1412 Prepare a List of Routine Maintenance Actions with Time Estimates Materials and Frequency for Each

This is the second step in the four-step procedure for developing a maintenance program. The first step was to determine the present condition of each system in the facility, using Tables 14.1 to 14.8 to help locate trouble spots. The products of this step are: (1) a list of all the equipment in the facility by system; (2) a list of the major one-time maintenance problems associated with this equipment; and (3) a notebook with these lists and with the diagrams for each of the major systems. The next major step is to augment the notebook by a list of preventive energy maintenance actions for each system together with an estimate of the materials needed, the time required, and the maintenance frequency for each piece of equipment. Table 14.9 gives representative inspection intervals to help you develop your own procedures. For convenience, the items of equipment are arranged in alphabetical order, and the maintenance actions are described only briefly. A more detailed description of the required maintenance for some items is given in Section 14.2 and necessary instruments are discussed in Section 14.5.

Incidentally, the lists described above should be maintained in a form that maintenance personnel can easily use. If your personnel are familiar with database searching, or if you have a computer system that you have used, understand, and like, then by all means use a computer system. Such systems have information retrieval capabilities that can be most helpful, they offer fast access to information, and they are easy to update. They also don't take up much room. On the other hand, they can be a barrier to getting work done. If the software is unfamiliar, if the maintenance people don't like to use it, or if keeping it up to date is difficult, then a manual system is better. The objective is to get the maintenance done, and done right, not to demonstrate another use for a computer.

Time Standards. Accurate time standards for maintenance are difficult to obtain except where the maintenance actions are the same whenever they are repeated. In this case, predetermined time standard systems such as MTM and MOST are claimed to work, as are some detailed standards such as those developed by the Navy.7 But most maintenance actions include troubleshooting. Troubleshooting depends upon the condition of the equipment, the maintenance history, and the skill of the maintenance personnel. In general, hiring journeymen rather than apprentices is an investment that is well worthwhile. To estimate the amount of maintenance time that will be needed, consult equipment manufacturers first, then other users of the same kind of equipment. Modify these estimates to include the experience of your personnel, the present condition of the equipment, and the availability of necessary repair parts. Then record your time estimates, compare these estimates with actual experience, and revise the estimates to conform with your actual experience.

Table 14.8 Motors, ovens, and time clocks.



Initial Maintenance Action



Check bearings

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