SP-15 Motor Gear Box Issue

One of our SP-15 motors (Vandercook # 22155) quit last week. It has been noisy (our other SP-15 is about as loud as a sewing machine) but lately the noise was worse, and then the motor just stopped, smelling burned. The motor refurbishing place (Evans) tells me that there is a seal in the gear box that is leaking. He asked me if I could find out the model and serial number of the gear box (different from that of the motor). They can’t really fix that seal without it, they tell me. Does anyone know of a way to get this information?

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Enrique
11 years ago

That’s a great tip Katie! I’m glad it worked out for you!

Enrique
11 years ago

I want to add that my SP15 also has a Reliance motor and it’s similar to what Katie got installed in the sense that the speed reducer is what supports the motor. So I see no problem there. This has been a very exciting post to follow.

Lad Boyle
11 years ago

Katie

Glad to hear that the installation work.

Do you know the RPM output of the new gearmotor?

lad

Lad Boyle
11 years ago

Katie

I hesitate to comment about a plan to fix your press or question advise of a professional. But, i looked at the mechanical drawing you posted. I was bother by how the motor seems to be mounted by the gear box and not the motor. That will shift the weight. So i picked up the motor model number from the drawing and then googled it.

When i found it on the web, i noticed that its a DC motor and not a AC (110 volt) powered.

While looking around on the website, i found:

http://www.electricmotorwarehouse.com/Baldor/gearmotor/GC24003.htm

This motor “looks like” what I have and it’s mount is under the motor as mine is. That would make the weight distribution about the same.

There are several versions of this motor that have different RPM outputs and I don’t know which is correct.

You may want to ask the machine shop about DC v. AC and about how the motor mounts.

Again, I am NOT a machinist, an electrical engineer, vandercook expert, etc (acutally, I am an academic, translate as ivory-tower goofball), but I am still uncertain that the motor in the drawing is the right one.

Good luck

lad

I was bothered by what appp

Paul Moxon, Moderator
Admin
11 years ago

Katie, please take photos and tell us the motor’s model number. If this is the right solution, and I’m sure it will be, other SP15 owners will be grateful when their time comes to deal with this issue.

I’m helping in a couple of similar situations and am writing a synopsis of the various findings.

Lad Boyle
11 years ago

Katie

My motor is a Reliance Electric Gearmotor – like yours.

Its a 1/12th HP, but not much other useful info on the motor plate

The balancing issue that Paul raised concerns getting some, but not too much, upward pressure on the inking drum. If you will push down on the inking drum (when the carriage is rolled out to your right), you will see that springs are pulling it up. Thus, when the carriage is rolled back to the feedboard, the rear roller presses down on the inking drum and picks up ink.

When you modify the motor setup, you will want to place the new motor, etc so that the balance and pressure is not substantially altered. Note the the inking tray is hinged in the middle – to allow the up and down movement of the inking drum.

I suspect that Paul can do a better job of explaining the issue and how much the balance can change without altering the inking process.

The alternative is to switch to manual inking, which is not something that i want to go back to, but you could remove the inking drum, add a hand crank to the front roller and then be able to print without electricity.

good luck!

Lad Boyle
11 years ago

Paul

The motor and gearbox i installed were an original equipment motor and gearbox. Fritz had the entire powerinking system off of a SP-15.

If it will help, tonight, I can look at the label on the motor to see the mfg, power, etc info that is on the ID plate.

lad

Paul Moxon, Moderator
Admin
11 years ago

Lad: tell us more about the motor.

Lad Boyle
11 years ago

because the plate/tray for the motor is hinged in the middle, you should be able to place it on the plate so that the balance is not significantly altered and the roller can press the drum down when the carriage is at the feed board.

Paul Moxon, Moderator
Admin
11 years ago

A speed control device shouldn’t take up too much space by itself, but total weight shouldn’t be so much that the ink drum can no longer be pushed down by the cylinder.

Lad Boyle
11 years ago

Katie

last year i bought an SP-15 without power inking. I was able to buy from Frtiz (NAGraphics) the parts to add power inking and installed them myself. If you will search the archives here or on Briarpress, I told “my story.”

If u have not talked with Fritz, you should call him at 970 387 0212. I found that calling around 4:30 or so Mtn time is usually a good time. He’s such an interesting guy, I call and chat with him even when I don’t need anything.

If you have pulled the motor to be repaired, you should have seen that there is a lot of space on the plate that holds the motor. I would think that you have the space needed. As an alternative, you might look for a variable speed motor. As another alternative, there are devices, i think, that you can put in power cord that reduces the electricity flowing to the motor that slows it down. You will need to confirm that such a device won’t burn up the motor.

You may need a machine shop to help install the new motor on the plate that holds the motor. you want it firmly installed and it needs to line up very carefully with the inking drum.

removing the plate does require takiing the press partially apart. In particular, the back panel needs to come off. Because its heavy, raising the plate back into place is tricky. I lifted from the top and my wife stacked boards underneath until it was close enough to attach. we can talk if you get stuck on that part of the job.

hope this helps

lad boyle

Lad Boyle
11 years ago

You should contact Fritz Klinke at NAGraphics. He will know and may even have the seal you need.

good luck

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