gnu
Guest
Cylinder bars should be paired by weight, if not weigh them on a reasonabyt accurate scale....As you install them, bar numbers 1 and 6 install across from each other, and are opposites (1 is left, and 6 is right, or vice versa)...next is numbers 2 and 7 (n2 is opposite direction from n1, n7 is opposite direction to n6) and on around the cylinder....I like to weigh them and lay them in groups of 5 on the floor..n1 is the first bar in the first group, n6 is the first bar in the second group and is the opposite direction from n1 and on until they've been laid out....This lets you put them on the cylinder in order, instead of having to spin the cylinder over several times....After they're installed, look for a spot to which the cylinder consistently rolls down and watch for fast rollback...To determine the exact heavy spot, roll that area to the top---The point where it will exactly balance without rolling down is the heaviest point...I tape weights to the exact opposite side of this spot until the rollback, etc. are gone...A lot of times, this spot will be between bars, since the cylinder spiders aren't exactly well balanced...In that case, tape weights to the cylinder bars on either side of it...less weight to the lower cylinder bar, more weight to the higher cylinder bar....If you have a problem installing weight, you can tack weld to the backside of the cylinder bar...9600 bars and cylinders seem to be more mismatched than others, and can sometimes require up to around a pound or so of weight for precise balance...DO NOT WElD WEIGHTS TO THE CYlINDER SPIDERS (This can cause real problems when you change bars again)....Hope this is some helpTerry