1 Before installation, the guide wheel and bearings, housings, plugs and caps should be carefully cleaned in clean kerosene. 2 While keeping the installation tools and hands clean, apply low temperature grease to the bearings and housing. 3 and then the bearing and guide wheel were pressed into the drilling machine (under the clipper tool placed under the newspaper pad guide wheel), with appropriate torque to tighten the guide wheel at both ends of the mother, tighten the congestion. 4 Installation: wire rack mounting hole clean (for light sandpaper light sand light), the guide wheel and the guide wheel mounted vertically into the pressure (Note: You can not use too much force padded with wood), to ensure that Both ends of the cap can freely adjust the guide wheel position (this point is very important, it shows the working state of the bearing), and then top tight top wire (not vigorously to limit the bearing seat channeling appropriate). 5 key note: In the whole process, there is no need to hit the smashing to install the site, all do not hit can not be installed on the phenomenon is wrong. To keep the smooth operation of the guide wheel, there is always space for grease filled bearings, pay attention to the insulation of the guide wheel sleeve clean and effective, to ensure the flexible operation of the guide wheel, there should be no jam and periodic elastic. These are the prerequisites for smooth running of the guide wheel and bearing over a long period of time.