Kubota B7100HST-D loader hydraulic lines fittings - Rust?

TerryKing

Member
Lifetime Member

Equipment
B7100HST-D
Hi Guys,
I'm about to replace all 8 cylinder lines on my B1630 FEL. I'm concerned about force on the fittings to dis and reassemble. There is some corrosion on some of them. Here's a cylinder fitting:

HydraulicFitB7100HST-01.JPG

These are Swivel end fittings so they have to turn against the rest of the fitting. Should I put some PB or penetrating oil on that section for a bit before putting the wrench on it??

And what do you call this type of fitting that threads into the cylinder and has a jam nut and gasket/washer??

Next here's a metal line to hose fitting:

HydraulicFitB7100HST-02.JPG


Same question. I WILL have two right-size wrenches to support the fitting when loosening.

And: What might I put ON these fittings to protect in the future?? Might do periodic wipe/spray with FluidFilm or Oil??

OK, The hoses ain't BROKE but they really look bad, peeling etc. So I want to FIX them.. Any comments, suggestions, critique welcome...