Keep blowing final drive seals. The last on cracked the case cover. Hydraulic oil in the gear box. I was told by the final drive repair man that 331 and 334 has this issue. Apparently a valve malfunction causes pressure to go through the return lie to the final drive blowing the seal. He said if I run the machine there would be pressure in the return line. Anybody know which valve? Is this possible? I have run the machine with the covers off and get no pressure on the return lines. I have run all the operations and still no pressure....
This is the third seal in 8 months. This time the controls got stiff and Bang. There goes the cover plate and here we go again.
Thank you for any advise.
This is the third seal in 8 months. This time the controls got stiff and Bang. There goes the cover plate and here we go again.
Thank you for any advise.