5 X+ W: Y) a Z$ P9 U% x2 s8 Y* S+ r建议松、紧弹簧的时候,找一个很结实稳固的平台,不建议站在梯子上,到时候用力的时候会感觉不稳当。7 r8 D+ u* L9 u. K0 k/ Z, m
5 G6 s# U4 R3 E, _ o+ P两个钢筋头上建议在完全插入的深度位置用彩色胶带做一个标记,每次确保钢筋插入到位。% X/ N$ [3 n" B8 m; s0 u2 y3 j
7 e; g2 t6 g* W! @0 N
应该有一个帮手在旁边,主要是在你用力的时候,及时给你拿拿工具。并注意帮忙人避开弹簧扳手回转的平面范围内。 2 r. t( l6 f- }7 l. K $ p x2 E. N% Q! S# v严格按操作过程,特别是在紧弹簧时,门用卡钳锁紧的步骤,一定要可靠,不然弹簧力量一旦大于门的重量,门会突然上升,会冲到你上弹簧的钢筋,危险。
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.