Ratmotorhead
Well-Known Member
Hello,men I have been working with my 4300c linkbelt this summer and I have been getting a bog when I pull in the dipper. I put my guages on dipper in and out and when I pull in the stick in to relieve both my guages rise to about 3000 psi, then dipper in guage goes to 5000psi and stalls. I cannot get any adjustment out of dipper in or out, so I switched relief valves from boom since they are same part number and adjust up to 4500 like they should and I get the same result. Since both guages go up upon moving dipper in that is telling me it is deadheading itself because of a worn spool or bad packing or gouge in dipper cylinder. Have any of you tried to isolate either or by capping the dipper in line hose and see if it goes to relief? If it goes to relief that tells me it is bypass to dipper out side of cylinder, if it still only goes to 3000psi and won't adjust that tells me it is bypassing at spool in hyd valve. Any thoughts guys. By the way, the hyd pumps, bucket, and boom, and pilot pressure all adjust to my book specs.