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In Reply to: Case 590 Turbo hydraulic hammer recommendations? posted by jasonguryy on Tuesday, September 18, 2007:
With the extendahoe circuit in place that can be used to power a hammer,you need two suitable tee pieces,two hoses about 18" and two quick break couplings,the tee pieces go between the steel tubes for the extendahoe and the flexible hoses at the boom/dipper hinge,the hoses and Q/B couplings are brought to the outside of the boom where they are held in place with brackets,when the hammer is fitted its pipes connect to the Q/B couplings,the power feed for the hammer comes from the pipe that retracts the extendahoe,when the hammer is not on the extendahoe works normally,the hammer we most used that does not need a seperate return line is a Krupp 200 or a 250,the hammer that is very common here is the Montabert 125,that hammer needs an inch return direct to the tank as it will not work well if there is much back pressure,we also fitted Stanley hammers but they were not liked as parts were very dear and they had three accumulators,very good hammer but a SOB to repair,by the rule of thumb a hammer will work on your 590 with the extendahoe circuit if both hoses on the hammer are no bigger than 3/4".
Good luck
AJ