There’s a good name that Husqvarna has made with its riding mower lineups in the industry. But occasional troubleshooting and fixing are still very much needed as a part and parcel of using this lawn maintenance equipment.

The Husqvarna mowers are made by Husqvarna Consumer Outdoor Products based in the US. There are several factories that participate in manufacturing located in many parts of the US. Even after spending a substantial amount of time in the industry, Husqvarna is still going smooth at being at the top.

Anyways, let’s get you through the Husqvarna riding mower parts diagram, something that hopefully will help in terms of dealing with issues. Also, we would explore some of the common issues that happen with users of Husqvarna riding mower parts in the later sections. Keep On Reading…

Here’s The Husqvarna Riding Mower Parts Diagram!

As most pdf files of Husqvarna lawn mower parts online have separate diagrams describing each part, it gets hard to look up all. To show each component in a single picture, just look down below:

Husqvarna Riding Mower Parts Diagram

The Husqvarna Parts List & Their Purpose

So, what’s going on in the above picture? To understand the whole thing, you’ll need to get familiar with the parts and their purpose. Let’s dig into it!

1 – Control Assembly

If you look closely into the top-left side of the Husqvarna riding lawn mower parts diagram, there’s this part that engages the gear case so that the vehicle drives well.

2 – Bracket Obsoletes (Different Shaped)

To create a strong bond using nuts inside the bottom side of the mower, this part does a great job. You’ll find different shapes of them in the mower that help to keep the tiny accessories stay fitted.   

3 – Front & Back Transmissions

There are two transmissions in the Husqvarna riding mower, one in the front and another in the rear. The transmissions associate hydraulic pumps and motors to generate energy for the machine.

They are basically hydrostatic type that helps the vehicle to mow at a wide range of speeds. And, these help you go on without using the present gear speeds.

4 – Gear Wheels

In the mower, you’ll locate four gear wheels that attach to all wheels (both left and right side). Each of them mostly contains 14 teeth to keep the other part moving.  

5 – Drive Cable

It is a mid-length or long cable that fits on the control assembly to give signals to the gear. So, when you move the drive level, the cable immediately gives a signal to the transmission and triggers it to move the mower to the grassy area.

6 – Drive Control Bracket

This part is a fitting accessory that links the drive pivot side to the upper block and knobs. Just like others, it helps to function the gear.

7 – Mower Belt

The mower usually goes forward while the blade spin to mow grasses and other things thanks to the belt. Unlike most, the Husqvarna mower comes with 1 large belt.

When the front side of the belt fits on the transmission (on the front driveshaft pulley) and the backside of the belt is connected to the deck (on the rear driveshaft pulley).

8 – Pulley Drive

This signal part that inserted into the mower power source. It usually fits on the mower belt to keep it rotating.

9 – Right-hand Adjuster

You’ll find 2 of them in the Husqvarna mower on the right side (in the diagram they are on the left). They simply fit on the right wheels to adjust the height to spin well.

10 – Left-hand Adjuster

Similar to the 9 no part, you’ll find 2 left-hand adjusters (in the diagram they are on the right). They tend to connect to the left wheels to correct the height so that they rotate.

11 – Silver Nut

This part is in total 4 that fits on the front and rear knobs which count as fitting accessories to attach to the mower.

12 – Front & Rear Knobs

To function the mower and spin the blade, the knobs let you simply control the height of the tires when the wheels move. You’ll see 4 of them in the picture.    

13 – Belt Cover

The part tends to cover the mower belt to keep it rotating without causing any dirt to enter and block the teeth.

14 – Screw

There are usually 3 of them in the Husqvarna mower that fits inside the bracket obsoletes and belt cover.  

15 – Washer

Mostly come in a rubber washer to secure the tiny accessories inside the wheel assembly. This helps to create a tight sealing.

16 – E-ring

Look similar to the letter ‘E’, the 4 e-rings tend to fit in the wheel assembly where each contains 2 open ends. They are designed to snap into the fitted areas.

17 – Wheel & Brake Dust Cover

As you can guess from the name, the part fits on the wheel assembly to keep out dust (grasses or mud) by protecting the rotors, calipers, and pads from most obstacles. You’ll find 4 of them which do great against water attacks.

18 – Golden Nut

The 4 nuts that fit on the bottom side of the mower. These accessories fit on the other side of the mower body frame to tightly secure the right-hand and left-hand adjusters.  

