Cman 113 table saw tune-up question

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Forum topic by weldoman posted 09-06-2014 06:21 PM 762 views 0 times favorited 7 replies Add to Favorites Watch
View weldoman's profile


114 posts in 1474 days

09-06-2014 06:21 PM

I’m trying to get my blade parallel to the miter slot using a dial indicator and a jig on my miter gauge. I adjusted the rear trunion bolts( with drive belt off) and got it within .001 front to rear of fully raised blade. After installing the belt I rechecked my measurements and it was off .009. Whats up with that?

For your info, I’m not a machinist and didn’t stay at Holiday Inn last night. Thanks Dave

-- missouri, dave

7 replies so far

View dhazelton's profile


2283 posts in 1713 days

#1 posted 09-06-2014 06:24 PM

Just the act of turning the bolt can push the trunnion. Loosen them up and move the trunnion a bit farther than you think you need to and tighten the bolts back up. Or maybe you can get a spreader clamp in there to hold it in place as you tighten the bolts.

View weldoman's profile


114 posts in 1474 days

#2 posted 09-06-2014 06:30 PM

Should I adjust it with the belt on?

-- missouri, dave

View cutmantom's profile


388 posts in 2451 days

#3 posted 09-06-2014 06:38 PM

If you take the belt back off does it go back to .001, .009 doesn’t seem bad to me

View toolie's profile


2009 posts in 2045 days

#4 posted 09-06-2014 09:03 PM

Following the set up instructions with a cheap dial gauge mounted to a miter gauge lets me get the blades on my Emerson built 19”contractor saws (same as your 113) to +/- .001 to the miter slot. Just make sure whatever miter gauge is used that it slide snugly with no side to side sloppiness. And remember that there are six bolts that secure the trunions to the underside of the table. I loosen five of them and loosen the sixth( any one of the four corners) just enough so the trunnions will pivot on it. I have always aligned my saws with the drive bet attached.

Good luck.

-- there's a solution to every just have to be willing to find it.

View TheFridge's profile


5669 posts in 902 days

#5 posted 09-06-2014 09:19 PM

Leave the belt on.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View weldoman's profile


114 posts in 1474 days

#6 posted 09-06-2014 09:54 PM

Cutman, yes, when I take the belt off it returns to .001. Thanks guys, I’ll adjust it with the belt on.

-- missouri, dave

View johnstoneb's profile


2104 posts in 1589 days

#7 posted 09-07-2014 12:44 AM

If you have movement when you put the belt on and it come back when taking the belt off adjusting with the belt on will not compensate for the wear or end play in the arbor bearings. You need to correct that before trying to square the blade to the table.

-- Bruce, Boise, ID

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