Amazon.com: D. Lee's review of Chamberlain PD752D 3/4-Horsepower Heavy-Du...
Customer Review
 
7 of 9 people found the following review helpful:
4.0 out of 5 stars Great value, nice quality, easy install, slightly jerky..., July 4, 2008
By D. Lee
Length:: 1:32 Mins

How can you beat $169 for this machine?! The material quality is pretty good. It was fairly easy to install. It took my son and I about 3.5 hours (and I'm a mechanic). I would rate the difficulty at about 2.5 wrenches (1 wrench means most people can perform the task at home; while 4 wrenches means leave it to the pros). You decide if this task is for you. See the video I took to see what I mean by "jerky." In all honesty, I haven't contacted Chamberlain about this yet. It is possible I have an adjustment to make. If that's the case, I'll update this review promptly.

UPDATE: Ok, here were are 3 1/2 months later. I originally set the chain tension to specs and now I've let it settle and re-adjusted it, again to specs. It still bucks and jerks a little. Is it enough to really irritate me? Nope, it's a minor annoyance. I just want you to know that this is the experience I've had with mine. I may still buy another one for my other garage door.
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4.6 out of 5 stars (33 customer reviews)
5 star:
 (24)
4 star:
 (6)
3 star:
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2 star:    (0)
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$219.00
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Reviewer

D. Lee
(REAL NAME)   

Location: San Jose, CA

New Reviewer Rank: 51,108
Classic Reviewer Rank: 208,738

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Initial post: Jul 7, 2008 12:33 PM PDT
 Victor H. Agresti says:
"See the video I took to see what I mean by "jerky."

Try tightening the chain, to reduce the amount of "play". With less play, it should "jerk" less...
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