Motor For 103.23130

[Lago David]

am ready to give up on my original motor for my Craftsman Model 100. I spent hours and hours trying to do what I could to rebuild it. cleaning, replacing some brittle wires, bearings, etc. It starts and runs fine with no load but when I put the belt on it, it will not start, not even on the lowest speed. I can hand start it, but it will not start on its own. I guess the capacitor is weak and I don't there is much chance of getting a replacement.

I am ready to put a non-OE motor on it. Does anyone know what my choices are for finding a motor? Even a new one that will bolt on? Also, I imagine the original motor was put on multiple different machines if I knew what all to look for.

I just need a motor that runs now, even if it doesn't look original.

 

[Cruzan80]

Drill press, table saw, sander...? Sorry, but Model 100 doesn't narrow it down for most of us. Depending on where you are located, someone may have an OE replacement motor. Otherwise, match relative HP, shaft size, etc.

 

[RTM]

guess the capacitor is weak and I don't there is much chance of getting a replacement.

Capacitors are easy, finding the exact one* isn’t required, just needs to be in the right range.
*Unless you are going for a factory restoration

 

[Lago David]

Sorry, yes it is the 103.23130 drill press and I am in Santa Fe, TX just south of Houston. the issue is not finding appropriate HP and shaft size, but matching the mounting mechanism.

 

[Lago David]

Capacitors are easy, finding the exact one* isn’t required, just needs to be in the right range.
*Unless you are going for a factory restoration

the capacitor is not mounted on the surface like modern motors. It is a rectangular capacitor enclosed under the base.

 

[Cruzan80]

but matching the mounting mechanism.

Most motors in the 1/3-1/2HP range will also have the correct holes in the base, allowing it to be mounted on the motor plate. Alternatively, there are people who have put a new round capacitor in, and used a spacer to get the room between the bottom of the motor and the mounting plate. Occasionally, you can find replacements for the flat capacitors (it is harder).

 

[FrankLee]

Let's back up a minute...

Did the motor run before dismantling?
How confident are you that it was reassembled correctly? I've made many mistakes in the past assembling these Packard motors.

Craftsman Drill Press

Finally back working in the shed. I've started building my press-adjacent workbench, which got me looking at the press. The Headstock Lock Handle was mounted on the wrong side, causing interference between it, the feed handles, and an add-on power switch. One of the quill / feed handles was...

www.garagejournal.com

Did you install new bearings? If so, with extended inner race?

Any pictures?

You can also mount a capacitor remotely (inside the head) using a mounting bracket and end cap.

Pardon Our Interruption...

(you'll need to know the diameter of the new capacitor)

Pardon Our Interruption...

If you have to replace the motor, IIRC, you'll need a 56 frame.

Electric Motor NEMA Frame Table Chart Sizes

Standardized motor dimensions are established by the National Electrical Manufacturers Association NEMA

www.engineersedge.com

Emerson motors are a good replacement choice.

Craftsman Drill Press

DP#151 - Part 8 I refurbished the chuck this morning. This is a Ridgid Supreme chuck, model 6T33C. It was a little sluggish opening and closing, so it definitely needed dismantling. This chuck is very similar to a Jacobs 633C, but the procedure to dismantle is very different. It took several...

www.garagejournal.com

 

[Lago David]

Let's back up a minute...

Did the motor run before dismantling?
How confident are you that it was reassembled correctly? I've made many mistakes assembling these motors.

Any pictures?

If you have to replace the motor, IIRC, you'll need a 56 frame.

Electric Motor NEMA Frame Table Chart Sizes

Standardized motor dimensions are established by the National Electrical Manufacturers Association NEMA

www.engineersedge.com

You can also mount a capacitor remotely (inside the head) using a mounting bracket and end cap.

Pardon Our Interruption...

(you'll need to know the diameter of the new capacitor)

Pardon Our Interruption...

1. no it did not run properly prior to my "rework"; it smoked and it shocked me but at the same time it would run with a load attached. Now it does not smoke nor shock me but will not start under load. and no, I am not absolutely certain I reassembled it correctly. I found it really challenging.
2. What does IIRC mean?
3. I will have to think about that "inside the head" mounting. Drill and tap for the capacitor mount and then drill a hole for the wires to feed through into the base of the motor?

