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We believe that gas back head type hammers are more powerful than accumulator types. RAW hammers have a gas back head.
We used to. Now we only go away to train customers on RAW hammer servicing. We supply knowledge, parts and manuals instead.
Please contact us on 0121 445 6526. The cost could differ depending on whether you brought it to us, if there’s damage to the gas valve ect.
You are correct it is the hammer at fault. The 125 requires very little return line pressure, Ie a 1′ return hose all the way back to tank.
The Volvo has small hammer lines, possibly 1/2 inch in places. Basically the oil cannot get away from the hammer quick enough so the working pressure has greatly increased.
The hammer then over heats and slows, sometimes to a complete stop. The hammer and machine are not compatible unless you do a 1′ return all the way into the tank. I have an out for these hammers should you wish to part X your hammer.
