ASSEMBLE THE T-RAIL
Tighten the Chain and Cable
Chain
Tighten
Locknuts
Loosen
Locknuts
Tighten
Rotate
turnbuckle only
while tightening
Do not
rotate
Chain
Loosen
Base of Rail
Connect the 2 ends of the chain assembly together at the turnbuckle
To connect the turnbuckle and threaded shaft, hand
tighten the turnbuckle by rotating the turnbuckle only.
Do not rotate the threaded shaft to avoid twisting the cable.
To avoid twisting the cable, use pliers to
hold the threaded shaft, while tightening
the turnbuckle with a flat screwdriver.
Note: After completing the installation, you may notice
some chain drop with the door fully closed. The chain
should return to the position as shown when the door
is open.
Twist the turnbuckle to
tighten the chain tension
until the chain is 1/3” above
the base of the T-rail.
1/3”
Tighten the locknuts
once the desired
tension is achieved
Note: Too much or too little tension will cause excessive
noise.
9
Attaching the Sprocket Cover
Squeeze the cover slightly and insert the 2 tabs
on the cover in the slots on the motor unit.
8
-7-
- Always keep hand clear of sprocket
and chain while operating opener
- Securely attach sprocket cover before
operating
WARNING
WARNING
