Figure 2-19. - Sample of a bill of material (BM) sheet.
Equipment production rates are available in the Long lead items are not readily available through the normal supply system. They require your special attention to ensure timely delivery. Items requiring a long lead time are non-shelf items, such as steam boilers, special door and window frames, or items larger than the standard issue. Figure 2-20 shows some of the long lead items. Identify and order these items early. Make periodic status checks of the orders to avoid delays in completing the project.
Equipment estimates are used with production schedules to determine the construction equipment requirements and constraints for Seabee deployment. Of these constraints, the movement of material over roadways is frequently miscalculated. Factors, such as road conditions, the number of intersections, the amount of traffic, the hauling distances, and the speed limits, are all variables that play into your estimate. You must consider the types of material hauled, safety (machine limitations and personnel), operator experience, condition of the equipment, work hours, and the local climate are other major factors to consider in your estimate.
Equipment production must be determined so that the amount and type of equipment can be selected. Seabee Planner's and Estimator's Handbook. The tables in this handbook provide information about the type of equipment required. Estimate the production rate per day for each piece of equipment. You should consider the factors previously covered, along with information obtained from NAVFAC P-405 and your experience. The quantity of work divided by the production rate per day produces the number of days required to perform the project. After determining the number of days of required equipment operation, consult the project schedule to find the time allotted to complete the activities. Prepare the schedule for the total deployment. Use the project schedule to determine when the work will be performed. The schedule should also indicate peak usage. It may have to be revised for more even distribution of equipment loading, thereby reducing the amount of equipment required during the deployment.
After the review of the project and material estimate are complete, prepare a list of equipment required. This list must include anticipated downtime and sufficient reserve pieces must be added to cover any downtime.
To aid you in preparing the equipment estimate schedule, use such forms as those shown in figures 2-21 and 2-22. The important information on the forms includes the sheet number, the name of theContinue Reading