A. Block both link blocks in same position of links, and in such a
position as to give port opening enough to start train and control speed
by throttle.
7. Q. If main reach rod, or middle arm to reverse shaft fail? If both
auxiliary reach rods fail?
A. Block link blocks in full valve travel, controlling power and speed
with the throttle.
=LUBRICATION=
1. Q. What produces friction, and what is the result of excessive
friction?
A. Friction as considered in locomotive service is produced by one body
being rubbed across the surface of another when they are held in
contact by pressure, and the result of excessive friction is heat more
or less intense and the destruction of the journal and its bearing or
the roughening of the sliding surfaces.