be processed as specified in 3-32. compressed air. All lines shall be blown free with 3-27, LUBRICATING AND COOLANT SYSTEMS. All lines shall be blown out with moisture-free canpressed air. Preservative compounds shall not be permitted to enter these lines. Pumps shall be dismantled, cleaned, and preserved in accordance with this specification. processed as specified in 3-32. Pump motors shall be 3-28, AIR SYSTEMS AND CYLINDERS. Air cylinders and pistons shall be disassembled and cleaned in accordance with the general requirements of this specification, All organic packings (except neoprene) shall be removed and attached to the outside of the system for future identi- fication purposes. Type P-3 preservatives conforming to Specifications AXS-1759 and MIL-C-972 shall be used in preserving these systems. Motors shall be processed as specified in 3-32. Compressor parts shall be processed as specified in 3-34. The following caution note shall be placed on a waterproof tag which shall be attached at a conspicuous place on the air system: , CAUTION! REPLACE ORGANIC PACKING AND LUBRICATE SYSTEM WITH SUITABLE LUBRICANTS BEFORE EQUIPMENT IS PLACED IN OPERATION 3-29. GEARS AND GEAR TRAINS, Care shall be exercised to avoid any nick- ing or battering of teeth and worms during the processing of gears and gear trains. Cleaning and preserving shall be in accordance with the general requirements of this specification, In general, type P-2 pre- servative shall be used in the preservation of gears and gear trains. Type P-3 preservative may be used where gears are an integral part of a spindle assembly or are otherwise integral part of a spindle assembly or are otherwise integral with internal precision mechanisms. 3-30. THREADED PARTS. In the handling of precision threaded parts (ex- cluding common hardware items), it will be necessary to carefully control alinement and engagement to prevent cross threading. 3-31, ELECTRICAL EQUIPMENT. Various items of electrical equipment (excluding motors) such as control panels, transformers, switch boxes, x-ray machines, electro-limit gages, camparators, etc., are of such fabrication as to place them in a separate category with respect to processing. The complexity of their design and system of circuit, particularly as pertains to control panels, necessitates their processing as assembled units. Alloys, copper insulation, and nonferrous members comprise the bulk of their fabrication. Emphasis shall be placed on solvent and compressedair cleaning of the assembled units, and type P-3 preservative shall be applied when required by the responsible personnel. There shall be shrouding of the specific electrical equipment items to prevent dust accumulations. Where power hookup is maintained, all circuits from transformers through secondary lines to distributing panels, thence to each and every machine, and then all circuits through machines will be checked 18-32