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- GDK installation and operating guide - SOMFY
Installation
> Assembling the rail to the motor head
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• Insert the motor shaft into the rail pinion, then
mount the assembly using engine head screws
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• Tighten the nut to tauten the belt.
• The rubber squashes when tightened.
To obtain the correct tension, the rubber should measure between
18 and 20 mm.
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