I had an excavator working on my property a year or so ago, and he kept popping hoses on this track-hoe. Turns out it was the pressure SENSOR that was bad, not the hose itself. When the sensor failed the pump just kept ramping up pressure to the system. Not sure if your tractor has a pressure sensor for the hydraulics (I would think it does), but you might want to check that out.
Good luck!
The Max has nothing fancy like an open center pump, or pressure sensors. real basic non adjustable pressure relieve valve spring and seat.
Max 28 has very low pressure (2100 psi) max) to start and SAE #5 (5/16) hoses & Fittings
They flow like crap.
Unless you hit or shock the loader, it should not break.
Hoses are funny, they get stressed from bending and not all hoses are born equal.
I just changed my hydraulic fluid to a good semi synthetic. (5 gal of Duraguard Universal) then 3 quarts of Komatsu fluid as make up.
It does not seem to flow much better in the cold.
My hydraulics are also slowed by having 1526 Loader curl cylinders on the Max28 as they are larger volume.
But hydraulics are not that fast on the stock loader lift cylinder when cold either.
I started to change the front axle fluid. 290 hours on the machine and I never changed it at 50 hours.
Manual said it should be hydraulic oil. what was in there was clean gear oil, no metal, so I did not change the gear oil, I just topped it off what little I changed and will wait for warm weather to let it drain well.
