卷帘门装完，别只试“能开能关”。很多门用半年开始蹭轨、异响、底梁漏风，问题都出在验收时没盯轨道系统。

After installing the rolling shutter door, don't just try to "open and close it". Many doors have been rubbing against the track, making abnormal noises, and leaking air from the bottom beam since half a year ago, and the problem lies in not paying attention to the track system during acceptance.

先敲导轨。手指推导轨无晃动，锤击声“实”不“空”。混凝土墙用M8以上膨胀栓，间距不超600mm，顶底150mm内必有锚点；轻体墙没加钢过梁直接锁轨，后期必松。

First, tap on the guide rail. The finger deduction track does not shake, and the hammering sound is "real" rather than "empty". Expansion bolts of M8 or above shall be used for concrete walls, with a spacing of no more than 600mm, and anchor points shall be provided within 150mm of the top and bottom; The light body wall is directly locked to the rail without adding steel beams, and it will be loosened in the later stage.

再看垂直度。激光水平仪打线，导轨垂直偏差≤2mm/m，两轨平行度互差≤2mm。肉眼看着直没用，帘片跑几趟就暴露：一边紧一边松，边缘起毛刺。

Check the verticality again. The laser level is used for line marking, with a vertical deviation of the guide rail of ≤ 2mm/m and a parallelism difference of ≤ 2mm between the two rails. It looks useless to the naked eye, as the curtain is exposed after running a few times: one side is tight and the other is loose, and the edges are fuzzy and prickly.

查帘片入轨。点动升降10次，听有没有金属刮擦声。跑偏不是帘片质量问题，是轨道微角度错了。可松顶部调节螺栓，微移0.5–1mm再紧固，别硬掰帘布。

Check if the curtain is inserted into the track. Tap up and down 10 times and listen for any metal scraping sound. Deviation is not a quality issue with the curtain, it is a slight angle error in the track. Loosen the top adjustment bolt, move 0.5-1mm slightly before tightening, do not forcefully break the curtain.

底封条用“抽纸法”。A4纸夹在门底，稍用力能抽出、但抽完有压痕，说明密封刚好；太松漏灰，太紧电机长期过载。

The bottom seal is made using the "paper drawing method". A4 paper clip at the bottom of the door, can be pulled out with a little force, but there is an indentation after pulling, indicating that the seal is just right; Too loose to leak dust, too tight to overload the motor for a long time.

电机限位建议低速标定。先点动确认方向，上限位留收卷余量，下限位底梁轻压地面回弹2–5mm。限位漂移是“门卡半空”的主因，装完不标，三个月后遥控就乱。

The motor limit must be calibrated at low speed. First, click to confirm the direction. Leave enough space for rewinding at the upper limit, and lightly press the bottom beam at the lower limit to rebound by 2-5mm. Limit drift is the main cause of "door card in mid air", and if it is not properly labeled after installation, the remote control will become chaotic after three months.

安全件逐项试：遮光幕急停回弹、碰安全边停止、拍急停切断控制回路。快速门还看雷达误触发——感应区避开叉车掉头点，不然一天开关几百次，电机提前退休。

Test safety components item by item: emergency stop rebound of shading screen, stop when touching the safety edge, and cut off the control circuit for emergency stop. The fast door also depends on the radar triggering error - avoid the forklift turning point in the sensing area, otherwise it will be turned on and off hundreds of times a day, and the motor will retire early.

防火卷帘单独加一条：烟感报警两步降（先到1.8m，温感再落到底），信号进消防主机，不是“能放下”就算数。

Add a separate fire-resistant roller shutter: the smoke detector alarm drops in two steps (first to 1.8m, then the temperature sensor drops to the bottom), and the signal enters the fire control host. It is not counted as "can be put down".

留检修口。卷机一侧留500×500mm可拆卸孔，后期换链条、调离合不用拆吊顶。

Leave a maintenance port. Leave a 500 × 500mm detachable hole on one side of the rolling machine, so there is no need to remove the ceiling for later chain replacement and clutch adjustment.

卷帘门寿命=30%门体+70%轨道与调试。验收单上这七项打勾，比看“门板多厚”实在。

Rolling shutter door lifespan=30% door body+70% track and debugging. Checking these seven items on the acceptance form is more realistic than checking 'how thick the door panel is'.