Dewakt 735 Problems

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Forum topic by kimosawboy posted 02-21-2018 08:20 PM 729 views 0 times favorited 8 replies Add to Favorites Watch
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179 posts in 3749 days

02-21-2018 08:20 PM

Just installed new blades in the 735, ran some maple thru and I am having lines/indents showing on the boards..
At first I thought it was just one of the machined screws that was not tightened down enough, pulled cover and re-tighten all.
Line was still there..I know how persnickety these machines are in regards to screw head height/blade so I pulled the screws that were close to the ’’line ’’ and ground down the heads a tad…and reinserted.
Line still there…. Raised the machine to full height and inserted the wood piece with a square on the line to see where it was ’’scratchine/catching…’, felt a burr on the furthest blade guard, filed down to smooth to the touch…Also checked the outfeed roller for any oddities and it felt fine.
Line still there..
Before changing the blades everything was fine, dull blades were the only reason I changed them out.
The line does not line up with the screw heads so they are ruled out.
The maple was clean and without impurities(sand/staples…)
The line can be felt with your fingers as well as visually.

Any ideas????

Thanks in advance
G Vavra

8 replies so far

View WhyMe's profile


1281 posts in 2339 days

#1 posted 02-21-2018 08:43 PM

Sounds like you have a nick in blades.

View Craftsman on the lake's profile

Craftsman on the lake

3342 posts in 4216 days

#2 posted 02-21-2018 08:52 PM

My 734 did that once but I decided I must have made a nick in the blade with something. Same lines on the same place on the wood each time. It was a tiny dimple so I continued to use the planer and sanded the line out easily when I sanded to finish off the wood. Annoying of course, particularly if the blades are fairly new.

I’d think that if your 735 has the same blade structure as my planer that they are reversible? If so, try to find the offending blade(s) and reverse it to see if that fixes the issue. Then deal with the issue next time you have to reverse the rest of the blades.

-- The smell of wood, coffee in the cup, the wife let's me do my thing, the lake is peaceful.

View johnstoneb's profile


3145 posts in 2951 days

#3 posted 02-21-2018 08:57 PM

All three blades will have a nick in them if it is leaving a mark you can see or feel. Move each blade left or right slightly so the nick doesn’t line up and that should take care of the problem.

you must of had som contamination on the first board thru after the knife change.

-- Bruce, Boise, ID

View pintodeluxe's profile


6159 posts in 3591 days

#4 posted 02-21-2018 11:25 PM

It happens all the time with stock Dewalt blades. If it leaves a raised ridge line on the board, it is certainly a nicked blade. I would move one blade left, and the other two right to see if you can overlap the nicked spot.

Otherwise reverse the knives and call it a $30 loss. Another option is to reverse just one blade. Normally I wouldn’t do that, but since the knives are basically new it should be okay. When you dull the knives again, reverse all three as usual.

I got tired of spending $60 on knives every time I went to Lowes so I upgraded to a Shelix head. Those carbide cutters go for miles.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View TheFridge's profile


10859 posts in 2264 days

#5 posted 02-22-2018 12:07 AM


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

View poospleasures's profile


857 posts in 3262 days

#6 posted 02-22-2018 01:13 AM

I also have a 735. I just installed a Shelix head. I now have a problem with a small (about 1/16” wide) raised line on all planed boards. It is like a blade nick on the reversible blades. It is raised only slightly and sands off easily. I tried to eliminate it by turning the 8 cutters which could have been causing this just in case one or more of them might have a nick which I could not detect. Have also cleaned feed rollers and waxed bed and tables. These actions did not help. Any suggestions would be appreciated. Tks

-- I,ve had amnesia for as long as I can remember. Vernon

View kimosawboy's profile


179 posts in 3749 days

#7 posted 02-22-2018 03:02 AM

Ended up pulling out the blades/blade holders and giving everything a full clean and that seemed to do the trick..
This is my 3rd 735 over the last ten years and usually I give a thorough clean after every second set of knives are used up. Since this was my second set I figured I had more time…guess not.
As to the Helix head… for me its just not worth it as this is my last Dewalt…the machines age getting cheaper in quality and more $$ every year… I will be moving up to a 24” old commercial planer in the future…
Thanks for the input….

View pintodeluxe's profile


6159 posts in 3591 days

#8 posted 02-22-2018 03:05 AM

Shelix owners: Be sure to blow out the sockets of your Shelix head before reinstalling the cutters. A little bit of sawdust can keep the inserts from seating fully. Also don’t torque them down with a wrench, just firm hand-tight with the supplied screwdriver is enough.

If that doesn’t correct the problem, try replacing a few cutters with the supplied spares.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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