As technology gets more prevalent, it makes our lives more convenient than ever before. Gone are the days when farming was considered troublesome and time-consuming. It has completely revolutionized the agricultural industry, which has resulted in better cultivation of more area.
Power quad transmission is a special technology used in tractors. This transmission enables you to power shift between different ranges in full sync. Usually, you can switch between four different speeds per range. You can seamlessly switch using the push-button control or clutch.
John Deere is a household name in the agricultural industry. The company has been around for quite some time and is known for manufacturing industry-leading agricultural and lawn-care equipment. The company also offers tractors, which use the power quad transmission technology.
How To Fix John Deere Power Quad Transmission Problems?
Having said that, no matter how reliable a gadget is, you can’t expect it to run forever. Every equipment has its shortcomings, and the John Deere power quad transmission is no exception.
There are a few problems that you might face while using this equipment. This article intends to discuss the most common John Deere power quad transmission problems and their effective solutions.
- Shuttle Shift Does Not Engage in Either Direction
One of the most common problems users encounter while using the John Deere power quad transmission is that the shuttle shift fails to engage in any direction.
Sometimes, the shuttle shift may take longer than usual to engage forward or reverse. It just does not respond, even when you use a manual gear shifter.
There could be many reasons that may cause this problem. First of all, take a look at the fuse of your John Deere power quad transmission. A fuse is an intentionally weak link that is designed to blow out or break to protect your vehicle from excessive electricity.
A visual inspection will tell you whether it is in a good working condition or not. If the fuse is blown out, you may need to replace it.
Before replacing the fuse of your John Deere power quad transmission, make sure to buy one with the right amperage rating. Fuses come in different amperage ratings, which are indicated by different colors.
Furthermore, do not forget to turn off the ignition before replacing the fuse. No electricity should flow while you repair or replace the fuse.
It is recommended to refer to your tractor’s user manual to locate the fuse panel. Once you have located it, remove its cover to access the fuse. Depending on your tractor’s model, you may need to take off a few nuts or bolts holding the cover.
The fuse layout is usually attached to the inside of the cover. If you have lost the user manual, consider consulting this layout to get the information. Now, visually inspect the fuses and replace the blown-out ones.
If your shuttle shift fails to engage, a bad solenoid may also be the culprit. Sometimes, solenoids fail due to overheating. If that’s the case, use a ceramic 10-ohm resistor to test the solenoid.
Apply 12-volt power at one end of the solenoid and ground the other wire using your resistor headlight tester for a minute. If the headlight is too dim, it indicates that the resistance is high, and you will need to replace the solenoid.
- Unable to Shift Through Ranges
Another problem that you might face while using the John Deere power quad transmission is that sometimes, you might not be able to switch between the ranges.
This usually happens when you directly switch from range one to four. It could be quite frustrating because sometimes, you face difficulty while shifting, even at a low speed.
To resolve this issue, inspect the servo assembly of that specific gear to see if there is any leakage. Apart from that, make sure that everything is lubed up. This will most likely fix the problem.
- Unusual Noise While Shifting
If you hear any unusual noise when shifting through ranges, there is certainly something wrong with the John Deere power quad transmission. It usually happens when an internal component has gone bad.
Lubricating the components can fix this problem. However, if the problem persists, consider reaching out to a mechanic.
- Hesitation or Jerking
There is nothing more annoying than experiencing jerks while driving the tractor. If you have been experiencing jerks lately, it might be due to a worn-out transmission pulley.
To fix the pulley, go to the back of your tractor and take off its guard. You will need an eight-millimeter wrench to unscrew the nuts that hold it in place. Once you have taken it off, locate the pulley. In most models, a snap ring holds the pulley onto the shaft.
Take them off using snap ring pliers. Thankfully, snap ring pliers are readily available all over the world. Just visit your nearby hardware store, and the chances are that you will find them there.
Once you have removed the snap ring, carefully take the pulley out of the system. Be gentle while removing the pulley, or else you may end up damaging the belt.
Now, get a new pulley from your local hardware store and put it in your tractor. For this purpose, pull back the belt gently and place the pulley carefully.
Then, reinstall the snap ring with the snap ring pliers and then re-screw the guard as well. Now, switch on the tractor to see whether it has fixed the problem or not. If you still face the problem, visiting the mechanic is your last resort.
Visit the Mechanic
If you still face some problems even after trying all the solutions, consider seeing a trained professional. Remember that a professional is professional for a reason, and they have the right equipment and know the techniques to fix all problems.
It is pertinent to mention that the aforementioned solutions often work for most users, but sometimes, they just don’t. The internal components may have worn out, and only a trained professional can help you.
Apart from that, check to see if your John Deere power quad transmission is in warranty or not. If the warranty has not expired, you may get a repair or replacement while paying the least out of your pocket.
Final Thoughts
John Deere power quad transmission allows you to shift through different ranges according to your farming needs seamlessly. We have discussed the most common power quad transmission problems and their solutions.
Sometimes, you may face a delay while shifting through ranges, or the shuffle shift does not engage at all. Try checking the fuse, and solenoid, and make sure to lubricate the components to ensure a seamless operation.
Jd 6420 was starts in 3rd gear