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Rick Moyer
09-11-2009, 2:16 PM
I noticed in the spec sheets that the G0690/0691 saws have 12.8 amps spec'd, as opposed to the 18a. listed for the 1023 series saws. I would think this would indicate a diff in actual HP even though all are listed as 3 HP. Would it make any real difference?
(I know, I could call, but I thought some of you may have an answer.)

Also, the 0690/0691 has a 14 gauge cord, as opposed to a 10 (or 12, can't remember).

Could be just info error, but may be of interest to those thinking about getting one of these saws.............Jim O'Dell, me ...;)

Matt Stiegler
09-11-2009, 2:22 PM
Interesting. Curious too.

This thread (http://www.sawmillcreek.org/showthread.php?p=1068836#poststop)compares the 690/91 and the 1023 in some other respects.

Rick Moyer
09-11-2009, 2:34 PM
Thanks for the link. I had read it before but that was when I knew I couldn't buy one so it didn't all sink in the old noggin'. the Muncy tent sale is tomorrow but I am a bit too laid up to probably go. Hope I don't miss out on something.

Curt Harms
09-11-2009, 7:55 PM
Thanks for the link. I had read it before but that was when I knew I couldn't buy one so it didn't all sink in the old noggin'. the Muncy tent sale is tomorrow but I am a bit too laid up to probably go. Hope I don't miss out on something.

According to the web site the PA. tent sale is Sep.19th.
http://www.grizzly.com/tentsale/tentpa.aspx

Rick Moyer
09-11-2009, 11:44 PM
According to the web site the PA. tent sale is Sep.19th.
http://www.grizzly.com/tentsale/tentpa.aspx

Hah! I guess the pain meds are affecting me! Thanks for the calendar lesson:o.

Rick Moyer
09-12-2009, 4:10 PM
No one knows?? I thought maybe someone with a 0690 or 0691 could check their machines. I can't get Grizzly CS until Monday.

Ken Fitzgerald
09-12-2009, 4:15 PM
Why don't you call Grizzly technical support and ask the question....or Grizzly sales people? They if anyone should be able to answer you questions.

Rick Moyer
09-13-2009, 4:52 PM
Why don't you call Grizzly technical support and ask the question....or Grizzly sales people? They if anyone should be able to answer you questions.
I can't until Monday, but I will.

does anyone know how far the rails can be moved on the 0690? I don't have room for 7' rails, trying to determine what will work best for me (sometime).

Rick Moyer
09-14-2009, 5:22 PM
I stopped into Grizzly this afternoon to see for myself. it doesn't appear that the G0690 rails can be moved without drilling/tapping new holes. Minor issue AFAIK.

The bigger question to me, and one I'm still not sure about, is if there is a difference in the power between the 1023 series motors and the G0690/691 Leeson motors. The spec sheets say 12.8amp for G0690 and 18 amp for the 1023's. Also the G0690 does have a 14 ga. cord as opposed to the 10 ga. cord on the 1023's. Both recommend a 20 amp circuit.
I spoke with a floor person (who I have dealt with before, nice guy) and he then called two different people (supposedly tech folks) regarding the different specs between these saws. One person said it may be a typo (amp draw), other said it was how the motors were wired. I'm not satisfied with these answers. I would like to know what the comparative HP is between these saws before I decide what I might want.
Is it possible that the one motor is that much more efficient/inefficient to make that much difference in amperage? Any EE's out there that can explain whether these motors can supply the same power?


On another note, the trunnions between the saws seem very similar as far as "beefy". The 0690 has a fan gear to raise the blade as opposed to the worm gear on the 1023's. This is in part due to the riving knife setup. I found no real difference in raising/lowering the blade mechanism between the saws. I also compare the three fences on the 0690, the 1023, and a Beismeyer on one of the saws. I like the Beismeyer the best, then the 0690, then the 1023. All were VERY similar, I just felt the surfaces of the Beismeyer would maintain their flatness better than the HDPE on the other two. Not a dealbreaker by any means. All rolled smoothly across the table.

Matt Stiegler
09-14-2009, 7:36 PM
Just looked at the motor on my 690, and it indeed says 3hp 12.8, as does the manual.

