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To get it to motor...

Mike Schweikert

Subscriber
Age
54
Last Subscription Date
07/09/2019
Checking my self here....

For my Western Electric light plant. I want to motor it over without the piston cylinder or switchboard on it.
I have 4 leads.

1. Series field
2. Gen positive
3. Field
4. Gen Neg

I think I connect Series field and Gen positive to positive battery
and Field and gen neg together to neg battery. to just turn it over as a electric motor.

I made new brushes for it, and the field does magnetize when hooking just that and the series up by themselves on the battery.


Sound about right??
 

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Mike Schweikert

Subscriber
Age
54
Last Subscription Date
07/09/2019
Re: To get it to motor... Western Electric Light plant

DUH

Yes, if you put them the way it calls for to connect to the battery, it does indeed motor over just fine. That tells me the windings are good, field coil is good and my brushes work too. I just had to study it more carefully. I made the brushes from NOS Helwig Carbon brushes off ebay that were 5/8" by 1" by 1 3/4" long. The originals are 5/8" by 5/8" by 1 1/4". Used a fine hacksaw blade by itself and cut the brushes to approximate size, then sanded down to get the right fit in the brush holders.

It was very stiff even with no cylinder, rod, piston and crankcase end with cam and governor.. It uses splash lube from the con rod dipper which collects in a small box on the crankcase wall that has a tube that drains to another reservoir again on the crankcase wall above the bearing that oils the main bearing. The main bearing drains through a tube with a check valve on it to not let crankcase pressure stop the flow through the tube. I cleaned that bearing as best I could by using brake clean and WD40 to flush it through both from the top then the tube without the check. The checkball was frozen too, but freed up. I keep filling the reservoir and then spinning over and see it work its way through to drain. Only 24 volts on it so far, but no problem pulling it over. Amazing how much torque these shunt wound generators have.


The generator end has a reservoir that holds oil that uses a brass ring that rides on the shaft and split in the bearing. It picks up oil by the rotating ring and it falls on the shaft and the split in the bearing to lube it too.


Dave Reed did the piston for me, machined out the pins and did new rings and spacers. Should work just fine.
 

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Last edited:

Junkologist

Subscriber
Last Subscription Date
12/28/2019
I’ve always thought those washer/ring oilers were such a clever idea! Is that why a washer is called a washer?? Washes oil onto the bearing?? Hmmm:shrug:
 
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