Domestic vine force spring balancer preferred brand, good quality big brand trusted! Spring balancers Caution: (a) When removing the balancer, you need to adjust to other work can be carried out when the worm counter-clockwise rotation, so that the coil spring is fully relaxed state. (B) once a month to deal with balancer security checks, mainly check the contents are: 1, loose fasteners. 2, the upper and lower hook or without bumps, cracks and defects. 3, the safety rope is reliable. 4, shell and round tower should be no cracks, no serious wear and tear. 5, the safety device is still working (three) long-term placement, to unloading save, pay attention to moisture, so as not to coil spring rust.