Rick Moyer
09-14-2009, 9:49 PM
I would like to know what the comparative HP is between these saws before I decide what I might want.
Is it possible that the one motor is that much more efficient/inefficient to make that much difference in amperage? Any EE's out there that can explain whether these motors can supply the same power?


After some online research I have partially answered my own question.

HP= V x I x EFF / 746

So assuming 3HP and same voltage, I x EFF would have to be equal for the motors to be equal. Therefore the Leeson motor would have to be 1.4 times as efficient as the one on the 1023 (12.8 vs. 18). In other words, if the motors on the 0690's are 70% efficient as compared to 50% efficient on the 1023's, then both saws would produce the same horsepower.

Now, does anyone know if this is true?
Is it plausible that one could be 50% and the other 70%?

Jim O'Dell
09-14-2009, 10:13 PM
Rick PM'd me about this subject. While typing a response to him, it made more and more sense that the 12.8 amp rating on the Leeson is correct. I have the Clear Vue Cyclone with the Leeson 5 hp motor on it, and the amp rating for it is 20.8. So that would make 12.8 for a 3 hp about right. Makes the 1023 motor at 18 amps sound suspect. Maybe that's where the typo is. Someone with a 1023 care to verify what is on the motor? Jim.

dan sherman
09-14-2009, 10:14 PM
I think you are dealing with some typos....

1023 manual page 8:
http://www.grizzly.com/images/manuals/g1023s_m.pdf

Under normal use, the motor draws approximately
12 amps at 220V.


0690 manual page 17:
http://www.grizzly.com/images/manuals/g0690_m.pdf

Amp Draw (G0690/G0691).................12.8 Amps

Rick Moyer
09-14-2009, 10:30 PM
Rick PM'd me about this subject. While typing a response to him, it made more and more sense that the 12.8 amp rating on the Leeson is correct. I have the Clear Vue Cyclone with the Leeson 5 hp motor on it, and the amp rating for it is 20.8. So that would make 12.8 for a 3 hp about right. Makes the 1023 motor at 18 amps sound suspect. Maybe that's where the typo is. Someone with a 1023 care to verify what is on the motor? Jim.
I looked at the 1023 on the showroom floor. the motor stamp says 18 amp.


I think you are dealing with some typos....

1023 manual page 8:
http://www.grizzly.com/images/manuals/g1023s_m.pdf

Under normal use, the motor draws approximately
12 amps at 220V.


0690 manual page 17:
http://www.grizzly.com/images/manuals/g0690_m.pdf

Amp Draw (G0690/G0691).................12.8 Amps
Dan, I went to your link to page eight above (it should actually be page 9 for the 1023S) and it doesn't say 12 amps at 220, it says 18 amps at 220.

I actually suspect the 18 amps is inaccurate and the two motors are close. I've read so much info lately that my head is spinning faster than a capacitor start/induction run 1750 rpm TEFC motor:p.
I don't suspect we'll get the real nitty-gritty, so I think I'll assume that they are close enough to not worry over it and choose accordingly.

dan sherman
09-14-2009, 10:59 PM
Dan, I went to your link to page eight above (it should actually be page 9 for the 1023S) and it doesn't say 12 amps at 220, it says 18 amps at 220.

Crapola...:o It's been a long day.

If you know the info from the lesson name plate, you can go to the lesson website and get lots of good info.

Rick Moyer
09-14-2009, 11:31 PM
Unfortunately I didn't closely examine the Leeson nameplate while in the store. It was underneath and i didn't crawl under to look, the floor sales guy did. Maybe someone with the 0690 will do that for us;).

Matthew Chamberlin
11-19-2009, 11:27 PM
That is odd. 240v, 18amps is quite a bit of power for a 3hp motor to using. I Think you will find most 3hp motors in this situation use under 15 amps.

12amps is a reasonable number for a 240v motor to be providing 3hp. I personally wouldn't worry about it.

-Matt

P.S. if anyone wants to send me a grizzly to test, I'd be more than willing to provide information on amp draw under load, start up, and what not......