19 – Drive Pawl

In the mower deck Husqvarna riding mower parts diagram, you’ll see 4 drive pawls that fit on the transmission axle. These help to engage the pinion gear so that the mower moves rightly.

20 – Tires

Just like others, the Husqvarna comes with 4 tires that contain thick tread to move over grasses. These provide good traction to keep the mower moving over any terrain.

21 – Hex Flange Locknut

Close in look to usual nut, but hex-shaped to fit inside the tires right into the middle. It basically works as a protector to keep the bearings and tiny accessories secure.

22 – O-ring

The part tends to support the wheel and brake dust cover by blocking the path and stay attach tightly to the wheel assembly.

23 – Big Head Screw

It’s a part that fits the top-right bracket obsolete (that attaches to the rear transmission). This contains a big head that attaches deep into the hole.

24 – Fitting Kit

It basically contains different things which are hex, locknut, O-ring, washer lock with teeth, drive pawl, nut, and so on. This kit fits into the hole of the mower by connecting the height adjuster.

25 – Rod Hinge

This part looks like the letter ‘L’ which is a silver bracket to fit into the front transmission. It just slips inside the hole to fit tightly.

26 – Screw

It’s a fitting accessory that attaches to the transmission (front side) to keep it stay inside the mower. This has a pitch thread that requires a little twisting to fit.  

27 – Drive Pulley

This plays a big role to transfer the whole power from the engine to the transmission (through another main pulley).

28 – Bolt

It is mostly made out of steel material to fit inside the pulley. This works as a temporary fastener to fit with the help of a screwdriver or wrench.

29 – Spring Tension

The part creates initial tension to fit inside the real transmission. With the proper load or force, this lets the idler pully bracket pop up when the blade rotation turns off.

30 – Small Screws

Usually, the 2 tiny screws attach to the drive control bracket to keep it attached to the fitting (control assembly).

31 – Quick Connect Coupling

The Husqvarna mower contains this part which fits on the deck. It’s a connector that can be detached and attached.

Common Husqvarna Riding Mower Parts Issues

Here’s a briefing of what could be going wrong with your Husqvarna Riding mower and the part that potentially is responsible.

Husqvarna Riding Mower Parts Issues

Husqvarna Riding Mower Part Responsible for “Not Starting Issue”

One of the major reasons why a mower may fail to start is related to the engine. And a lack of air or fuel could make the engine restrict a start. There are many parts that could be causing this trouble. Commonly these are:

However, there can be other specific reasons behind the riding mower not starting.

Let’s talk through solutions of how you can retrieve the starting behavior.

  1. Make sure you are filling the fuel tank with fresh fuel. No gas in the fuel tank could be causing the problem.
  2. Sometimes the fuel inside the tank has gone bad or is just too old. In that case, drain it and fill it with fresh fuel. If you really want to keep things clean for the overall fuel system and avoid this problem adding a fuel additive will definitely help.
  3. You can try any fuel additive of your choice for instance the Sea Foam SF-16 Motor Treatment is a great one. Not to mention, you must be very conscious about picking the right fuel.
  4. Another reason could be a clogged fuel cap, simply use a wire and clear the vent. You can also try replacing the cap.
  5. A spark plug gone bad can also create trouble. Make sure you replace all the broken ones and don’t leave any connections unsecured there.
  6. Air and fuel filter plugged can also cause no starting of the mower. You need to replace the filter to solve the problem.
  7. Damaged fuel pump, fuel lines, safety switch, ignition switch or coil, recoil, and charging systems are also common causes behind a starting failure of a riding mower. For all of these, you will need a replacement of the parts.
  8. Another reason is the carburetor becoming clogged and dirty. You cannot really do much about cleaning it, so again replacement of carburetor will be necessary.
  9. And finally, it can also be due to a dead battery. Similar to this are loose cables or terminals being corroded. You need to simply charge the battery or go for replacement. Also, all the cables should be tight. Terminals will need deep cleaning out of corrosion.

Issues Related To Hydrostatic Transmission 

There are plenty of things that can lead to a weak transmission of hydrostatic transmission. However, most of the time, it’s because of:

Now keep in mind there are certain types of transmission that cannot have any results from services. And this means there are no possible changes that you can do towards the hydraulic oil.

As the system is completely sealed. The only route of repair in such a case is taking help from the repair shop or directly contacting the dealership.

Now the very first Husqvarna riding mower part that comes to mind for a weak transmission is a drive belt.

Also Read: A Complete Guide for Husqvarna Lawn Tractor Hydrostatic Transmission Problems

It is becoming worse and can cause the pump to stop working. And so, you will require replacing the belt as soon as you notice any sign of cracking or fraying.

