751 hydraulics struggle

[WVRoger]

The 751 skid steer struggles when using the front hydraulics and even when tramming. The noise it makes sounds like a belt but there are no indications upon inspection of the drive or hydraulic belt slipping and they are tensioned correctly. This struggling noise happens or almost every movement. Does anyone have an answer to what’s happening causing this noise? I did replace the tensioner on the drive belts a short time ago but it seems to spin freely and easily. This machine does have metal tracks on it and they seem to have the correct amount of slack in them/ the hydraulic tank is at the full level and the breather on the tank is clear. I am at a loss to diagnose this issue and cure it! Thanks for your review and comments!

 

[fortworth-cowboy]

The 751 skid steer struggles when using the front hydraulics and even when tramming. The noise it makes sounds like a belt but there are no indications upon inspection of the drive or hydraulic belt slipping and they are tensioned correctly. This struggling noise happens or almost every movement. Does anyone have an answer to what's happening causing this noise? I did replace the tensioner on the drive belts a short time ago but it seems to spin freely and easily. This machine does have metal tracks on it and they seem to have the correct amount of slack in them/ the hydraulic tank is at the full level and the breather on the tank is clear. I am at a loss to diagnose this issue and cure it! Thanks for your review and comments!

How did you checked if the belt is correct tensioned?
Could you make a video?