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Tool Talk Discussion Forum

Re: Old PTO generator

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Author  [Modern View]

07-26-2013 09:17:27

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Bearings and seals from anywhere. Generic Voltage regulators from eBay. Brushes by mixing and matching until something is found. Slip rings can be lightly trued and cleaned in a lathe. If a stator or rotor winding is burned or laminations are loose. It"s scrap. I would not invest a whole lot unless you really know what you are doing. Each generator could be operated by a 10-12HP engine.

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Bus Driver

07-26-2013 10:24:59

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 Re: Old PTO generator in reply to buickanddeere, 07-26-2013 09:17:27  
It appears from visual inspection that each generator is 115 volts. The two are connected so that 230 volts is supplied to a NEMA 10-50 receptacle. The gear train synchronizes the two generators. Woe to the person who reassembles it and gets them out of "time". The voltmeter apparently reads only one generator as the scale stops at 150 volts- and the meter was broken. The only evident regulator was two small units that looked like transformers and I assumed that they were choke coils or similar. They were under a sheetmetal cover.
The nameplate on the unit had no Zip Code for the address-- so this unit probably pre-dates 1963. The seller had a well-used Kubota L2550 with non-operative PTO and we went to his neighbor who had a Ford 4000 with inoperative tachometer. But the Ford ran smoothly. Not sure if I will go look at the unit again. Located about 30 miles from me. It is possible that this was a premium quality unit- but I do not know. The absence of gear noise to boost from 540 to 3600 was surprising. That is one indication of quality.

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