by KE4AVB » Thu May 10, 2018 6:26 am
Double check your wiring diagram. you probably find two fuses.
Fairly good chance if it has a 7.5 amp fuse in the main circuit. 7.5 amp is usually the protection fuse use in the electric clutch circuit in case the PTO draws more than 7 amps. These electric clutch can normally draw about 3-5 amps.
The system fuse is not the stator output rating but is the electrical load at start up plus 25-50 % overrating. Typically most mowers will have a 15 amp fuse through a few have 20 amp or larger. This is even on mower with the basic 3 amp stators. You got remember you got the stater solenoid, fuel solenoid, plus any additional loads pulling current through that fuse at startup.
Typically stators are not fused and only limited by their ability to generate voltage and current at the desired design levels.
Now if you do the correct fuse[s] in place then do a current draw test on both at start up and while running with the electric PTO engaged. I have seen electric PTOs to partially short and draw excessive current. I had them draw over 15 amps and still operated though it was causing a battery discharge.
Hopefully I didn't confuse the issue.
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