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All Replies on Dewalt 734 Planer - Roller Stops

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View GraceAndDrew's profile

Dewalt 734 Planer - Roller Stops

by GraceAndDrew
posted 10-27-2017 11:42 PM


21 replies so far

View Madmark2's profile

Madmark2

1719 posts in 1472 days


#1 posted 10-27-2017 11:57 PM

Lower the cutterhead 1/2 turn …

M

-- The hump with the stump and the pump!

View GraceAndDrew's profile

GraceAndDrew

45 posts in 1103 days


#2 posted 10-28-2017 12:10 AM

Sorry to be an idiot…how do I lower the cutterhead? I assume you mean something other than the main crank that lifts and lowers the entire assembly.

By the way it is both rollers that stop.

Thanks for the help!

-- Grace & Drew Woodworking, http://graceanddrew.com

View firefighterontheside's profile

firefighterontheside

21231 posts in 2741 days


#3 posted 10-28-2017 12:13 AM

Check the speed selector and make sure it is secure in one speed or the other.

-- Bill M. "People change, walnut doesn't" by Gene.

View GraceAndDrew's profile

GraceAndDrew

45 posts in 1103 days


#4 posted 10-28-2017 12:17 AM

Thanks Bill,
It is a single speed machine.
Mark

-- Grace & Drew Woodworking, http://graceanddrew.com

View firefighterontheside's profile

firefighterontheside

21231 posts in 2741 days


#5 posted 10-28-2017 12:23 AM

I’m sorry, I read 735 for some reason. I have a 733, which is just like yours but has one less knife. If memory serves, the cutterhead is ran by a belt, but the feed rollers are turned by a chain. I would suspect that there is problem with a Sprocket.

-- Bill M. "People change, walnut doesn't" by Gene.

View isotope's profile

isotope

177 posts in 2508 days


#6 posted 10-28-2017 12:37 AM

I’m no expert, but it sounds like there may be a problem with the “drivetrain” for the rollers. There is a set of pulleys and chains connecting the motor to the rollers. Maybe something is wrong with that. You’ll have to remove the gear cover to see them and that might be tricky. As a test, while the motor is unplugged, you could try to spin the rollers by hand. I’m pretty sure that when everything is functioning as they should, they won’t spin.

View GraceAndDrew's profile

GraceAndDrew

45 posts in 1103 days


#7 posted 10-28-2017 12:45 AM

Ok I think you guys are right. Yes, with the machine off and unplugged I can hand turn the rollers. So, something must be wrong with the sprockets or drive chain. I really don’t overload it so I’m not sure what happened.

Oh man like I need this. I suspect tomorrow will include a lost day of work and some cursing. I’ll let you know what I find.

Thanks,
Mark

-- Grace & Drew Woodworking, http://graceanddrew.com

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firefighterontheside

21231 posts in 2741 days


#8 posted 10-28-2017 12:50 AM

The fact that they turn until you put a piece of wood in suggests to me that the drive Sprocket is loose. It may be just a matter of tightening a set screw. If you have the manual, you may want to read and see if that will give you some info for tomorrow.

-- Bill M. "People change, walnut doesn't" by Gene.

View isotope's profile

isotope

177 posts in 2508 days


#9 posted 10-28-2017 01:00 AM

Here is a link to instructions for installing a Shelix head. It has some reasonably good pictures of the assembly, and might help you tomorrow.

View MrUnix's profile

MrUnix

8241 posts in 3083 days


#10 posted 10-28-2017 02:15 AM

I have seen quite a few people report that the drive gear is a weak point on those machines, as they only have a small ‘tab’ that engages the keyway to keep them from free spinning… and those have a tendency to break off, rendering them useless. I’m willing to bet that if you open up the machine, that is what you will find. Here is what the gear looks like:

Some people have opined that it is a good thing, as the tab will break off in the event of a jam or other situation where other more important parts can become damaged instead. They also suggest ordering more than one when you do replace the broken one, so you have one or more spares on hand for the next time. I just consider it a bad design. YMMV.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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GraceAndDrew

45 posts in 1103 days


#11 posted 10-28-2017 04:06 AM

You guys are awesome. I’ll take it apart tomorrow and see what the issue is. I’m sure I will be ordering a new gear…or two. Seriously I have not pushed this machine. I mean I run it a lot but I always take small bites.

