xj 2025 hydraulic problem

hturner12 · Oct 21, 2018

Scojen7 said:
OK the 20 is inline with the drive shaft. Now today is a wonderful Florida day low 80's mild breezy. Temp on the water is approximately 30% on the gauge. Yet again it's bogging out. The radiator screen is clean it got so bad the thing would barely go up a very small hill. I maintain its still the pump. Me, now old retired toolmaker, USAF 69*74 mos A4371C qorked for the navys after at NNSY Portmouths Va. hydraulic tech with pumps big enough to pick up airplanes and pnuematic systems bedded so deep on sub surface systems the rats wouldn't go. last a Tool & Die with the NARF in Norfolk plus CNC and programming. I kinda now with the mech at the store not getting my point across. And so it goes back to the shop.

Have you change your fuel filter? Look at the ootom of the filter for water. It does not take much water to kill performances. Check your clamps with a socket not screwdriver. That was my problem in a diesel you can get air and not see a leak. Crack one line at the injector pump try to start the tractor you will know if it air you should get a steady flow of fuel It may or may not start if it does as soon as you see a steady stream tighen the line. If it does not start crank till you see the steady stream just dont overheat the starter.
Since I did that I have not had engine problems

The factory does not do a good job on tighten clamps. When I had my steering problem like you I was leaning toward pump, till I started checking every clamp and fitting. One was on the big line under the tractor another at the pump I had no leaks. Check the fittings under the joystick for the bucket I changed the fluid way early it was very dark.

I was a B52 crew chief.

On this tractor the KIS formula is at it best.

jdom84 · Oct 26, 2018

I'm having a hard time understanding the issue... It bogs the engine after the fluid gets hot or the hydraulics quit working? it bogs when trying to go up hills? It works fine when the PTO or Loader is being used?

Not sure how thinning fluids will cause a pump to bog the engine, instead it would have less load on the engine. but If you have a stuck pressure relief valve and something else blocking the hydro fluid return then it might bog or kill the engine. Also a stuck valve or restriction in a hydraulic system will cause extreme heat. Is the three point working correctly?

Just a guess here and I assume you are saying it bogs/kills the engine when you are trying to move the tractor. And if I understand correctly, your dealer said it was missing the fan blades on the shaft from the engine to the HST? If you have been running an HST with out a fan for 200 hours, the HST is probably toast.

Scojen7 · Oct 27, 2018

jdom84 said:
"It bogs the engine after the fluid gets hot or the hydraulics quit working? it bogs when trying to go up hills? It works fine when the PTO or Loader is being used? " All functions in all PTO and loader
" Is the three point working correctly? " Yes

Just a guess here and I assume you are saying it bogs/kills the engine when you are trying to move the tractor. And if I understand correctly, your dealer said it was missing the fan blades on the shaft from the engine to the HST? If you have been running an HST with out a fan for 200 hours, the HST is probably toast.

More like 10 hrs the 200 was a warranty service.