the lifting appliance is hung below the traveling crane by the movable pulley group, the fixed pulley group and the rope.
吊具通过动滑轮组、定滑轮组和绳索悬挂在行车下方。
a fixed pulley is arranged at the center of the top end of a support (6);
定滑轮安装在支架(6)顶端中心处;
the fixed pulley is rotated by a cranking bar to wind the steel cable, a spare tire can be lifted, and the spare tire can be put down stably by rotating in reversal the cranking bar.
使用摇把转动定滑轮圈绕钢丝索,即可提升备胎,反转摇把即可平稳降下备胎。
solution: disconnect the power, reconnect, replace the fuse, replaced or fixed pulley belt.