Vandercook SP-15 Won’t Start Up

I had my motor rewound last year, and after putting it back in the press, I noticed that the drum would stop rotating from time to time, and sometimes the press would not turn on, even though the light turns on. This week, it won’t start up at all even though the light switch turns on. I’m going to try to change the switch first to see if it’s a bad switch. I saw in another post that The Arm recommended an on/off toggle switch from McMaster Carr. Toggle Switch, DPST, Off-On, 15 Amps. And others mentioned that it should be 110v. And Paul, I saw that you said Grainger has comparable switches. I’m in a pinch for time since there is a project deadline, so I’m trying to find a switch locally. If it is 20 Amps. and 125v. would it still work?

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Ernst Schaefer
3 months ago

great, thats good news

Paul Moxon, Moderator
Admin
3 months ago

If the belt is a toothed timing belt, make sure it and the ink drum pulley is in good condition. Y can find timing belts on Amazon, Grainger, and McMaster-Carr. The industry part number is 180XL38.

Also please send me the serial number for the census.

Last edited 3 months ago by Paul Moxon, Moderator
Paul Moxon, Moderator
Admin
3 months ago

Loosen the bolts on the motor base and slide toward the ink drum.

Paul Moxon, Moderator
Admin
3 months ago

I agree with Ernst. The belt may be too tight. Please keep us posted on your progress.

Last edited 3 months ago by Paul Moxon, Moderator
Ernst Schaefer
3 months ago

i dont think its the toggle switch, but you can try it yourself, a 20 amp 125 would work as long as it is a dpst = double pole single switch, that means with switching you control 2 circuits at the same time, in your case it means 1 incoming hot line and 1 incoming neutral line to the motor the same contacts go to the control light. it needs a hot and a neutral to work.
as long as the light goes on i am sure the switch is working. my money is at the motor. either mechanical: the belt to the ink drum is to tight or for some reason the drum does not turn easily, or more likely your capacitor on the motor is shot. best is to bring it back to the shop that did the rewind job and they can bench test it. just my 2-cents, maybe it helps?

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