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F690液压牛刨的油泵是老型号的双联叶片泵。该泵的体积大、效率低,而老式B690液压牛刨油箱原设计有缺点,它的容积小,再加上老型号油泵占去的体积又大,使油的容量更小了,致使油温升高。更主要的是老型号油泵现已不生产了。不利更换,必须改用新油泵,我们现采用YB100/50双联叶片泵。为了便于改装,还需加工一只法兰盘,如图1所示。法兰盘是用来联结新油泵和电机的;油泵和操纵箱的连接油管也需进行改制,如图2所示。改装后,新油泵的体积比原来油泵体积小1/2,这样,油容量增加,油温相应降低,另外,油泵备件也能买到。
The F690 hydraulic bulldozer pump is an older double-vane pump. The pump is bulky and inefficient, but the old B690 hydraulic planing tank has its own shortcomings: its small volume, combined with the large size of the older pump, made the oil less bulky, causing the oil temperature Rise. More important is the old model pump is not produced. Adverse replacement, we must use the new pump, we are now using YB100 / 50 double vane pump. In order to facilitate the conversion, but also the need to process a flange, as shown in Figure 1. Flange is used to connect the new pump and motor; pump and control box to connect the tubing also need to be modified, as shown in Figure 2. After modification, the size of the new pump than the original pump size of 1/2, so that the oil capacity increased, the corresponding reduction in oil temperature, the other, pump spare parts can also be bought.