Question about Jugs Small Ball Pitching Machine

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I have a two wheel jugs machine used for junior little league. The wheels will not get up to speed...can you help me?

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I just fixed one with the same problem.
10 to 1 odd the brushes are stuck from sitting.
unplug unit.
take off the cover of the motor. 2 -7/16 nuts

there are 4 post one with black wire , white wire , ground and no wire.
you need to take off the two nuts on the one with ground and the one with no wire.
you can then remove the cover which will have the brushes inside.
once removed push the brushes in and out of the sleeve to loosen. spray with some liquid wrench or wd-40 and work back and forth. I took some steel wool and cleaned the copper where the brushes contact.
when you put it back together don't forget the scussion ring. it looks like a couple of potato chips put together. line up the slot on the casing with the nub on the perimeter of the brush housing,
slide it in while lining up the long screws with the holes in the housing. you will need to depress the brushes with a screw driver through the front hole , then slide it in . it will not go in the last 1/8th because of the scussion washer. tighten the nuts on the long screws and the gap will close. if you have the wheel off you can use a phillips screwdriver to hold the oth side , if not just hold the screw on the shaft with channel locks in the middle so you will be able to get the second nut started.

repeat on the other motor and you should be good to go

Joe

Posted on Mar 20, 2010

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First of all I must warn you of the dangers bench grinders can represent. Here in Britain no one connected with a business is allowed to carry out any maintenance on any none-portable grinding machine unless they have attended and passed a course on the subject and every employer must keep a register recording what maintenance has been carried out and by whom. Grinding machines have been responsible for many industrial "accidents".
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