Controlled Products Systems Group 9000-080 - Manual (Page 19)

9000-065-F-9-10 17
Lower chain does NOT align with upper chain.
Note: Be sure that the chain is aligned and
parallel to the gate. Installing the chain in any
other manner will cause excessive noise,
chain idler wheel wear and chain stretching.
Lower chain MUST align
with upper chain!
Upper and lower chain MUST be the same
height as they are on the operator idler wheels.
NO
NO
NO
1.8 Endless Idler Assembly ( On Select Installations )
Gate Rail
Gate Rail
Chain
Bracket
Endless
Idler
Upper Chain
Lower Chain Chain
Bracket
Chain
Return
Operator
Idler
Wheels
Operator
Idler
Wheel
Operator
Idler
Wheel
Lower chain
mounted Too High.
Lower chain mounted
Too Low.
NO
NO
Lower chain
mounted Too High.
Lower chain mounted
Too Low.
DoorKing offers an endless idler assembly with a protective cover designed for the Model 9000 installations (P/N 2600-818).
Make sure the endless idler assembly is securely fastened to the wall or post (Depending on which type of installation will be
used). Extreme force will be exerted on this assembly during gate cycling.
Lower chain MUST be 1 inch lower than
the endless idler’s 180° chain return.
Center and Rear Mount Positions (Top View)
Rear Mount Position (Side View)
Center Mount Position (Side View)
Gate Rail
Chain
Bracket
Chain Brackets
Endless
Idler
Endless
Idler
Upper Chain
Lower Chain
Chain
Bracket
Chain
Return
1”
YES
YES
YES