silent_galaxy
New User
We picked up a used 4490 with around 3.5k hours?for some tillage jobs using a 20ft disc.? The first issue we had was with the alternator going?out causing crab steering issues which made us park it.? This spring we put a new alternator in it and fixed the crab steer issues.? Then the hydraulic issues started.? When lifting the disc while the hyd.?oil was colder it seemed to lift ok but a little slow.? As the oil warmed up the lifting got slower and slower each pass until it wouldn't lift at all (Case Hy-Tran Hyd Oil).? A neighbor recommended to test how much pressure we got coming out of the SCV's using a liquid filled pressure gauge and to change out the hydraulic filters.? I changed filters and?tested each and they ranged from 850-900lbs when the tractor was warm, slightly higher when cold.? I've been told it should be around 1200??
How would you recommend a guy trouble shoot an issue like this moving forwards?? I know very little about hydraulics.? I wanted to isolate the issue to lower the labor fees of getting it tested at a shop.? Could be the hydraulic pump going bad, or a hydraulic bypass issue but is there ways of testing that myself?
I'll add some pics I snapped.
Any advice for a new Case?guy?
How would you recommend a guy trouble shoot an issue like this moving forwards?? I know very little about hydraulics.? I wanted to isolate the issue to lower the labor fees of getting it tested at a shop.? Could be the hydraulic pump going bad, or a hydraulic bypass issue but is there ways of testing that myself?
I'll add some pics I snapped.
Any advice for a new Case?guy?