Hydrostatic Lawn Mower No Reverse: Solutions Explained
Hydrostatic lawn mower is a super cosy thing to mow your lawn without any hassle. But most often user do face the problem regarding its reverse mode.
Sometimes it is not that swift and sometimes it is not just working. So, users do want to know about the exact cause and solution of why hydrostatic lawn mower no reverse?
This most probably happens due to some accumulations in the back part or mechanical disruption.
How Does The Hydrostatic Lawn Mower Mow Reverse?
A hydrostatic lawn mower simply works via some pedals, levers, pump and motor. People who are new to use a hydrostatic lawn mower, often think it can’t mow in reverse.
But it is not true as following some instructions it can mow in reverse. Typically, there is a reverse pedal or lever that, when pressed or engaged, changes the flow of hydraulic fluid within the transmission, causing the mower to move in reverse.
You must turn on the engine first to do so and set the lever to reverse from the forward position.
What are the possible reasons behind the hydrostatic lawn mower no reverse mode?
You can suddenly find your mower sluggish to go in reverse or unable to do so. Certainly, there might be some issues with its transmission machineries which you have to troubleshoot first.
Here are some tips that might help you to find out the exact problem in this regard –
Check the pedal movement
You will have to find out if there is any restriction to move the reverse pedal. So, first push the forward pedal and check the flexibility. Do the some with the reverse pedal.
If you find some clogging response from the reverse pedal, check the idler pulley beneath the mower. There might occur some accumulation of grass or dirt which is restricting the reverse mowing.
Air bubble in hydraulic fluid
While changing the hydraulic fluid, air may be introduced. That is responsible for creating air bubble in the fluid and causing the hydrostatic lawn mower no reverse.
Improper moving of lever
You may find the lever handle moving not far enough back to conduct the mower in reverse mode. Look at the brake assembly of the transmission system. There might be clogging which is leading to this improper moving of lever towards the back.
Drive belt issue
There is a driving a belt that turns on the transmission input shaft. This shaft is directly attached to the transmission pump which maintains the flow of the fuel. So, if you find the belt is broken or damaged, it might be responsible for the inability of the mower to move reverse.
Absence of key in axle
Some of your mowers may need a small key for the wheels to move. While changing the tire if it is not replaced, the mower won’t move reverse or forward.
Broken pulley
If the tensioner pulley of your hydrostatic mower is somehow broken, it will not let your mower to go forward as well as backward. It does so because it causes inappropriate tension on the drive belt to move the mower.
Shortage of hydraulic fuel
Regular hydraulic oil changes, as per the manufacturer’s recommendations, are crucial for maintaining optimal performance in your lawn mower’s transmission system. Using old or low hydraulic oil can cause the mower to lose its ability to move forward or backward, resulting in weak movement.
Others
If you don’t find any problem related to above conditions, consider examining other components affecting engine performance. Look into the battery, charging system, fuel filter, fuel lines, air filter and carburetor.
If your engine sputters or shuts off, these elements could be causing the problem, affecting your ability to drive the mower reverse effectively.
How to solve the hydrostatic lawn mower no reverse issue?
An overall inspection and troubleshooting are a must to find out and solve the hydrostatic lawn mower no reverse issue. If you find any of the above-mentioned problems regarding your mower, follow these described tips to make a solution:
| Problem | Solution |
| Improper pedal movement | Check if there is any dirt or grass accumulation in the idler pulley, clean it well. |
| Air bubble in hydraulic fuel | Lift the rear drive tyres off the ground and continuously spin them back and forth until the wheels stop making loud noises and start moving normally. |
| Improper moving of lever | Repair the adjustment between lever and transmission shaft and use grease if needed. |
| Drive belt issue | Make sure it is on all the pulley and no dirt or sticks is stuck there. Clean the debris and reinstall the belt. |
| Absence of key in axle | Not all mowers have this key except some specific models. If yours one has this key, ensure it is installed while changing the tires. |
| Broken pulley | You must repair or replace the tensioner pulley if it is broken. Put some grease on the tensioner arm so that it can move the wheel swiftly. |
| Shortage of hydraulic fuel | Change your hydraulic fuel and filter within a certain interval according to the manual. Never let it go too low or too hot. Check if there is any leak. |
| Others | Routinely check the charging system, fuel line, engine, carburetor to find out any abnormalities. |
What kind of maintenance do you need to prevent your lawn mower from failing to mow in reverse?
It is always best to follow the prescribed manual to maintain your hydrostatic mower. As it is quite common that after certain time your mower may fail to go reverse, you have to perform some routine maintenance like below to keep it in a good state:
- Replace your fuel filter if it becomes too old as it can hamper moving towards back.
- Refill your tank with oil recommended by your manufacturer as all kind of oil is not suited by all mower models.
- During the dirty mowing season, change or wash the air filter once in a month and it will help you to make your mower long-lasting.
- Use grease in fittings to enhance the flexibility whenever you change a part of your mower. It increases the longevity of function.
- Discuss scenarios with the professional if DIY troubleshooting is not enough.
Frequently Asked Questions [FAQs]
How often should I check the hydraulic fluid level in my lawn mower?
Check it before the mowing season and periodically check it throughout the season as the fuel should not be run out.
Isn’t it safe to mow reverse?
It is said so because of the safety risk. Operating a mower reverse, can lead to trips and falls possibly causing the mower to fall on the person.
Can a clogged hydraulic filter affect the reverse function of a hydrostatic lawn mower?
Yes, a clogged hydraulic filter can restrict fluid flow, affecting the mower’s overall performance, including the ability to engage reverse. Regularly cleaning or replacing the filter is essential.
Is it possible to mow grass in reverse?
Yes, it is possible but due to safety risk and uneven mowing it is not recommended.
