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How to wire a 24 volt tractor - John Deere 4020 Gas & Diesel Tractor Radiator

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Two 12v, connect + to on one battery to - on the other. Make
24v.

Posted on Oct 27, 2012

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24 volt trolling motor (motorguide) not working. Have 24 volts at receptacle in hull of boat but when I plug in the trolling motor and check the volts on the plug, I only read 6 volts. Any idea whats...


You have a high resistance short either inside the wiring or the lower unit. This will cause a voltage drop. I would be very careful not to keep it connected too long cuz the battery is trying to keep up with the current demand and may explode.

Oct 03, 2011 | MotorGuide STANDARD MOTOR REPLACEMENT...

1 Answer

Battery reads 19 volts,mower just spins when trying to start


The spark plug is most likely NOT getting spark. Is the wire connected to plug? If tractor was stored over the winter, who prepared the engine for storage? Some mechanics will take out plugs & spray some oil into cylinders to avoid any rusting in cylinder then the plug is replaced but NOT connected.
Maybe the plug needs looking at.
Louie Almond

Mar 27, 2011 | Craftsman 24 Hp 48" Deck Yard Tractor

1 Answer

I have a 3010 John Deere +24 volt pos ground how do I change from 24 volt gererator to a 24 volt altenator


The 3010 24v JD system is not a true 24v system. It is a balanced split 12v system, with one positive ground battery and one negative ground battery. The only 24 volt accessory is the starter, where the batteries meet in a series to provide 24 volts for starting. All other accessories are 12v, half powered by the positive ground battery and half powered by the negative battery. The generator charges one battery in one direction and the other battery in the reverse direction. Therefore a 24v alternator is not easily adapted to this system.
The usual solution is to change to a 12v system with an alternator, changing the starter to 12v and changing the polarity of the positive ground battery to negative ground.
The cost of a 12v starter and alternator is far less than the cost of a 24v alternator, plus the added benefit of using 12v lights and other accessories.
JD switched to this 12v type of system with alternator during the 20 series production, but used two 6v batteries in a series due to the larger cranking amp rating of the 6v batteries occupying the same physical space.

Jan 10, 2011 | John Deere 4020 Gas & Diesel Tractor...

1 Answer

How do you wire a honeywell round mechanical thermostat


What are you trying to wire up?
Typical Thermostat Wiring for 4 or 5 wire Heat/Cool Thermostat (not heat pumps)
4 Wire Termostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
with one transformer for both units
Rc One Side of 24 volt Transformer
Rh Jumper Rc to Rh
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
With 2 transformers one for indoor unit
And one for outdoor unit
Rc = Red One Side of (outside) 24 volt (outside transformer)
G = Green Blower (outside transformer)
Y = Yellow Cool (outside transformer)
Rh = Blue One side of (inside) 24 volt (inside transformer)
W = White Heat (inside transformer)
COOLING ONLY Thermostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
HEATING ONLY
R or Rh One Side of 24 volt Transformer
W = White Heat

Feb 09, 2010 | Honeywell CT87B ROUND HEATING&COOLING...

1 Answer

Trying to figure out thermostat wiring diagham on a split system


Typical Thermostat Wiring for 4 or 5 wire Heat/Cool Thermostat (not heat pumps)
4 Wire Termostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
with one transformer for both units
Rc One Side of 24 volt Transformer
Rh Jumper Rc to Rh
G = Green Blower
Y = Yellow Cool
W = White Heat
5 Wire Thermostat
With 2 transformers one for indoor unit
And one for outdoor unit
Rc = Red One Side of (outside) 24 volt (outside transformer)
G = Green Blower (outside transformer)
Y = Yellow Cool (outside transformer)
Rh = Blue One side of (inside) 24 volt (inside transformer)
W = White Heat (inside transformer)
COOLING ONLY Thermostat
R = Red One Side of 24 volt Transformer
G = Green Blower
Y = Yellow Cool
HEATING ONLY
R or Rh One Side of 24 volt Transformer
W = White Heat

Jan 05, 2010 | Heating & Cooling

1 Answer

Wiring diagram for 12/24 volt system


here is a wire diagram. follow the pictures. you can do fuses but i like inline breakers. you can get them at your local outboard dealer.e9e9f8a.jpg

Nov 05, 2009 | Boating

1 Answer

4020 w/ 24v system sparks when the battery is connected


I usually fix electrical problems by process of elimination. Disconnect the wires attached to generator and touch the battery cable to the battery if it still arcs disconnect the regulator. continue until you find whats pulling current from the battery.

Jun 01, 2009 | John Deere 4020 Gas & Diesel Tractor...

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