J_J
Super Star Member
- Joined
- Sep 6, 2003
- Messages
- 18,952
- Location
- JACKSONVILLE, FL
- Tractor
- Power-Trac 1445, KUBOTA B-9200HST
Yes, it could be set 40 psi over.
If the service man had a manual pump, he could pump up the pressure greater than pump pressure, adjust it to 40 psi over the tractor pump, and insure the relief for the valve never activates, or activate a cyl, and when the valve starts to relief, turn the screw some more, about a quarter turn. If it is shimmed , add shims to go beyond the pressure required to activate the valve.
If you have the gage, and you know the pump max psi, then you can adjust all the reliefs on the tractor the same, and be done with it. If you set them at pump pressure, that is the max pressure you will be using, and about the best you can do for the hydraulics.
Have you had the chance to operate another BH, with same pressure to determine if it has similar performance.
You don't need the service man now that you have a gage. You do have to know the pump rated pressure limit.
If the service man had a manual pump, he could pump up the pressure greater than pump pressure, adjust it to 40 psi over the tractor pump, and insure the relief for the valve never activates, or activate a cyl, and when the valve starts to relief, turn the screw some more, about a quarter turn. If it is shimmed , add shims to go beyond the pressure required to activate the valve.
If you have the gage, and you know the pump max psi, then you can adjust all the reliefs on the tractor the same, and be done with it. If you set them at pump pressure, that is the max pressure you will be using, and about the best you can do for the hydraulics.
Have you had the chance to operate another BH, with same pressure to determine if it has similar performance.
You don't need the service man now that you have a gage. You do have to know the pump rated pressure limit.