indicator ??

    Hi there, just found your forum ! I know my terminology is probably wrong -- I never did know the proper term for this item. I own / operate an older Clark 720 OS R/T crane - Roughly late 1970's model. Everything is basic / manual on this thing - no computers. For precise raising / lowering...
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