One of the basic important requirement to create steam is water, the most important substance needed at a steam engine. Now to inject water into the boiler you need to know how the injector works.
It is quite simple. Add steam to water through a narrow funnel or conic shape gap, then it expands and pushes the water with power. The gap is not bigger then a finger tip creating a tremendous force that overruns the steam pressure resulting the filling up of the water level. Based on this principle the boiler is feed by hot water.
The operation of the injectors:
Press [ L ] and hold to open the water flow to the Live injector until the valve is completely opened.
Press [ O ] to feed the injector with fresh steam.
Shut the injector down in opposite sequence:
Press [ O ] to close down the steam feed.
Press [ Shift ] – [ L ] and hold to close the water feed.
The exhaust injector is not working properly when the loco is not running, because there is no exhaust steam.
To use the exhaust injector:
Press [ K ] and hold to open the water feed to the exhaust injector until the valve is completely opened.
Press [ I ] to open the exhaust steam feed.
Shut down is also in the opposite sequence:
Press [ I ] to close the exhaust steam feed.
Press Shift – [ K ] and hold to close the water feed and wait until the valve is completely closed.
Do not leave the water valves open. The water will flow through the injectors drain pipes on the track(side) and at a certain point by surprise you will encounter an empty tender while you had topped up.
Always open up the water first, then steam. This prohibits the injector to get overheated. An overheated injector will malfunction. In practice you should cool down the injector when malfunction occurred. Take a bucket of water and throw the water over the malfunctioned injector. Do not do that too often, because a sudden cool down will crumble the injector as well.
Keep the water between 70 – 80% during a regular run.
In practice you have to be aware of the False Air flow Back which occurs when other values on the reverser remains present instead of the 30% and 70% positions. This is will cause “False Air” which will “suck” through the chimney into the cylinder and might damage the cylinders because of the sudden temperature drop.
The working of the injector is seen here in this lay-out;
Steam feed (red colored) can be applied by pressing the [ O ] (Live/fresh steam). Water feed is bleu and applicable by pressing the [ L ] (Live/fresh steam injector). The white area is the water overflow. Water is drained off when the balance between fresh water and fresh steam is incorrect. When the water feed and the steam feed are in the right balance, the water will flow through the purple pipe into the boiler.
However the proper working of the injector depends on the balance between the temperature and the amount of pressure of fresh steam. In order to get a better understanding, watch the next short educational film about the working of the injector.
During and after injection keep an eye on the water glass and if the water level does not meet the desired level. Stop injecting after 2-3 minutes to cool the injector, wait a little while and start over again injecting. if necessary use both injectors at the same time. Do not inject water for a long period of time.
The water pump is a pump that excists out of three main parts. The steam cylinder, the water cylinder and the lubricator. The steam cylinder drives the water cylinder by fresh steam power. The water cylinder presses the water by force through the water feed pipe into the boiler. These water pumps are often in use on German engines.
Filling up the tender.
Drive until the last axle of your tender is in the same line with the water loader.
Press [ T ] to fill the tender.
Use the hose on the footplate to spray the coal as they fall into the tender in order to prevent the coal dust to hover around.
In order to use the hose, at some engines turn on the sprinkler system of the ash pan or smoke box prior to the use of that hose, otherwise the water will not flow through the hose. This is not simulated.