ASSEMBLY STEP 4

For Sectional and

One-Piece Doors Only

Install the Chain and Attach the Sprocket Cover

WARNING

To avoid possible SERIOUS INJURY to fingers from moving garage door opener:

• ALWAYS keep hand clear of sprocket while operating

opener.

INSTALLING THE CHAIN

1.Dispense a few inches of chain from carton and fasten to trolley with a master link from the hardware bag. (Figure 1).

Leave Chain & Cable Inside Carton to Prevent Kinking

Keep Chain

Taut When Dispensing

• Securely attach sprocket cover BEFORE operating.

Figure 1

Master Link

Clip-On Spring

Master

Link Cap

•Push pins of master link bar through chain link and hole in front end of trolley.

•Push master link cap over pins and past pin notches.

•Slide clip-on spring over cap and onto pin notches until both pins are securely locked in place.

2.With the trolley against the screwdriver, dispense the chain around the pulley.

3.Model 1210E:

•Continue along the rail and around the motor unit sprocket (Figure 2). The sprocket teeth must engage the chain. Continue forward to the trolley threaded shaft.

Model 1220E:

•Continue along the rail and around the motor unit sprocket (Figure 2). Proceed back around the correct groove in the chain spreader (Figure 3). The sprocket teeth must engage the chain.

4.Use the second master link to connect the chain to the flat end of the shaft (Figure 1). Check to make sure the chain is not twisted.

5.Remove the screwdriver.

ATTACHING THE SPROCKET COVER 1210E ONLY

Flat End of

Threaded Shaft

Pin Notch

Pin

Trolley

 

 

Flat End

 

 

of Trolley

 

Chain

Master

Install Chain

Pulley

Link Bar

In This Direction

Bracket

 

Figure 2

Chain

Install Chain

 

Spreader

In This Direction

 

 

Motor Unit

 

 

Sprocket

Figure 3

Chain

6-Tooth

 

Spreader

Sprocket

 

 

Insert the back tab in the slot on the back of the mounting plate. Squeeze the cover slightly and insert the front tab (Figure 4).

Figure 4

Sprocket

 

Cover

Opener

Mounting Plate

One-Piece Doors

6-Tooth Sprocket Application (Model 1220E)

Front Tab Slot

Back Tab Slot

Top of Motor Unit

Mounting

Plate

Chain8-Tooth

SpreaderSprocket

Opener

Mounting Plate

Sectional Doors

8-Tooth Sprocket Application (Model 1220E)

(6-tooth sprocket can be used if slower travel speed

is desired.)

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