Preventive maintenance program components

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. 

Preventive maintenance program, in commercial- scale pharmaceutical operations, 13 735 Preventive maintenance systems, components of, 15 466-467 Preventive medicine, through vaccination, 25 487... 

Maintenance Normal wear and tear as well as aging of various components may compromise the performance of the instrument or lead to operation failure. The instrument needs to be maintained in order to function consistently and reliably. A preventive maintenance program which identifies and replaces the consumable parts will likely save time and money in the long run. The usage and service records... 

What about Preventive maintenance A preventive maintenance program should be established in consultation with those responsible for the upkeep of the chamber during normal use. This should be done after successful qualification and prior to releasing the chamber for use. Components that are prone to malfunction due to normal wear and tear include solenoid valves, humidifier floats, and recirculation-fan drive motors. These components should be checked or replaced on a regular basis to prevent or minimize chamber downtime. 

The first component of a successful clinical trial manufacturing program is the area or facility used for the production of clinical trial batches. This facility should have limited access and be segregated from other activities where the danger of cross contamination is removed and the control of materials, product, waste, and personnel flow can be achieved. Preparation of vector batches requires rooms where a controlled environment can be maintained. Here, under class 10,000 and class 100 environments, batches can be produced, purified, and vialed for use in trials. HVAC and other equipment used within the manufacturing facility requires annual calibration, initial installation, and operational qualification, and appropriate preventive maintenance programs. Written procedures for the use, cleaning, and maintenance of the facility, and the equipment must also be written and followed by appropriate personnel. 

Most of the preventive maintenance programs, which only concern active components at this time, are drawn up using the RCM method, both on 900 and 1300 MW series. 

Development of a methodology "Risk Based In Service Inspection" for passive components (pipes). The studies started in 1997 and the first preventive maintenance programs will be issued soon,... 

A preventive maintenance program can be developed for any industrial function that has a maintenance component. The same principles used in the truck operator example in this chapter can be used for other mobile equipment, machinery, or process maintenance (see Figure A.3). It matters little the type of maintenance. It is more important that the workers, operators, supervisors, and management realize that the care taken in prevention will pay dividends in cost savings, accident costs, less equipment damage, and better overall working conditions and employee attitudes. Care of your physical assets (physical plant, vehicles, machinery, etc.) is critical to the bottom line. The bonus is that you will reduce one of the factors that can contribute to your occupational injury rate. 

E-10 Maintenance of Medical Gas and Vacuum Systems in Health-Care Facilities. Contains guidance for the health-care community in developing a planned, preventative maintenance program for centrally piped medical gas and vacuum systems in health-care facilities and hospitals. The requirements given are applicable to most installations. This document does not apply to the construction or repair of any component of a medical gas system (14 pages). 

Preventive maintenance (PM) of a hydraulic system is very basic and simple and if followed properly can eliminate most hydraulic component failure. Preventive maintenance is a discipline and must be followed as such in order to obtain results. We must view PM programs as performance oriented and not activity oriented. Many organizations have good PM procedures but do not require maintenance personnel to follow them or hold personnel accountable for the proper execution of these procedures. In order to develop a preventive maintenance program for your system you must follow these steps ... 

First, safety critical systems must be reliable. These systems control releases in the event of accidents. It s necessary to have a critical analyzer, instrument and electrical system test program. This should consist of preventive maintenance and alarm and trip device testing for panel alarms, emergency isolation valves and other critical components. [7]... 

Maintenance programs both prevent failures and prolong the useful life of equipment. In the case of safety—critical equipment and components, failure prevention is of primary concern, however prolonging useful life will also reduce failure frequency and thus contribute to overall reliability. 

One of the most effective safety practices, as well as one highly conducive to productivity, is a definite scheduled program of preventive maintenance. Each item of equipment should be periodically removed from service, carefully inspected and calibrated, any faults or indications of deterioration repaired, and tagged with the date of review and the name of the maintenance person, if more than one technician could have been responsible. A permanent file or maintenance log on each major item of equipment is useful for identifying trends or weak components. 

Does your preventive maintenance and inspection program recognize the following safety-related vehicle components whose deterioration directly affects vehicle control - braking system - steering system - couplers - tires and wheels - suspension... 

Is the emphasis of your preventive maintenance and inspection program based on the importance of recognizing the vehicle components that directly affect vehicle control, such as braking systems, steering systems, couplers, tires and wheels, and suspension systems Each of these could affect the vehicle s safe operation. You... 

A preventive maintenance and inspection program should recognize wear of consumable components that must be periodically replaced or serviced. It should take into account indicators of deterioration that can be monitored at the operator inspection level. The driver should be trained in troubleshooting. Special attention must be paid to the condition of components that cannot be easily observed by the driver. Maintenance supervisors and mechanics should inspect those components where problems can occur but are not easily discernible. 

To summarize, maintenance of a hydraulic system is the first line of defense to prevent component failure and thus improve equipment reliability. As discussed earlier, discipline is the key to the success of any proactive maintenance program. 

Presented in (Kustron et al. 2012) study is an introduction to research in the field of process automation to optimize aircraft maintenance programs using expert systems in the form of available software. The analysis indicates that the best distribution of the random variable T for the failure rate data collected by non-renewable component of the aircraft due to the maximization of technical readiness, a log-normal distribution, for which the time interval preventive replacement component is 103 hours. In order to assess the accuracy of the analysis determined time intervals under... 

Effective Preventive Maintenance (PM) programs are essential for ensuring acceptable operational reliability throughout the service life of nuclear power plants. The role of PM are to detect and mitigate component degradation managing of ageing effects. 

Reliability-centered maintenance. Reliability-centered maintenance (ROM) involves the establishment or improvement of a maintenance program in the most cost-effective and technically feasible manner. It utilizes a systematic, structured approach that is based on the consequences of failure. As such, it represents a shift away from time-based maintenance tasks and emphasizes the functional importance of system components and their failure and maintenance history. RCM is not a particular maintenance strategy, such as preventive maintenance rather, it can be employed to determine whether preventive maintenance is the most effective approach for a particular system component. 

Abstract The application of off-line robot programming techniques for tasks which require a high precision is hampered by the absence on-line quality control techniques. An essential component for quality control is a low cost recalibration system which can be applied on-line during the production cycles of the robot. In this paper we present a low-cost calibration system for partial recalibration after repair or failure and for preventive maintenance. The system consists of a measuring device and software to perform parameter estimation. The system uses an non-tactile optical sensor. A suitable error model is used so that only a relatively small number of parameters has to be estimated to update the kinematic model of the robot. 

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