imported_brian_m
Cast Iron
- Joined
- Jun 25, 2006
- Location
- Oregon
I can usually work things out but this problem is beyond my experience.
I have just replaced the four Bijur metering valves on the apron lubrication of my 1709, Bijur type FJB 0 meters. I have confirmed adequate lubricant flow as far as the manifold where the four metering units are mounted but I can't seem to get any flow beyond the valves when they are in position. All of the 5/32 copper lubrication lines have been replaced and confirmed as clean and free flowing. The meters are installed the right way around. The lubricant pump is properly primed and flow is visible through the provided view port.
If I remove a metering valve from the manifold lubricant flows freely from the distribution block. If I replace all the metering valve there is no apparent flow from the open end of the attached copper tubes on any of the distribution lines. If I replace a metering valve with one that has had the internals removed I see flow from its line. So, this does not leave many options.
a) Could it be that the flow is much lower than I expected and it is so low it is not visible (although I have pumped the oil by cranking the carriage for a considerable time).
b) Although there is flow for an open line the pump output pressure is too low to force oil through the metering valves.
Does anyone know just how much lubricant I should see from a metering valve? Is correct flow obvious for the type 0 valve? Can we express it in drips per minute for example?
Thanks, Brian
I have just replaced the four Bijur metering valves on the apron lubrication of my 1709, Bijur type FJB 0 meters. I have confirmed adequate lubricant flow as far as the manifold where the four metering units are mounted but I can't seem to get any flow beyond the valves when they are in position. All of the 5/32 copper lubrication lines have been replaced and confirmed as clean and free flowing. The meters are installed the right way around. The lubricant pump is properly primed and flow is visible through the provided view port.
If I remove a metering valve from the manifold lubricant flows freely from the distribution block. If I replace all the metering valve there is no apparent flow from the open end of the attached copper tubes on any of the distribution lines. If I replace a metering valve with one that has had the internals removed I see flow from its line. So, this does not leave many options.
a) Could it be that the flow is much lower than I expected and it is so low it is not visible (although I have pumped the oil by cranking the carriage for a considerable time).
b) Although there is flow for an open line the pump output pressure is too low to force oil through the metering valves.
Does anyone know just how much lubricant I should see from a metering valve? Is correct flow obvious for the type 0 valve? Can we express it in drips per minute for example?
Thanks, Brian