Home |
Search |
Today's Posts |
|
Woodworking (rec.woodworking) Discussion forum covering all aspects of working with wood. All levels of expertise are encouraged to particiapte. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
I've had this table saw for at least 20 years. Lately, it's
been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike |
#2
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
Michael wrote:
I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike Eliminate the source first? Try something with more or less the same output on the socket,give it a couple of days before assuming its the saw. -- Sir Benjamin Middlethwaite |
#3
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
"The3rd Earl Of Derby" wrote in message news Michael wrote: I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike Eliminate the source first? Try something with more or less the same output on the socket,give it a couple of days before assuming its the saw. -- Sir Benjamin Middlethwaite Well, I have many other things running off that outlet. Occasionally, my 2 hp air compressor will trip it, but nothing else. |
#4
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
"Michael" wrote in message ... I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Very likely the bearings are going and the motor is having to work harder trying to get up to speed. They can be replaced. Also possible that he bandsaw wheel bearings are causing the problem. Remove the blade and the wheels should spin freely. |
#5
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
"Michael" wrote in message ... I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike Swap the breaker out for a bigger one. |
#6
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
"Michael" wrote in message ... I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike Dull or dirty blade? |
#7
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
"Michael" wrote in message ... I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike Are you using an extension cord? If so, try a heavier one. Al |
#8
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
Well, I have many other things running off that outlet. Occasionally, my 2 hp air compressor will trip it, but nothing else. If the compressor is tripping it too you might have a bad breaker. Do you have another tool that can simulate the same load as the saw but stay just within the breaker's limits? Breakers are much cheaper than motors. OTOH, the motor in my old Craftsman started shooting craps at around 20 years. I had to replace the starting capacitor and internal switch and got another 5-6 years before it died. It never threw breakers unless I just bogged it down (easy with the 1hp motor). Eliminate the breaker before you start looking for motors. RonB |
#9
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
Blow the saw dust out of the motor
I have to do this to mine once in a while & my saw is 45-50 yrs old Michael wrote: I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike |
#10
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
Michael wrote: "The3rd Earl Of Derby" wrote in message news Michael wrote: I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike Eliminate the source first? Try something with more or less the same output on the socket,give it a couple of days before assuming its the saw. -- Sir Benjamin Middlethwaite Well, I have many other things running off that outlet. Occasionally, my 2 hp air compressor will trip it, but nothing else. I would 1st try a new breaker, that is, if the saw, once it does get going, works ok. Or, flip flop the breaker with another one of the same size in the breaker box. |
#11
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
Mike:
Shhhhh. Just between you and me, the local protectors of the newsgroup don't care for crossposters. Frankly I could care less, within bounds. RonB (I just noticed my outbound had two addresses) "RonB" wrote in message news:vwfMg.134835$LF4.21707@dukeread05... Well, I have many other things running off that outlet. Occasionally, my 2 hp air compressor will trip it, but nothing else. If the compressor is tripping it too you might have a bad breaker. Do you have another tool that can simulate the same load as the saw but stay just within the breaker's limits? Breakers are much cheaper than motors. OTOH, the motor in my old Craftsman started shooting craps at around 20 years. I had to replace the starting capacitor and internal switch and got another 5-6 years before it died. It never threw breakers unless I just bogged it down (easy with the 1hp motor). Eliminate the breaker before you start looking for motors. RonB |
#12
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
So you do care.
"RonB" wrote in message news:HJfMg.134837$LF4.111100@dukeread05... I could care less, |
#13
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
"Michael" wrote in message ... I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, First of all, you need to eliminate the breaker as a source of your problem. Breakers loose a little strength every time that they trip. Hence, over time, they will trip at a much lower current level. Testing the motor is not a simple matter. I suggest you take it to a motor repair place where they have tools adequate for the testing. Jim Mike |
#14
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
JP wrote: Blow the saw dust out of the motor I have to do this to mine once in a while & my saw is 45-50 yrs old Michael wrote: I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike I second this. My craftsman is 45 years old and occasionally starts throwing the breaker. Cleaning out the motor and adding some oil eliminates the problem for a year or two. |
#15
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
breakers get weaker as they are tripped. it's possible the breaker is
weak, or that the saw motor has accumulated alot of dust/grime in the housing that is causing lots of friction and drawing more power to rotate. check if the blade spins freely when not running to see if the motor is clogged. if the blade can wobble or shift on the shat then the bearings are shot. Empress2454 #124457 The best Games a href=http://www.gamestotal.com/Multiplayer Online Games/a a href=http://www.gamestotal.com/Strategy Games/abra href=http://uc.gamestotal.com/Unification Wars/a - a href=http://uc.gamestotal.com/Massive Multiplayer Online Games/abra href=http://gc.gamestotal.com/Galactic Conquest/a - a href=http://gc.gamestotal.com/Strategy Games/abra href=http://www.stephenyong.com/runescape.htmRunescape/abra href=http://www.stephenyong.com/kingsofchaos.htmKings of chaos/abr Michael wrote: I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike |
#16
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
Michael wrote:
I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike No one mentioned this, or asked these questions. Is it a 15A or 20 A circuit? What does the amperage draw on the motor label read? What else is on this circuit? Add it all up. It could be you just have an overloaded circuit. Have you added something new recently? |
#17
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
Michael wrote:
I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike Have you checked to be sure that the the motor pulley turns free? How about the saw blade arbor? Have you blown the motor clean with a compressor? |
#18
