LS180 Charging Problem

[B.Mo315]

So my LS180 has me stumped... It's just not charging. I've replaced the alternator with a brand new one from my New Holland supplier...also has a new battery from Fisher auto. All terminals were cleaned. The in-dash volt meter is showing fluctuations between 9.8v and 14.2v. There's days when its better and stays closer to 14-12ish but lately its been hovering between 9-11 and now its more like 9.8. setting the idle higher or lower seems to have little effect most times. When I replaced the alternator...it was already remover prior to my acquiring the skidsteer. I figured where it went and hooked it up (I'm and auto mechanic of 5 years...I know what I'm doing)... so my thinking now is could the pulley size be incorrect? what governs the voltage regulator in the alternator? or where should I start poking wires? Thanks!

 

[mfyock]

Did you measure the voltage at the battery with the machine running and charging? I have had many LX/LS skidsteers that the dash voltage shows low but they run/start and drive just fine. I have one right now that the dash shows 5 volts when you turn the key. Machine cranks and fires right up...

 

[B.Mo315]

Did you measure the voltage at the battery with the machine running and charging? I have had many LX/LS skidsteers that the dash voltage shows low but they run/start and drive just fine. I have one right now that the dash shows 5 volts when you turn the key. Machine cranks and fires right up...

i know its not charging because i have to jump start the thing every time

 

[R0vila]

i know its not charging because i have to jump start the thing every time

I got the same problem , how do you fix it?

 

[BijouHills54]

Check if you have voltage to the resistor below fuse box in engine compartment you will hve 12 volts on one side and about 8-9 volts on other side and I think its the the yellow/dark blue wire on alternator with female spade end I had and LX885 that would not charge and the
yellow/dark blue was open from the round Duetcsh plug under fuse box I ran a new wire from it to alternator from plug and voltage when running should be 13.6-14 volts depending on charge of battery.

 

[^Space^]

So my LS180 has me stumped... It's just not charging. I've replaced the alternator with a brand new one from my New Holland supplier...also has a new battery from Fisher auto. All terminals were cleaned. The in-dash volt meter is showing fluctuations between 9.8v and 14.2v. There's days when its better and stays closer to 14-12ish but lately its been hovering between 9-11 and now its more like 9.8. setting the idle higher or lower seems to have little effect most times. When I replaced the alternator...it was already remover prior to my acquiring the skidsteer. I figured where it went and hooked it up (I'm and auto mechanic of 5 years...I know what I'm doing)... so my thinking now is could the pulley size be incorrect? what governs the voltage regulator in the alternator? or where should I start poking wires? Thanks!

If all else fails buy one of the newer 1 wire alternators. I use them on tractors they are self regulating and once they reach 800 rpms or so they start charging, then you cut off key they don't discharge.