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Generators In this forum we will try to answer any of your questions about the different model generators that can be found on Blue Bird coach's.

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  #1  
Old 07-31-2011
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PirateJohn PirateJohn is offline
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Default Amber light in middle of switch won't come on

My Perkins in an early PT-40 won't start. I have bled the lines and it seems like there is decent fuel flow, and the starter cranks the old girl with plenty of speed, but the amber light in the middle of the starter switch never comes on and when I release the starter the generator motor dies.

Any ideas?

Relay or fuse maybe?
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(and the required Wanderlodge bits: 1982 PT-40, full-timers, currently in the tropical paradise along the Tex/Mex border)
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  #2  
Old 07-31-2011
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is the start /kill cyl working
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  #3  
Old 07-31-2011
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how would I test that Woody?
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(and the required Wanderlodge bits: 1982 PT-40, full-timers, currently in the tropical paradise along the Tex/Mex border)
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  #4  
Old 07-31-2011
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with gen set out try and start it off the box on gen set

it will pull it in elec and engine run if u got fuel!
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RWoody
2003 LX Single Slide Hauling Wood 5
2 miles east from Texas Highway 37-97
Just a Hobby Shop now-Bird Repairs upon Appt and my Schedule -USAR Retired
Pleasanton Tx 78064
Do not use PM... please use
rwoody@fullnet.net
http://www.ebay.com/usr/woody19571

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  #5  
Old 08-01-2011
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Quote:
Originally Posted by PirateJohn View Post
My Perkins in an early PT-40 won't start. I have bled the lines and it seems like there is decent fuel flow, and the starter cranks the old girl with plenty of speed, but the amber light in the middle of the starter switch never comes on and when I release the starter the generator motor dies.

Any ideas?

Relay or fuse maybe?

--PirateJohn--
Hi Pirate John,

Are you saying it won't start at all or it starts but won't stay running?

If the generator starts and runs but doesn’t turn on the amber “run” light and then dies when you let off of the start switch, it sounds like your generator may not be putting out AC voltage.

Bad brushes, bad slip rings, bad voltage regulator, etc. are common causes of no AC output on 12.5 kW Kohler generators.
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  #6  
Old 08-01-2011
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Quote:
Originally Posted by Dieselbird01 View Post
Hi Pirate John,



Bad brushes, bad slip rings, bad voltage regulator, etc. are common causes of no AC output on 12.5 kW Kohler generators.
We have experienced all of the above problems plus an intermittent break in a wire in the harness & bad contacts in the cannon connectors. Drives you crazy.

Many of the people who service cell tower backup generators are one or two person operations & they have decent rates.
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  #7  
Old 08-23-2011
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Sorry that I haven't been around to follow up on this. Where can I find the voltage regulator, and is there a way to test it?
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(and the required Wanderlodge bits: 1982 PT-40, full-timers, currently in the tropical paradise along the Tex/Mex border)
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  #8  
Old 08-23-2011
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Hi John
It could also be the run solenoid located on the feft side of the generator enign one wire conneted to it
try tapping it lightly
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  #9  
Old 08-23-2011
markusfmeyer markusfmeyer is offline
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Start simple. What is the voltage on the gennie battery? If low, it will act as you describe.
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  #10  
Old 08-24-2011
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The battery has plenty of juice to crank the beast. If I use a screwdriver to hold the solenoid in place the diesel runs. However, when it runs it's not producing any electricity.

Are we back to the voltage regulator part?
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(and the required Wanderlodge bits: 1982 PT-40, full-timers, currently in the tropical paradise along the Tex/Mex border)
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