Please I have this machine akerman H14B excavator connected with pilling hammer but for some reason I notice that the footer cannot lift together with hammer we check the p1 pump and p2 and replace the piston and the barrel with pressure plate and now is generating a very high pressure that the valve for the hammer is pulling off. Can anyone help me solve this problem as I do not have the repair manual to locate the relief valve. And if anyone with manual as try to search the web to no avail. Thanks.
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