Maintenance scheduling

For estimating filtration rate (therefore, operating pressure and size of the filter), washing characteristics, and other important features, small-scale tests such as the leaf or pressure bomb tests described earlier are usually essential. In the conduct and interpretation of such tests, and for advice on labor requirements, maintenance schedule, and selection of accessory equipment the assistance of a dependable equipment vendor is advisable. 

In a draw-out MCC all current-carrying components should be periodically checked for their silver-plating, proper contact area, spring pressure and tightness of joints (this procedure can follow the manufacturer s maintenance schedule) or at least during the six-monthly or yearly maintenance check ups of the busbars and the busbar joints as noted above. The contacts or their springs may be replaced when the contacts are worn out or... 

With the advance of the turbine to idle speed, the turbine is ready to synchronize, and control is considered in synchronization. Both manual and automatic synchronizing are available locally. The unit is synchronized, and the main breaker closed. The speed reference will be switched to become a load reference. The speed/load reference will be automatically increased at a predetermined rate so that the fuel valve will be at the approximate position required for the desired load. For maintenance scheduling, the computer will count the number of normal starts and accumulate the number of hours at the various load levels. 

Building maintenance schedules Try to schedule maintenance activities that interfere with HVAC operation or produce odors and emissions (e.g., painting, roofing operations) so that they occur when the building is unoccupied. Inform occupants when such activities are scheduled and, if possible, use local ventilation to ensure that dust and odors are confined to the work area. 

Maintenance schedule indicating the estimated operating time between two interventions,... 

Air cleaning (dust collection) can be cost effective for LVHV systems handling valuable dusts. Care must be taken when handling potentially toxic dusts from air cleaners. Regular, routine reconditioning of fabric filters (e.g., by automatic shaking or pneumatic pulsing) is impottant. This can be accomplished on a set maintenance schedule or as a function of pressure drop across the fabric filter. It is not recommended to recirculate airflow back to the workplace because of the low air volume and potential hazards in the event of filter failures. 

The answer to this question will depend on two factors the frequency with which the CT occur, and the likelihood of errors arising when performing these tasks. The frequency of the interactions can usually be specified relatively easily by reference to plant procedures, production plans, and maintenance schedules. The probability of error will be a fimction of the PIFs discussed extensively in Chapter 3 and other chapters in this book. In order to obtain a measure of error potential, it is necessary to make an assessment of the most important PIFs for each of the CT. 

Tlie importance of when to correct/replace a broken bag will depend on tlie type of collector and tlie resultant effect on outlet emissions. In inside bag collection types of collectors, it is very important tliat dust leaks be stopped as quickly as possible to prevent adjacent bags from being abraded by jet streams of dust emitting from tlie broken bag. Tliis is called tlie domino effect of bag failure. Outside bag collection systems do not liave tliis problem, and tlie speed of repair is delennined by wlietlier tlie outlet opacity litis e.xceeded its limits. Often, it will take several broken bags to create an opacity problem mid a convenient maintenance schedule can be employed instead of emergency maintenance. ... 

Correct maintenance schedules and procedures Designated certification and test/inspection procedures ... 

Most combustion equipment is not controlled by means of a feedback from flue gas analysis but is preset at the time of commissioning and preferably checked and reset at intervals as part of a planned maintenance schedule. It is difficult to set the burner for optimum efficiency at all firing rates and some compromise is necessary, depending on the control valves used and the control mode (e.g. on/off, fully modulating, etc.). 

For much plant the manufacturers will provide detailed maintenance schedules which should be followed at all times. This may necessitate the use of spares and tools specific to that appliance. Attention is drawn to Regulation 25(7) of the Gas Safety (Installation and Use) Regulations, which states that No person shall carry out any work in relation to a gas appliance which bears an indication that it conforms to a type approved by any person as complying with safety standards in such a manner that the appliance ceases to comply with those standards . 

The period between such tests will depend on the maintenance schedule for the plant, which should also include the in-situ soundness testing of non-return valves and safety shut-off valves by bubble leak detectors, etc. 

The dominant reason for this ineffective management is the lack of factual data that quantifies the actual need for repair or maintenance of plant machinery, equipment and systems. Maintenance scheduling has been, and in many instances, is predicated on statistical trend data or on the actual failure of plant equipment. 

Leaks of R.717 usually make themselves apparent and motivate staff to search out the leak and repair it. In the case of the halocarbons, a regular leak test should be part of the general maintenance schedule. 

The rituximab dosage is 375 mg/m2 weekly for 4 weeks. Maintenance schedules include 375 mg/m2 weekly for 4 weeks every 6 months for 2 years or 375 mg/m2 every 2 to 3 months for 1 to 2 years. Maintenance rituximab significantly prolongs progression-free and overall survival as compared with observation or initiation of rituximab at the time of disease progression. 

Compute the availability of the level indicator system and flow shutdown system for Problem 11-2. Assume a 1-month maintenance schedule. Compute the MTBC for a high-level episode and a failure in the shutdown system, assuming that a high-level episode occurs once every 6 months. 

Good maintenance programs include scheduled maintenance and a system to keep an inventory of critical maintenance parts. Every maintenance job requires a feedback mechanism based on the inspection of parts while conducting the maintenance. The maintenance schedule is subsequently changed if more frequent maintenance is required. 

As part of a periodic maintenance schedule, the volume of fluid dispensed by the pipeter should be quantitatively assessed to detect any restricted flow that might occur owing to blockage of the pipeter. If double-mounted slides are used, with... 

Transfer to disopyramide Use the regular maintenance schedule, without a loading dose, 6 to 12 hours after the last dose of quinidine or 3 to 6 hours after the last dose of procainamide. Where withdrawal of quinidine or procainamide is likely to produce life-threatening arrhythmias, consider hospitalization. 

When transferring from immediate to controlled release, start maintenance schedule of controlled release 6 hours after the last dose of immediate release. 

Recommended Cefepime Maintenance Schedule in Patients with... 

Tanks used to store fuel are usually emptied and filled on a continuous basis. Although most fuel refiners and marketers maintain some type of routine tank maintenance schedule, water and debris still accumulate. 

Several trials have been performed with antidepressants in the prevention of recurrence of major depression. In an exemplary trial of this kind, Reimherr et al. (1998) explored the optimal length of therapy in a long-term, placebo-controlled continuation study of patients who had responded to 12 14 weeks of open-label fluoxetine treatment (20mg/day) for major depression. Different maintenance schedules were represented by four treatment arms ... 

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