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
Michael wrote:
"The3rd Earl Of Derby" wrote in message news Michael wrote: I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike Eliminate the source first? Try something with more or less the same output on the socket,give it a couple of days before assuming its the saw. -- Sir Benjamin Middlethwaite Well, I have many other things running off that outlet. Occasionally, my 2 hp air compressor will trip it, but nothing else. If it has been tripped a number of times, the breaker is likely weak and needs to be replaced. I would suggest that you should consider a dedicated circuit as it appears you are overloading that one. -- Joseph Meehan Dia duit |
#19
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
efgh wrote:
"Michael" wrote in message ... I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike Swap the breaker out for a bigger one. Please don't use that joke, there are far too many people who would not notice the happy face. Don't replace a breaker with a larger one unless you have verified that the entire circuit will be able to handler the current and still meet code. -- Joseph Meehan Dia duit |
#20
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
On Fri, 08 Sep 2006 13:53:13 GMT, "Michael" wrote:
I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Too little information to really diagnose positively, but electric motors don't usually "wear out" slowly. When they fail, it's more in the nature of sudden, catastrophic, and terminal. The bearings might give out slowly, but normally you would have fairly obvious symptoms which you have not reported, mainly noise or a rough or gritty feel when turning the arbor by hand (unplugged! of course). Given that the motor is likely no more than a 1½ HP (typical for a home contractor type saw, even if it is a Sears and says more), and even wired for 120V and even run on a 15A circuit, it isn't likely to be tripping breakers with normal operation unless something else is going on (like additional load on the circuit--dust collection--or bogging down on cuts a lot, etc.). But again, not enough information. My first suspicion would be dust, especially after 20 years of use. I'd check the on/off switch, the centrifugal switch, even the capacitor. Blow it out thoroughly with compressed air and see how it does. Although the breaker might be the problem, and it's worth replacing for relatively few dollars, if you want to try it, they don't usually lose their effectiveness with just a few dozen trips--hundreds, maybe. What's your realistic trip count? Here's a tip from troubleshooting 101: have you added anything to the circuit that didn't used to be there, like a dust collector? It's easy to forget conditions that have changed since the last known trouble-free period. In any event, what else is on the circuit? As easy as that motor is to dismount from the saw, try taking it to a motor shop and get a diagnosis from them. Might cost you $30 or so, but you'll have a far more definitive answer than you'll get here. -- LRod Master Woodbutcher and seasoned termite Shamelessly whoring my website since 1999 http://www.woodbutcher.net Proud participant of rec.woodworking since February, 1997 email addy de-spam-ified due to 1,000 spams per month. If you can't figure out how to use it, I probably wouldn't care to correspond with you anyway. |
#21
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
I have an old Craftsman table saw of about the same age (1968). Mine
started to give me trouble several years ago. I took it to a small motor repair store. They cleaned the ancient sawdust from inside of the motor and oiled it. It has worked fine ever since. The reason I am posting is that on my motor there were no obvious places to oil it. The unit can be oiled at both end of the shaft. There is a small rubber plug that has to be removed. Added about 10 drops of oil once per year and replace the plug. wrote: JP wrote: Blow the saw dust out of the motor I have to do this to mine once in a while & my saw is 45-50 yrs old Michael wrote: I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike I second this. My craftsman is 45 years old and occasionally starts throwing the breaker. Cleaning out the motor and adding some oil eliminates the problem for a year or two. |
#22
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
Take the motor outdoors. Spray the berrings with trichlor, or some
other solvent. Brake cleaner is OK. Let it dry a few minutes, oil the berrings with zoom spout turbine oil. Two cycle mixing oil is OK if you can't find zoom spout. But the little bottles make life a lot easier. Let the flammable solvent dry out completely. reassemble, should work better. -- Christopher A. Young You can't shout down a troll. You have to starve them. .. "Michael" wrote in message ... I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike |
#23
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
turn off the suspicious breaker.
plug saw into a different working circuit. does its breaker behave? is cord or plug overheating in use? is cord brittle or in need of replacement for any reason? examine suspicious outlet. are plug prongs loose or held firmly as new? after replacing suspicious outlet receptacle, plug a 1500 watt electric heater into the suspicious circuit and reset it, and try the heater. if circuit behaves, try saw. if saw or heater trips only the suspicious breaker, replace breaker. Michael wrote: I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike |
#24
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
Is the motor clean and oiled?
-- ============================ Caveat to Yankee carpetbaggers: If you do settle in the South and bear children, don't think we will accept them as Southerners. After all, if the cat had kittens in the oven, we wouldn't call 'em biscuits. "Jim" wrote in message . net... "Michael" wrote in message ... I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, First of all, you need to eliminate the breaker as a source of your problem. Breakers loose a little strength every time that they trip. Hence, over time, they will trip at a much lower current level. Testing the motor is not a simple matter. I suggest you take it to a motor repair place where they have tools adequate for the testing. Jim Mike |
#25
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
What if the blade is getting dull as it may need sharpening......
On Fri, 08 Sep 2006 20:03:01 GMT, "George E. Cawthon" wrote: Michael wrote: I've had this table saw for at least 20 years. Lately, it's been tripping the breaker with greater frequency. I'm wondering if the motor is wearing out, or if I should check something else. Thanks, Mike Have you checked to be sure that the the motor pulley turns free? How about the saw blade arbor? Have you blown the motor clean with a compressor? |
#26
Posted to alt.home.repair,rec.woodworking
|
|||
|
|||
Dying Motor on Sears Table Saw?
you could check actual current use with a clamp in ampmeter
harbor freight has them for under 20 bucks very useful around the home |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
My epx on the infamous sears qualities (table saw) | Woodworking | |||
Need dimensions for Sears 113-197751 Radial Arm Saw table | Woodworking | |||
FA: Sears table saw & lathe | Woodturning | |||
FA: Sears table saw & lathe | Woodworking | |||
New bandsaw saga PartII (long) | Woodworking |