Hyd oil change on GTX 2100-now not moving
 

Changed hydraulic oil and filter on GTX 2100.refilled with 5 quarts of cub cadet oil and filter. Check oil level and just above the fill mark but I knew the filter was probably not full. I eased around the drive way in forwards and reverse and thought all is good! I reinstalled mower deck and rechecked the oil level and about half way between add and full. Started engine and mower would not travel either direction. The deck still raises and lowers and steering seems fine. I may have heard something just a little different sounding when I tried to move forward. Any ideas why it worked for 5-8 minutes and now nothing?

Did you pre-fill the filter before installing ?
Alternate pushes on forward and reverse for a minute or two you may have an air-lock
Oz

What did you use for a filter?:bigthink:

Looking at the parts breakdown for a GTX2100 the deck lift and steering are electric so the hydro has nothing to do with those funtions

Hyd oil filter #923-3014. I did not prefill the filter.

Thanks, but working the forward and reverse did not help. The forward has hardly any resistance to pushing

I have jack the rear end up and find that that there is no difference in rotation resistance whether the transmission release lever is engaged or in free wheel position. Could this lever be stuck in not engaged position ?

Is the transmission release/disengage lever on or off ?
Have you let the mower run for a few minutes before attempting to move ?
It sounds like the hydro is not primed
I cannot think of anything else apart from an air-lock in the filter
This is something to try partially undo hydro filter with engine running and see if you get air or oil leak out , but be very careful please , if air that may clear the air-lock
They do this with some Auto transmissions to make sure they are full , by allowing oil to drain out whilst running

I jacked up rear off the ground. I loosen filter while running and just oil came out but not really any pressure…just an oil stream. No appearance of air bubbles in the oil. I let probably a half quart of oil. I was pushing foot pedals and no difference in flow of stream whether forwards, reverse, or neutral. I wonder if there should have been at least some pressure difference at the filter.

I am beginning to think there is a pump issue.

Were you having any issues before the fluid change?

No issues. It had 247 hours on meter and about 20-30 were from key in on position for a couple days. No leaks, no noises, and pulled fine.

I recently inspected the transmission engaged/disengage button (for lack of a better name) and it can be pushed in with a finger and pops right back out when released. I thought maybe is was stuck in but not the case.