MasterCraft 046-0266-0 Instruction Manual page 15

Belt drive garage door opener
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Align the Belt on the Sprocket
Start aligning the belt by placing the turnbuckle 10" (25 cm) from the sprocket. Wrap the belt around the
sprocket. The sprocket must engage the belt as shown.
Place the Belt on the Pulley
Place the belt around the pulley at the end of the rail.
Tighten the belt at the mid-point, approximately 1/2" (13 mm) above the base of the T-rail. DO NOT
over-tighten the belt.
15

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