I have an SR Custom triple crankset (square spindle) and I haven't been able to find exact torque specifications for the cranks. Barnett's Manual says "In absence of manufacturer’s recommendations, torque to 350 inch-lbs" and I tried that. But afterward, it wouldn't shift to the smallest chainring any more. It [i]almost/i] shifted, but not quite. Apparently the chainrings are now slightly closer to the frame than they used to be. So I pulled the crank again and re-torqued it to 300 inch-lbs, plus adjusting the lower limit screw on the front derailleur a bit. Now it shifts correctly and the crank seems tight enough.
Did I do the right thing? Should I have left the crank torqued to 350 inch-lbs and just loosened the FD limit screw more? Also, the non-drive side crank is still torqued at 350 inch-lbs. Should I leave it alone or reduce it to match the drive-side crank?