Instructions / Assembly

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 ofthe opener.
1. Insert a 1/4"-20x1-3/4" bolt into the cover protection bolt hole on the backend ofthe rail as
shown. Tighten securely with a 1/4"-20 locknut. DO NOT overtighten.
2. Remove the boltsfrom the top ofthe motor unit.
3. Use the carton to support the front end of the rail.
4. Place the “U” bracket,flatside 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.
“U” Bracket
Bolts (Mounted in the garage door opener)
Cover Protection Bolt Hole
Bolt
Lock Nut
Bolt
1/4"-20x1-3/4"
Lock Nut
1/4"-20
HARDWARE
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
Step4.
2. Remove the tape from the idler pulley.The inside center should be pre-greased. If dry,
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" lock washer
and nut underneath the rail until the lock washer is compressed.
5. Rotate the pulley to be sure itspins freely.
6. Locate the rail tab. The rail tab is near the idler pulley on the front rail section. Use a flathead
screwdriver and lift the 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