CARE OF THE BRAKE.
The valve B7 of the ejector needs grinding occasionally; and, if the lift should be too great, the valve will hammer the seat out of shape. Sometimes when waste or other fibrous impurities are sucked through the pipe, they stick in this valve, keeping it away from the seat. The valve is very easily reached by taking off the cap O4. The steam-valve B49 needs about the same care as any other steam-valve, and its troubles are of the same nature. The shoulder at the top of the tube 5, which is used to obstruct the steam, thereby increasing the velocity of the quantity that passes, sometimes gets cut into channels with the fast moving steam striking it. This reduces the promptness of the ejector’s action, but it is a form of deterioration that proceeds very slowly. Care must be taken to keep the drip-valves A and B16 in order, otherwise there may be trouble with the ejector throwing water, or freezing up if the engine stands where that apparatus will get cold in winter.