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Battery low power light comes on when mower deck activated

#1

K

Ken Cole

Mower operates fine but battery power warning light comes on when pto activated. Light does not come on when traveling, just when blades activate? Battery near new and charged between uses.


#2

B

bertsmobile1

Get some one to measure the volt at the battery, engine running, then engine running with blades engaged.
If it drops below 13V then the alternator or rectifier requires attention.


#3

C

cruzenmike

Ken Cole said:
Mower operates fine but battery power warning light comes on when pto activated. Light does not come on when traveling, just when blades activate? Battery near new and charged between uses.
Click to expand...

I had the same issue and it ended up being the rectifier. You will likely need to check the voltage going to the regulator fir to make sure that your alternator is working properly as well. Power off the alternator is in AC voltage and is usually around 30 volts if I remember correctly. A service manual for your engine will certainly give you all of the diagnostics you need to do before buying any parts but a simple AC/DC multi-meter will get you started on figuring out what is going on.


#4

K

Ken Cole

cruzenmike said:
I had the same issue and it ended up being the rectifier. You will likely need to check the voltage going to the regulator fir to make sure that your alternator is working properly as well. Power off the alternator is in AC voltage and is usually around 30 volts if I remember correctly. A service manual for your engine will certainly give you all of the diagnostics you need to do before buying any parts but a simple AC/DC multi-meter will get you started on figuring out what is going on.
Click to expand...

Thanks, that's what I suspected.


#5

K

Ken Cole

cruzenmike said:
I had the same issue and it ended up being the rectifier. You will likely need to check the voltage going to the regulator fir to make sure that your alternator is working properly as well. Power off the alternator is in AC voltage and is usually around 30 volts if I remember correctly. A service manual for your engine will certainly give you all of the diagnostics you need to do before buying any parts but a simple AC/DC multi-meter will get you started on figuring out what is going on.
Click to expand...

Thanks!


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