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    Pressure relief valve bh77 replacement

    Also out of A b c d which line actually lifts dipper boom? I’m mechanicaly inclined just trying to save some cash last time at dealer was 1300
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    Pressure relief valve bh77 replacement

    Also I’m saying the one on far left is dipper boom? After l I went to dealer and ordered part to make sure I got the right one and I have 90 think I need 110 tractor was at camp when I ordered so I couldn’t trace hose line to valve block
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    Pressure relief valve bh77 replacement

    I put part# 90 in last night and wasn’t my problem was kinda sure it would be. My dipper boom started not responding occasionally right after the main boom was fixed at dealer with same part #90. So when I try to lift dipper you can see it try to move maybe 1/8 on cylinder. Could it be part 110...
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    Pressure relief valve bh77 replacement

    can I just unscrew pressure relief valve and replace on bh77 dipper. I’m not sure if it will be under pressure cylinder is completely closed $500 part don’t want to damage anything