Ⅱ号喷油泵匹配的是一种机械离心全速式调速器。本文介绍Ⅱ号喷油泵调速器总成主要的调试项目、顺序及方法。 1.预行程或供油起始角的检查相对于喷油泵凸轮轴的供油提前角影响着供油质量和规律,调试时应加以检查和调整,一般以测量柱塞预行程的方法来加以检查。所谓柱塞预行程是指柱塞由下止点上升到关闭进油孔时的这段行程,可用预行程专用量 Ⅱ No. matching pump is a mechanical centrifugal full speed governor. This article describes the No. Ⅱ fuel pump governor assembly of the main commissioning projects, procedures and methods. 1. Pre-stroke or fuel supply starting angle of the check relative to the injection pump camshaft advance angle affects the fuel supply quality and law, debugging should be checked and adjusted, the general method to measure the plunger pre-stroke to be an examination. The so-called plunger pre-stroke refers to the plunger from the bottom dead center rise to close the inlet hole when the stroke can be used for the pre-stroke