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Post by morerockspleaz on Nov 12, 2009 20:01:34 GMT -5
I really need some help please. The motor on my wet trim saw has gone out and I have looked at motors until my eyes are crossing. I do not know which motor to order or where to order from Here is what I have on the current motor. This is on an 8" saw. plate say's 1/4hp 1425-1725 rpm fr 48 type s reversable (I do have forward and reverse on the machine) 1/2 shaft (belt driven) continous run
What else do I need to find out about this motor? Do I need to go up in hp?
This motor has some age on it.
Thank you, morerockspleaz
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jcinpc
has rocks in the head
Member since April 2009
Posts: 722
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Post by jcinpc on Nov 12, 2009 21:21:21 GMT -5
tractor supply carries motors
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Post by morerockspleaz on Nov 12, 2009 22:19:18 GMT -5
Thanks will check online and see if I can figure it out.
morerockspleaz
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Post by Rockoonz on Nov 13, 2009 0:34:35 GMT -5
I really need some help please. The motor on my wet trim saw has gone out and I have looked at motors until my eyes are crossing. I do not know which motor to order or where to order from Here is what I have on the current motor. This is on an 8" saw. plate say's 1/4hp 1425-1725 rpm fr 48 type s reversable (I do have forward and reverse on the machine) 1/2 shaft (belt driven) continous run What else do I need to find out about this motor? Do I need to go up in hp? This motor has some age on it. Thank you, morerockspleaz The most important things for your motor are RPM, HP, and type. You can use 1/4 HP on a 8" saw, 1/3 or 1/2 is better. It must be a 1725 (+/- 25)RPM or you will need to change your pulleys to get the correct blade speed. It MUST be continuous duty. A reversable motor is one that can be wired for either direction. If you don't get one of these make sure the rotation is right for your saw before you get it. Also Capacitor start is preferable. You should make sure it will mount to your saw as well. If you know any HVAC people ask them if they have any motors from old systems, they usually do. Lee
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Post by catmandewe on Nov 13, 2009 10:36:28 GMT -5
www.surpluscenter.com/item.asp?UID=2009111309190974&item=10-2481&catname=electricYou can use this one, but you will need to change your pulley sizes. The frame is right so it will bolt right up, but it is a 3450 rpm motor. You either need to make the motor pulley smaller, or the blade pulley larger, or a combination of the two. The right rpm motor will put you over $150, this motor and a new pulley will be the cheapest way to go. Have a great day..............Tony
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Saskrock
fully equipped rock polisher
Member since October 2007
Posts: 1,852
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Post by Saskrock on Nov 13, 2009 19:06:08 GMT -5
Recycle. Go to your local heating/AC place and see if you can get an old furnace motor. Usually they will point you at the scrap pile and say go for it. Just make sure that you get a motor from a belt driven furnace fan. They will be 1725 rpm (maybe varible to 1425), continous run, and probably reversable, likely 1/3hp. Direct drive fans are faster and need air flow so they are no good. I have one on my saw, tumbler and flat lap. All were free.
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jimrbto
noticing nice landscape pebbles
Member since April 2007
Posts: 94
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Post by jimrbto on Nov 13, 2009 21:21:11 GMT -5
You might try "Surplus Center" almost all their motors are new and the staff is very helpful. See: surpluscenter.com. Cheaper. Jim
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rockhound97058
freely admits to licking rocks
Thundereggs - Oregons Official State Rock!
Member since January 2006
Posts: 760
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Post by rockhound97058 on Nov 14, 2009 1:23:06 GMT -5
When my motor burnt up in my vibra-lap I called lortone which was a complete waste of time. So I was faced to do shopping myself. I finally found a company called www.americanelectricmotors.com/ and spoke with Roy. I sent him a photo of my motor and all the specs, and he found something that came very close. Great service and fast shipping as well.
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Post by johnjsgems on Nov 14, 2009 10:04:40 GMT -5
You will likely find a 1/3 hp to be less expensive than the 1/4 hp. On an 8" saw you will need a 1725 (the other speed on yours indicates a two speed motor which you won't need). If you go the furnace motor route, make sure it does not say "continuous air over" as those use the air from th blower to cool the motor. You also won't need capacitor start. A PSC 1/3 hp, 115volt, 1725 will run in the neighborhood of $100-$125. Data plate should show a black and red lead with note "interchange black and red leads to reverse". Swamp cooler motors will sometimes work but are generally not reversible.
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