cuslog
Member
Clark 720 OS 20 Ton RT- Roughly 1975 vintage.
Winch sprung a hydraulic oil leak yesterday, just before last lift of the day.
Leaking from what appears to be some kind of pressure relief. At first, I thought it was a grease nipple (7/16" hex) but when I put my fingers on it, oil poured out more, like it was loose, about to fall out. Tried to tighten it but it just turns. Got my fingernails under the edges and it pulled out a bit and retracted like it was spring loaded.
This looks to be on the horizontal centerline of the winch drum (like its on the centerline of the main shaft ), on the end opposite the hydraulic motor. Still seems to work OK but losing about 1 drop every second, so, a fairly significant leak.
I'm done for the day now, but need to work it again on Tuesday (about 3 days away).
I'm going to the jobsite now, to investigate further, any advice / comments welcome.
Thanks,
Howard
Winch sprung a hydraulic oil leak yesterday, just before last lift of the day.
Leaking from what appears to be some kind of pressure relief. At first, I thought it was a grease nipple (7/16" hex) but when I put my fingers on it, oil poured out more, like it was loose, about to fall out. Tried to tighten it but it just turns. Got my fingernails under the edges and it pulled out a bit and retracted like it was spring loaded.
This looks to be on the horizontal centerline of the winch drum (like its on the centerline of the main shaft ), on the end opposite the hydraulic motor. Still seems to work OK but losing about 1 drop every second, so, a fairly significant leak.
I'm done for the day now, but need to work it again on Tuesday (about 3 days away).
I'm going to the jobsite now, to investigate further, any advice / comments welcome.
Thanks,
Howard
