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Jul 21st, 2025 | | | | Joined: Jan 2015 Posts: 22 New Guy | | New Guy Joined: Jan 2015 Posts: 22 | I'm having a heck of a time with my regulator. 6V system with typical cut out, voltage coil and current coil. As presently adjusted when the battery is a bit low it sends 30+ amps and torches my fuses. I've tried adjusting the regulator and the tiniest adjustment to the contact plates causes it to cut out and not charge at all. I usually have to re-polarize the generator after too. Any suggestions or should I just buck up for a new one? | | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | Are you adjusting the current regulator points behind the ARM connection? The cutout relay (behind the BAT terminal) should close at 6.5-6.75 volts, and the voltage regulator (behind the F terminal) should regulate max voltage at 7.5 volts against a fully-charged battery. The current regulator should operate at either 25 or 30 amps, depending on which generator you have. Setting the current regulator at 25 will work with either generator.
All adjustments will reduce slightly when the regulator cover is replaced due to better magnetic conduction, so make all the above adjustments very slightly higher than specified.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jan 2015 Posts: 22 New Guy | | New Guy Joined: Jan 2015 Posts: 22 | Thanks Jerry. Yup, I was trying to adjust the current regulator coil. Adjusting the contact plate out literally a millimetre drops my current output from over 30 amps to zip. Head scratcher. | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | You can't set the current reg. without a load on the bat. Either a load resister that comes with an ammeter or turn on all the accessories you can. It should get to the rated amps of the gen. & stop there. If it is too high it will fry the gen.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | I use the same carbon-pile load cell I use for testing batteries, but a field-expedient load tester can be made by wiring 4 headlights in parallel, with both beams burning at once and connect them directly to the battery posts. The idea is to create enough current draw to make the current regulator function long enough to get an accurate adjustment.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jan 2015 Posts: 22 New Guy | | New Guy Joined: Jan 2015 Posts: 22 | Regulator is toast. Would not adjust. Either 0 volts / 0 amps or 9V/30+ amps. Ordered a new one. | | |
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