l2850 Electric problem

sgfliushd

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Dec 11, 2023
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Norwalk
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sgfliushd

New member
Dec 11, 2023
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1
Norwalk
Failed to mention there is power to the switch. Tractor will start also fuel shut off solenoid is ok but no power too it
 

PoTreeBoy

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L35 Ford 3930
Mar 24, 2020
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WestTn/NoMs
No fuel gage, dash lights, no temp gage, fuel shut off not working. Replaced ignition switch nothing changed. Need suggestions.
I don't have a schematic, but I'd check all the fuses and that power is available to them and past them.
 

Dave_eng

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M7040, Nuffield 465
Oct 6, 2012
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Williamstown Ontario Canada
Failed to mention there is power to the switch. Tractor will start also fuel shut off solenoid is ok but no power too it
Need more details on your machine as there are different wiring depending upon.......... Cab or not.
Type of transmission, Manual, Hydrostatic of GST
Please provide more history on what lead to the main switch being changed.
Some models use a power to stop fuel solenoid. There is a timer relay which, when you turn the key to OFF the relay powers the fuel solenoid for a few seconds to give the engine time to stop.
The only time you will see power at the fuel solenoid is during the few seconds when you have turned the key from ON to OFF.
Dave
 

rbargeron

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L5450, L48, L3250, L345 never enough attachments
Jul 6, 2015
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western ma
Symptoms sound like the FUSIBLE LINK - in the wiring near the starter. When it gets corroded inside (or blown) it shuts off a lot of electrical equipment. It looks like this.
To test it, substitute a piece of house wire, made into a U-shaped jumper. Push it into the socket and see if things work again. If so, order a correct one to reinstate fuse protection. Its intent to to prevent electrical damage if a battery is installed backward.
 
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GreensvilleJay

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BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
Apr 2, 2019
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Greensville,Ontario,Canada
To do any real electrical trouble shooting to need the wiring diagram.. curious, went to...
www.Kubotabooks.com, has the WSM for the L2800. If real close to your L2850, there's a wiring diagram in it.
Seems there are THREE slow blow fuses and a few normal one. A quick glance .. and I bet one of the slow blow fuses is open. main power is split into 3 sub sections so it's probably you could start/run the engine yet not have gauges or lights function.
 

rbargeron

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Equipment
L5450, L48, L3250, L345 never enough attachments
Jul 6, 2015
1,166
235
63
western ma
The L2250, L2550, L2850 & L3250 were produced from 1985-1992. The L2800 came later 2004-2010.

The factory manual for the L2850 shows this wiring diagram (without yellow highlight)
1703599805890.png
 
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