icators, the oiling system, the water supply to the
glands and the oil-cooling coil, the pilot valve, etc. He must see that
the oil is up in the reservoir and showing in the gage glass provided
for that purpose, and that the oil is flowing freely through the
bearings, by opening the pet cocks in the top of the bearing covers. An
ample supply of oil should always be in the machine to keep the suction
in the tank covered.

Care must be taken that the pump does not draw too much air. This can
usually be discovered by the bubbling up of the air in the governor
case, when more oil should be added.

It is well to note from time to time the temperature of the bearings,
but no alarm need be occasioned because they feel warm to the touch; in
fact, a bearing is all right as long as the hand can be borne upon it
even momentarily. The oil coming from the bearings should be preferably
about 120 degrees Fahrenheit and never exceed 160 degrees.

It should generally be seen that the oil-cooling coil is effective in
keeping the oil cool. Sometimes the cooling water deposits mud on the
cooling surface, as well as the oil depositing a vaseline-like
substance, which interferes with the cooling effect. The bearing may
become unduly heated because of this, when the coil should be taken out
at the first opportunity and cleaned on the outside and blown out by
steam on the inside, if this latter is possible. If this does not reduce
the temperature, either the oil has been in use too long without being
filtered, or the quality of the oil is not good.

Should a bearing give trouble, the first symptom will be burning oil
which will smoke and give off dense white fumes which can be very
readily seen and smelled. However, trouble with the bearings is one of
the most unlikely things to be encountered, and, if it occurs, it is due
to some radical cause, such as the bearings being pinched by their caps,
or grit and foreign matter being allowed to get into the oil.

If a bearing gets hot, be assured that there is some very radical cause
for it which should be immediately discovered and removed. Never, under
any circumstances, imagine that you can nurse a bearing, that has
heated, into good behavior. Turbine bearings are either all right or all
wrong. There are no halfway measures.

The oil strainer should also be occasionally taken apart and thoroughly
cleaned, which operation may be performed, if necessary, while the
turbine is in operation. The