Is there an adjustment on the hydrostatic pump as the mower dosen't want to move forward or backwards
Experienced gardeners share their insights in answering this question :
There will not be any actual adjust in the unit, there will be some adjustment in the rods from the hand/foot lever, if you can see the arm moving freely on the unit when you work the foot/hand lever it is probably not a linkage problem, if there is an external brake disc, make sure the brake is not binding, finally somewhere on the unit will be a bypass lever for push mode, make sure this has not been engaged.

How to Identify and Fix Common Gardening Problems ?

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Failure of any mechanical component, a broken hose, or clogged filter will cause tractor hydrostatic transmission problems. But the most common issue will be the oil itself. In the transmission section of your operator`s manual, you`ll find a section that covers oil viscosity.
If your lawn mower turns on but won`t move, there could be a number of potential causes. The most common issues include a broken or damaged belt, a clogged discharge chute, a broken or damaged drive cable, or a damaged or clogged transmission.
Replace the riding mower drive belt

If your riding lawn mower won`t drive forward or slows down when you go uphill, check the drive belt. Reinstall the lawn tractor or riding mower drive belt if it`s slipped out of place. Replace it if it`s damaged or broken.

The reasons why mower is not moving forward or reverse is that the battery is dead, or due to clogged fuel line. Additionally, malfunctioning transmission, or a broken drive belt, also a faulty spark plug, even when friction wheel isn`t in contact with the friction plate, or damaged Tires.
One of the disadvantages of hydrostatic drives is that the majority of the oil stays in the loop and doesn`t return to the reservoir for cooling. One way to return some of the oil back to the tank is by using a hot oil shuttle valve.
To push a riding mower equipped with hydrostatic drive it will be necessary to disengage the fluid drive by activating the manual bypass valve. The activation of the manual bypass valve will allow the axles to roll freely by diverting the flow of fluid around the drive pump system.
Set the cutting height to the correct position

One of the reasons for the lawn mower being hard to push is a low cutting height. In this case, the housing or the cutting blade is dragged through heavy grass.

Use ramps that attach to the back of your truck or rented moving van, if you`re moving the lawn mower on your own. Put the riding lawn mower in neutral before carefully pushing it up the ramps. Once in the truck or van, turn the back wheels slightly. This will prevent the mower from rolling backwards.
If you attempt to push a tractor with a hydrostatic transmission, it causes fluid to move backward through the pump and can damage the seals. You must disconnect the drive before moving your lawn tractor.
But you can`t ignore proper service. “Like any transmission parts, hydrostatic transmission parts will eventually show signs of wear.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Its moving very slow and not going up hills well
ANSWER : If the engine is running well, sounds like your hydrostatic transmission is going out.

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How to take off carbarator – Briggs & Stratton Briggs Stratton Lawnmower Lawn Mower Short Block
ANSWER : Usually there are two screws. On some newer mowers the same screws hold on the Air Cleaner housing.

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Hydrostatic tractor won’t move forward or backward. I release the hydrostatic lever but it won’t move.
ANSWER : Check the fluid level. Can you push it when it is in gear? Have you added any fluid it may have to be purged. Also do you use a pressure washer or water hose to clean it up or does it set outside it could be getting water in the transmission.

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Ride on lawnmower lr35 just clicking and wont start
ANSWER : Check battery and starter cables for tightness and corrosion. also battery voltage.

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Riding lawnmower 42 in husqvarna i changed spark plug and gave it gas and charged the battery it acts if it wants to start but it just doesnt turn over
ANSWER : Have you checked the air filter? Look at the filter and hold up to sunlight if you can’t see the light thru the filter then replace.

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Transmission slipping. – Husqvarna 20HP Hydrostatic 42" Cut Riding Mower
ANSWER : What can we help you with?

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I have a craftsman 42″ hydrostatic riding mower with an 18hp twin that has been getting slower with each use lately.The last time I mowed,I couldnt go up any inclines while on the tractor,if I got off it would slowly advance.Seems to be getting worse.Is it such a thing…low on fliud would cause this or could someone offer some advice.Thank you to whom ever may help!
ANSWER : Yes low fluid would cause that also contaminated oil….and drive plates wearing out as well

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Hydrostat trans on leftside stop pulling – Mustang Rzt 50" Zero Turn Riding Lawn Mower
ANSWER : Each side has it’s own hydro motor check the linkage first

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