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Frustrated with Dewalt DW734 dust collection

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Forum topic by FrankTuna posted 08-25-2018 01:50 PM 3329 views 0 times favorited 9 replies Add to Favorites Watch
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FrankTuna

7 posts in 526 days


08-25-2018 01:50 PM

I have a 2 HP Grizzly dust collector rated for 1700 CFM (but I get that’s not what will be measure at the tools). Even when my Dewalt 734 planer is the only tool hooked up with about 6-7 ft of 4” flex hose, I still get chips shooting out of the planer when working with anything more than 6”. Is there anything that might help? Bigger hose? Is it just the nature of this planer?


9 replies so far

View Gene Howe's profile (online now)

Gene Howe

12002 posts in 4040 days


#1 posted 08-25-2018 02:16 PM

Well, mine’s a 735 with a 4’ long, 4” hose connected to a dedicated 1 hp Delta DC and I get chips, too. Dunno if anything cheap and easy will totally eliminate that. I’m about to install a Shelix head. That might help.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

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bilyo

962 posts in 1714 days


#2 posted 08-25-2018 02:44 PM

I have a very similar setup except my flex hose is 6”. It collects virtually all the chips with no problem. Assuming your DC is working properly with adequate air flow, I’m thinking that perhaps the passageway for chip ejection inside the planer is partially blocked. Also, are you using the plastic dust chute adapter that came with the planer? Is it secure? I have had problems with the weight of the flex hose pulling the adapter out of alignment partially blocking the dust port. If all of that is OK, I would say that you need a larger hose.

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Rich

5157 posts in 1201 days


#3 posted 08-25-2018 03:11 PM

Make certain nothing is inhibiting the flow. The 733 and 734 were prone to clogging up occasionally. The only time my old 733 spit out chips was when it was blocked, or my DC was full.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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mel52

1213 posts in 876 days


#4 posted 08-25-2018 05:19 PM

I have a 734 hooked up to a dust deputy/16 gal 6 h.p.? Ridgid shop vac., with around 15 feet of hose. The only time I have trouble is when I have a partial plug in my line, which is rarely, or when my bucket gets fuller. I have noticed it might be more frequent when using sappy wood like pine, or if taking to much of a bite causing an excess amount of chips.

-- MEL, Kansas

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Gene Howe

12002 posts in 4040 days


#5 posted 08-25-2018 07:56 PM

I didn’t mean to imply that mine makes a habit of throwing chips. But it does occasionally. Thinking about it, it happens when its a larger chip and, maybe too heavy to get sucked up. Those knives are turning towards the front, while the vac attachment is at the back.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

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lew

12939 posts in 4367 days


#6 posted 08-25-2018 09:21 PM

I think the 4” hose might be part of the problem. With a 6” hose, my 735 rarely throws chips even with 10”-12” boards

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

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GrantA

2136 posts in 2019 days


#7 posted 08-26-2018 10:28 AM

My 734 did great with a 10ft 4” hose kinked up on the floor, you did remove the 4-2.5” reducer right? And make sure the chute is attached firmly, I either lost the original screw or it doesn’t come with one, I found one though and used it at the bottom of the chute.

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becikeja

1045 posts in 3425 days


#8 posted 08-26-2018 10:42 AM

I have a 90 degree elbow connected right on the dust chute that is connected to a 4” hose. The only time I have had a problem is when I had a clog in the line between the blades and the dust chute. Once cleared all was back to normal.

-- Don't outsmart your common sense

View Redoak49's profile (online now)

Redoak49

4359 posts in 2600 days


#9 posted 08-26-2018 11:53 AM

I have a 735 hooked up with a 4” hose and get no chips. While I get flows of 700 cfm connected to my cabinet saw, I only get 260 cfm hooked to the 735. The hose connection on it appears to be 4” but actually is only 2.5”.

The 1700 cfm referenced about is just baloney and probably only around 700 cfm. The numbers I mentioned are actually measured with a hot wire anemometer with a 5 hp cyclone. I would expect a 2 hp to be significantly less.

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