defective, how could the oil be heated in tank?

A. By closing the firing valve, closing the valve on heater pipe, and
opening valve on heater box, the steam from heater throttle can be
passed directly through the oil feed pipe to the fuel supply.

54. Q. In the event of an objectionable quantity of water in oil, how
can it be removed?

A. In some instances the tanks are provided with drain pipes for this
purpose, but in the absence of same, the feed hose or pipe between
engine and tank can be disconnected and used as a drain to fuel oil
tank.

55. Q. What effect has leaks between fuel tank and firing valve?

A. A waste of oil only.

56. Q. What effect has leaks between firing valve and burner?

A. In addition to a loss of oil while fire is burning low, and but
little steam atomizer being used, it interferes very materially with
the engine's steaming by admitting air when using considerable steam
atomizer. This causes a very irregular oil feed.

57. Q. What action of the fire would indicate leaks in pipes between
firing valve and burner?

A. The fire-box will give off sounds similar to slight explosions, and
the smoke at stack will indicate irregular fuel feeding.