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Visitor

Re: CAT 3412C - Poor speed compensation on loading the engine

My ploblem is same almoust at load higher 420kw my engine
change rpm and frequency of my load .
Maybe some sensor?
Super Contributor

Re: CAT 3412C - Poor speed compensation on loading the engine

Sounds like you may have about 3% speed droop.

 

What is the complete engine serial number?

 

How much load was applied to result in the observed speed drop?

 

More information will get you better answers.

 

MikeL.

 

Visitor

Re: CAT 3412C - Poor speed compensation on loading the engine

So how did you decide this problem?
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Visitor

CAT 3412C - Poor speed compensation on loading the engine

I have CAT3412 - 1EZ Series , ECM

 

No load speed is 1520 RPM , When i load the engine , The speed decreased to 1440 and compensate to 1470 , Why it can't reach 1520 again ?