Replacing cutter heads - Shelix cutterhead in Dewalt 735

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Forum topic by chadsworkshop posted 08-25-2015 07:43 PM 692 views 0 times favorited 4 replies Add to Favorites Watch
View chadsworkshop's profile


3 posts in 1767 days

08-25-2015 07:43 PM

Topic tags/keywords: dewalt 735 shelix byrd spiral cutters

I had a cutter head explode on me in my Dewalt planer with Shelix cutterhead. I had to replace one cutter and turn about 10 others. I’m having the hardest time getting everything to sit correctly. It seems no matter what I do, I get ridges and grooves in my boards. Can’t get the flat result I had from using the cutter on day one. Anyone have any tips for setting blades in a Shelix?


4 replies so far

View Fred Hargis's profile

Fred Hargis

3844 posts in 1914 days

#1 posted 08-25-2015 08:05 PM

I’ve never had that happen…so this is more “thinking out loud” than anything. First I wonder if you really should have turned all of them, I suppose it’s possible the old ones have just a slight amount of wear that the new ones don’t (I see this as unlikely, but just a though). When I first got my Shelix, I had line runnning the length of the board. I removed every cutter, cleaned the saet, and re-torqued them in to the same spec (I think it was 45 in-lbs). That seemed to solve the problem…again, I see this as unlikely in your case….but just a though. Last, thinking through what caused that failure and could anything have happened to the balance of the inserts to cause the problem…just s though; and this may go back to rotating them all. Actually, that would have been a good idea anyway IMHO. Wish you luck and hope someone has some better ideas. Be sure to let us know if you find the solution.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Everett1's profile


213 posts in 1955 days

#2 posted 08-25-2015 08:11 PM

Agree with Fred; clean out under all the cutters.

Sucks, i did that when i installed my Shelix cutterheads in my planer and jointer. I used brake cleaner and a soft brush from harbor freight (came in the little 3 pack, one black, one brass, one steel bristles)

-- Ev in Framingham, MA

View Mark Kornell's profile

Mark Kornell

1057 posts in 1951 days

#3 posted 08-27-2015 03:50 AM

I’ve had a couple of the inserts in my planer (735/Shelix) explode, too. The first one I attribute to overtorquing and the second to some embedded dirt. Carbide is brittle and doesn’t take abuse well.

After the second fracture, I needed to rotate a number of inserts and experienced the same issue as the OP. Took of all the inserts, cleaned at each location with mineral spirits and a toothbrush, reinstalled. All was well.

The lesson I learned was that every time I need to rotate an insert, I also clean the insert and the mounting location well before reinstalling.

-- Mark Kornell, Kornell Wood Design

View Holbren's profile


3 posts in 424 days

#4 posted 08-27-2015 04:32 AM

The portable planer heads with their small diameters only have a few rows of cutters and accurate torquing of those cutters is very important. When rotating or replacing them make sure you use an inch pounds torque wrench and not just the hand tool that comes with the head. Also as stated, make sure the seats are clean to avoid the cutters sitting at different heights which is what causes the scalloping.

Here is a link to the factory cutter installation instructions.

Byrd Cutter install Instructions

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