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Kubota SVL75-2 Weak/Slow Boom Lift

FDSHET

FDSHET

New Member
Joined
Sep 12, 2024
Messages
3
Location
Lindsay Ontario
I have a Kubota SVL75-2 In the shop. Came in with weak boom lift function accompanied by a chatter sound. All other functions are working perfect and will put good ground pressure down. Left boom sitting up for a few days while I completed other projects and it only lowered maybe 6”. Customer wanted full service done, so hydraulic oil and filters are all fresh. Completely drained tank and did both internal filters aswell. No signs of external leaks whatsoever, oil is not getting aerated or contaminated after running it for a few hours. Pulled boom lift spool and inspected, no sign of debris or damage. Swapped the boom lift and boom lower pilot lines and symptoms did not follow. Not very well versed in the Kubota world but I figured it should be simple enough being hyd over hyd functions. Looking for any insight on what else to check
 
Last edited:
N

nikthewho

Well-Known Member
Joined
Oct 23, 2024
Messages
152
Location
Delhi
Occupation
Hydraulic Engineer
FDSHET said:
I have a Kubota SVL75-2 In the shop. Came in with weak boom lift function accompanied by a chatter sound. All other functions are working perfect and will put good ground pressure down. Left boom sitting up for a few days while I completed other projects and it only lowered maybe 6”. Customer wanted full service done, so hydraulic oil and filters are all fresh. Completely drained tank and did both internal filters aswell. No signs of external leaks whatsoever, oil is not getting aerated or contaminated after running it for a few hours. Pulled boom lift spool and inspected, no sign of debris or damage. Swapped the boom lift and boom lower pilot lines and symptoms did not follow. Not very well versed in the Kubota world but I figured it should be simple enough being hyd over hyd functions. Looking for any insight on what else to check
Click to expand...
Can you share the hyd. schematic?
 
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