Using spanner wrench, unscrew stuffing box (2) and carefully remove piston rod (3) and attached components
from cylinder (4).
When placing piston and attached components into a vise or other suitable
holding device, be sure to protect the polished surface of the piston or damage to
equipment may result.
Place piston rod (3) into a machinist's vise with soft-jaw vise caps and secure in place. Wrap entire assembly,
except parts to be ground, with burn cloth or equivalent to protect parts.