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Manual roll up door are widely used in street shops, warehouses, garages, processing plants and other places. The product's service life and safety depend not only on the quality of the profiles themselves, but also on the installation process and daily maintenance. Many problems such as door body failure, falling and jamming, and lock failure mostly result from improper installation and long-term neglect of maintenance. Industry technicians suggest that strictly controlling the installation process and implementing regular maintenance can effectively avoid safety hazards and fully utilize the anti-theft and protective functions of manual roll up door.
During the installation process, manual roll up door are mechanical structure products. The torsion spring balance system, roller, guide rail, curtain sheet, and lock are the five core components, and high installation accuracy is required.
Key points of basic installation: The door opening size must be accurately measured in advance. The roller bracket must be firmly fixed to the wall or steel structure crossbeam. It is prohibited to fix it on lightweight partition walls to prevent insufficient load and falling; The adjustment of the torsion force of the torsion spring is the most important part of manual door installation. If the torsion force is too large, it will be difficult to operate the door, and if the torsion force is insufficient, the door body will automatically fall. The installation personnel need to precisely adjust the spring tension according to the weight of the door body to ensure that the door body can suspend at any height. The guide rail must be installed vertically and parallelly, with reasonable . To avoid the curtain sheet from getting stuck or derailing； The position of the lock should be aligned， and all screws should be tightened. After installation， repeated pulling tests should be conducted to check if the lifting is smooth， if there are abnormal sounds， and if the door body will automatically descend. At the same time， the anti-fall device should be debugged to ensure that the protection mechanism works normally before delivery for use. It is not recommended for non-professionals to install it themselves. Incorrect installation can easily lead to serious safety risks such as broken springs and falling door bodies.
After being put into use， regular and periodic maintenance can significantly reduce the probability of faults and reduce maintenance costs.
Simple daily maintenance can be completed by the users： Regularly clean the dust， sand， and debris inside the guide rail to prevent foreign objects from causing the curtain sheet to get stuck； The moving parts of the track and the roller， every 3-6 months， apply special lubricating grease. Do not use edible oil to avoid accelerated wear due to accumulated dust and blockage； Check if the curtain sheet has deformed or been knocked， deformed curtain sheets should be corrected or replaced in time to avoid other components getting stuck； Check the lock core， and do regular rust prevention treatment.
Key projects that require professional maintenance： Regularly check the fatigue and aging of the torsion spring. The torsion spring is the most worn-out component of the manual roller shutter door. Long-term repeated opening and closing will cause metal fatigue， resulting in abnormal sounds， door body falling， and increased weight when pulling. It is necessary to timely inspect and replace the spring if there is any abnormality； Check if the anti-fall and anti-derailing accessories are intact. Once the protection parts are damaged， the door body loses protection， and the spring will directly fall； Check if the bracket and expansion screws are loose. If the wall cracks or the screws are loose， they should be reinforced in time.
At the same time， safety operation tips are given： Do not pull or drag the manual roller shutter door forcefully. Do not stand under the door when pulling or dragging； Do not hang heavy objects on the door body； When encountering jamming or blocking， do not forcefully pull， immediately stop using， and check the fault. Forceful operation will cause the spring to break and the curtain sheet to tear； When using in rainy and snowy humid environments， do rust prevention treatment， as humidity will accelerate the rusting and aging of the spring and metal accessories.
Maintenance experts remind that many merchants have the misconception of "using but not maintaining". Waiting to repair when a fault occurs not only increases the maintenance cost but also easily leads to safety accidents. When purchasing products， in addition to paying attention to the thickness of the curtain sheet， the configuration of anti-fall and other safety accessories should also be confirmed； Choose a regular construction team for installation； Establish a regular inspection habit， and replace the old door bodies in time when they reach the service life to ensure the safety of personnel and property.
