Posted by JMOR on October 29, 2012 at 04:46:49 from (220.127.116.11):
In Reply to: 6 volt genny posted by curtsat15 on October 28, 2012 at 15:47:14:
Quoting Removed, click Modern View to see8N initial production through SN 137,684 used generator 8N10000A (3 brush) with regulator 8N10505A. When Service Bulletin #78 3rd brush removal was performed, the regulator was changed to 8N10505B.
At SN 137,685 the generator is 8N10000B (2 brush) with regulator 8N10505B.
At SN 263844, the distributor is moved to the side & generator 8N10001 moved to left side, with 8N10505B regulator.
At SN 308,455 the regulator changed to 8N 10505C (generator remains 8N10001). 8N10505B and 8N10505C regulators are electrically the same, but mounting is different.
8N10505B replacement applications are supplied with a mounting bracket such that the 8N10505C regulator will fit the older tractors.
8N10000A generators were 11.5 ampere output units using 8N10505A regulator.
8N10000A with 3rd brush removal AND 8N10505B regulator had, "materially increased amperage output".
8N10000B generators had 20 ampere output.
8N10001 generators were 20 ampere output units with either the B or C regulator.
Rick: would you do me a favor and measure the length of the cylindrical barrel portion of your 8N10000A generator (do not include the end plates in measurement). Also, wrap the tape measure around the barrel so as to measure the circumference. I thank you in advance for taking these measurements for me.
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