valve. Disconnect the valve rod from rocker arm and block valve stem so
it cannot blow out of the gland or let valve work back. Loosen cylinder
head in order to provide for lubricating cylinder so as to leave the
main rod up on the disabled side and proceed on one side. If unable to
cover the open steam port it would be necessary to disconnect the main
rod on the disabled side, blocking the piston at the proper end of the
guides so live steam coming into the cylinder would not move it.

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.