Leslie Controls AEROFLOW SUPPLEMENT Chesterton Live Loaded Packing - Manual (Page 3)

MAINTENANCE
1. Check the condition of the following components prior to assembly:
-
A 10 to 32 RMS (7.5 to 24 Ra) stem finish is required.
- The stuffing box bore should be 125 RMS (94 Ra) or better finish.
- The stem run out should not exceed +/- .010 TIR/Ft.
- The stuffing box (packing bore) must be clean, i.e. completely free of any previous packing or
foreign material.
- The valve stem must be clean, free of nicks, scratches and burrs.
Check gland adjustment after a few hours of service. Retighten to the values given above as necessary.