User Manual Q&AAnswer
Mar 17, 2025 - 09:35 AM
To adjust the closing speed of the Allgood 9133N Fully Concealed Door Closer, follow these steps:
1. Locate the control valves on the closer body. There are two valves: one for the closing speed adjustment and one for the latch speed adjustment.
2. To adjust the closing speed, use a screwdriver to turn the closing speed valve clockwise to increase the speed or counterclockwise to decrease the speed. Start with small adjustments and test the door closing speed after each adjustment.
3. Once you have achieved the desired closing speed, tighten the locking nut on the closing speed valve to secure the adjustment.
4. To adjust the latch speed, use a screwdriver to turn the latch speed valve clockwise to increase the speed or counterclockwise to decrease the speed. Again, make small adjustments and test the door closing and latching speed after each adjustment.
5. Once you have achieved the desired latch speed, tighten the locking nut on the latch speed valve to secure the adjustment.
Note: It is important to exercise caution when adjusting the control valves to avoid over adjustment and potential damage to the closer mechanism. Refer to the installation and maintenance instructions provided in the manual for further guidance on adjusting the door closer.
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