A small method for making the spring lower seat groove n smoothly fit over the plunger tail rod

The cylinder tappet to be installed is placed in the seat hole in the cylinder sequence, and the camshaft is rotated to make the tappet at the bottom dead center. The oil quantity control sleeve, the spring upper seat and the plunger spring are sleeved and placed on the tappet, and the pump body part in contact with the ring gear is used as a fulcrum, and the first and second backward pump body springs are used as a fulcrum. Press the shoulder between the shoulders, press the oil control sleeve and put the ring gear on the side, then insert the oil control sleeve into the ring gear to mark and tighten the ring gear fastening screw.

For the ring gear together with the oil quantity control sleeve, it is easy to remove at the same time. The ring gear together with the oil quantity control sleeve can be assembled at the same time: the ring gear is placed together with the oil quantity control sleeve, the bow single spring upper seat and the plunger spring. On the tappet, the part of the pump body that is in contact with the ring gear is used as a fulcrum, and the first and second backwards are pressed into the ears of the spring seat shoulder of the pump body. Marking the good toothed rod and centering the ring gear, loading the plunger sleeve together with the plunger, so that the plunger sleeve positioning groove is aligned with the pump body positioning pin, the plunger has the marked side outward and is aligned with the control sleeve gap, The oil discharge valve coupler, the sealing gasket, the oil outlet valve spring and the volume reducing body are installed, and the oil outlet valve with the 0-shaped rubber sealing ring is mounted and tightened with a torque of 49.0 to 58.8N.

One hand uses a word screw to screw up the plunger spring, and the other hand uses a pair of tweezers to push the spring lower seat and place the lower seat notch on the plunger tail rod. In order to make the spring lower seat slot n fit smoothly on the plunger tail rod, the plunger tail rod must first be placed at a suitable suspended height before the spring lower seat is pushed. This height has little room for change. The Shandong filter press is not like the A-type pump with the bolt-adjustable tappet. Just put the plunger tail rod on the adjusting bolt support surface.

In addition, the space for changing the spring seat between the plunger spring and the tappet is also small. This is the place where the plunger pump of the AD pump is slightly more difficult than the A pump, but if it can be carefully operated, the assembly is serious. Will be proficient several times. Each time a cylinder spring lower seat is installed, it is necessary to rotate the camshaft by hand, and repeatedly adjust the gear bar or the ring gear by hand. The gear bar should be moved flexibly, and there must be no blockage. Otherwise, the cause should be found and reassembled. .

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