57. Q. If a slide valve is broken, what can be done to run the engine on one side?
A. Remove the steam chest cover, place a thin board between the valve and the steam passages in the seat, replace steam chest cover, disconnect valve rod, and if able to lubricate the cylinders leave up the main rod and proceed on one side.
58. Q. If one of the bolts connecting the two parts of a built-up link on Stephenson gear breaks or is lost, how would you proceed?
A. If temporary bolt cannot be supplied, take down the forward part of the link, disconnect and remove link block, fasten valve to cover ports, and proceed. If moving link will clear rocker arm or other parts of the machinery after link block is taken out, it will not be necessary to disconnect eccentrics.
59. Q. What should be done in case of link saddle pin breaking?
A. Remove the broken parts and block the disabled link in such a position that the entire train could be started, using a very short block above the link block in the link slot and a longer one below it.
60. Q. With one link blocked up, what should be guarded against?
A. Reversing the engine or moving the tumbling shaft arm down so the link on the disabled side can strike it.
61. Q. How can it be known if an eccentric has slipped on the axle?
A. By the uneven exhaust of the engine and a thorough inspection to determine the cause.