Emerson Bettis PressureGuard, Руководство по установке и обслуживанию

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March 2014
Installation and Maintenance Manual
E-90090005 Rev. A
13
Section 6: Maintenance
Maintenance
Section 6: Maintenance
NOTE:
It is recommended to read this manual entirely prior to performing any maintenance work
on BETTIS™ PressureGuard™.
Contact BETTIS™ for assistance should the technician have any questions or feel that a
certain procedure cannot be performed safely.
CAUTION: BLEED OFF ALL CONTROL PRESSURE
Proper personal protective equipment should be worn at all times while working on the
equipment. Operator assemblies contain pressurized fluids and compressed springs.
Do not attempt to remove any components or perform any service work with the operator
under pressure. Bleed off all control pressure and disconnect control pressure supply lines
before performing any service to the operator. Failure to do so could result in equipment
damage or serious personal injury.
NOTE:
Keep all elastomers and/or replacement parts in original packaging until its ready to install.
Inspect all parts (new or used) for burrs, sharp edges, or damages prior to reassembly.
Special attention should be given to all sealing surfaces for damage.
All parts should be clean and properly lubricated prior to reassembly.
6�1 Regular Maintenance
Regular maintenance (though rarely called for) is critical to ensure that BETTIS™
PressureGuard™ will function within its ESD capacity when needed.
1� SCH Maintenance
NOTE:
Perform routine maintenance on SCH module each autumn (at minimum) or more
frequently if it better aligns with the requirements of the valve.
NOTE:
This product is only intended for use in large-scale fixed installations excluded from the
scope of Directive 2011/65/EU on the restriction of the use of certain hazardous substances
in electrical and electronic equipment (RoHS 2).