In the world of gardeners, Husqvarna is a name of trust and reliability. Unlike any other brand, Husqvarna offers an unrivaled selection of lawn tractors with electric, manual, and automatic Diff Lock configurations.
If you have unstable elements that are vulnerable to spills, wet areas to mow, or uneven ground, or you want to make use of a snowblower, a tractor with a Diff Lock is essential.
Even though Husqvarna locking differentials are known for their durability and performance in the off-road world, they can also be prone to problems. When these differentials fail, it can cause a lot of frustration for drivers and mechanics alike.
So, before you plan to invest, you should have an idea about Husqvarna locking differential problems. Here are some of the most common Husqvarna locking differential problems and how to fix them. If you have already faced any of the issues, see the solution.
Common Husqvarna Locking Differential Problems
Fixing a locking differential can be a tricky and time-consuming job. If the differential isn’t functioning properly, it could cause problems while mowing, including loss of power and/or poor acceleration. Differential repairs can cost a lot of money, so it’s important to get them done right the first time.
The Locking Differential Isn’t Engaging
Husqvarna mowers come equipped with a locking differential to help avoid skidding when making turns. However, some owners have reported that the differential is not engaging, making it difficult to make turns.
In some cases, this problem has been traced back to a worn or malfunctioning gearbox seal. Husqvarna is currently offering a free gearbox seal kit to affected customers in an effort to rectify the issue. If your Husqvarna mower is experiencing difficulty moving through tall grass or leaves, it may be worth considering replacing the gearbox seal.
The issue has been reported on multiple models, including the 570PX and 590PX lawnmowers. Affected owners have attempted to repair the problem themselves with varying degrees of success. Husqvarna is aware of the defect and is working to replace the affected mowers.
Solution
If your Husqvarna Mower’s Locking Differential isn’t engaging, there might be a few things that you can do to troubleshoot the issue. Check to see if the differential is turning freely by hand.
However, if it isn’t, you might need to replace it. If the differential is turning freely by hand, but the mower won’t move, there may be something blocking the lever from moving.
To check this, remove the mulch cover and check for debris or obstruction in the path of the engage lever. Additionally, make sure that both blades are properly sharpened and that there are no foreign objects caught in between them.
You should also check to see if the differential gear is properly seated in its housing. If it isn’t, use a wrench to tighten it until it is. Make sure that the engagement lever on the transmission is set to the “ON” position. Try adjusting the cable tensioning system.
The Locker is Stuck in the Drive Position
As we know, several Husqvarna mowers have a locking differential that helps the machine move in a straight line. This system is designed to help keep the mower stable while in use, but it can become stuck in the drive position.
If this happens, the differential becomes disabled and the machine cannot move forward or backward. The problem typically occurs when the differential becomes clogged with grass and leaves, preventing it from moving smoothly through its gears.
This can cause difficulties when operating the machine, as the drivetrain is unable to move the mower forward or backward. When this occurs, a Husqvarna technician will need to remove the differential cover and attempt to free the mechanism from its gearbox. If unsuccessful, they may be required to replace the differential altogether.
Solution
If your Husqvarna mower’s locking differential is stuck in the drive position, there are a few things you can do to fix the problem. You may need to remove and replace the differential gear or use a chisel to break the gear free from the shaft.
In case, it doesn’t work, try using a socket wrench to turn the gear on the shaft. Once it’s loose, you can unscrew it and replace it.
Check to see if the gearbox is properly lubricated. If it isn’t, add some oil to the gears and shift the mower around a few times. If that doesn’t work, you might have to replace the gearbox altogether.
Abnormal Spinning
When the Husqvarna locking differential issue begins, the issue will become active and activate when you initially start your vehicle and leave a garage or parking lot. The condition will immediately commence becoming active once you mix in simply a single stop or depart from the parking area.
The back of the mower should be linked in a collaborative fashion to the rear wheels in order to make sure there is forward motion, and that the blade will not deflect from the road. This ensures there is no speed at which the wheels will not remain rolling.
That particular wheel will be waving quickly and have a deleterious effect on the road. In rear-wheel drive, this could potentially have an impact on the excursion in its present condition, reducing the grip that’s necessary.
Likewise, the tire will begin to slow down as it wears down, but you won’t regularly have to reinstall it. Your vehicle might also be less trusted as it keeps on turning and spilling the anti-lock braking system.
If you stick to roads that involve intense slipperiness, then if you become upset, you could cause your mower to spin out of control. In certain cases, the vehicle may lock up both wheels simultaneously, which might lead to a crash. It’s a precarious scenario and might lead to injuries.
Solution
The lock system in the Husqvarna stops making use of the internal combustion engine because of a bike lock mechanism called a flywheel and a governor connecting with it.
This mechanism supplies power to the lock system when the wheel shaft locks, preventing the transmission system from moving to the arbitrator. This mechanism ensures optimum car balance at speed.
Hence, it can be seen that the entire system is able to function because each part of the device is made of metal. As a result of failing these parts, the locking differentials eventually stop working.
This leads to the different parts of the system mistakenly becoming damaged. Sometimes, these external parts fall off. The damage is typically observable in the engine.
Several rotating parts inside the remainder of the parts in lock parts must be ready to be able to spin for the forever component of the lock components to operate efficiently. Broken sections of these rotating components or other faulty gear get in the way of the machinery required to unlock the wheel assemblies.
In order for the system to function optimally, the gear needed for the rotation of cases in which the flywheel is used must remain undamaged. Gears such as this can be damaged or out of order, meaning the governor does not properly relay the gearbox codes to the locking differential.
Lubricant Contamination
The Husqvarna lock mechanism may utilize a lubricant that may be vital to lowering the friction that may occur inside it. Such lubricants may not be required, or the lock unit may not use them. However, lubricants can also have an effect on at least some of the mechanism’s operation, and a metallic structure could be impacted.
Hence, it may eventually begin to break and become damaged. The dripping fluid may cause difficulty with the locking differential of your mower. The liquid could also leak from the vehicle’s accessory cover and trigger difficulties in your Husqvarna.
Solution
An inert fluid that doesn’t alter the terrain can put you at a lower risk of experiencing the Husqvarna lock differential dilemmas. Take care not to use chemicals in the system.
Familiarize yourself with the gasket having a silicone coating, which will shield your differential and prevent it from wear and tear. Thoroughly clean the hopper and cleanse the cover, getting rid of any tainted fluid. Then you can add fresh fluid.
FAQ
Why does my Husqvarna mower stall when I engage the blades?
Husqvarna riding mowers commonly cease functioning when the cutting blades are engaged because the grass box is not completely closed. Other possible reasons for that issue include Grass Box being Misaligned. Grass Box Sensor Wiring Loose.
Why won’t my Husqvarna riding mower blades won’t engage?
If the PTO clutch is not powered, if the PTO solenoid circuit is cracked, or if the PTO clutch is ruined, the lawnmower blades will not twist. The PTO clutch will not be qualified to be fixed if the PTO solenoid program is damaged, its contents need to be replaced. The PTO switch provides the needed electricity for the PTO clutch.
When the differential lock on your tractor is activated?
The differential lock will slide a gear pin through the differential, stopping one wheel from turning while the other has inadequate traction. This gives you more pulling power by locking both axles together, but you cannot do the modification to the tractor this way. Only when using it as an alternative to the differential lock can improve your traction.
Final Words
If you are experienced with Husqvarna Locking Differential Problems the previous time, this may be an indication that you have understood the problem extensively. By thinking about what may happen as a consequence of a case, it may become possible to think about techniques for solving it.