Maintenance and inspection of guide boots

1) The gap between the side of the boot liner and the guide rail of the car guide boot is 0.5 ~ 1mm. There is no gap between the boot lining and the top surface of the guide rail, and the adjusting range of the boot spring is not more than 5mm. The clearance between the boot lining and the top surface of the guide rail is 1 ~ 2mm. The gap between the boot lining and the top surface of the guide rail for heavy guide boots shall not be greater than 2.5mm. The clearance between the roller and the guide surface of the rolling guide boot is 1 ~ 2mm.

2) Run the cage and the counterweight at the same level, and check the guide boots on the top of the cage and counterweight. Swing the car or the heavy frame back and forth to both sides to check the size of the side gap and the wear of the boot lining, but also to check the hard and soft spring. If the top gap is too large, the boot lining can be removed and the top surface of the gasket can be adjusted. If the side gap is too large, if it is embedded boot lining, screw in the side boot lining bolt to adjust the side gap. Integral boot lining can be in boot lining side back with gasket adjustment, so that the gap * side is slightly larger, but because of structural reasons, the effect is not as good as embedded type, so the best method is to replace the new boot lining.

Check the fastening of guide boots and cage frame and heavy frame. Use spring washer to prevent nut loosening. 3) Serious wear and tear of boot lining, excessive clearance or skewed installation will cause "gnawing" phenomenon of car driving. The phenomenon of "gnawing road" can be judged by the following signs: there is a narrow and bright trace on the side of the guide rail, and the trace is burr when serious; Boot lining side into a trumpet mouth and burr; Car running, especially in the starting and flat floor deflection, torsion pendulum. The reasons for "gnawing road" are: rail distortion, skew or loose; The upper and lower guide boots are not aligned, and the clearance is not consistent with the guide rail; Cage frame deformation or boot seat bolt loose; Boot lining shape size is too small in the boot head shaking.