Assembly Step 2

Attach the Chain Spreader

and Re-install the Chain

For Models 1256 and 1246 only

Line up the holes in the chain spreader with the holes in the opener as shown. The slot in the chain spreader must fit over the T-rail flange.

Securely fasten the chain spreader with the hardware provided.

Remove the trolley threaded shaft from the trolley by loosening the inner nut and lock washer.

WARNING

Serious injury can result if fingers become entangled in moving opener sprocket. Attach sprocket cover securely. Never operate opener while your hand is near the opener sprocket.

USE ONLY

#8x1"

Hex Screw

THIS TYPE

Washers

AND SIZE

SCREW

Chain

 

 

Spreader

 

Slot

 

T-rail

 

Flange

 

 

 

Outer

Inner Nut

Trolley

 

 

 

 

Threaded

 

 

 

 

Nut

and Washer

Shaft

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T-rail

Trolley

Chain

Spreader

8-Tooth

Guide the chain around the selected groove in the chain spreader (to engage either the

8-tooth sprocket or the 6-tooth sprocket) as shown.

Chain

Spreader

Sprocket

Opener

Mounting Plate

6-Tooth Sprocket

Opener

Mounting Plate

Install Chain

In This Direction

Continue dispensing the chain forward to the trolley. Reconnect the trolley to the trolley threaded shaft. Proceed to page 11 for chain tightening instructions.

Chain

SpreaderOpener

Sprocket

Chain

10