很难翻译的句子，大侠来帮忙吧? 1.with the rataing element assembled in the volute case and the volute to barrel gasket in place on the volute,push the assembly into the barrel as far as will go. 蜗壳 内 转动部件及蜗壳与缸体之间的垫片 安装时将配件尽可能推入缸体。 2.slip the volute locating ring cover neck (or cover adapter).make sure that the bevel in the bore of the ring is over the corner radius of the cover. 滑动 蜗壳定位环 封盖柄 。确保定位环孔斜面在封盖角半径上。 3.assembly the outer barrel cover onto the barrel using only 4 nuts at 90 degree spacing.note that as the nuts are tightened the cover will bear against the barrel volute locating ring and the volute will be pushed firmly against the barrel gasket fit.the volute to barrel gasket will be seated and compressed slightly.if the volute ring is new (that is ,not previously alerted ) its thickness will be 12.7 mm and the gap between the barrel,when the volute has been seated properly,will be approximately 3.2 mm 安装外缸体的封盖仅需互成90度的四颗螺母。注意螺母应上紧以压住蜗壳定位环且蜗壳会慢慢推入压住缸体垫片。蜗壳与缸体间垫片应适当放置好并轻轻压住。如果蜗壳定位环是新的（也即此前未用过——alert这个词怀疑弄错了），那么它的厚度会有12.7mm，当蜗壳完全安装后，缸体之间的间隙大约为3.2mm。 4.when it has been determined that the volute to barrel gasket has been seated properly,the gap between the cover and barrel should be carefully measured with feeler gauges. add 0.8 mm to the figure obtained . this is the amount of metal to be removed from the back of the locating ring. 当决定要固定蜗壳与缸体垫片时，封盖和外缸体之间的间隙应该用千分尺仔细地测量。在测量数据上加0.8mm，这是需要从定位环背部除去的金属量。 5. remove the barrel cover. remove the locating ring from the cover.machine the determined amount off the back of the ring. 取出缸体封盖。从封盖取出定位环，将定位环加工到 预定 的尺寸。 6. replace the alterd locating ring and proceed with the final assebling. the pumps as recieved from the factory will have the locating ring machined to the required thickness. 更换已处理的定位环，并进行最终的安装处理。 从工厂接收的泵将有已加工到要求尺寸的定位环。查看更多
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