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Paul from SWISCO responded:
February 1, 2024
Hello, It looks like you have an old National door and we've related the available parts that we carry for your door. Your bottom door images are guide pins. The 21-026B pins consist of a 1/4" plain pin with the 21-113 nylon cap, the 21-252 spring, the 1/4" diameter 21-150 nylinder to help the pin slide through the door openings, and a lock on 21-155 push nut. Image 3584 shows the 21-046 bottom adjusting pivot going into the 21-204 bottom bracket. Again, you might need the 21-151 (5/16") nylinder to help the threaded pin through the door. The top pins are our 21-041, which inserts into the 21-204 pivot bracket. The top pin in image 2 is the 21-026B spring loaded guide pin, with the 21-113 nylon cap, 21-252 spring, and 21-155 push nut. You might also need the 21-150 (1/4") nylinders again. You don't need to replace all the parts, just the ones that are worn out. Regarding the top pins in image Top Pin3, the spring-loaded pins should have a 21-113 nylon cap, not the 21-204 pivot bracket. Review the specifications and see what you think. |
