LumberJocks

Trunnion or table top adjustment?

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by Cato posted 07-28-2009 02:58 AM 1500 views 0 times favorited 7 replies Add to Favorites Watch
View Cato's profile

Cato

693 posts in 2777 days


07-28-2009 02:58 AM

I have the Ridgid R4511 granite top TS. I guess when I assembled the saw back in May I didn’t check my miter slot to blade squareness as close as I should have. I mostly rip cut on my TS.

Anyway I noticed yesterday when cutting some ply at 24” that my fence scale measurement was off 1/16, where when I’m cutting at 6-8 inches the scale reads correct. When I checked the miter to blade squareness I found that the blade tails away from my combination square in the left miter slot about 1/32 from front of blade to back using the same tooth as reference point.

So would this affect my fence scale?? I’m thinking it must and amplify the further the fence gets away from the blade.

Regardless, I want to go ahead and square the miter to blade and then re square the fence to blade and I am wondering if I should loosen the table top and square that way or should this be a trunnion adjusment?

On this TS the trunnion attaches to the cabinet. Any suggestions would be a big help before I start making adjustments!!


7 replies so far

View jerryz's profile

jerryz

164 posts in 2743 days


#1 posted 07-28-2009 03:38 AM

Well if the trunion ataches to the cabinet then adjusting it should be a snap.
Before you start Check that the blade is 90 deg to the table with a good quality combination square or a machinist square.
First you loosen the 4 bolts that attach the table top to the cabinet
Check and adjust the measurement between the Miter slot and the Saw Blade making sure to always use the same point (tooth)
After you are satisfied that the slot is parallel to blade tightnen the bolts carefully so that you don’t loose your adjsutement.
Now adjust the fence to the miter making it also parallel.
For maximum precision it is recommended to use a Dial Gauge indicator but you can also use a combination square.

View Cato's profile

Cato

693 posts in 2777 days


#2 posted 07-28-2009 07:38 PM

Jerry,
thanks, I kinda thought that might be the logical way to do it, only reason I posed the question was the manual suggested some method where you put a block of wood against the blade and pushed it square to the miter. This didn’t make sense to me and sounds like it could ruin a blade.
Oh congrats on your new saw!! I have heard nothing but rave reviews from all owners of that craftsman unit.
It was on my shortlist when this Ridgid went on sale and my local Sears did not have a display model of the one you got, otherwise that probably would have been sitting on my floor.

View PurpLev's profile

PurpLev

8523 posts in 3113 days


#3 posted 07-28-2009 08:00 PM

- unbolt 4 bolts that hold table to cabinet,
- shift table to align blade with miter slot,
- tighten 4 bolts
- done.

I did this when I assembled the saw since I took the table top off. you square the table to the blade, you never touch the trunnion.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View PurpLev's profile

PurpLev

8523 posts in 3113 days


#4 posted 07-28-2009 08:04 PM

as Jerry suggested – make sure blade is at 90.

also – I wouldn’t worry about alignment perfection to within 0.000” .... a couple of 0.001” should be good enough. as long as it’s not 1/32”, or 1/64” (read- visible gap).

another thing to do – when you tighten the bolts back in, do it in rotation , tighten bolt 1 a little bit (not all the way), then the next…then the next, then the next… and back to the first one, so that you keep somewhat of an even pressure on all of them at all times – helps keep the alignment from shifting while you’re busy with the bolts.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View Dick, & Barb Cain's profile

Dick, & Barb Cain

8693 posts in 3764 days


#5 posted 07-28-2009 08:12 PM

Aligning the blade parallel with the miter slot is correct

-- -** You are never to old to set another goal or to dream a new dream ****************** Dick, & Barb Cain, Hibbing, MN. http://www.woodcarvingillustrated.com/gallery/member.php?uid=3627&protype=1

View Cato's profile

Cato

693 posts in 2777 days


#6 posted 07-28-2009 09:01 PM

Got it guys, and thanks, just wanted to make sure on the trunnion deal as that was the only way to square on my old sears saw, bang the trunnion with a 2×4 and dead blow hammer.

Glad I can pivot the top on this one, and think I have some fine feeler gauges that may help get it closer than just using my eyes.

I must have been too excited in the assembly mode frenzy to fine tune, and since I have just recently started to spend more time on the saw, I can see that I need to take some time and true up everything properly so I can do more than just rip basic rip cuts.

View Dick, & Barb Cain's profile

Dick, & Barb Cain

8693 posts in 3764 days


#7 posted 07-28-2009 09:07 PM

Like my wife always tells me, ”Did you read the directions?”<(;O}#

-- -** You are never to old to set another goal or to dream a new dream ****************** Dick, & Barb Cain, Hibbing, MN. http://www.woodcarvingillustrated.com/gallery/member.php?uid=3627&protype=1

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com