How to adjust 2CY-12 / 2.5 gear pump gear: 2CY-12 / 2.5 gear pump gear after demolition of complex, the first move the claw coupling and fixed claw coupling teeth in the whole tooth And then engage the locating pin on the engagement lever assembly into the hole on the side of the locating plate 2CY-12 / 2.5 gear pump with the two retaining bolts of the locating plate loosened but not unscrewed. If the long slot on the positioning plate has reached the limit, the positioning pin still can not be inserted into the hole, then re-engage the lever assembly, change the position of its spline, after adjustment, tighten the two positioning plate fixing bolts and Engage the lever assembly fixing bolt. Finally, the lever assembly should be repeatedly pulled several times the lever assembly, the movable claw-shaped coupling should be free to slide from the hole to observe the view, the joint position of the two coupling teeth should be full-tooth meshing, the separation position should be full tooth off.