Another common thing that can cause weak transmission is a bad tensioner pulley. This means you will have no tension on the drive belt.

And so, you need pulley replacement. As well as some greasing on the tensioner arm.

A low hydraulic oil level can also be a potential problem maker. It can also go bad. And so, there’s no lubrication of the hydraulic system. Making the whole system go weak.

You need to make sure there are enough oil changes done on a regular basis and maintain a specific interval. Husqvarna should have given some recommendations on your specific model, just refer to that.

Can’t Drive Straight or Improper Steering Issue

There are again several reasons behind such happening but most of the time it:

Now having not equal tire pressure will cause one side to pull off the mower. And so, the issue. You need to test the pressure and adjust it to the specs recommended by Husqvarna to get it fixed. Both the tires on each side should have the same pressures.

Having faulty dampers on zero turns will also cause one side jerking whenever you try to move the mower forward. And this can be sorted by replacing the old damper with a new one simply.

Not having the same speed in tires can cause to one tire move faster than another. Hence the mower will pull on one side. You can make some speed adjustments to correct the error.

The speed adjustment bolt will be able to help you in altering the tire’s rotation speed. Again, you need to take notes from the owner’s manual for ideal speed.

And finally, the steering components might have gone bad or there would be looseness. These are bushings, washers, and gears usually. Check all these components and change whatever needs to go.

Mower Cannot Make Even Cuts

Usually, an uneven cut is an indication of a mower deck problem. However, that’s not always the case, it can also be something as simple as a low tire. So, before you doubt anything at all, make sure the tire pressure is right.

Other reasons that can cause the issue are worn-out or bent mower blade, the wrong installation of the blade, or a clog in the mower deck.

If it’s a damaged part, you need to replace that. In case of clogs, use a specified tool to break them. However, some clogs are not so easy to get rid of. In that case, you’ll need a replacement.

Leaking Gas Issue

Fuel leaks, which should be behind the problem, are quite hard to discover. And that’s because those evaporate into the air very quickly. Even when you understand there must be a leak, the area of the leak will be hard to find. Sometimes a strong smell indicates this problem.

So, the only thing you can do to confirm leaks is to start from the fuel tank and go through all the components of the systems by following fuel lines. And check if there’s a leak.

Buildup inside the carburetor can cause it to fail and that can also cause the gas leak. You need to clean the carburetor and change all the damaged parts to fix this.

Also, an old or bad fuel pump can cause trouble. Replace to fix the issue. It can also be a bad fuel tank on whole. Rust holes are easy to develop inside metal tanks.

While with a poly tank, the seams can catch leaks. In both case, you should consider replacing the fuel tank. Some rust holes might be fixable, but that’s a rare case.

The shut-off valve for fuel can also be damaged. As these are made of plastic or metal, the valves can easily leak. And If that’s the case, you need to replace the valve.

Fuel lines are made of rubber. And they tend to get dry over time. This results in cracking which causes a gas leak. Fuel line replacement is necessary.

Another component that could be responsible is the primer bulb. This thing is also made of rubber and so there can be leaking from cracks that take place with constant use.

The bulb facing improper attachment to the fuel hose can also be a reason. You need to replace the primer bulb if it’s cracked.

The gas cap having a bad seal is also a potential problem maker. Because there’s no seal, the gas is splashing out of the tank and hence the problem changing the gas cap can solve the problem.

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Frequently Asked Questions (FAQs)

What model is my Husqvarna mower?

You can check what model is your Husqvarna mower by finding the left rear wheel located frame. The model number should be available there along with the part and serial number.
Sometimes the model number tag is situated on the right wheel fender close to inner frame. To access the sticker, you need to lift up the seat.

Are Husqvarna riding mowers good?

Yes! Husqvarna is a renowned riding mower provider that has a high reputation on the market. It’s considered to be high in reliability as well.

How many hours does a Husqvarna riding mower last?

It depends! The factors that decide the lasting periods are frequency of use, the workload at each session, maintenance habits, and more. But on average, you can expect the riding mower to work well for at least 450 to 850 hours.

Wrapping Up

And that’s all! We tried to help you with an easy Husqvarna Riding Mower parts diagram and walk through some of the common issues that these parts face.

Now you have the information to start troubleshooting whatever issue your riding mower is facing.

If things are still challenging, it’s never too late to ask for help from an expert. A more reliable and quick fix will come to you that way!

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