RancherGuy
Gold Member
- Joined
- Feb 2, 2010
- Messages
- 301
- Location
- Rosenberg, TX
- Tractor
- Kubota L3710; JD 5425, 6105R, 7130-P; IH 1086
I have a New Holland BR750 round baler. Bale density has never been adjusted for 13 years that I have had it, and density seemed good last year. This year, not so good. Bales are soft.
Looking at the operators manual and checking the baler, there is what looks like a density hydraulic cylinder and an adjustment knob. Manual says when tailgate is up the gauge should show pressure. Currently the pressure gauge for it reads zero whether the tailgate is up or down. Thus I believe the baler is running the lowest possible density when it operates = failure.
I am a bit perplexed as to how this system actually works.
(1) Looks like the cylinder is connected to a belt tensioning arm. Yes? When it works, does it pull or push the arm? Is it supposed to change length as the bale diameter grows or stay fixed length?
(2) The in & out port on the cylinder are connected together with a block for the adjustment knob and the gauge measures it's hydraulic pressure. What does the knob do?
(3) The unit seems to be self-contained. That is, it seems to be a stand-alone hydraulic cylinder, with no reservoir and no connection to any hydraulics from the tractor. How is this system to be maintained for operational health?
(4) Oil wetness exists on the cylinder's hydraulic lines. I assume it to be from itself, as opposed to leakage from the nearby tailgate cylinder. Might this mean it is leaking and has lost its oil?
In other news, the two tailgate cylinders had to have their seals replaced this year because both blew out their seals. Could it be this density cylinder is at an age where it's seals need replacement? If so, once replaced what do I do regarding hydraulic oil for it?
Thanks for any insight you may be able to provide.
Looking at the operators manual and checking the baler, there is what looks like a density hydraulic cylinder and an adjustment knob. Manual says when tailgate is up the gauge should show pressure. Currently the pressure gauge for it reads zero whether the tailgate is up or down. Thus I believe the baler is running the lowest possible density when it operates = failure.
I am a bit perplexed as to how this system actually works.
(1) Looks like the cylinder is connected to a belt tensioning arm. Yes? When it works, does it pull or push the arm? Is it supposed to change length as the bale diameter grows or stay fixed length?
(2) The in & out port on the cylinder are connected together with a block for the adjustment knob and the gauge measures it's hydraulic pressure. What does the knob do?
(3) The unit seems to be self-contained. That is, it seems to be a stand-alone hydraulic cylinder, with no reservoir and no connection to any hydraulics from the tractor. How is this system to be maintained for operational health?
(4) Oil wetness exists on the cylinder's hydraulic lines. I assume it to be from itself, as opposed to leakage from the nearby tailgate cylinder. Might this mean it is leaking and has lost its oil?
In other news, the two tailgate cylinders had to have their seals replaced this year because both blew out their seals. Could it be this density cylinder is at an age where it's seals need replacement? If so, once replaced what do I do regarding hydraulic oil for it?
Thanks for any insight you may be able to provide.