LiftMaster 71-6023 Manual Del Usuario

APPLICATION
This chain tensioner kit is for H, J and HJ commercial door
operators.
INSTALLATION
1. Disconnect power to operator.
2. Secure the door according to the door manufacturer's
instructions.
3. Disconnect the drive chain running from the operator drive
sprocket to the door sprocket.
4. Remove set screws from output shaft on the operator and
slide off operator drive sprocket.
5. Slide the shaft collar first then chain tensioner onto output
shaft.
6. Attach the other end of chain tensioner to door shaft and slide
shaft collar on door shaft to hold chain tensioner in place.
Door Sprocket
Door Shaft
Operator
Drive Sprocket
CHAIN TENSIONER KIT
To prevent possible SERIOUS INJURY or DEATH, disconnect
electric power to operator BEFORE installing.
ALL installations and electrical connections MUST be made by
a qualified individual.
WARNING: This product can expose you to chemicals including
lead, which are known to the State of California to cause cancer
or birth defects or other reproductive harm. For more information
go to www.P65Warnings.ca.gov
7. Replace the operator drive sprocket on output shaft and
tighten.
8. Reconnect drive chain.
9. Position the chain tensioner then tighten the adjustment
screws on the chain tensioner. This will lock the tensioner in
place and maintain desired chain tension between the operator
drive sprocket and the door sprocket.
10. Reconnect power.
Chain Tensioner
Shaft Collar
Output Shaft
MODEL 71-6023