Don_Curley
Bronze Member
As background, I've got a B2910 with a BL46090A backhoe. The tractor (new as of June 2001) has 237 hours on it, and I estimate that the backhoe has approximately 80 to 100 hours on it.
Anyway, when doing some rather "easy" backhoeing a couple of days ago, I started getting a forceful hydraulic fluid leak from the line that controls the retracting circuit for the dipper (i.e., drawing-back or "crowding-in" the dipperstick). It's hard to exactly tell from the heavy canvass covering on the line, but the leak appears to be on the underside of the line right where it bends around the stand-off "bar" that routes all of the clustered boom/dipper/bucket hydraulic lines down towards the base of the boom assembly. It's ironic, but when I took delivery on this tractor, I noticed how relatively tight this cluster of hydraulic lines was as they tightly curved-around this bar, and despite the heavy canvass anti-chafe covering, I wondered if this arrangement might prove to be to much of a rubbing and chafe point. Here's my questions ...
1) Does a backhoe dipper hydraulic line failure at approximately 80 to 100 hours of backhoe operation seem to be a bit premature to anyone? (... it did to me)
2) Since I am located too far away from any Kubota dealer for them to transport and perform the service, I plan to order and replace the bad line. This looks like a fairly straightforward job on the surface. Is there anything I need to be aware of or look out for in replacing this line? (And luckily, I have a replacement filter and hydraulic fluid for the backhoe, which I will change-out as part of the line replacement).
3) Has anyone else had a similar problem? I ask, as I am concerned with the rest of the clustered backhoe hydraulic lines that get bent over that bar as they transition down to the base of the boom. (In other words, if one has worn-through, how long before the rest of them start going in the same manner)?
Thanks in advance,
Don
Anyway, when doing some rather "easy" backhoeing a couple of days ago, I started getting a forceful hydraulic fluid leak from the line that controls the retracting circuit for the dipper (i.e., drawing-back or "crowding-in" the dipperstick). It's hard to exactly tell from the heavy canvass covering on the line, but the leak appears to be on the underside of the line right where it bends around the stand-off "bar" that routes all of the clustered boom/dipper/bucket hydraulic lines down towards the base of the boom assembly. It's ironic, but when I took delivery on this tractor, I noticed how relatively tight this cluster of hydraulic lines was as they tightly curved-around this bar, and despite the heavy canvass anti-chafe covering, I wondered if this arrangement might prove to be to much of a rubbing and chafe point. Here's my questions ...
1) Does a backhoe dipper hydraulic line failure at approximately 80 to 100 hours of backhoe operation seem to be a bit premature to anyone? (... it did to me)
2) Since I am located too far away from any Kubota dealer for them to transport and perform the service, I plan to order and replace the bad line. This looks like a fairly straightforward job on the surface. Is there anything I need to be aware of or look out for in replacing this line? (And luckily, I have a replacement filter and hydraulic fluid for the backhoe, which I will change-out as part of the line replacement).
3) Has anyone else had a similar problem? I ask, as I am concerned with the rest of the clustered backhoe hydraulic lines that get bent over that bar as they transition down to the base of the boom. (In other words, if one has worn-through, how long before the rest of them start going in the same manner)?
Thanks in advance,
Don
