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Dewalt RAS question

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Forum topic by ja6ke posted 167 days ago 565 views 0 times favorited 13 replies Add to Favorites Watch
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ja6ke

35 posts in 168 days


167 days ago

I have a 1956 Dewalt RAS that I am trying to align the blade on. I am following the guidelines in the “Mr Sawdust” book but am roadblocked, at least I think I am.

I am attempting to get the blade perpendicular to the table as described. I have removed the Allen bolts as described and attempted to use a bit of 3/4 ply on its side to nudge the motor into alignment using the height adjustment. Using a considerable amount of force but I can’t get the clutch to slip. Anyone have any advice on next steps?

Thanks
John


13 replies so far

View Fred Hargis's profile

Fred Hargis

1642 posts in 1090 days


#1 posted 167 days ago

Did you loosen the big socket bolt in the middle as well? Sometimes it’s a little too tight. If all three are loose and it won’t tilt it may just take some force. You might want to disassemble the motor from the yoke and just clean the surfaces of the rotating parts a little. I make this offer to everyone with a Dewalt: I have a couple of pdf files that are really useful. The first is a cliff notes version of rebuilding a Dewalt, the second is an alignment method that explains things much better than Kunkel’s book. Both are written by the same guy, a noted Dewalt guru over at the Dewalt RAS forum. I can e-mail them if you like….I’ll need an e-mail address (PM).

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

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ja6ke

35 posts in 168 days


#2 posted 166 days ago

Yep, just got back from checking. That big middle bolt is stuck pretty good.

Thanks for the offer of pdfs. I will send personal email once I hit the magic 5 posts and it is enabled.

Thanks
John

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mantwi

296 posts in 493 days


#3 posted 166 days ago

If you can’t adjust the saw head take the easy route and adjust the table. You can shim the table at the fastening points to bring it square to the blade horizontally. To adjust the fence square with the blade snug the table bolts but not so much as to lock it in place. Set the saw to it’s 90 degree index and using a framing square against the blade and fence tap the table forward or rearward at alternating corners as needed to align it. You have to check the square at both ends of the blades travel but it works like a charm. Since as you have found the column to arm lock up are solid, so solid you can’t move it I doubt that this is the cause of the misalignment. More likely the table was not properly adjusted or has drifted out of adjustment through use.
Years ago before the middle east went crazy we had a saying “if you can’t bring the mountain to Mohammed, bring Mohammed to the mountain.” That fits this situation to a T.

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ja6ke

35 posts in 168 days


#4 posted 166 days ago

Mantwi,

I thought about this some. The delta from vertical is about a 1/4 ”. Using the “Mr Sawdust” method the table is good across the entire travel of the arm. I was worried if I fixed the blade issue by moving the table then cuts at other angles would drop off badly over the length of the arm travel. Plus I am just stubborn. Everything else lines up. Since I mostly bought this beast for dados I spent a non trivial amount of time getting the table adjusted… Still if I can’t get that blade vertical this might be the way I have to go.

v/r
John

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Fred Hargis

1642 posts in 1090 days


#5 posted 166 days ago

If that center bolt is stuck, place a block of wood under the motor (small piece of 4×4 or such) and crank the arm down to where the motor is sitting on the block. Then put force on the bolt to loosen it. That relieves some of the force from bearing on the yoke/arm.

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

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hairy

1988 posts in 2129 days


#6 posted 166 days ago

I recently put a 1959 DeWalt RAS back to work. I used a lot of Kroil to get things loosened up. It is better than anything else for this purpose.

-- what a long, strange trip it's been...

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mantwi

296 posts in 493 days


#7 posted 166 days ago

I understand completely. I find it hard to back down from a challenge myself.

View ja6ke's profile

ja6ke

35 posts in 168 days


#8 posted 156 days ago

Yep, that center bolt is really stuck… I have tried kroil, leverage and some special magic words that I am not allowed to use around the kids to no avail. The opposite end in back is very loose and I haven’t run into anything else on the saw this stuck.

View Fred Hargis's profile

Fred Hargis

1642 posts in 1090 days


#9 posted 156 days ago

Brute force it (not something I usually suggest) Get a socket that fits the 3/8” hex head and a breaker bar. Be sure to brace the motor so the arm isn’t taking the brunt of it…..but that stuck bolt is the reason you can’t get the blade to 90º. One other approach, if you happen to have a Lisle impact tool that really work well on these stuck bolts. I bought one just to work on Dewalts, anyway the hammer action is much gentler than a powered impact wrench (which also might work).

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

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ja6ke

35 posts in 168 days


#10 posted 153 days ago

+1 for physics and brute force! Now does anyone have a recommendation for a dado set for the MBF?

View Fred Hargis's profile

Fred Hargis

1642 posts in 1090 days


#11 posted 153 days ago

Any of them will work as well on the RAS as they will for the RAS. I’ve used a Freud SD508, as well as a less expensive CMT set. All the dado sets I’ve seen have a negative hook to reduce their aggressiveness, which also makes them good for the RAS. Did you the blade to 90º once you broke the bolt loose? (A little anti seize on that bolt might be a good idea.)

-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)

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ja6ke

35 posts in 168 days


#12 posted 153 days ago

I did a rough alignment but ran out of “workshop” time. I plan to now go back and verify/readjust everything starting with the table and working my way through. That bolt definitely has some anti seize in it’s future.

I have really caught the bug now, these dewalts are wonderful in the simple but effective design. I keep watching CL in case another one pops up even though I have no need of a second.

Thanks for all the help.

View darthford's profile

darthford

532 posts in 521 days


#13 posted 153 days ago

I had the craigslist RAS obsession after I purchased my 1952 Delta, it lasted for about 6 weeks. lol

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