Video & Articles: Appliance & Equipment RepairKohler Lawn Mower Dies? Voltage Regulator/Rectifier 4140310-S

Kohler Lawn Mower Dies? Voltage Regulator/Rectifier 4140310-S

01:45
This video provides step-by-step instructions for replacing the voltage regulator/rectifier on single cylinder Kohler Command small engines, commonly found on riding lawn mowers, riding tractors, zero-turn radius mowers, and commercial walk-behind mowers. The most common reason for replacing the regulator/rectifier is when the battery keeps draining.

All of the information in this regulator/rectifier replacement video is applicable to the following brands: Kohler, Exmark, Toro, John Deere

Tools used: socket wrench

Step By Step Instructions

1
Before you begin this replacement, make sure the engine has cooled remove the wire and boot from the spark plug or plugs
2
Then disconnect the cables from the battery; black first, then red.
3
Note the orientation of the wires attached to the regulator/rectifier, then disconnect them.
4
Next, use a socket to remove the screws securing the old regulator/rectifier and pull it off.
5
Install the new regulator/rectifier by aligning it on the blower housing reattach the grounding wire if applicable to your model as you secure the screws.
6
Reconnect the wires.
7
You can now reconnect the battery cables red first, then black.
8
Finally, reattach the wire and boot to the spark plug or plugs.
Description
This video provides step-by-step instructions for replacing the voltage regulator/rectifier on single cylinder Kohler Command small engines, commonly found on riding lawn mowers, riding tractors, zero-turn radius mowers, and commercial walk-behind mowers. The most common reason for replacing the regulator/rectifier is when the battery keeps draining.

All of the information in this regulator/rectifier replacement video is applicable to the following brands: Kohler, Exmark, Toro, John Deere

Tools used: socket wrench
Step-By-Step Instructions
1
Before you begin this replacement, make sure the engine has cooled remove the wire and boot from the spark plug or plugs
2
Then disconnect the cables from the battery; black first, then red.
3
Note the orientation of the wires attached to the regulator/rectifier, then disconnect them.
4
Next, use a socket to remove the screws securing the old regulator/rectifier and pull it off.
5
Install the new regulator/rectifier by aligning it on the blower housing reattach the grounding wire if applicable to your model as you secure the screws.
6
Reconnect the wires.
7
You can now reconnect the battery cables red first, then black.
8
Finally, reattach the wire and boot to the spark plug or plugs.

Applicable Product Model

Parts Needed
Recommended Tools and Accessories
Fuel Tank
Fuel Tank
$31.52
Fuel Tank
Fuel Tank
$54.38
Total$0.00

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