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Dewalt 735 Knife Change

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Forum topic by SnowyRiver posted 880 days ago 1134 views 0 times favorited 10 replies Add to Favorites Watch
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SnowyRiver

51451 posts in 2076 days


880 days ago

Surprisingly it was only a couple of weeks ago I told someone on here that I have planed hundreds of board feet of hardwoods on my Dewalt 735 since buying it new and it was still on the original knives. I am in the process of building a hope chest out of hard maple, and boy is it hard. Its really been taxing my equipment. Anyway, I noticed that the planer wasnt cutting smoothly, although it wasn’t too bad, but the thing I did notice the most was the wood was moving much slower through the planer and sometimes I had a burn mark on it from the rollers slipping. This was very evident on the light maple wood.

Went ahead and flipped the knives over and walla…now it planes like new. The thing I did notice was how easy it was to change the knives and the instructions were perfect. Although it did take about a half hour (most of the time was taking out and replacing the 24 screws holding the three knives) the whole process was slick. The T handle allen wrench provided with the magnets in the handle worked great getting the knives out without having to use my fingers. I also loved the long wing nut screws that hold the dust shroud on. Long enough to get at them without having to reach way down into the machine to turn them. A great design.

I love this machine !!

-- Wayne - Plymouth MN


10 replies so far

View HorizontalMike's profile

HorizontalMike

6914 posts in 1509 days


#1 posted 880 days ago

I’ve got the Ridgid 13in model, but am rapidly finding out I TOO need to flip my knives. My planing is slower and I have developed at least one chip related ridge. I guess this is a “better” problem to have than other more serious issues that could have happened. ;-)

-- HorizontalMike -- "Woodpeckers understand..."

View syenefarmer's profile

syenefarmer

386 posts in 1676 days


#2 posted 880 days ago

It is amazing isn’t it how much better tools work after you’ve pulled a little maintenance on them.

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SnowyRiver

51451 posts in 2076 days


#3 posted 880 days ago

Yeah, the maintenance really makes a difference :-) I just want to keep working on something rather than doing machine work. But its necessary. Now it looks like my dust collector is full. Shucks, now I have to empty that…LOL Mike…I guess I was expecting to see lousy planing with dull knives, but it wasnt too bad…the big thing I noticed was the slow wood movement and then eventually the roller burns. The wood goes through there like butter now.

-- Wayne - Plymouth MN

View Scot's profile

Scot

344 posts in 1992 days


#4 posted 880 days ago

Like you I was very surprised at how easy the blade swap was the first time I did it. Some times somebody gets something right

-- If the old masters had power tools, they would have used them. So get off your damn High Horse.

View gfadvm's profile

gfadvm

10524 posts in 1285 days


#5 posted 879 days ago

Has anyone else made the observation that the planer gets MUCH louder as the blades become dull? Mine will hurt your ears when its dull and is quite tolerable when sharp. I also notice that the shavings get finer as the blades dull. I never think it’s time to flip/change blades until I’ve done it and notice the dramatic improvement. Be nice if a light came on and told you when to flip/change blades! How do the rest of you decide it’s time?

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

View JR_Dog's profile

JR_Dog

526 posts in 915 days


#6 posted 879 days ago

Wayne,

I’m the happy proud owner of the same machine. I’ve only put through about 100 board feet so far and noticed 1 very important thing with mine.. actually two now that I think about it… the first is the temperature outside; I see you live in Minnesota so I’m sure you’re fully acclimated with temperature swings but may have a heated shop which I don’t yet but I found that mine didn’t plane well at all in the colder temps. The second thing I noticed was it would sort of pause or skip too. I was going to flip my knives until I read that usually it’s not the knives its dirty rollers. I took some mineral spirits on a rag, raised the planer up so I could get my hand in, and wiped down the front and back roller… then flipped the switch for a second and turned it back off and wiped them again. I do this every 2nd or 3rd time I use it and it’s working much much smoother, no snipe, or tear out. I also heard that you should put the boards in at a 1PM to 7PM angle if at all possible. Anyway you may have already heard these tricks but if not I hope it helps you with not having to prematurely change blades too often.

View SnowyRiver's profile

SnowyRiver

51451 posts in 2076 days


#7 posted 879 days ago

I guess I havent noticed the planer noise as the blades dull. I usually wear ear muffs since its so loud anyway. I noticed if the blades are getting dull that it tends to pull the board in then the board shifts or turns as it goes through. Now that the knives are sharp again the board runs straight through. I havent tried turning the board and sending it through at an angle. If I am planing lots of boards say 6 inches wide, I put one through on the left side and the next on the right etc to hopefully extend the wear. I have never cleaned the rollers. It always seems to work fine when the blades are sharp so I havent messed around with them. And yes JR, my shop is heated. I usually have the temp at about 60 degrees when I am working in there or drying glue or finish. Otherwise I keep it between 50 and 55.

-- Wayne - Plymouth MN

View ShaneA's profile

ShaneA

5242 posts in 1194 days


#8 posted 879 days ago

I think I was most suprised by how much more quiet it is with a new edge. I think I waited too long, based on how good it was after the flip.

View madts's profile

madts

1229 posts in 935 days


#9 posted 879 days ago

To SnowyRiver. I guess you are not in Texas. Here we keep our shops between 100 and 110.

-- Thor and Odin are still the greatest of Gods.

View Gabe C.'s profile

Gabe C.

288 posts in 937 days


#10 posted 878 days ago

Just like with circular saws, sometimes you don’t notice that the blade is dull until you put a new one in. I love my Dewalt Planer. It is such a useful machine.

-- If I could just get this whole "Time/Money" problem figured out...

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