Ridgid 4424 Oscillating Spindle Sander fix

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Forum topic by Backwood posted 09-29-2012 04:22 PM 2863 views 1 time favorited 6 replies Add to Favorites Watch
View Backwood's profile


35 posts in 2301 days

09-29-2012 04:22 PM

Topic tags/keywords: tip trick sander

My Ridgid OSS would not start on it’s own anymore and I looked everywhere for a fix, and could not find one. I finally discovered that the start up problem comes from the relay connected to the switch had become fouled. Unplug the sander, turn it over and remove the feet and screws from the bottom and remove the bottom cover. The relay is right by the switch…mark the color coded connections and remove them. A single screw holds the relay together. Carefully remove it and clean the contacts inside. Replace everything and voila, the sander works as good as new. Hopes this helps someone.

6 replies so far

View Dusty56's profile


11819 posts in 3655 days

#1 posted 09-29-2012 05:48 PM

Thank you …I will try to keep this in mind if mine ever craps out : )

-- I'm absolutely positive that I couldn't be more uncertain!

View Gene Howe's profile

Gene Howe

10368 posts in 3396 days

#2 posted 09-29-2012 05:58 PM

Thanks. Same as Dusty.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View Richforever's profile


757 posts in 3687 days

#3 posted 09-29-2012 07:21 PM

Thanks! My sanding sleeves slip on the cylinders, and I’m trying to figure out the best fix for that.

-- Rich, Seattle, WA

View Bill White's profile

Bill White

4907 posts in 3928 days

#4 posted 09-29-2012 07:47 PM

Slipping sleeves: Are ya using the correct washers, and are the drums clear?
Good tip on the contacts.


View Grandpa's profile


3259 posts in 2643 days

#5 posted 09-29-2012 08:23 PM

Slipping sleeves can usually be corrected by WASHERS and not one in my case. Thanks for the tip on the contacts

View nwbusa's profile


1021 posts in 2253 days

#6 posted 09-29-2012 09:08 PM

Tightening up the top screw with the correct washer in place has solved the slipping sleeves on my Ridgid sander.

-- John, BC, Canada

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