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Delta 18" drum sander

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Forum topic by Kirb posted 10-04-2011 05:47 AM 2745 views 0 times favorited 7 replies Add to Favorites Watch
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Kirb

9 posts in 1894 days


10-04-2011 05:47 AM

I bought and older 18” drum sander at a gragre sale a few months ago. Aways wanted one I knew there was problems with the deltas, table not moving level. top heavy dc motor and switch. But I wanted to tinker with it as winter is getting closer in Idaho I will soon have some time to start on this was hoping for some advice from some other delta drum sander oweners and mods, fixes, repairs that has made them better

Kirb


7 replies so far

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Fred Hargis

3950 posts in 1960 days


#1 posted 10-04-2011 03:32 PM

I have one of the first models they sold, fortunately I’ve not had the problems that others have reported. You may not either. I would first get it tuned and try using it. But if you do have problems, there are a few things to check. One of the issues is that the gears that raise lower the table are plastic, and they break. When that happens, the gear with the broken tooth gets out of sequence with the other 3, and your table gets out of parallel with the drum. A loose tensioner (idler) on the cog belt that raise/lowers the table) can cause the same problem, it will skip a tooth on one of the gears, and you’re back to being out of square. A second common problem is the feed belt not tracking correctly. To be honest, the only solution is to keep trying to correct following the owner’s manual. A common mistake is to turn the tracking screws inconsistent with the procedure. You might want to start with a new belt right off the bat, they sometimes get stretched on one edge (from not following the manual adjustment routine), and when that happens no amount of tracking adjustment is going to correct it. Not exactly sure what you mean by “top heavy DC motor/switch”, so others may have some input on that. But the main drive motor does have 2 speeds for the drum, I would suggest you make sure the belts are set on the slower drum speed. One other thing I can think of is that some have had a problem with the sandpaper clips breaking. Only solution I can think of is to have spares on hand, but they are fairly expensive. Being cautious when you handle them is the advice I have. Be prepared for a learning curve. I have stopped using mine on anything but hardwood (no pine) due to belt clogging. This is hugely worse if you don’t have a good DC to pull the dust out of the machine. I’ve also stopped using belt grits finer than 150, and normally stay with 120 grit. The fine belts just get clogged too easily, and these things can run into the money. Finally, consider buying bulk belts and cut your own…larger outlay up front, but considerably cheaper in the long run. I know in my case I bought it to help an acquaintance out who needed the money….all the time thinking “what in the world am i going to do with this thing?”. Since then it has really earned it’s keep, almost every project gets some work done with it. But it’s not a finish sander, and you will have scratches to sand out. Just set your expectations accordingly.

-- Our village hasn't lost it's idiot, he was elected to congress.

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Kirb

9 posts in 1894 days


#2 posted 10-05-2011 03:58 AM

Fred,
Thanks for the information I wanted to say the machiine is top heavy and I was told the dc motors are weak.
I am looking forward to try it out. getting it tuned up.

Kirb

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Fred Hargis

3950 posts in 1960 days


#3 posted 10-05-2011 01:10 PM

I have read (once) about a DC motor failure, and maybe once about the switch circuity to the DC motor failing. I personally would not categorize them as weak….mine seems to have plenty of power for the job it does. It’s possible the “weak” moniker comes from trying to hog off too much wood…it will stall if you try cutting to deep. Being DC, it also has brushes that may need replacement. Do you have the manual for the one you bought?

-- Our village hasn't lost it's idiot, he was elected to congress.

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tenontim

2131 posts in 3211 days


#4 posted 10-05-2011 01:34 PM

I also had one of the earlier models. The only time I had problems with it was when I sanded boards wider than 18”. You can set the table to have a slightly wider clearance on the open side, but still it has a tendency to burn along the edge of the sandpaper. Set it up according to the manual and use it for 18” and less width boards and it’ll work fine. Don’t try taking too much off at once and slow the table speed down if it starts to burn the wood. I always left mine set on the slower drum speed, since it had more of a tendency to burn on the faster. Really hard wood like maple requires a lot of patience and light passes. I used mine mainly on oak. Finally traded up to a Woodmaster 38”, but the Delta did the job it was made for, within the 18” limit.

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Kirb

9 posts in 1894 days


#5 posted 10-06-2011 03:24 AM

I am sure I can make it work. The gears slip when you try and raise the table. the belt speed switch is not working. I will have the DC motor checked at work on monday. I do not have a owners manual I see one on Ebay checking to make sure it is complete. Will Delta sale parts or after market parts around?Kirb

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Fred Hargis

3950 posts in 1960 days


#6 posted 10-06-2011 01:35 PM

The belt speed switch not working can be an expensive problem. As I understand it, Delta still has all the parts…but they charge an arm, leg, and 2 fingers from your remaining hand for them. The best way to buy those parts is to get the part number (the speed controller is 406-13-626-0001) and google it as in Delta XXXX. Then you find that part number has changed to B&D 911609, and when I did all that found that toolpartsdirect.com has them for $53.35, where Delta might want twice as much. When checking that manual, be sure it has the parts list…those are separate pages. BTW, if you click my link, it goes to the sale price, then click the part number and it should show you an exploded view.

-- Our village hasn't lost it's idiot, he was elected to congress.

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Kirb

9 posts in 1894 days


#7 posted 10-07-2011 03:17 AM

thanks for the information I will check the # and make the order

Kirb

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