10
Installation of chain and chain brackets
1. Chain Brackets
1). Please refer to below chain brackets
figure, which shows “U” bolt, “L” bracket
and chain bolt.
Use the “U” bolts (square or round) to
attach the chain brackets to gate frame.
2). If Both the square bolts and round
bolts are not fit for the gate frame, use the
appropriate bolts to attach the chain
brackets to gate frame.
2. How to install the chain
1). Place the chain around the top of the idler wheels and under the drive sprocket in chain box.
2). Connect a chain bolt to one end of chain from chain box by using master link. Then insert the chain bolt
to the L bracket and fix them each other by washers and nuts temporarily. (Nuts will be further adjusted for a
proper chain tension later)
3). Connect second chain bolt with another end of chain from chain box, then attach bolt to the L bracket on
opposite end of gate using the washers and nuts.
4). Make sure that the chain is line up exactly with the position where the chain on the chain idler wheel.
5). Get the desired chain tension by adjusting two chain bolts of the both end.
Cut the unwanted length of chain if necessary.
6). Fix the base plate by tightening the washers and nuts.
7). Insert the operator shaft into the drive sprocket of chain box.
Mount the operator by tightening the bolts and washers.
8). Fix the chain box by tightening the four lax screws.
* Thoroughly fasten the four nuts as well as spring washers onto anchor bolts tightly, enabling the
operator is firmly secured on the concrete pad during the whole gate travel.
