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Wed, Nov 2, 11 at 19:54
| I recently replaced the sprocket and worm gear in my craftsman 1/2 h.p. opener. The door opens 6in then reverses,without the light flashing. I read on a previous post that the motor shaft and coupling may not be installed properly. Any tips would be greatly appreciated. |
Follow-Up Postings:
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- Posted by don_1_2006 (My Page) on Thu, Nov 3, 11 at 16:00
| Make sure you put the black cup back on the end of the motor shaft and that it is pressed all the way on. Make sure the RPM sensor is plugged in. If neither of these are the issue, then you probably did not have the motor shaft pushed all the way back when you tightened the coupler after replacing the worm gear. Loosen that coupler up and from the front of the motor (opposite end in which the coupler is on) push the shaft back as far as it will go. Hold it there while you tighten the coupler back up and then try it. |
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- Posted by tuffametuffayou (My Page) on Thu, Nov 3, 11 at 19:03
| Thanks for the tip Don. Just to be clear, the shaft shoud be pushed toward the end that has the black cap or away from it. |
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- Posted by don_1_2006 (My Page) on Fri, Nov 4, 11 at 16:56
| Push the shaft of the motor toward the black cap. |
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