allow the tie rod nut 86 to be inserted at a 90 degree angle and rotated to the correct alignment so that its bottom engages in the slot 84 this allows the tie rod nut 86 to be sized to fit into the opening of the nut pocket 82 during assembly but to engage in the slot 84 when the inward counterforce is needed similar to fig7 a horizontal outward force 66 is counteracted by an inward force 92 provided at an edge of the slot 84 against the notch 90 which as above acts to stabilize the tie rod nut 86 in the nut pocket 82 and limit bending of the tie rod 44 as described above the mechanisms to provide an additional counterforce 69 such as a reduced tolerance between the back of the nut 86 and the nut pocket 82 with or without a bolt 74 or a disk 73 may be provided fig1 is a flow chart of a method 200 of operating a hydraulic hammer 30 or more particularly of assembling and using the hydraulic hammer 30 at a block 202 a front head 46 may be provided the front head 46 having a nut pocket 60 the nut pocket 60 may have a side opening used to insert a tie rod nut 50 or 86 a top of the nut pocket 60 may be coupled that is open to a tie rod bore 38 at the top and a bottom.