A. The same as a simple engine with separate exhaust valve open, so
engine will work simple instead of compound.
17. Q. What may be done to shut off steam pressure from the steam chest
and low-pressure cylinder?
A. To shut off steam from the low-pressure chest, pull out the rod that
runs through the dash-pot as far as possible and fasten it in this
position. Then open the separate exhaust valve.
18. Q. Is it important that air be pumped up on a two-cylinder compound
before the engine is moved? Why?
A. Yes. Because the separate exhaust valve is opened by air pressure and
the engine cannot be simpled without sufficient pressure.