I believe I know the cause of the problem. I replaced the hose due to leakage through the hose jacket. I replaced the o-ring at the fitting with o-rings that I ordered. When I ordered the o-rings I specified Nitrile/Buna and Duro 90. I found the original invoice and noticed the 0.614 x .070...
I appreciate the reply. You are correct if the hose is for the output of the front hydraulic pump. My mistake it is a hose for the hydraulic system piping (Center Pivot). Hose part number is 85825187 and o-ring part number is 87016S95. Even if the fitting is incorrect, the 0.614" x 0.070"...
I have a 2005 New Holland LB75B backhoe. I have a continuing hydraulic leak from the hose that attaches to the output of the hydraulic pump. It utilizes an o-ring to seal pressure. I have replaced the o-ring and there is no leakage. However after about 4 hours of operation, the hose at the...