Spring break is the most common fault in the curtain door. A few days ago, Sheng Xun received two phone calls for the failure of rolling shutters due to spring breakage.
I follow the master to the scene maintenance found that using brute force to open doors and other improper operation is the main reason for rolling door spring fracture.
The curtain door can't move
The shop door is not closed overnight
"Master, you are finally here. Help me to see the door quickly. The shop door is closed all night." When she saw Zhang master getting off, merchants Wang immediately met him. Mrs. Wang has three shops in the department store, and the manual door is installed at the door of the shop. This time the fault is on the left side.
The day before yesterday, when Ms. Wang was preparing to open the door, she found that the rolling shutter door could not move. Considering that business could not be delayed, the couple jointly pushed the door 20 centimeters high and let his son get through the cracks before they both pushed the door open.
But the curtain door does not go back. In the evening, Ms. Wang could only go home without closing the door. Wait until the next day, she immediately contacted Master Sheng Xun.
The door has four rollers. Mr. Zhang said the springs on the leftmost rollers have popped out and a spring with a fixed circular hole at both ends has broken. After reinstalling a new spring, the shutter door was repaired.
Open the door with brute force
Will cause damage to the spring
Master Zhang skillfully repaired the curtain door, Ms. Wang's husband wanted to try it out. He saw only one hand holding an iron hook, the other hand "brush" to push up, then pull down again.
"Don't push it like that." Master Zhang hurried up to stop it. He said that among the parts of the manual rolling door, the most easy to damage is the spring that is wound on the roller. Too long and violent push and pull the curtain door will damage the spring. The author observes that a crack has appeared in the middle of the negative of the manual rolling shutter door, and the crack has sunk three centimeters upward.
"Violent opening of the door, not only will break the spring, but also may cause damage to the limit shield and other faults, and even make the rolling shaft of the shutter door fall off." Master Zhang said that the thickness of the roller of different manufacturers on the market is different, frequent violent opening the door, and after the violent collision between the curtain and the roller, the thinner roller will be easily broken, and the roller will be broken.
A sign of a spring failure
Find problems to be repaired in time
After mending the rolling shutter door of Ms. Wang's shop, Mr. Zhang turned to the flower and bird area and found Ms. Lu's shop.
"The shutter door always slipped in the previous period. It couldn't be opened two or three days ago. " Ms. Lu said the broken doors were pushed open by the shopkeeper next door for two days.
The spring is too loose or fractured to stop in the air when the door is pushed. Master Zhang climbed up the ladder, removed the buckle plate and found the broken spring. After replacing the matching spring, the rolling shutter door returns to normal operation.
"The rolling shutter door has the sign before it breaks down, discovers the question must seek the specialized teacher to repair promptly." Master Zhang, if the curtain door can not be accurately stretched or suspended, it is likely to be out of order, the professional master should be requested to adjust or replace the spring in time to avoid accidental slipping of the curtain door to cause injury.
In addition, when the push-pull shutter door is not smooth, butter should be added to lubricate the parts in time to prolong the service life.