Program maintenance

By analysing the scans, different types of tube characteristics, wastage patterns or profiles can be documented and effectively used to make immediate decisions during shut downs and in planning maintenance programs. 

Unprotected steel corrodes at a rate which is generally assumed to be 0.1 to 0.2mm per annum. Factors that influence the actual rate of corrosion include the maintenance program applied by the owner - particularly preservation of protective coatings, efficiency of cathodic protection systems in ballast tanks, corrosive properties of the cargo carried and environmental factors such as temperature and humidity. Under extreme conditions it has been known for the annual rate of corrosion on unprotected steel exposed on both surfaces to approach 1mm. 

Developing a Simple Predictive and Preventive Maintenance Program... 

Modification of Equipment. (/) Install equipment that produces minimal or no waste. 2) Modify equipment to enhance recovery or recycling options. (I) Redesign equipment or production lines to produce less waste. (4) Improve operating efficiency of equipment. (5) Maintain strict preventive maintenance program. 

High maintenance co.st.s. Leaks must be repaired and steam traps must be checked and replaced if they have failed. Numerous studies have shown that, due to the energy lost through leaks and failed steam traps, an extensive maintenance program is an excellent investment. Steam maintenance costs are so high that for low-... 

Ensuring that good housekeeping and strong preventive-maintenance programs exist and are followed... 

Management Operating policies and procedures Training for vapor release prevention and control Audits and inspections Equipment testing Maintenance program Management of modifications and changes to prevent new hazards Security... 

Implement routine inspections, monitoring and preventive maintenance programs... 

Has the facility established an effective critical-equipment maintenance program (also termed mechanical integrity program) to prevent failures that would cause hazardous conditions ... 

Does facility have a documented preventative maintenance program to minimize equipment downtime ... 

Is there a documented preventive maintenance program for major equipment ... 

A quality service can be provided only by reliable equipment. This section seeks to ensure that effective routine inspection and maintenance programs are in place in order to detect defects before they cause accidents or breakdowns. 

Trending capability that allows better scheduling of major maintenance programs. 

The benefits of total performance based planned maintenance not only ensure the best and lowest cost maintenance program but also that the plant is operated at its most efficient point. An important supplementary effect is that the plant will be operating consistently within its environmental constraints. 

Modern day turbomachinery is built to last between 30-40 years. Thus, the keeping of basic maintenance records and critical data is imperative for a good maintenance program. Economic justification is always the controlling factor for any program, and maintenance practices are not different. 

Maintenance costs can be minimized by, and are directly related to, good operation likewise, better operating results can be obtained when the equipment is under the control of a planned maintenance program. Improper operation of mechanical equipment can be as much or more the cause of its deterioration and failure as is actual, normal mechanical wear. Thus, operation and maintenance go together. 

The goal of any good maintenance program is Zero Breakdown. To achieve this goal, there are five counter measures. These are listed below ... 

An autonomous maintenance program with total condition monitoring... 

The four major categories in developing a Performance Based Total Productive Maintenance program are ... 

Reliability of a plant depends on many parameters, such as the type of fuel, the preventive maintenance programs, the operating mode, the control systems, and the firing temperatures. 

As with any power equipment, gas turbines require a program of planned inspections with repair or replacement of damaged components. A properly designed and conducted inspection and preventive maintenance program can do much to increase the availability of gas turbines and reduce unscheduled maintenance. Inspections and preventive maintenance can be expensive, but not as costly as forced shutdowns. Nearly all manufacturers emphasize and describe preventive maintenance procedures to ensure the reliability of their machinery, and any maintenance program should be based on manufacturer s recommendations. Inspection and preventive maintenance procedures can be tailored to individual equipment application with references such as the manufacturer s instruction book, the operator s manual, and the preventive maintenance checklist. 

Borescope inspection is carried out because of the following benefits it can provide in the maintenance program ... 

Equipment used to process, store, or handle highly hazardous chemicals must be designed constructed, installed and maintained to minimize the risk of release. A systematic, scheduled, test and maintenance program is preferred over "breakdown" maintenance " that could compromise safety. Elements of a mechanical integrity program include 1) identification and categorization of equipment and instrumentation, 2) documentation of manufacturer data on mean time to failure, 3 ) test and inspection frequencies, 4) maintenance procedures, 5) training of maintenance personnel, 6) test criteria, and 7) documentation of test and inspection results. 

It is essential to practice good design of all open systems by adhering to set guidelines. A well-planned and effective maintenance program is of prime importance. 

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