LumberJocks

capacitor testing

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by Karda posted 12-09-2017 04:48 AM 492 views 0 times favorited 12 replies Add to Favorites Watch
View Karda's profile

Karda

1277 posts in 695 days


12-09-2017 04:48 AM

need some tips, I want to test the capacitor on my wood lathe, there are a million videos on utube giving instructions on how to do so but they all use capacitors with bayonet type terminals mine has wires and the wires are not marked or colored. also how to you connect the point of the test terminal with the capacitor wire. Thanks mike


12 replies so far

View TheFridge's profile

TheFridge

10243 posts in 1627 days


#1 posted 12-09-2017 04:58 AM

Twist wire around probes. AC caps aren’t polarized like DC.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View MrUnix's profile (online now)

MrUnix

6918 posts in 2340 days


#2 posted 12-09-2017 05:04 AM

Yup… doesn’t matter if it has spade terminals or not. Hold them on the stripped back wires with your fingers if you need to. Put probes on each wire, watch meter. Reverse probes, watch meter. About as simple as it gets.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View Marshall1's profile

Marshall1

8 posts in 684 days


#3 posted 12-09-2017 01:32 PM

Disconnect from machine, discharge capacitor by connecting terminals to each other with insulated tool or another piece of wire. (This is a shock hazard) Check microfarad reading with multimeter compared to what is printed on outside of capacitor.

View Karda's profile

Karda

1277 posts in 695 days


#4 posted 12-09-2017 04:53 PM

ok

View hairy's profile

hairy

2764 posts in 3673 days


#5 posted 12-09-2017 04:53 PM

Take it to an auto parts store, or a repair shop. They will probably check it for little or no money. It’s a 1 or 2 minute job for someone that knows how.

Take some doughnuts with you.

-- My reality check bounced...

View Karda's profile

Karda

1277 posts in 695 days


#6 posted 12-09-2017 04:55 PM

thanks never thought of that

View Carloz's profile

Carloz

1147 posts in 732 days


#7 posted 12-09-2017 05:11 PM

Buy yourself a pair of crocodiles. Very handy for all electrical work.

View Karda's profile

Karda

1277 posts in 695 days


#8 posted 12-09-2017 05:58 PM

yea if I can find them, no radio shacks around here any more, not sure if they would work, the terminals on my tester are just a short point. Ill just have to fiddle thanks Mike

View Woodknack's profile

Woodknack

12369 posts in 2521 days


#9 posted 12-09-2017 06:32 PM

I thought you already replaced the capacitor.

-- Rick M, http://thewoodknack.blogspot.com/

View Karda's profile

Karda

1277 posts in 695 days


#10 posted 12-09-2017 06:39 PM

I replaced the capacacitor but there was no change the lathe still turns slow, I want to test to rule out the capacitor and verify the new one is working. I don’t think it is the capacitor because only the 2 highest speed don’t work

View hairy's profile

hairy

2764 posts in 3673 days


#11 posted 12-09-2017 07:40 PM

That only has 1 capacitor? If so, it’s good if the motor starts. It gives a boost on startup. there are start and run capacitors.

-- My reality check bounced...

View Karda's profile

Karda

1277 posts in 695 days


#12 posted 12-09-2017 10:08 PM

ok thanks

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com