753 jerking/bucking unstable motion

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Mrspd205

New member
Joined
Aug 22, 2022
Messages
1
I have a 753 and when using the left side control, turning to the right or forward and reverse, at a slower speed( full throttle also) it has a jerky motion. But when using the right side controls everything is smooth like normal operation. Looking for some guidance on where to start looking, motor, pump, etc?
 
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River Fluid Power

Well-known member
Joined
Aug 18, 2022
Messages
107
I have a 753 and when using the left side control, turning to the right or forward and reverse, at a slower speed( full throttle also) it has a jerky motion. But when using the right side controls everything is smooth like normal operation. Looking for some guidance on where to start looking, motor, pump, etc?
The first thing I would check is the control linkage on the pump. Sounds like it is loose somewhere. Any where from the trunnion shaft on the pump to the control stick.
 
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