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Sweeny Todd

Lister Petter 5kva genny - No output

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Hi

 

My genny (Lister Petter 5kva) has worked perfectly for the past year or so, however, yesterday the genny still fired up but it wasn't generating power. I plugged my grinder in and it ran really slowly. I plugged the digital radio in and it power that.

 

Any suggestions on what might be the issue before I start taking it to bits?

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I don’t know too much about the alternator on your genny but I’ve fixed a number of smaller petrol ones and the usual culprits are brushes and voltage regulators.  Both of which take minutes to change and cost a few quid from the internet auction site of your choice, although might take a while if coming from China 

 

I would start by Looking at the brushes some one will have put a video up on you tube showing how 

 

good luck

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On 01/05/2018 at 15:58, Sweeny Todd said:

Checked it again this morning and it is showing no output voltage.

AC or DC voltage?

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On 01/05/2018 at 15:58, Sweeny Todd said:

Checked it again this morning and it is showing no output voltage.

 

There must be something in the way of output voltage or it would not make your grinder run 'really slowly'. 

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Just now, Mike the Boilerman said:

 

There must be something in the way of output voltage or it would not make your grinder run 'really slowly'. 

And - it powered his digital radio.

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