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Table Saw not turning on consistently

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Forum topic by mramseyISU posted 03-20-2017 01:21 PM 223 views 0 times favorited 4 replies Add to Favorites Watch
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mramseyISU

524 posts in 1385 days


03-20-2017 01:21 PM

Ok I’m in need of somebody with some electrical knowledge. My Rigid R4512 table saw is starting to act up. When I flip the switch it’s not consistently turning on. I’m hoping it’s just the switch, since that’s $15 to replace, and not a motor. Any idea what to look for? I’ve got a multimeter and I’m not afraid to use it.

-- Trust me I'm an engineer.


4 replies so far

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dhazelton

2612 posts in 2136 days


#1 posted 03-20-2017 01:27 PM

Disconnect the switch. Put your meter anywhere on the ohms scale. Put the two leads from the meter on the two posts or lugs or pins or screws or whatever and turn the switch to ON and you should see the needle swing or see some numbers pop up. If nothing happens the switch is bad. If the switch is okay it may be the start capacitor in the motor.

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JCamp

476 posts in 390 days


#2 posted 03-20-2017 01:29 PM

Switch is the cheapest place to start. Turn the switch on and if the motor does NOT start then check the cord from the switch to the motor for voltage.. and what amount of voltage. If its the motor then you should be able to find a owners manual online for the specific motor and trouble shoot it from there… Hopefully it is just the switch though

-- Whatsoever thy hand findeth to do, do it with all thy might

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dhazelton

2612 posts in 2136 days


#3 posted 03-20-2017 01:29 PM

Disconnect the switch. Put your meter anywhere on the ohms scale. Put the two leads from the meter on the two posts or lugs or pins or screws or whatever and turn the switch to ON and you should see the needle swing or see some numbers pop up. If nothing happens the switch is bad. May just be some oxidation in it and shooting some WD40 or electrical tuner cleaner into it and working the switch off and on will get it going again.

If the switch is okay and you still have and issue it may be the start capacitor in the motor.

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dhazelton

2612 posts in 2136 days


#4 posted 03-20-2017 01:32 PM

Ignore my first post and read my second. Don’t know why I can’t delete my own comment made in error.

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