be done if a steam chest breaks?
A. Would take off steam chest cover, place strips of boards over the
steam inlets and block on top of them so that the steam chest cover
would hold them in place and prevent live steam coming out of inlet.
Would then make the necessary disconnection and proceed on one side.
84. Q. If a link lifter or arm were broken, what should be done?
A. Take off the disabled parts, block between the top of the link and
link block, having the disabled link blocked down very nearly in full
strokes. For safety, both the top and bottom of the disabled link should
have blocks in its slot; the good link would be held in place by the
reverse lever and should under no consideration be dropped down any
farther than the disabled link was.
85. Q. If the reverse lever or reach rod should break, what should be
done?
A. If either breaks, place an iron bar or suitable piece of material
across the top of both frames, securely fastening it in position, then
fasten the arm of the tumbling shaft to the bar. This will require the
engine to be worked at about half cut-off; handle such part of the train
as the road conditions would permit.
86. Q. What should be done if the piston, piston rod, cross-head, main
rod or crank pin are broken or bent?
A. If a piston should break, would remove broken parts, disconnect valve
stem, clamp valve in central position, and if moving piston would not
damage cylinder, leave main rod up and proceed. If a piston rod,
cross-head, main rod or crank pin are broken or bent, would take down
the main rod, block the valve and cross-head; if piston rod is broken
off at the cross-head, leave main rod up.
87. Q. What should be done when there is a loose or lost cylinder key?
A. If the cylinder key is loose, it should be tightened up; if lost,
something should be substituted. In case nothing solid can be found to
take the place of the key, the engine should be run in light to avoid
further damage.
88. Q. What should be done if a safety valve spring or stud breaks?
A. The steam pressure should be reduced. With broken spring, screw the
parts down solid or clamp the stem down. This can be done by laying a
piece of scantling across the top of the valve, fastening each end to
the hand rail on opposite sides of the engine in case of broken stud.
Would then raise steam pressure and proceed. Care should be taken to see
that the other safety valves relieve the steam pressure properly.
|