General instructions. (Cont)

TM 38-260

NOTE

Additional information on packing lists and markings

may be found in MIL-STD-129.

(9) Instruments such as metallic gages and measuring devices shall be cleaned with particular attention

given to the removal of fingerprints and rust. Clean and dry these items in accordance with chapter 2. All cleaned items

shall be preserved with preservative P-10, grade 30, of table 2-1 immediately after drying. All preserved items shall be

wrapped in barrier material conforming to MIL-B-121, grade A. Wrapped items shall be cushioned and packed in

accordance with MIL-P-116. Packing lists and markings for packed/boxed items shall conform to MIL-STD-129, as per

(10) Items of special test equipment are usually unique items and each must be considered for cleaning,

preservation, and preparation for shipment on an individual basis.

(11) Delicate electrical and electronic equipment such as control panels, X-ray machines, electrolimit

gages, comparators, numerical control (NC) units, computer numerical control and memory units are placed in a

separate category with respect to cleaning, preservation, and packing. The complexity of their design and circuitry,

necessitates their being processed as assembled units, using only cleaning processes that will not destroy delicate

systems materials. Solvent flushing shall not be used in cleaning of electrical circuits. Low pressure moisture-free

compressed air, vacuum cleaner or a lint-free cloth may be used for cleaning. No further cleaning is required.

(a) It is important that cushioning, blocking, and bracing be accomplished in preparing delicate

electrical and electronic equipment for shipment. Vibration, which can cause extensive damage to internal and external

components, shall be held to a minimum. Cushioning, blocking, and bracing shall be in accordance with MIL-STD-1186

and MIL-E-17555. Cushioning materials listed in MIL-E-17555 shall be used to immobilize all fragile and delicate parts.

Heavy components shall be adequately blocked and braced or removed. Many heavy components do not have

adequate internal support to ensure safe delivery. Therefore, consideration shall be given to possible removal of heavy

items, such as transformers and motors, which might break loose and cause damage. When components are removed

from the equipment, disconnections shall be marked and identified to assure correct reinstallation. All screws and bolts

used to secure such items as circuits boards, panels, and shelves, shall be tightened to prevent movement of the

components during transportation and handling.

(b) Packing and marking of parts which have been removed shall be in accordance with MIL-E-17555

and MIL-STD-129. Electrical and Electronic equipment need not be skidded unless the weight and size are such that

skidding is essential for handling. Cabinet doors shall be locked and secured with banding conforming to ATSM D3953

or CID A-A-880. Adequate cushioning shall be used to prevent the banding from scratching or otherwise damaging the

cabinet. Keys for the cabinet door shall be packed using submethod C-1 and taped to the equipment adjacent to the

lock.

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