Mower drive problems

kemper · Jul 21, 2012

I have a Husqavarna LGT2654 riding mower that has a hydro transaxle.

The problem is that when I start first start using the mower it moves good. On hills the mower will slow down a bit.

But after using the mower for about 20 minutes it begins to noticably slow down, even on level ground, until finally it will hardly pull itself, even of level ground.

When this happens the mower will not even pull a slight grade.

I have also noticed that when this happens, and the forward pedal is pressed, there is a noticable whinning in the transaxle.

What could be causing this problem. Thanks.

Rivets · Jul 21, 2012

First thing I would check is the belt tension and condition. The belt should be tight and the idler pulley should turn easily, even after cutting for awhile. When was the last time the belt was changed?

KennyV · Jul 21, 2012

While you are there checking the condition of the belt... check if the cooling fan is plugged up or the general area around the transmission is blocked with grass... :smile:KennyV

kemper · Jul 22, 2012

Rivets said:
First thing I would check is the belt tension and condition. The belt should be tight and the idler pulley should turn easily, even after cutting for awhile. When was the last time the belt was changed?

Thanks for the reply. I should have mentioned that it has a new belt, and the last time that I tried to use it I checked and the belt does not slip and the transaxle pulley with the plastic fan on top is turning, but the mower won't move.

kemper · Jul 22, 2012

KennyV said:
While you are there checking the condition of the belt... check if the cooling fan is plugged up or the general area around the transmission is blocked with grass... :smile:KennyV

\\

Thanks, I will.

Rivets · Jul 22, 2012

Have you checked to see if the hydro release lever is all the way in. If it is in the half way position it will give the symptoms you describe.

kemper · Jul 22, 2012

Rivets said:
Have you checked to see if the hydro release lever is all the way in. If it is in the half way position it will give the symptoms you describe.

Yes, I have, sorry for the not very compete description of my problem. But I have checked the bypass valve and it is closed.

Thanks.

EngineMan · Jul 22, 2012

Anyone read this.........had it on the web...! (husqvarna LGT 2654 want pull up hill)
Tom W
760 Solutions July 18, 2010

"You didn't indicate what model of tractor you have but most likely it is a hydrostatic drive problem . The power is transfered from the engine to the wheels by hydraulic pressure. If the fluid level (hydraulic oil) is low then it won't drive correctly. Follow the owners manual to check the fluid level. The other possibility is if this is an older unit it could actually have water in the oil.The water will not operate correctly. Where did the water come from? The transmission housing, is vented to atmosphere. On a hot humid day, while you're driving, the fluid and housing is heated. When the tractor cools, the ambient humid air enters the housing. When night rolls aroound the water condensing inside the housing. If you're lucky this transaxle may have a drain plug in the bottom. You can remove this and see if the oil looks milky. If it does, I'd drain it all and refill with fresh oil."

EngineMan · Jul 22, 2012

I also have this out of the Operator;s Manual

EngineMan · Jul 22, 2012

If its not fluid/level it could be one of three things
1 supply valve
2 pump
3 Air trapped in transmission

Mower drive problems

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