pulley or a little cog wheel is loose. A quick eye will locate
the trouble before you have time to stop. If the belt is loose, the
governor will lag while the engine will run away. If the wheel is
loose, the governor will most likely stop and the engine will go on a
tear. If the jam nut has worked loose, the governor will run as usual,
except that it will increase its speed as the speed of the engine is
increased. Now any of these little things may happen and are likely to.
None of them are serious, provided you take my advice, and remain near
the engine. Now if you are thirty or forty feet away from the engine
and the governor belt slips, or gets unlaced, or the pulley gets off,
about the first thing the engine would do would be to jump out of the
belt and by the time you get to it, it will be having a mighty lively
time all alone. This might happen once and do no harm, and it might
happen again and do a great deal of damage, and you are being paid to
run the engine and you must stay by it. The governor is not a difficult
thing to handle, but it requires your attention.

Now if I should drop the governor, you might say that I had not given
you any instructions about how to regulate it to speed. I really do not
know whether it is worth while to say much about it, for governors are
of different designs and are necessarily differently arranged for
regulating, but to help young learners I will take the Waters governors
which I think the most generally used on threshing and farm engines.
You will find on the upper end of the valve or governor stem two little
brass nuts. The upper one is a thumb nut and is made fast to the stem.
The second nut is a loose jam nut. To increase the speed of the engine
loosen this jam nut and take hold of the thumb nut and turn it back
slowly, watching the motion of your engine all the while. When you have
obtained the speed you require, run the thumb nut down as tight as you
can with your fingers. Never use a wrench on these nuts. To slow or
slacken the speed, loosen the jam nut as before, except that you must
run it up a few turns, then taking hold of the thumb nut, turn down
slowly until you have the speed required, when you again set the thumb
nut secure. In regulating the speed, be careful not to press down on
the stem when turning, as this will make the engine run a little slower
than it will after the pressure of your hand is removed.

If at any time your engine refuses to st