And, thank you.

Let's back up a minute...

Did the motor run before dismantling?
How confident are you that it was reassembled correctly? I've made many mistakes in the past assembling these Packard motors.

Craftsman Drill Press

Finally back working in the shed. I've started building my press-adjacent workbench, which got me looking at the press. The Headstock Lock Handle was mounted on the wrong side, causing interference between it, the feed handles, and an add-on power switch. One of the quill / feed handles was...

www.garagejournal.com

Did you install new bearings? If so, with extended inner race?

Any pictures?

You can also mount a capacitor remotely (inside the head) using a mounting bracket and end cap.

Pardon Our Interruption...

(you'll need to know the diameter of the new capacitor)

Pardon Our Interruption...

If you have to replace the motor, IIRC, you'll need a 56 frame.

Electric Motor NEMA Frame Table Chart Sizes

Standardized motor dimensions are established by the National Electrical Manufacturers Association NEMA

www.engineersedge.com

Emerson motors are a good replacement choice.

Craftsman Drill Press

DP#151 - Part 8 I refurbished the chuck this morning. This is a Ridgid Supreme chuck, model 6T33C. It was a little sluggish opening and closing, so it definitely needed dismantling. This chuck is very similar to a Jacobs 633C, but the procedure to dismantle is very different. It took several...

www.garagejournal.com

I reviewed your links and truthfully I am intimidated and overwhelmed. the only link I really understood was the one about the orientation of the switch and nameplate. And no, I do not have mine mounted in that direction. I thought I put it back the way I found it, but maybe not. My switch is on the right side, my "off" is up, and the name badge is on the opposite side of the switch. Can this make any difference in whether or not it starts though?

 

[FrankLee]

1. no it did not run properly prior to my "rework"; it smoked

That is often, but not always, an indication that the start windings and capacitor were not removed from the circuit after starting. I.e., the switch did not open.

and it shocked me but at the same time it would run with a load attached.

That's not good... a short.?

Now it does not smoke nor shock me but will not start under load. and no, I am not absolutely certain I reassembled it correctly. I found it really challenging.

I really can't determine if the motor is still good or fried.

2. What does IIRC mean?

if I recall correctly

3. I will have to think about that "inside the head" mounting. Drill and tap for the capacitor mount and then drill a hole for the wires to feed through into the base of the motor?

May want to hold off spending money on it.
Generally, if the capacitor is bad, you can start it by turning the rotor by hand.

I reviewed your links and truthfully I am intimidated and overwhelmed. the only link I really understood was the one about the orientation of the switch and nameplate. And no, I do not have mine mounted in that direction. I thought I put it back the way I found it, but maybe not. My switch is on the right side, my "off" is up, and the name badge is on the opposite side of the switch.

Yeah, that is not the factory configuration, but it should be fine that way.

Can this make any difference in whether or not it starts though?

No.

 

[Cruzan80]

Do you have a multimeter, and do you know how to check for continuity/resistance? That would help to tell if some of the windings shorted out or burned.

 

[RTM]

the capacitor is not mounted on the surface like modern motors. It is a rectangular capacitor enclosed under the base.

As others have noted, if you really want it to work, just drilling a hole or three can solve this problem. It won't look Factory, but it will work. If done well, it can still look good.

 

[Lago David]

Let's back up a minute...

Did the motor run before dismantling?
How confident are you that it was reassembled correctly? I've made many mistakes in the past assembling these Packard motors.

Craftsman Drill Press

Finally back working in the shed. I've started building my press-adjacent workbench, which got me looking at the press. The Headstock Lock Handle was mounted on the wrong side, causing interference between it, the feed handles, and an add-on power switch. One of the quill / feed handles was...

www.garagejournal.com

Did you install new bearings? If so, with extended inner race?

Any pictures?

You can also mount a capacitor remotely (inside the head) using a mounting bracket and end cap.

Pardon Our Interruption...

