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Adım 5 Düzenleniyor —

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The chain is under a sizeable amount of pressure. It is vital that you release that pressure safely in this step before continuing with the replacement.

Loosen up the nuts and washers that hold the chain to the unit. If done in this way, it won't "snap back" or react in any violent manner, it'll just slip off.

This can be a slow step if your power tools can't reach the nuts. Take the time to understand your new motor unit and the garage door infrastructure as you do this.

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