Forums | Home Repair | Home Improvement | Painting | Interior Decorating | Remodeling | Landscaping


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-01-2008, 02:35 PM   #1
Newbie
 
Join Date: Jul 2008
Posts: 8
Share |
Default

How to repair/clean centrifugal start switch


Hey all:

I have a single-phase electric motor that powers my air compressor. The motor trips the breaker after a few seconds as it does not start. I have replaced the start capacitor to no avail. I can use a non-conductor and manually close the circuit on the centrifugal start switch and the motor will run just fine. After a while the compressor will be at its designated pressure and the motor will turn off. Once I use some air and the motor tries to switch back on to recharge the tank, it then trips again.

So the problem seems to be that the motor's centrifugal start switch contact points are not meeting and closing the circuit.

Can I repair this switch or clean it somehow? I posted on another thread and was told that obtaining parts would be very difficult, especially for a 30 year old air compressor!

Attached are some photos for reference. The contact points are in the yellow boxes.
Attached Thumbnails
How to repair/clean centrifugal start switch-export-1.jpg   How to repair/clean centrifugal start switch-export-2.jpg  
pointertopica is offline   Reply With Quote
Old 12-02-2008, 10:40 AM   #2
Member
 
Join Date: Jun 2007
Posts: 3,502
Default

How to repair/clean centrifugal start switch


have you tried to lubricate the moving parts of the switch? Have you checked to see if the switch contacts are adjustable? If the motor starts with hand operation of the switch, it sounds like the switch springs or irons are out of adjustment or just need cleaning and lubricating. You can dress the contacts themselves with some very fine emory cloth. Just a little rubbing with emory cloth and blow it out real good.

Give me the brand and model. I may be able to help you.
J. V. is offline   Reply With Quote
Old 12-02-2008, 03:37 PM   #3
Newbie
 
Join Date: Jul 2008
Posts: 8
Default

How to repair/clean centrifugal start switch


The air compressor is a PUMA brand but it is 30 years old (made in 1987) and doesn't have a model number. I got this compressor 2nd hand for free as I am a college student and cannot afford to buy a new one. If you look in the photos you may be able to see the switch in the yellow box. There are two photos, one with the circuit open and another with the circuit closed. If you look at the start switch between the two photos, you will see how the parts should move to close the circuit.
pointertopica is offline   Reply With Quote
Old 12-02-2008, 05:51 PM   #4
Electrician
 
Join Date: Aug 2008
Location: Massachusetts
Posts: 105
Default

How to repair/clean centrifugal start switch


Quote:
Originally Posted by poindexternasty View Post
30 years old (made in 1987)
Has anyone seen my time machine?

I think I may have missed some years somewhere.
EBFD6 is offline   Reply With Quote
Old 12-03-2008, 07:05 PM   #5
Newbie
 
Join Date: Jul 2008
Posts: 8
Default

How to repair/clean centrifugal start switch


Hey, don't hate! It cost me ZERO dollars and I've only put $5 into it in the form of a new capacitor.

Hopefully I can get her working well and really enjoy something for nothing!

Oops.... should have been TWENTY years old, not THIRTY ha!
pointertopica is offline   Reply With Quote
Reply

Tags
centrifugal, compressor, motor, start, switch


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Replacing a bathroom fan switch cmacjr22 Electrical 4 11-04-2008 06:14 PM
3-Way Switch Wiring MrBill_DIY Electrical 8 09-07-2008 05:53 PM
old wire, backfed switch question Jack A. Trades Electrical 6 07-03-2008 11:05 AM
changing a fixture to an outlet - keeping the switch aweshucks Electrical 4 12-27-2007 05:06 PM
Basic Switch wiring question; Dimmer to Toggle switch (Pictures included) inspectator Electrical 8 08-07-2007 01:19 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.