Attach the Rail to the Motor Unit
To avoid installation difficulties, do not run the garage door opener until instructed to do so.
•Remove the two washered bolts mounted in top of motor unit.
•Position rail at a 45˚ angle to opener so one hole in rail and motor unit line up.
•Thread one of the washered bolts part way in.
Use only these bolts! Use of any other bolts will cause serious damage to door opener.
•Align rail and styrofoam over sprocket. Cut tape from rail, chain and styrofoam.
•REMOVE STYROFOAM.
ASSEMBLY STEP 2
Attach the Chain to the Sprocket and Install the Sprocket Cover
• | Position chain over the sprocket. If necessary, loosen |
| the outer nut on the trolley to obtain more chain slack. |
• | Insert the second washered bolt. CAUTION: Use only |
| the bolt previously removed from motor unit! |
• | Tighten both bolts securely through the rail into the |
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener.
USE ONLY THIS
TYPE AND SIZE
BOLTWashered Bolt 
5/16"-18x1/2"
Styrofoam
Rail
Hole
To avoid possible SERIOUS INJURY to fingers from moving garage door opener:
•ALWAYS keep hand clear of sprocket while operating opener.
•Securely attach sprocket cover BEFORE operating.
Washered Bolts
motor unit as shown. |
• Install the sprocket cover: Insert the back tab in the slot. |
Squeeze the cover slightly and insert the front tab in the |
slot on the mounting plate. |
USE ONLY THIS
TYPE AND SIZE
BOLT
Sprocket
Sprocket Cover
Back Tab Slot
Front Tab Slot | Mounting |
| |
| Plate |
6