We have always relamped our building at 3 years, 280 bulbs
[ in theroy]
I was told they lose about 50 % of there light by then .
Good luck in your search
For your preladed set up a dial indicator on the end of the shaft, and add enough shims till you get some freeplay. Then add the amount of free play to the amount of preload you want, and remove that amount of shims. If I remember right from my time at John Deere most of the time it was around...
Just trying to find a source ahead of time. I think I got the latest problem solved we been having a lot of problems w/ the cylinders on the PLF as far as speed or lack of. Air pressure is good, seals in the cylinders are good and well lubed, no air leaks or pinched air lines, piston and the...
I don't know about the legal end of it but the main reason for not using galvanized parts on gas lines is it tends to flake off and can plug up the small passages. If it's in good shape you might be ok. If there's room you could install a drip leg to catch the flakes.