The throw on that lift spool is very short. As the length of the handle is so long, providing way too much more leverage, operators have a tendency to over do the throw of the handle and overload the clamps or pin whichever the case may be.
Because of that long handle length, it's hard to "feel" when the spool is at either end on the short travel (throw).
Result, broken pins and in the case of the later models in that series that use the clamp, spun clamps on the horizontal actuating shaft due too much muscle on the end of that long handle.
There is a reason most hydraulic spool handle are so short.
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