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Messages - Onzlow

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Lister Based Generators / Re: Brush 7kva battery charging problem.
« on: November 21, 2018, 03:45:03 PM »
Hi Bob, thanks to your great advice I now have a working gen set again! I made a new pin and found that the no 2  contactor was not fully engaging at the top. Many thanks!

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Lister Based Generators / Re: Brush 7kva battery charging problem.
« on: November 20, 2018, 05:41:52 PM »
Hi Bob, I hope you are still with me! You are right!
I have at last managed to get round to looking at the solenoid, and what seems to be the problem is the pin below the contact bar, that is held on with a split pin, has worn down or broken so that it is no longer long enough to lift the contact bar and break the contacts on the high power solenoid.
I must admit I am a bit puzzled as to how this has got worn, anyway I can make another one. I assume it’s length is such that it sits just below the insulated pad on the contact bar.
I did notice that when I ran the generator and lifted the contact bar with a screw driver the voltmeter rose from a negative discharge to zero, which was good in that it showed the contacts were breaking, however I would have expected it to show a charge as the batteries should have been charging then. I checked the fuses in the box where the battery leads come in, they were ok, any ideas?

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Lister Based Generators / Re: Brush 7kva battery charging problem.
« on: November 04, 2018, 12:00:31 PM »
Bob, thank you for your prompt reply. Yes that makes complete sense as I have had problems with starting and had to operate the fuel cut of valve manually on occasions. It will be a few days before I can get round to fixing but I am very grateful for your advice and will let you know how I get on.
Regards
Onzlow

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Lister Based Generators / Brush 7kva battery charging problem.
« on: November 04, 2018, 09:43:45 AM »
Hello,
I have a ST2 Startomatic with a Brush 7kva generator . It has a 24v starting system.
Normally, after starting the generator will charge the two 12v starting batteries (24v) and the voltmeter will show a charge of about 2 amps depending on whether you switch to fast or slow charge. However the voltmeter now shows a discharge of 4 amps or more ( voltmeter only goes up to 4amps). This drains the batteries and the generator cannot then be started remotely. I suspect some contacts in the alternator are not releasing, so I would appreciate if someone can point me in the right direction.

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