MIL-HDBK-1130
Automatic Control Equipment and Meters. Automatic control
2.5. 1.3
equipment and meters left in place should be shrouded in accordance with para.
2.2.5.4. Where instruments are removed from mountings, all openings in
connections on heating systems should be plugged, and the openings in the
instruments should be sealed with the type of adhesive tape used in shrouding.
Pipe connections from controls to heating equipment should be disconnected and
drained thoroughly. Covers on all controls and instruments should be fastened
securely in place to exclude dust and moisture. All containers for water,
ink, or acid on carbon-dioxide meters and similar instruments should be
drained completely, and all openings should be tightly closed to exclude dust.
Glass containers should be wrapped carefully in cloth or paper and stored in
the instrument case. All ink should be removed from pens or recording
instruments, and pen arms should be lifted. Each instrument should be wrapped
in paper, and manufacturer's recommendations should be followed. Motorized
valves should be oiled in accordance with the manufacturer's directions.
Thermostats should be set on the lowest settings.
2.5.1.4
Combustion Equipment. Combustion equipment, discussed in the
following paragraphs, consists of stokers, oil burners, and gas burners.
a)
Stokers. Stokers should be run until all coal has been removed
from the worm and hopper. Oiled sawdust should then be run
through the worm until all surfaces are covered with an oil
film. Remove all coal, clinkers, and ashes from the tuyere
grates, ashpit, and dead plates. Housings on gearboxes should
be securely fastened in place; oil in gearboxes should be
retained. Hoppers paint. Hoppers and heater pipes should be
tightly closed either with wood or metal covers. Fan shafts
should be greased, and fan and blower bearings should be
thoroughly oiled. Stokers with hydraulic power to ram-type
feeds should be left with oil in the pumps and piping for
hydraulic power; all openings on reservoirs should be tightly
closed. Pneumatic spreader-type stokers should have all
blowers tightly closed. Securely fasten cover plates on air
intakes should be in place.
b)
Oil Burners. The firing ends of burners should be covered with
shrouds. If a burner can be swung out from firing ports, the
entire burner should be shrouded. All oil should be drained
from pumps, valves, lines, and reservoirs into the oil tanks.
All openings on oil tanks should be tightly closed; the vent
should be turned down, and a wire screen fastened securely over
vent openings.
c)
Gas Burners. Gas should be shut off outside the buildings;
lines should be bled slowly through the gas burners. Areas in
which the gas distribution is to be discontinued should be cut
off from the remainder of the system by the closing of valves.
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