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MAINTENANCE AND REPAIR (3M PMS)



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MAINTENANCE AND REPAIR (3M PMS)

The 3M system will initially seem to defy logic and be as exciting as watching paint dry, but it is important for you to understand and make sure it is properly implemented. There really is logic and purpose to it, and the 3M system will work. Just give it a chance; it’s not that hard.


Some basic facts about the 3M system (for excruciatingly complete details see OPNAVINST 4790.4B Ship’s Maintenance and Material Management [3M] Manual). Every piece of equipment on the ship, and most of the equipment in Medical, has scheduled preventive maintenance that must be performed to keep that equipment at its peak operating standard. This is particularly important for emergency equipment or equipment that is rarely used. The system forces you to look at your equipment on a regularly prescribed basis, so it doesn’t sit in a storeroom and rust to pieces.
Each work center has a list of the equipment that requires preventive maintenance, called a List of Effective Pages or LOEP. There are Maintenance Requirement Cards (MRCs) for each piece of equipment on the LOEP, which state what maintenance is to be done. This MRC card states:

  • how often maintenance is required (weekly, monthly, etc.),

  • who can perform the maintenance (some of yours can only be completed by a biomedical repair technician),

  • other maintenance can be completed by any corpsman),

  • how long the job will take,

  • what supplies and equipment are needed to do the maintenance (a bucket, soap and water, etc.), and

  • how to carry out the maintenance (with detailed, step-by-step instructions).

This is something you and every one of your people need to know how to do.
If you do not have an MRC card for a particular piece of equipment, you must submit a Feedback Report (FBR) OPNAV 4790/7B, to the ship’s 3M Coordinator (see below). This request goes to the Navy’s 3M center, who then send the MRC card to you and add that item to your departmental equipment list (LOEP). You will definitely need to do this for any new piece of equipment you receive.
3M and Damage Control are two areas that every person stationed on board a ship must get qualified in. For 3M, there are six levels. What is described above is a 3M 301 Basic Maintenance Person, a qualification everyone on the ship must have within six months of reporting on board. (See Training.)
3M 302 is the Work Center Supervisor, required for E-5s and above. This includes learning how to prepare the weekly schedule of PMS and to do spot checks. Spot checks are something you and your division officer will do weekly. You will complete a check of three pieces of equipment on which preventive maintenance was done that week, and your division officer will do one. When you do a spot check, you are supposed to watch the person who has performed the maintenance actually do the maintenance again. The intent is to ensure that the maintenance is actually being done and not falsely documented (“gun-decked” in the fleet) and that the person really knows how to do the PMS.
3M 303 (Division Officer) is required for all E-7s and above. Here is where you learn how to create the maintenance schedules and cycle boards that are mentioned below. There is an art to this and some common sense. Obviously, don’t schedule all maintenance for the end of the year (you run the risk of not being able to do it), or schedule it for when half the department is on leave, etc. In addition, there is a 3M, Admin and Ops course that all khakis are strongly encouraged to attend. This course is given off the ship, and your Admin Department can help you with scheduling.
3M 305 (Department Head) is required for you and simply reviews 3M 303 to make sure you really do understand enough of what you are signing. 304 is a Departmental 3M Assistant, and one of your senior enlisted people should have this qualification so that your 3M program can run smoothly, but this is not required. 3M 306 is a 3M Coordinator and Inspector, who is able to go out and perform 3M inspections and assist visits on other departments and ships. If you are on a tender, one of your chiefs will probably have this qualification, but no one is required to do this one either.


  1. The Cycle Schedule: Used for long-term planning, which is the responsibility of the department head. It deals with scheduling the preventive maintenance for the year by quarters for every piece of equipment you own. You review and sign a new one every year or each time it is rewritten.




  1. The Quarterly Schedule: Breaks the cycle schedule down for the preventive maintenance to be completed monthly for each quarter of the fiscal year. This is also your responsibility to review and sign each quarter or each time it is rewritten.




  1. The Weekly Schedule: The responsibility of the division officer. The LCPO, who is the work center supervisor, usually makes up the schedule for PMS checks for the week with the department head and division officer’s approval. Each week the schedule is submitted to the division officer or department head for signature, listing all preventive maintenance and checks to be done that week. These weekly schedules should accomplish everything promulgated in the quarterly schedule and ensure that all pieces of equipment have had their scheduled preventive maintenance by the end of the year.

Submit internal work requests to the department head of the work center doing the actual repair work when you find any equipment or areas with discrepancies requiring repair. Your work center supervisor should keep copies. By properly using the preventive maintenance system, your department can maintain maximum operability. It is important for the Medical Officer to note the maintenance schedules on a weekly and monthly basis to check for planned maintenance. Before signing any 3M PMS schedules, be certain you know what was inspected and that the job was done properly. Usually the LPO will have done this for you and you need do nothing more than check off the areas that were inspected or repaired.


Soon after you arrive on board ship, have the chief go over the system with you in vivid detail. You can get confused by the checkmarks, X’s, and numbers you will find on these sheets; they will have no meaning until you understand how they correspond to areas and pieces of equipment. Although initially confusing, this system is very worthwhile.
Each ship has a 3M Coordinator in charge of collecting and collating all reports from every department. The Coordinator is the ship’s expert on 3M and a good reference point for you. Any questions you may have should be referred there.
One of the reports collected, and one that is your responsibility to submit, is the weekly report of PMS. This lists the numbers of all PMS scheduled for the week and the numbers actually accomplished that week. A word to the wise - those two numbers should always match and be 100%. The percentage of PMS done is important for the ship on its annual command inspection.
Remember—the more you support line programs, the more the line will support your programs. The PMS report also lists the number of department head and division officer spot checks scheduled and completed as well as the completed spot check form (it’s a check-off one). Again all of the numbers should match and be 100%. This is a program that is easy to let slide if you do not insist that it is completed and documented as required by instructions. This must show up on your list of things to do each week. You’re probably getting the idea that this list is pretty long.


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