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3b) Filling using the Pump bottle when hot or cold.
The brass steam dome is open at the top and access to the filler
valve can be gained with the pump bottle tube without removing the
dome. Fill the pump bottle with clean water and pass the end of the
tube down through the hole in the dome and into the top-up valve.
The socket has a slight taper in it, and a little downward pressure
on the tube will ensure a good seal.
Pump the handle on the bottle to inject water into the boiler whilst
maintaining downward pressure on the tube. Keep pumping until
the water level in the water gauge (located inside the cab), is
almost at the top of the glass.
Remove the plastic tube. Note that a small amount of water will
remain in the top of the valve but will evaporate away as the valve
heats up.
4) LUBRICATION
Regular lubrication of all working parts is important and should be
carried out before each operating session. There are two types of
lubrication required: The external moving linkages and bearings are
lubricated with a medium oil such as motor engine oil, and the
internal steam mechanisms such as cylinders, pistons and valves
are lubricated with a special steam oil that is mixed with the steam.
Infrequent external lubrication will allow parts to run dry, and over
oiling can form pools around operating parts that attract dirt and
grit. If too thin an oil is used it will evaporate very quickly as the
loco gets hot – leading to dry running. We recommend the use of a
20-50 motor oil for external lubrication.
As the valve gear is between the frames, the locomotive must be
carefully laid on its side to gain access to all the moving parts when
oiling
Internal lubrication is achieved by steam oil that is mixed with the
steam in the displacement lubricator, housed in the left-hand side
of the cab. Remove the knurled cap from the top and slacken the
drain screw two or three turns at the bottom but do not remove it.
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