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
8
Assembly
STEP 3 Install the idler pulley
1. Lay the chain/cable beside the rail, as shown. Grasp the end of the cable and pass
approximately 12" (30 cm) of cable through the window.Allow it to hang until Assembly
Step4.
2. Remove the tape from the idler pulley. The inside center should be pre-greased. Ifdry,
regrease to ensure proper operation.
3. Place the idler pulley into the window as shown.
4. Insert the idler bolt from the top through the rail and pulley.Tighten with a 3/8" lockwasher
and nut underneath the rail until the lock washer is compressed.
5. Rotate the pulley to be sure it spins freely.
6. Locate the rail tab. The rail tab is near the idler pulley on the front rail section. Use a flat head
screwdriver and liftthe rail tab until the tab is vertical (90º).
Rail
Idler Pulley
Grease Inside
Pulley
Bolt
Chain/cable
Lock Washer
Nut
Bolt
Nut 3/8" Lock Washer 3/8"
HARDWARE
Rail Tab