To prevent SERIOUS INJURY:
• DO NOT connect power until instructed.
• Keep hands and fingers clear from sprocket during
operation.
• Wear gloves when installing chain/belt and cable.
• Keep hands and fingers away from joints and
possible sharp edges.
WARNING
Rotate the Belt Connector towards the Trolley Sha until the
belt is slightly loose about 1/4” (6mm) above the base of the rail.
Refer to the actual-sized illustration below for proper belt tension.
Tighten the Flange Nut on Trolley Sha against the
Belt Connector. Remove the temporary screw driver
holding the position of the trolley.
Tighten until...
Belt connector
1/4 inch
(.64 cm)
Nut
8
masterforceopeners.com Customer Service: 1-877-436-4402
Look in the box for:
Sprocket Cover
Front
Tab
Rear Tab
Self-Threading Screw
#8-18 x 5/16
Flange Nut
1
2
3
Aer the belt is connected, attach the Sprocket Cover to the opener with the screw and nut provided.
8