Michael Helms Posted July 22, 2019 Report Share Posted July 22, 2019 Hey guys, I bought a used Ridgid R4512 table saw that's equipped with the four-caster mobile base. I dismounted and disassembled the mobile base to clean off some rust, and after I reassembled the base, the casters will not remain locked down in the rolling position. The slightest bump causes the saw base to retract unless I keep my foot on the pedal that lifts the saw into the rolling position. This is very awkward and inconvenient. I believe I've reassembled the base correctly, but I don't have the manual for the four-caster version of the R4512 saw (the original owner lost the hard-copy manual). The manuals for the R4512 I've so far found online are all for later models with the three-caster base. I don't know, maybe the issue I’m having with this saw is the reason the current R4512 saws have the three-caster base? A search brought up one post on another forum from an R4512 owner experiencing the same issue, but the response he received was vague, advising him that some unknown and unnamed part might need to be rotated 180 degrees. I can only guess what this part might be, I tried reversing the shaft that joins the aft pair of casters end-to-end, but that didn’t improve things. Anyway if anyone owns the four-caster version of the saw, I'd like to hear any guidance you can offer. Also, if anyone knows where I can download the owner's manual for the four-caster base assembly, please let me know. Thanks in advance... Quote Link to comment Share on other sites More sharing options...
gee-dub Posted July 22, 2019 Report Share Posted July 22, 2019 I found the post where they mention rotating the “Caster arms” 180°. They do not indicate whether this is end for end or along the axis. They do indicate that a close comparison of the unit with the diagram in the instructions made the flaw easier to detect. Quote Link to comment Share on other sites More sharing options...
legenddc Posted July 22, 2019 Report Share Posted July 22, 2019 You have the 4 wheel version where you have to flip the lever on both sides? https://www.manualslib.com/manual/878509/Ridgid-R4512.html If that doesn't work you could try to look for the Craftsman version of the saw, model #21833. Quote Link to comment Share on other sites More sharing options...
Mark J Posted July 23, 2019 Report Share Posted July 23, 2019 ...or contact Rigid directly. I believe they have decent customer service. Quote Link to comment Share on other sites More sharing options...
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