LumberJocks

Jointer Motor

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by Mark828 posted 03-18-2013 01:39 PM 624 views 0 times favorited 11 replies Add to Favorites Watch
View Mark828's profile

Mark828

92 posts in 586 days


03-18-2013 01:39 PM

Topic tags/keywords: question jointer

Through one of my mother’s friends I got a Harbor Freight 8” Jointer for free. Only problem is the motor doesn’t work. I suppose a broken one is better than none at all? Anyway, the man said the motor didn’t even start when he set it up. But He also said he kept the factory oil on for protection when there is a sticker clearly stating to remove it before use. So I finally got around to messing with it and here is what is happening at the moment.

- With the belt removed the motor starts and sounds like it reaches the max rpm but I must hold the on button down for it to stay on.

- With the belt on, it struggles to start and it spins relatively slow, it will also eventually trip the circuit breaker. and again the machine will not stay on with a push of the on button.

I’m pretty sure the motor is 115v so I don;t think a lack of power is the problem, but what do I know I’m just a kid. I’m not to keen with anything electrical or electric motors for that matter. If anyone has had a similar problem or think this is a no brainier fix ORRR the motor is now just a nice paper weight, It would be much appreciated.

Thanks,

Mark


11 replies so far

View Holbs's profile

Holbs

521 posts in 687 days


#1 posted 03-18-2013 02:00 PM

i’m pretty sure a on going circuit breaker trip on a motor spells disaster in the realm of the in wall circuit romex wire possibly starting a fire? We can assumethe motor circuit breaker will catch the issue… we can assume the circuit structure wire will catch the issue if the motor does not. that is alot of assuming.

View muleskinner's profile

muleskinner

674 posts in 1094 days


#2 posted 03-18-2013 02:16 PM

Sounds like it could be a 220v motor trying to run on 110v. Check for a nameplate on the motor.

-- Visualize whirled peas

View Mark828's profile

Mark828

92 posts in 586 days


#3 posted 03-18-2013 03:16 PM

its says, 110v, 18.5 amps, 2hp.

View poopiekat's profile

poopiekat

3634 posts in 2392 days


#4 posted 03-18-2013 03:31 PM

does the cutterhead spin freely by hand with the v-belt removed?

-- Einstein: "The intuitive mind is a sacred gift, and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift." I'm Poopiekat!!

View derosa's profile

derosa

1556 posts in 1493 days


#5 posted 03-18-2013 03:43 PM

I’d start by replacing the switch, the fact that you have to hold the on button to keep it running means that it isn’t properly creating the curcuit that the motor needs to run. Just because it runs while holding the button. Does’t mean that a circuit is created that will allow the jointer to fully draw off of the line. With an 18 amp draw to start with make sure you’re running it on a dedicated 20 amp line; it may not always draw 18, probably only does so at startup but it may get close enough to 15amp while working that it may regularly trip the circuit. Nonetheless, don’t try a nything till you’ve replaced the switch.

-- --Rev. Russ in NY-- A posse ad esse

View Mark828's profile

Mark828

92 posts in 586 days


#6 posted 03-18-2013 04:43 PM

That’s a good idea, it starts and locks every once in a while, which is probably still due to a faulty switch. would taking the switch apart and completing the circuit myself be wise before i order a new switch?

View derosa's profile

derosa

1556 posts in 1493 days


#7 posted 03-18-2013 05:38 PM

With electrical, if you have to ask i’d tend to lean towards no. Really it wouldn’t be easy since you would need to connect the ground and neutral wires just to be safe and would then be holding two live wires . Just isn’t the best idea. If you’re really curious just swipe the switch from something else and try it.

-- --Rev. Russ in NY-- A posse ad esse

View Mark828's profile

Mark828

92 posts in 586 days


#8 posted 03-18-2013 05:44 PM

ahh perfect. will take it right off my little old table saw. will try. Thanks

View runswithscissors's profile

runswithscissors

957 posts in 683 days


#9 posted 03-20-2013 08:00 AM

Could be the starter capacitor. Remove it and take it to an electrical shop, preferably one that does electric motors. They can check it for you. It’s a very inexpensive replacement—maybe $15 or so. Better yet, take the whole motorl

View Mark828's profile

Mark828

92 posts in 586 days


#10 posted 03-21-2013 03:08 AM

Yeah i might have someone look at it. Tried it with a new switch and it still wouldn’t get running at full rpm. Still sputters. I suppose it would be cheaper then buying a whole new one!

View Loren's profile

Loren

7571 posts in 2305 days


#11 posted 03-21-2013 03:58 AM

Yeah. Take the whole motor to a motor shop for a test.

Motors are pretty amazingly resilient inventions. Capacitors
go out and all, but the principles of how they work
are very proven and they last a long, long time when
set up correctly.

-- http://lawoodworking.com

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

Latest Projects | Latest Blog Entries | Latest Forum Topics

GardenTenders.com :: gardening showcase