Mark

-- Grace & Drew Woodworking, http://graceanddrew.com

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GraceAndDrew

45 posts in 1103 days


#12 posted 10-28-2017 10:51 PM

Ok…it was definitely a sprocket. The main drive sprocket had the tab completely sheared off. See the sprocket that has not tab in the middle…that’s the problem. Thanks for all the help everyone. I would have never thought to to take the planer apart and look for this.

Mark

-- Grace & Drew Woodworking, http://graceanddrew.com

View isotope's profile

isotope

177 posts in 2508 days


#13 posted 11-09-2017 09:51 PM

This is surely a long shot, but does anyone know if a version of that sprocket, with less teeth, is available? Ideally, I’d like to slow down the feed rate on my DW734 planer.

View AlaskaGuy's profile

AlaskaGuy

6113 posts in 3193 days


#14 posted 11-09-2017 10:04 PM

If you slow in down you “may” run the risk of burning the wood or at least burnishing the wood. I would imagine the speed was engineered to what it is for a reason.

It could be I know nothing. Something to think about.

-- Alaskan's for Global warming!

View isotope's profile

isotope

177 posts in 2508 days


#15 posted 11-09-2017 10:12 PM

It’s a good point and definitely something to think about. But, if the sprockets were available, it could be tested fairly easily and be reversible.
I have the shelix head installed in the planer. Not sure if that would make it more or less prone to burning. I just find that the planer is underpowered on wide boards and I have to take baby cuts. The shelix head aggravated this problem. My theory is that slowing down the feed rate would help.

View MrUnix's profile

MrUnix

8241 posts in 3083 days


#16 posted 11-09-2017 10:19 PM

I imagine it would be difficult given the weird sprocket arrangement (most have keyways, not those little tabs). Also, you would probably need to change more than just the one sprocket. My Makita has a ‘slow speed sprocket set’ that lets you do as described, but you have to replace three sprockets – as otherwise the chain would be too short..

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View Kazooman's profile

Kazooman

1540 posts in 2837 days


#17 posted 11-09-2017 10:30 PM

Very different beasts, but the Dewalt 734 and 735 both claim to have 15 amp motors, with three knife cutter heads running at 10,000 rpm. The 734 claims 96 cuts per inch at the nominal feed rate. The two speed 735 claims 96 or 179 cuts per inch. So, the speed of the 734 compares to the high speed setting of the 735. It would appear that you could slow the feed rate down on the 734 and avoid burning or burnishing, but the issues with chain length, etc. remain.

I own the 735 version and I usually have it set at the higher feed rate. I have used the slower feed when I am working with some difficult grained wood. I never thought of using it to allow me to take a deeper cut. Doubling the depth of cut and halving the feed rate gets you right back where you started from.

View GraceAndDrew's profile

GraceAndDrew

45 posts in 1103 days


#18 posted 11-10-2017 01:45 AM

By the way, it was actually pretty easy to fix once I had the parts. It was a good chance to clean everything as well. Runs like new!

-- Grace & Drew Woodworking, http://graceanddrew.com

View isotope's profile

isotope

177 posts in 2508 days


#19 posted 11-10-2017 03:33 AM



Doubling the depth of cut and halving the feed rate gets you right back where you started from.

I’m not really trying to go faster. Just trying to not over work the motor. But, now that others have mentioned it, I can clearly see that you can’t just change 1 sprocket without changing the chain.

View SweetTea's profile

SweetTea

478 posts in 1544 days


#20 posted 11-11-2017 01:00 PM



It s a good point and definitely something to think about. But, if the sprockets were available, it could be tested fairly easily and be reversible.
I have the shelix head installed in the planer. Not sure if that would make it more or less prone to burning. I just find that the planer is underpowered on wide boards and I have to take baby cuts. The shelix head aggravated this problem. My theory is that slowing down the feed rate would help.

- isotope

You have a Shelix head installed in a 734? I was not aware that a shelix or any other spiral cutter head was available for the 734. If you don’t mind me asking, how much does it cost for a shelix head for a 734, and how difficult was/is the install?

View isotope's profile

isotope

177 posts in 2508 days


#21 posted 11-11-2017 06:59 PM

I do! I bought it from Holbren for $423. It’s price is now ~$445. Installing was pretty straight forward, since I could simply follow the instructions (see one my previous posts above). The only tricky part was, after re-assembling everything, to adjust the cutter head to ensure that is was perfectly level with the base.

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