Results 1 to 7 of 7
-
06-04-2009, 02:36 PM #1
riding lawn mower lights
why is it that all the lights on my riding mower go dim when i idle the engine and get brighter as i increase the throttle? are they not hooked to the battery?? are they hooked directly to the magneto or whatever and not run off the battery at all?
-
06-04-2009, 02:45 PM #2Platinum Member
- Join Date
- May 2007
- Posts
- 838
- Location
- eastern PA-lower Poconos
- Tractor
- JD2320 w/R4 $21,100 w/7.16%off
Re: riding lawn mower lights
That use to be a common problem with cars before they switched from generators to alternators. Probably your battery is marginal or your voltage regulator is set low.
Eastern PA -JD2320 w/R4; 200CX w/61" bucket & Markham toothbar or JD adj forks; 46BH w/16", Imatch, ballast box & York rake-blade-scarifer, 54" front plow and trailer receiver. Case 580K w/fel+bh, mule 610XC
-
06-04-2009, 03:16 PM #3
Re: riding lawn mower lights
it's got a new battery as of last month.
-
06-04-2009, 03:53 PM #4Veteran Member
- Join Date
- Sep 2001
- Posts
- 2,225
- Location
- South Central Ohio
- Tractor
- 2003 New Holland TC24D
Re: riding lawn mower lights
Most of the new riding lawn mowers I've been around don't run the lights off the battery. They run them off the generator/starter on the engine. Should the engine stall for a reason, the lights will go out completely.
Jim
New Holland TC24D
-
06-04-2009, 09:31 PM #5
Re: riding lawn mower lights
Your tractor uses a combination of stator/ battery to operate the lights. When your idleing the battery is suppling the voltage for the lights. When you rev up the engine than the stator picks up the slack giving the necessary voltage to give you bright lights. You machine probably still has the 3 amp stator which in later models they changed to 15 amp to handle the electrical loads. If you run your tractor at idle long enough with the lights on eventually the battery will go dead. It's an annoying problem but it is what it is. Hope that helps alittle.
S_G
Remember nobody ever complained about having too much horsepower!
-
06-04-2009, 10:01 PM #6Silver Member
- Join Date
- Jul 2006
- Posts
- 201
- Location
- Pittsburgh, Pa
- Tractor
- Chinese quality - Jinma 2420 - Ford 1900 - Steiner 420
Re: riding lawn mower lights
On a lot of these cheap mowers you have two circuits in there. One is only for the headlights and the other is a charging circuit for the battery. Not sure what the purpose of that is. But I would imagine its due to not needing a voltage regulator then. And most charging circuits on mowers are just for a trickle charge of the battery it doesn't actually charge like a car or battery charger can.
Steve
-
06-05-2009, 01:58 PM #7Super Star Member
- Join Date
- Oct 2004
- Posts
- 16,843
- Location
- First organized permanent settlement in the northwest territory
- Tractor
- 2003 Kubota BX1500/2004 Kubota Bx23/2005 Kubota BX1500
Re: riding lawn mower lights


Reply With Quote


