Connect Rail To Operator - Chamberlain HCTDCU Installation Manual

INSTALLATION
STEP 1

CONNECT RAIL TO OPERATOR

1. Remove the screws and open the cover of the operator.
2. Remove the chain guard from the chassis.
3. Lay the rail on the floor. Align the key holes on the end of the rail with the cap screws on the chassis.
4. Attach the rail to the chassis with the carriage bolts, lock nuts, and washers provided. Tighten cap screws on key holes.
5. Cut the cable tie on the chain and position the trolley within 3 feet (.9 m) of the end of the rail.
6. Wrap the chain around the sprocket.
7. Adjust the chain tension with the turnbuckle so that the chain hangs no more than 1/4" (.64 cm) from the top of the rail. Tighten the hex nut to
secure the chain.
8. Reattach the chain guard to the chassis.
9. Close the cover and attach with screws.
2
6
Chain Guard
Turnbuckle
7
Hex Nut
1
3
Top of Rail
1/4" (.64 cm) Max.
Cap Screw
4
5
Trolley
Nut
Within 3 feet (.9 m)
Washer
Carriage Bolt
10