User Manual
Table Of Contents
- Owner’s Manual C450
- Preparation
- Assembly
- Installation
- STEP 1 Determine the header bracket location
- STEP 2 Install the header bracket
- STEP 3 Attach the rail to the header bracket
- STEP 4 Position the garage door opener
- STEP 5 Hang the garage door opener
- STEP 6 Install the light bulbs
- STEP 7 Attach the emergency release rope and handle
- STEP 8 Install the door bracket
- STEP 9 Connect the door arm to the trolley
- STEP 10 Install the door control
- STEP 11 Wire the door control to the garage door opener
- STEP 12 Attach the warning labels
- STEP 13 Install the Protector System®
- STEP 14 Wire the Safety Reversing Sensors
- STEP 15 Connect power
- STEP 16 Aligning the safety reversing sensors
- STEP 17 Ensure the door control is wired correctly
- Adjustments
- MyQ® Smartphone Control
- Operation
- Maintenance
- Troubleshooting
- Accessories
- Warranty
- Repair Parts
- SPANISH
7
Assembly
STEP 2 Fasten the rail to the motor unit
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the
top of the opener.
1. Insert a 1/4"-20 x 1-3/4" boltinto the cover protection bolt hole on the back end of the rail as
shown. Tighten securely with a 1/4"-20 locknut.DO NOT overtighten.
2. Remove the boltsfrom the top of the motor unit.
3. Use the carton to support the front end of the rail.
4. Place the “U” bracket, flat side down onto the motor unit and align the bracket holes with the
bolt holes.
5. Fasten the “U” bracket with the previouslyremoved bolts ; DO NOT use any power tools.The
use of power tools may permanentlydamage the garage door opener.
6. Attach chain spreader to the motor unit with two screws.
“U” Bracket
Hex Screws
8-32x7/16
Cover
Protection
Bolt Hole
Bolt
Lock Nut
Bolts (Mounted in the
garage door opener)
Chain
Spreader
Bolt
1/4"-20x1-3/4"
Lock Nut
1/4"-20
HARDWARE