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Ridgid 4512 riving knife/spreader

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Forum topic by SoCalWoodGal posted 05-26-2018 12:32 AM 455 views 0 times favorited 9 replies Add to Favorites Watch
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SoCalWoodGal

48 posts in 878 days


05-26-2018 12:32 AM

I finally got my hands on a new (open box) Ridgid 4512 and it’s taking me forever to assemble. I am now nearing the finish line and so ready to try out this new powerful machine. Light years beyond my crappy portable craftsman ts.

I am assembling the blade guard/kickback pawls, but I notice that the riving knife just pulls right out of the blade area if I lift it. This can’t be right. The orange lever is in the up locked position. I see no screws or attachments where the knife would be attached to the lever or table. Surely something is missing here?

Please advise-
I certainly don’t want to have a flying piece of metal in my shop!!

-- SoCalWoodGal http://brittanyjoyner.com/Woodworking.html


9 replies so far

View TravisH's profile

TravisH

613 posts in 2079 days


#1 posted 05-26-2018 12:51 AM

The orange lever up is not locked, it is functioning as intended to allow removal of the riving knife or positioning of the riving knife for through or non through cutting. You press that lever down (rotates toward front of saw) to lock it.

page 25 of the manual

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GR8HUNTER

4713 posts in 856 days


#2 posted 05-26-2018 02:13 AM

https://www.manualslib.com/manual/878509/Ridgid-R4512.html?page=26#manual

YEPP + 1 :<))

-- Tony---- Reinholds,Pa.------ REMEMBER TO ALWAYS HAVE FUN

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SoCalWoodGal

48 posts in 878 days


#3 posted 05-26-2018 02:20 AM

Sorry, up unlocked position- pointed skyward. I would assume I will always keep it in the up and unlocked position since all I do is through cuts. So, that doesn’t answer why it can just be pulled out with my hands…

-- SoCalWoodGal http://brittanyjoyner.com/Woodworking.html

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GR8HUNTER

4713 posts in 856 days


#4 posted 05-26-2018 02:27 AM

I’m so sorry Brittany I must have misunderstood something here :<))

To install anti-kickback pawls:
 Press and hold the button on the right side of the anti-
kickback pawls.
 Align the slot in the pawls over the rear slot in the spreader/
riving knife.
 Push the pawl handle down snapping them into place
and release the button.

-- Tony---- Reinholds,Pa.------ REMEMBER TO ALWAYS HAVE FUN

View morath's profile

morath

30 posts in 2333 days


#5 posted 05-26-2018 02:31 AM

That’s how it’s made so you can change the blade like TravisH said. Just push the lever down and lock it. It does have two positions so you can use the guard or drop it lower for when you’re not cutting all the way through. Leaving it unlocked sounds like a bad idea to me.

-- My mom says I'm handsome.

View MrWolfe's profile

MrWolfe

93 posts in 267 days


#6 posted 05-26-2018 05:18 AM

I just revisited the riving knife assembly on my Ridgid. I got into a bad habit of not using it. Mine would not fully engage in the locked position so I had to remove the two set screws on top, pop off the riving knife assembly and loosen the retaining nut and bolt to allow it to fully lock… just an 1/8 of a turn or less. A little loc-tite and reassembly and five minutes later it is working perfectly.
The set screws allow you to align the riving knife with the blade. I also spent some time figuring out how quickly the anti-kickback pawls and blade guard can be installed or removed. I’ll use them whenever I can now.
I did all of this tonight because of this thread so I want to say thank you Brittany. I can’t believe how quickly I got into the bad habit of not using these safety features.
Enjoy your TS.

View SoCalWoodGal's profile

SoCalWoodGal

48 posts in 878 days


#7 posted 05-26-2018 07:13 AM

Thanks everyone for chiming in. Figured it out. I assumed since it was already in place, it was factory installed and skipped the step of securing the spreader into the assembly. Once I did, I saw I was indeed, as you all stated, supposed to turn the orange lever down to lock. The diagram they give is rather confusing- makes it look like if you want through cuts, keep the orange lever up. Having it down keeps the spreader secure and I cannot pull it out by hand.
Tomorrow, I finally get to fire it up! Can’t wait!

-- SoCalWoodGal http://brittanyjoyner.com/Woodworking.html

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GR8HUNTER

4713 posts in 856 days


#8 posted 05-26-2018 02:38 PM

I’m so glad you got it figured out Brittany …. GRATZ ON YOUR NEW TOY :<))

-- Tony---- Reinholds,Pa.------ REMEMBER TO ALWAYS HAVE FUN

View WhyMe's profile

WhyMe

1053 posts in 1705 days


#9 posted 05-26-2018 03:17 PM

That diagram refers to the position of the riving knife being up or down for doing through cuts, not the position of the locking handle. The riving knife locking handle should always be down when the saw is in use. I do believe the locking handle in the up position will hit the bottom of the throat plate with the blade fully raised.

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