ASSEMBLY STEP 2
Attach the Chain Spreader and
MODELS 1256R AND 1246R ONLY
ïLine up the holes in the chain spreader with the holes in the motor unit as shown. The slot in the chain spreader must fit over the Rail flange (Figure 1).
ïSecurely fasten the chain spreader with the hardware provided.
ïRemove the trolley threaded shaft from the trolley by loosening the inner nut and lock washer (Figure 2).
ïGuide the chain around the selected groove in the chain spreader (to engage either the
ïContinue dispensing the chain forward to the trolley (Figure 4). Reconnect the trolley to the trolley threaded shaft. Proceed to Assembly Step 3 for chain tightening instructions.
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| Outer | Inner Nut | Trolley |
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| Nut | and Washer | Threaded Shaft |
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Rail
Trolley
Figure 2
WARNING
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.
| #8x1" | |
| Hex Screw | |
USE ONLY | Washers | |
Chain | ||
THIS TYPE | ||
Spreader | ||
AND SIZE | ||
Slot | ||
SCREW | ||
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Rail
Flange
Figure 1
Chain |
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Spreader | |
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| Sprocket |
Motor Unit
Mounting Plate
Chain
Spreader6-Tooth
Sprocket
Motor Unit
Mounting Plate
Figure 3
Install Chain
In This Direction
Chain |
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Spreader | Sprocket |
Figure 4
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