sultan
Senior Member
My excavator is giving me its first real issue since I bought it in May. When I bought the machine, I found that the right track motor was leaking hydraulic oil, so I opened up the cover and found that the top and bottom relief valves (#21 on motor diagram) were leaking oil. I took the relief valves out and found that the largest o-ring (#2 on the relief valve diagram) was completely shredded on both relief valves.
I replaced the o-rings for the top and bottom valves with the proper o-rings, and it worked fine from May till today when I noticed a small puddle under the right track motor.
The exact same two o-rings were shredded again on the same right track motor. Why is my machine shredding these o-rings?
Edit: Attachments aren't working, so I'll post links to the diagrams instead
Brake valve/Track Motor Diagram
Relief Valve Diagram
I replaced the o-rings for the top and bottom valves with the proper o-rings, and it worked fine from May till today when I noticed a small puddle under the right track motor.
The exact same two o-rings were shredded again on the same right track motor. Why is my machine shredding these o-rings?
Edit: Attachments aren't working, so I'll post links to the diagrams instead
Brake valve/Track Motor Diagram
Relief Valve Diagram
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