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|model||B-139||Brand||Bai hi||physical dimension||305 * 130 * 63 (mm)|
|Adapt to door size||1200 * 2300 (mm)||Bearing the door weight||60-135 (kg)||The door is open||90-116 (°)|
|The main mining system||cast iron||Surface treatment||Drawing||Adaptation scope||Steel doors, wooden doors, 8-12mm tempered glass doors|
Installation steps of ground spring
1 : Draw line, make ground spring axis center and door clip axis overlap.
2 : Open holes in the ground according to the instruction and material object, the size of the hole shall be tightly fitted with the spring housing, Do not loosen.
3：Place the ground spring into the open hole, Straighten out.
4 : Pick up the door fitted with the door clip, the rotating shaft of the ground spring is inserted into the rotating shaft hole of the door leaf.
5 : A screw that regulates the direction of the spring in three directions, Keep the door fan upright, And the upper and lower rotation axis coincide.
6 : Adjust the speed of closing door
7：Cover the top of the spring decoration