SECTION 3 INSTRUCTIONS 3-01. OPERATIONAL LAYOUT. Insofar as possible, items of equipment shall be segregated by type prior to preparing them for storage. Where possible, items of similar type or similar make and model should be assigned to particular groups in order that operators may readily be- cane familiar with the disassembly and reassembly operations, and thereby obtain increased speed and proficiency. Sufficient benches or tables upon which parts or accessories may be placed, pending cleaning and preserving, shall be provided for each item. The tables or benches shall be covered with clean grade A barrier-material conforming to Specification JAN-B-121. Parts, accessories, precision units, assemblies, and/or parts of the item requiring cleaning and preserving may be put into baskets with identifying tags attached. Cleaning and spraying equipment used to clean and preserve should be assigned as required. 3-02. DISASSEMBLY, The degree of disassembly required will be govern- ed by the type of equipment and the extent to which it has been used. In general, metal-working machine tools incorporating such devices as precision bearings, tool drive, hydraulic, oil-lubricating, and coolant systems will require the greatest amount of disassembly to accomplish adequate processing. The considerable use to which much of this equipment has been subjected and the previous minimum maintenance measures applied, will require that a high degree of disassembly be conducted to remove corrosion and corrosive sludge accumulations from all critical and bright metal surfaces and in order to determine the extent of danage that has occurred to internal parts and assemblies. Such decision shall be made by the responsible personnel, following a comprehensive inspection of representative machines disassembled sufficiently to permit thorough inspection of all critical mechanisms. Equipment, such as tank compressors, refrigerating units, lift trucks, jacks, etc., will not require the degree of disassembly prescribed for metal-working machine tools. 3-03. CLEANING, This specification prescribes certain basic operations for external and internal cleaning. It will be understood, however, that the many types of equipment to be processed are so diversified that it will be necessary for the responsible personnel to implement the instructions in certain instances to accomplish the basic requirements of thorough cleaning of all critical operating surfaces, which, in general, shall be considered all bright metal, unpainted working surfaces. Cleaning shall always be accomplished prior to ap- plication of preservatives and shall include the removal of rust, sludge, preservatives applied prior to receipt of equipment, or any harmful foreign matter. Non critical surfaces such as castings, frame members, pans, etc,, do not require the degree of cleaning established for critical surfaces, with the exception of areas of corroded surface that are immediately adjacent to critical surfaces. 18-27