installing a new drive belt on a DW735 planer

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Forum topic by HarleySoftailDeuce posted 01-26-2017 08:43 PM 1412 views 0 times favorited 6 replies Add to Favorites Watch
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320 posts in 3253 days

01-26-2017 08:43 PM

Hi guys & gals,

I’m trying to install a replacement drive belt on my DeWalt DW735 planer.

I’ve tried to turn the belt on with a 23 mm socket…to no avail. I’ve even heated the belt with an electricians heat gun…still can’t seem to get it on.

I also removed the 23 mm nut and drive wheel…and still not possible to get it on.

Hoping someone can give me some good advice to do it myself.

Thanks to all the guys and gals here on Lumber Jocks !!


-- Paul, Bristol,Rhode Island

6 replies so far

View Mark Shymanski's profile

Mark Shymanski

5621 posts in 3546 days

#1 posted 02-24-2017 11:31 PM

Is the difficulty in getting access to the pulleys or is a size or fit issue?

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

View pontic's profile


500 posts in 442 days

#2 posted 02-25-2017 12:08 AM

This procedure requires a special tool. Dewalt says to go to authorized service person. So good luck.

-- Illigitimii non carburundum sum

View HarleySoftailDeuce's profile


320 posts in 3253 days

#3 posted 02-25-2017 12:12 AM

I did not use any special tool. What I did do was clear off the bench of all tools etc….and clamped 2 sides of the bench with heavy duty wood clamps, then moved the planer against the corners where the clamps were.
Starting with the belt on the smaller gear…and putting my shoulder into it….I was able to turn the belt slowly and applied continuous pressure and the belt slowly went on the lower large pulley. Voila…that was it…just muscle is all one needs to get it on. Just don’t give up and follow my advice and you’ll also get it on ok.


-- Paul, Bristol,Rhode Island

View DrDirt's profile


4407 posts in 3576 days

#4 posted 02-27-2017 05:08 PM

This guy was changing to a Byrd Head… but at the 20 minute mark – he shows how he put the belt on. He put it on the pulley first, then installed teh pulley

-- “The two most important days in your life are the day you are born and the day you find out why.” Mark Twain

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320 posts in 3253 days

#5 posted 02-28-2017 11:54 PM

Easy when one follows my solution above.

-- Paul, Bristol,Rhode Island

View gmussell's profile


18 posts in 2180 days

#6 posted 12-11-2017 09:02 PM

The belt broke on my Dewalt 735. I could not find any good instructions on how to change it except for this post and another on a different board. I finally got around to doing it and I found what I thought was a very easy way to do it, so I thought I would post it and maybe help the next guy.

First part is just like changing blades, remove the top and the dust shoot. Then remove the thickness adjusting wheel and then the cover behind it. Inside the planner on the opposite side of the belt there is a safety switch, it looks like an L bracket with slotted holes, cut a 2 inch block of wood to hold it up so the blades can turn.

Then I removed the chain, one screw on each sprocket, then I removed the chain tensioner, one screw. Then I removed the small access cover over the small pulley, just turn the screw quarter turn and remove.

Now the new part. Put the belt over the small pulley, and then got the belt started on the bottom of the big pulley. Then I took my mini needled nosed vice grips and pinched the belt to the pulley, not hard, I did not want to damage the belt. Then I took a socket and turned the nut at the center of the pulley and the belt went right on. Easy Peazy. Of course it was not completely on I just put some inward pressure on the belt in front of the pulley and kept turning the nut and it worked its way on. I then noticed that it was hanging off the small pulley a little bit. Same thing, some inward pressure in front of the small pulley and keep turning the socket. Reverse the steps and put it back together.

I hope this helps, knowing what I know now the whole job won’t take 15 minutes next time.
If this is the “specialized tool” that the authorized service centers use, I got mine at Harbor Freight. Two pair for $5.


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