/ 1997 T5C hydraulics Problem #21
- Sep 26, 2017
- Cameron, North Carolina
- 1964 MF 35 Industrial Utility,Turf (gas) 1997 T5C Terramite
"Last owner used hydraulic fluid" instead of oil. I suggest you call one of the places that specializes in parts for these machines and ask them what goes bad when someone uses hydraulic fluid instead of oil.
They have probably seen this enough that they may be able to narrow down what you need to look for.
Once someone has put hydraulic fluid in the system, what do you have to do to clean the system enough to make it reliable again? I don't know myself, but I'd be asking what hydraulic fluid does to the entire system and what has to be done. Short of taking the whole system apart and cleaning it piece by piece, how would you flush all of the hydraulic fluid out? Does it have to be 100% cleaned of all hydraulic fluid or can you flush it enough by repeated oil changes say run it to operating temperature, cycle the systems and then change the oil. Repeat. How many times?
These are some questions I'd be asking. Especially if the residual hydraulic fluid in the system can tear something else up if it hasn't adequately been dealt with.
OK, checked at the front curl, 2000 psi, both ports. Checked RH arm 2000psi. Rechecked at both ports on power steering. If I dang near stand on the steering wheel pulling it so hard I barely get a 500psi reading.check pressure at one of the loader ports and deadhead the joystick while watching the gauge.
OK, now I am confused. What area? Steering Box or Transmission? Gear pump is attached to Trans. The hose to the Steering Box comes from the front underneath of the trans, opposite end of the gear pump.maybe steering orbital control is out also if your pump has a priority valve it or the Orings could be bad.