Im new to farming so bare with me! When i purchased a new coupler chain to connect my 9600 combine to the pickup header...the chain fits perfectly around the sprockets but there is no removable link to secure the chain ends together. I found a couple old coupler chains inside the combine and they also had no removable half link to secure them. How exactly do you keep this chain on without a removable link? Ive attached a picture of the actual chain.