A. When the lost motion becomes so great as to endanger the breaking of
connections.
104. Q. How do you proceed to pack a driving box equipped with a grease
cellar?
A. Remove the filling plate on the inside of the cellar. Pull down the
indicators and follower plates, insert the grease between the follower
plate and perforated plate; when full, replace the filling plate on the
inside of the cellar and allow the spring and follower plate to force
the grease through the perforated plate to the journal.