ROS pad failure

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Forum topic by bigblockyeti posted 01-25-2015 08:32 PM 921 views 0 times favorited 7 replies Add to Favorites Watch
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5094 posts in 1687 days

01-25-2015 08:32 PM

Topic tags/keywords: question sander

I have a Porter Cable 7335 ROS that is my go to sander for most sanding chores, but the 5” pad has failed me yet again. I bought this new about 6-7 years ago and the factory pad lasted over 5 1/2 years. After installing an identical replacement from Porter Cable the new pad has failed in less than a year????? The folks at Porter Cable were able to offer a little insight as to why this could have happened, likely the age, but even that seems like a long shot. Nothing else has changed in how the sander is used (or how frequently) or handled. Any other thoughts?

7 replies so far

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1543 posts in 2098 days

#1 posted 01-25-2015 10:14 PM

Is it just possibly the sanding/anbrasive discs atb fault and the pad is fine? I’ve experienced some faulty discs in the past. “Gators”.

-- Russell Pitner Hixson, TN 37343

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5094 posts in 1687 days

#2 posted 01-25-2015 10:24 PM

Not sure why the picture didn’t load the first time around, anyway, the failure was to be described better by the picture than by my words. The hooks on the pad combined with the loops on the paper never cause me any problems on either pad.

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20923 posts in 2770 days

#3 posted 01-26-2015 01:50 PM

Maybe applying too much presure while sanding??? I feel like Shultz on Hogans Heros….....”I know nu-thing”

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed.

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5094 posts in 1687 days

#4 posted 01-26-2015 03:34 PM

I like to let the sander do the work. I wasn’t doing anything different with the second one that lasted less than a year vs. the first one that lasted nearly six years.

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4718 posts in 3209 days

#5 posted 01-26-2015 05:26 PM

I had the same thing happen twice with my Makita ROS.The first time, I think I was bearing down too hard and not letting the tool do the work. The second replacement pad lasted about 2 years and again quit. The third pad has been on for around 6 months now, but I haven’t been doing much in the way of sanding, so I don’t know how long it will last. I can only guess that the replacement parts are not up to par with the original. A course grit can put a lot of torque stress on the pad. Maybe limit your grits to medium to fine; heat can also be a factor.

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11478 posts in 2346 days

#6 posted 01-26-2015 08:52 PM

I would say too much pressure, that’s what happened to mine when I allowed my wife to use it. But you say you aren’t using too much pressure so maybe over heating.

-- Rick M,

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5094 posts in 1687 days

#7 posted 01-27-2015 12:42 AM

Could be getting a little warm, I will let paper get pretty far gone before pitching it. But again, nothing different than how I used the first pad the sander came with. I hope it was just a fluke or new old stock that had been sitting on a shelf somewhere for way too long.

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