I want to disassemble and reassembly to clean the lifting mechianisim. I thought the pinion gear (sears part number 818165) was bad. After removing this part it seems OK. i checked sears parts direct this part and many other are no longer available. Is there any other source to get parts for this saw?
Thank you for your question on the radial arm saw.It has been my experience that the elevation screw and the elevation nut is where you problem may be.If the elevation knob and gears system is very hard to turn then it may be these two parts that need lubrication.If the knob and gear system spin freely then the lock nut on the bottom of the elevation screw may have come off or has broken.If it is just very tight then remove the top cap on the column and spray lubricant down the elevation shaft rather that take the arm and column covers off unless you have too.You are right in that many of these parts are no longer available for replacement.Since this radial arm saw was only made for the Craftsman line of tools by the special products division of Emerson electric I know of no known secondary source for parts other that what you may be able to find in used parts on the internets wood working sites.Please let me know what you find out and it may be that lubricating the elevation shaft will solve the problem.Sam A.
I did disassemble the saw and l cleaned all the parts with brake cleaner. After I reassembled the support column and all the pieces. The radal arm moves up and down smoothly. I struggled and did not get the pinion gear installed which raises and lowers the radial arm using the handling on the from the front of the saw. I think may need to install this gear prior to the lift mechanisim to get pinion gear installed correctly. any advice on this. Three other questions. What should I use to lubericate the screw, gib column and the bearings? Does it matter how tight do I tighted the bolts that attached the gib column to the arm and the table?. itook the arm off is there any special aligment I must do ojust ollowing the instruction in the owners manual?
Thank you for the update on the radial arm saw. You should be able to pull the shaft out towards the front of the saw frame to install the bevel gear if that is what you are referring too. It is a bit tight in that whole area to work in. I would suggest that you use a 100% silicone spray. If you use anything with grease in it saw dust will cling to it. If you are referring to the carriage bearings then a light stray of lubricant is more to cleaning the track and the bearings surfaces than lubricating the sealed carriage bearings. Yes it does matter how tight you have the gibs on the column clamps. Tight enough to not have any side to side movement but not so tight that you have trouble moving the column it up and down. I believe the manual has some instructions on the 90 degree alignment as well as the tightness of the column. Please let me know how you doing with this project. Just in case you do not have the manual I have given you a link to our manual site for this model. Also there is a guard kit recall that pertains to this model if you have not already gotten the new updated kit. I have put the link in below just in case you unit has not had the updated guard kit. Sam A.
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