Skip to main content
Topic: Hydraulic system oil/filter change (Read 502 times) previous topic - next topic

Hydraulic system oil/filter change

All who are interested,
            Drained it from the rear port of the hyd pump and it would require a 1 ¼"  open end wrench but I used my large Cresent and just hit it with dead blow hammer to loosen and then also to tighten. I left the fill cap on and tight to hold the oil from coming out real fast. Not sure it mattered but the oil came out slow and very controlled into a 5 gallon bucket blocked up to within a few inches below the connection even after I took the fill cap off. Took about 10 min to drain the 4 gal. Drained oil, removed filters, reinstall new filters, fill with oil before putting cover with new seal/gasket back on. It drained about 4 gallons and that is what I put back in (Delo 15W40 same as engine oil)
Filter part number is  Nelson 84101B  3 filters required
New gasket  Cummins# 999-55A
Total time of about 30 min.
Thanks to all who went before me and supplying P/N's, tips, and advice.
Rick