那个弹簧,我自己装的。因为是新车库,所以我只有装的经验,没有拆的经验。我觉得,拆旧弹簧的时候,要小心,因为弹簧已经被上紧了。+ U- `1 [; U5 b7 h
% b: b) [9 f/ K: W
装弹簧的时候,我是按照按照说明书一步步做的。说明书里,要求安装弹簧的时候,用专门的工具。我没有去买,而是用两条10mm的钢筋,很好用。钢筋可以在 home depot 买到。
My husband was first wanting to try by himself; since it is very dangerous, we googled and found Robert garage door Edmonton and that guy did very good. Recommend to you.