Brooks Instrument 1255A, Руководство по установке и эксплуатации

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Section 6 Maintenance
Disassembly and Cleaning
It is recommended the user periodically inspect the tube and float, and
clean if necessary. Dirt or foreign materials adhering to the tube and float
may cause inaccuracy and sticking of the float. The metering tube
(Borosilicate glass) and related parts may be cleaned with any solvent
which does not attack glass. To disassemble use the following procedures:
1. Remove the front shield.
2. Loosen the jack screw by turning it counterclockwise with a 5/32” hex
wrench. The tube may now be removed from the meter housing.
3. On meter sizes 1 through 6, the tube, float and float stops may be
cleaned as an assembly or may be diassembled for cleaning. Using a
small hook, remove either Teflon ® float stop from the metering tube and
remove the float. Be careful not to chip the tube.
4. Packing seats may now be removed.
5. The needle control valve assembly may be removed by turning the valve
body counterclockwise. The valve seat, stem and packing then may be
removed easily from the valve body for cleaning or replacement.
Section 6 : Maintenance
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