B7510 HST Surges/Jerks

InTheWoods

Active member

Equipment
B7510/FEL, B7100D, ZD18, ASK-R130
Nov 17, 2023
202
156
43
Indiana
I've had this tractor for a bit over a year. It has 1000 hours. It seems to surge when I take off slowly. From a standstill, I can push the forward pedal a little and it moves evenly and slowly, then once I get to something like 20% pedal, it surges, i.e. jerks a bit. Same in high and low range. Not a massive jolt, but definitely noticeable.

It's behaved this way since I've had it and doesn't seem to be getting any worse. New Super UDT2 and filters made zero difference. The fluid looked clean when I drained the old stuff out.

Common? Red flag? Any thoughts?
 
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mendonsy

Active member

Equipment
B7500HST/LA302
May 28, 2012
355
33
28
Mendon, NY
My B7500 does the same thing. I think it is just the way the transmission works.
 
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InTheWoods

Active member

Equipment
B7510/FEL, B7100D, ZD18, ASK-R130
Nov 17, 2023
202
156
43
Indiana
^Thanks - anyone else with this experience?

I should note that I was mistaken about this occurring in both high and low ranges. I notice it only in high.
 
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