8
4.3
Sprockets, Spreader Bar and Drive Chain Installation
The hardware components shown in Figure 8 have been supplied with your operator.
1. Place the door sprocket loosely on the door shaft.
2. Place the operator drive sprocket on the appropriate side of the operator and align it with the drive sprocket of
the operator.
3. Lock the operator and door sprockets in place by inserting the keys and tightening their respective set
screws.
4. Wrap the operator drive chain around the door sprocket and the operator sprocket. Shorten the drive chain to
the appropriate length. Use the chain link to attach the operator drive chain together.
5. Slide the operator to tighten the drive chain and then firmly tighten the mounting bolts.
6. Check the tension on the chain (there should be no more than a 1/4" of slack when the chain is depressed
between the sprockets).
7. Manaras-Opera recommends the use of a chain spreader (sold separately).
For technical support, please call
1-800-361-2260
for more information
Figure 8 - Hardware Components
Bolt 3/8-16
(To attach chain
spreader)
5
Set Screw
Door Sprocket
Spreader Collar
Chain Spreader
Spreader Collar
Operator Sprocket
Key
Key
Drive Chain
Washer 3/8
Lock Washer 3/8
Nut 3/8-16
1
2
3
3
4
6
7
Door Shaft
Operator Shaft
