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Central Machinery Model #2146 manual/ pics of actual?

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Forum topic by parkerdog posted 399 days ago 1032 views 0 times favorited 16 replies Add to Favorites Watch
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parkerdog

24 posts in 465 days


399 days ago

Topic tags/keywords: bandsaw resource blade

A guy I know gave me one of these so I figure I can put some money into it and use it.

The current model they sell and the manual for it on the HF website shows the pulleys set up different than the 2146 I have so I was wondering if anyone had a manual laying around that they could scan or maybe take a picture of? Or even a picture of the motor and pulley setup of an actual 2146?

It was in the garage when my buddy moved into his house so he doesn’t know anything about it other than the name of the guy that gave it to him. (and it wouldn’t surprise me if he put it together backwards)

It might not even be a problem because I haven’t got my parts yet to put it back together but it looks like one of the slots isn’t being used so I thought I’d get some input hopefully.

Thanks


16 replies so far

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DIYaholic

12996 posts in 1281 days


#1 posted 399 days ago

Huh???
What is a “Central Machinery #2146”?

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procratination a bad thing?

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dschlic1

151 posts in 575 days


#2 posted 399 days ago

Central Machinery is a Harbor Freight brand. The P/N looks to be incorrect. The usual HF item number is five digits long. If you have the full P/N then you can get old manuals for the HF website.

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parkerdog

24 posts in 465 days


#3 posted 399 days ago

I don’t see a problem…... Made perfect sense to me. LOL I’m an idiot.

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MrUnix

466 posts in 805 days


#4 posted 399 days ago

Those were the model they sold back in the 90’s, and looks to be a typical Asian clone of the Delta:

I believe those were single speed machines while the newer ones are 4 speeds. What do you mean by ‘one of the slots’ not being used? Pictures would help :)

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

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distrbd

1019 posts in 1052 days


#5 posted 399 days ago

I have a manual very close to your model,it’s a pdf file,I can not download it here , don’t know how.
If you send me your email I’ll try to sent it to you that way.

-- Ken from Ontario

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parkerdog

24 posts in 465 days


#6 posted 399 days ago

“I believe those were single speed machines while the newer ones are 4 speeds. What do you mean by ‘one of the slots’ not being used? Pictures would help :)”

Some may be or maybe this is modified but it has three pulleys(one on the motor with multiple grooves, one above it with multiple ,and one on the lower wheel) on it and I’m sure their is a specific name for the grooves in the multi speed pulleys, I didn’t look it up so just called it a slot.

I’ll try to get some pics up tomorrow.

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parkerdog

24 posts in 465 days


#7 posted 399 days ago

Good old google!

After tinkering in the garage I’ve been researching and I found a post on another website where the guy is discussing his saw which is identical to mine.

He even mentioned the same difference that I noticed, the fact that the motor and saw pulleys are reversed on this model instead of like the newer current model. On the motor the smallest diameter step is next to the casing going larger on the way out and the saw pulley is big close to the machine and decreases diameter further away.

And this fact will probably be a pain because I need to replace the “saw pulley” due to a chunk being missing and causing a vibration I’m sure. I’ve sent an email to harbor freight tech service. Is there any other place that is known for replacement parts for saws? Or be able to cross reference?

Has anyone converted one back to single speed? In reality how often would I change the speed? I’m new to this so I really don’t know.

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runswithscissors

900 posts in 631 days


#8 posted 399 days ago

I don’t know how the pulleys are arranged on the newer HF BSs, but having the stepped pulleys mounted opposite to each other is the usual way in most applications. If both pulleys were oriented the same way, there would be no way to change speeds, but you’d have to have a lot of different length belts, and what would be the point? Of course, you still have to adjust for proper belt tension after you change speeds. But if you just want it to work as a single speed BS, simply try it out on several settings until you find one you like (run some wood through to see how it cuts), and leave it there.

As for replacing the broken pulley, you probably can find one at the local hardware store. Main thing is to be sure the bore for the shaft is correct. Could be metric, for one thing. Is that by any chance an aluminum pulley? Easy enough to bore it out if necessary, then file a new keyway.

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parkerdog

24 posts in 465 days


#9 posted 398 days ago

I know stepped pulleys are reversed from each other to make the different speeds. I guess I should have said reversed on this machine in orientation versus the newer model.
I’m not sure what drilling a bigger hole in a bad pulley would accomplish? But it’s not aluminum but appears to be a very grainy (poor?) cast iron.
Here’s a couple of pics to maybe help with the overall picture of the pulley.
Notice where the mounting bar is in relation to the biggest step. Newer models have the smallest step there which drives the wheel pulley above.

The chunk that is missing on this pulley is on the step that always has to have a belt on it to drive the wheel pulley above it. So, all the speeds are available, just they all will vibrate I’m guessing because I can feel where that spot is when I turn the saw by hand. (haven’t used it yet other than to make sure the motor worked)


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Bluepine38

2876 posts in 1691 days


#10 posted 398 days ago

Most step pulleys that are readily available are only 4 grooves wide, you just might be stuck with HF as your
only source of supply.

-- As ever, Gus-the 75 yr young apprentice carpenter

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parkerdog

24 posts in 465 days


#11 posted 398 days ago

Can someone post the formula for determining fpm speed with pulley size?

For economy sake I might try running the motor belt on the third step of the saw pulley and then run the short belt on the step next to the broken pulley up to the wheel pulley. That is if I can get enough adjustment out of the wheel pulley to make it line up.

Or should I just run one belt from the motor to the drive wheel skipping the broken saw wheel pulley? If so, anyone have some pulley dimensions to share from a single speed?

Is 3000 fpm a top speed to keep it under? A couple of websites mention that speed, and top speed on this one according to the newer manuals is 25XX something.

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MrUnix

466 posts in 805 days


#12 posted 398 days ago

Original Delta machines ran at approx. 2200 sfpm (2.75” motor pulley and 8” upper pulley). They later bumped it up to around 2900 sfpm (with a 6” pulley). I would not try to go past 3000 sfpm.

To calculate the speed, go here: http://vintagemachinery.org/math/sfpm.aspx

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

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parkerdog

24 posts in 465 days


#13 posted 398 days ago

You beat me to the post! I am a member of the owwm site and just happed to jump over to the other site and found that.

Now the question is——is it metric or sae shafts? I’ve got a generic digital micrometer that I never really trust to give correct answers.

Probably be the way to go wouldn’t it? just buy two new pulleys and skip the step saw pulley? I’m sure it’s a stupid question but do you lose torque or anything when you do away with the third pulley?

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parkerdog

24 posts in 465 days


#14 posted 390 days ago

So far it looks like I can just turn the motor pulley around and line it up with the wheel pulley. (fingers crossed, waiting on belt)

I’ve got the bearings I need and I’m waiting on the trunions to get here.

One more thing that I found was there seems to be some play in the shaft that mounts in the tensioner that allows the wheel adjustment. Replace or live with for now?

Also could someone tell me what delta this is a clone of so I could look around on parts sites for that piece?

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JustJoe

1554 posts in 644 days


#15 posted 390 days ago

Why not just use that pulley? You can cut or mill off the broken piece and make it a 4-groove.

-- This Ad Space For Sale! Your Ad Here! Reach a targeted audience! Affordable Rates, easy financing! Contact an ad represenative today at JustJoe's Advertising Consortium.

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