(you'll need to know the diameter of the new capacitor)

Pardon Our Interruption...

If you have to replace the motor, IIRC, you'll need a 56 frame.

Electric Motor NEMA Frame Table Chart Sizes

Standardized motor dimensions are established by the National Electrical Manufacturers Association NEMA

www.engineersedge.com

Emerson motors are a good replacement choice.

Craftsman Drill Press

DP#151 - Part 8 I refurbished the chuck this morning. This is a Ridgid Supreme chuck, model 6T33C. It was a little sluggish opening and closing, so it definitely needed dismantling. This chuck is very similar to a Jacobs 633C, but the procedure to dismantle is very different. It took several...

www.garagejournal.com

That is often, but not always, an indication that the start windings and capacitor were not removed from the circuit after starting. I.e., the switch did not open.


That's not good... a short.?


I really can't determine if the motor is still good or fried.


if I recall correctly


May want to hold off spending money on it.
Generally, if the capacitor is bad, you can start it by turning the rotor by hand.


Yeah, that is not the factory configuration, but it should be fine that way.


No.

Refer to my original post - the motor will run if I help it start with a little hand spinning.

 

[Lago David]

That is often, but not always, an indication that the start windings and capacitor were not removed from the circuit after starting. I.e., the switch did not open.


That's not good... a short.?


I really can't determine if the motor is still good or fried.


if I recall correctly


May want to hold off spending money on it.
Generally, if the capacitor is bad, you can start it by turning the rotor by hand.


Yeah, that is not the factory configuration, but it should be fine that way.


No.

yes per the original post, I can start the motor by turning by hand

 

[Lago David]

Do you have a multimeter, and do you know how to check for continuity/resistance? That would help to tell if some of the windings shorted out or burned.

the windings are good; the motor runs well if I help it start by hand

 

[Lago David]

yes per the original post, I can start the motor by turning by hand

A separate but related question. I have found a similar motor but it is 3/4 HP and 3450 RPM; so twice the speed. Would this make the speed too fast to use in metals?

 

[Lago David]

Let's back up a minute...

Did the motor run before dismantling?
How confident are you that it was reassembled correctly? I've made many mistakes in the past assembling these Packard motors.

Craftsman Drill Press

Finally back working in the shed. I've started building my press-adjacent workbench, which got me looking at the press. The Headstock Lock Handle was mounted on the wrong side, causing interference between it, the feed handles, and an add-on power switch. One of the quill / feed handles was...

www.garagejournal.com

Did you install new bearings? If so, with extended inner race?

Any pictures?

You can also mount a capacitor remotely (inside the head) using a mounting bracket and end cap.

Pardon Our Interruption...

(you'll need to know the diameter of the new capacitor)

Pardon Our Interruption...

If you have to replace the motor, IIRC, you'll need a 56 frame.

Electric Motor NEMA Frame Table Chart Sizes

Standardized motor dimensions are established by the National Electrical Manufacturers Association NEMA

www.engineersedge.com

Emerson motors are a good replacement choice.

Craftsman Drill Press

DP#151 - Part 8 I refurbished the chuck this morning. This is a Ridgid Supreme chuck, model 6T33C. It was a little sluggish opening and closing, so it definitely needed dismantling. This chuck is very similar to a Jacobs 633C, but the procedure to dismantle is very different. It took several...

www.garagejournal.com

Is this a start only capacitor? Or a start and run? and what capacitance range?

 

[FrankLee]

A separate but related question. I have found a similar motor but it is 3/4 HP and 3450 RPM; so twice the speed. Would this make the speed too fast to use in metals?

Yes.

Is this a start only capacitor? Or a start and run? and what capacitance range?

Most 115.6962 motors have start capacitors with 124-155 mfd rating. No run cap.

I usually order from Airstar Supply. USA made and free shipping.

Airstar Supply | Solutions for Today's HVAC Problems

www.airstarsupply.com

The 124-156 mfd will work.

The size is also listed for the end cap and bracket size.

 

[Dagny]

I bet I have more than one in my truck.

 

[Lago David]

I bet I have more than one in my truck.

one what? motor? flat capacitor?