Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Mechanical & Electrical

SFT Search:   
Reply
 
Thread Tools Display Modes
  #11  
Old 10-31-2008, 07:30 AM
OLD MAN's Avatar
OLD MAN OLD MAN is offline

2-3-1940 to 3-8-2011
Nobody was faster
 
Join Date: Apr 2008
Location: TEXAS
Posts: 12,577
Default

From post #2 try spinning and add power.
__________________
You do the best you can with what you've got.
Reply With Quote
  #12  
Old 10-31-2008, 08:13 AM
LW Hiway's Avatar
LW Hiway LW Hiway is offline
Lord of the Minions
 
Join Date: Jun 2005
Location: Fuck Lake Charles
Posts: 21,434
Default

O'man, that jogged a question I've had. Just how much rpm does an electric motor have to have before the run capacitor has the fun and the start cap is finished?
__________________
God, if you would grant me one request through Prayer, please help me be the Man my Dog thinks I am. Please.

Quoting "The Hunt". "A man will walk into hell with both eyes and arms wide open. His dog will know better."

I never thought I'd live long enough to become a grumpy old bastard. Here I am, killing it!
Reply With Quote
  #13  
Old 10-31-2008, 10:08 AM
Bender's Avatar
Bender Bender is offline
One Lone Sub
 
Join Date: Nov 2006
Location: Nampa, ID
Posts: 5,067
Default

Quote:
Originally Posted by Cutter
Wayne blew the sawdust out of the starter switch
Ohh, thy cruel irony.




Good luck Tommy. Don't know if it helps but I have the same motor on mine.
__________________
Boise Paint Contractor
Facebook
How fortunate we are!
Reply With Quote
  #14  
Old 10-31-2008, 10:09 AM
Lu47Dan's Avatar
Lu47Dan Lu47Dan is offline
Connoisseur of Old Iron
 
Join Date: Mar 2006
Location: N/W Pa.
Posts: 6,026
Default

Tommy , the motor on my table saw hummed also turned out to be the switch itself . The cap was good but the contacts in the switch were bad . Dan
__________________
Tools to Men are like Shoes to Women , you can never have too many !!
Used diesel engines are an adventure anyway you look at them !!
Miller XMT-304 Multiprocess
Miller 10-E Wire Feeder
Miller Spectrum 2050 Plasma Cutter
Hobart AC/DC stick welder
Hobart 175 Mig
Craftsman O/A set
Turbo torch and B-tank
Reply With Quote
  #15  
Old 10-31-2008, 10:50 AM
boilerman's Avatar
boilerman boilerman is offline
SFT Brewmaster
 
Join Date: Jun 2004
Location: Marshallville,Ohio
Posts: 3,360
Default

Quote:
Originally Posted by TommyA View Post
I get 122 volts at the motor on both posts so the switch is working. It is 230 Volt motor however I'm not sure of the HP. .
the HP. rate of SPL is just some marketing BS....it is a 5 HP motor
amps x volts=3300....divide by 745= 4.43hp.....5hp for 220volts
amps x volts=3600...divide by 745=4.83hp....5 ponies in it for 240volts
__________________
Director of Recruitment, Overseas (by appointment)

I don't suffer from insanity...I enjoy every minute of it
---------------------------------------------------
Reply With Quote
  #16  
Old 10-31-2008, 10:54 AM
GWIZ's Avatar
GWIZ GWIZ is offline
SFT Historian
 
Join Date: Feb 2006
Location: USA
Posts: 7,423
Default

Quote:
Originally Posted by TommyA View Post
I get 122 volts at the motor on both posts so the switch is working. It is 230 Volt motor.
Ok. but are you reading 240 across the lines/wires ?
Reply With Quote
  #17  
Old 10-31-2008, 02:48 PM
TommyA's Avatar
TommyA TommyA is offline
Director of Product Reviews
 
Join Date: Oct 2006
Location: Georgia
Posts: 1,516
Default

Quote:
Originally Posted by GWIZ
Ok. but are you reading 240 across the lines/wires ?
I'm getting 123 volts on each side coming from the switch but I don't get a reading when connecting to the two side at the same time. I don't think that I should. Should I?

LW according to the Pentek page you so graciously provided the motor once reaching operating rpm should disconnect the start capacitor and use the run capacitor. so it looks as though I need to spin it at 3400 rpm to see if it will run off the run capacitor. Spin Spin

I'm disassembling the drive belt right now.
__________________
What Would Jimmy Buffett say?

Mother, mother ocean, I have heard you call,
Wanted to sail upon your waters
since I was three feet tall.
You've seen it all, you've seen it all.

Last edited by TommyA; 10-31-2008 at 03:05 PM.
Reply With Quote
  #18  
Old 10-31-2008, 02:59 PM
GWIZ's Avatar
GWIZ GWIZ is offline
SFT Historian
 
Join Date: Feb 2006
Location: USA
Posts: 7,423
Default

Quote:
Originally Posted by TommyA View Post
I'm getting 123 volts on each side coming from the switch but I don't get a reading when connecting to the two side at the same time. I don't think that I should. Should I?
One line is open.
Your just getting what comes around thru the motor and back to the other line.
Assuming your checking from ground.

If your motor is wired for 230 you should get 240 across the two wires.
Like I said in my first post reset your TWO breakers first !
Reply With Quote
  #19  
Old 10-31-2008, 03:34 PM
cutter's Avatar
cutter cutter is offline

12-29-1943 to 1-17-2020
Curmudgeon emeritus
 
Join Date: Jun 2004
Location: Lubbock,Texas
Posts: 33,110
Default

Yes, you should be getting 240-something across the motor leads.

If the breakers are passing 240v across the lugs then I'm betting the pressure switch has a bad contact.
__________________
cutter
Housekeeping Staff: the Gatekeeper
Director of Policy, Syntax and Grammar (by appointment)

"Dr. Chandran, will I dream?"

Just Keep Walking

"I am not a body, I am free.
For I am still as God created me."
Reply With Quote
  #20  
Old 10-31-2008, 04:46 PM
Photomask's Avatar
Photomask Photomask is offline
Big Stone
 
Join Date: Jul 2006
Location: Deepinahearta Texas
Posts: 3,371
Default

Smack the switch roughly with a screwdriver handle. You may have a bit of carbon buildup preventing the switch from making good contact.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 06:33 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.