If hydraulic impact wrench is not returned to service within 8 months, repeat entire preservation procedure.
Deterioration of hydraulic fluid hoses can be prevented by immersing hoses in clean lubricating oil (Appx. C,
item 13) and then allowing them to drain thoroughly. Remove any excess oil from exterior of hoses with a clean
cloth (Appx. C, item 5) and seal hose ends to prevent contaminates from entering hoses. Store in a cool, dry
4-23. SPECIAL PRESERVATION.
Apply grade 4 preservatives to exterior metal surfaces as specified in MIL-C-16173. Preservation of interior surfaces is
not required since preservative-type lubricants were applied to all interior surfaces.
Military packaging for levels A, B, and C shall be as follows:
Level A-Military Package.
Publications. Package publications per method IC-3 of MIL-P-116. Use a heat sealed interior packaging
bag conforming to MIL-B-117.
Hydraulic Impact Wrench. Package hydraulic impact wrench per method IA-14 of MIL-P-116. Seal ports
and lubricating fitting, if required, with pressure-sensitive adhesive tape (Appx. C, item 18). Wrap
hydraulic impact wrench in greaseproof barrier material listed in MIL-B-121. Secure with pressure-
sensitive adhesive tape (Appx. C, item 18).
Place hydraulic impact wrench and package publications in a snug-fitting corrugated fiberboard box (Appx.
C, item 2). Secure carton with pressure-sensitive adhesive tape (Appx. C, item 18). Place carton into
barrier bag (Appx. C, item 1). Place barrier-covered bag into carton (Appx. C, item 3). Secure carton
with pressure-sensitive adhesive tape (Appx. C, item 18).
Level B-Limited Military Package. Package all items as specified for level A military package in paragraph 4-
Level C-Minimum Military Package. Package hydraulic impact wrench and publications sufficiently for
protection against deterioration and damage during shipment and the subsequent interval prior to use.
Pack the packaged hydraulic impact wrench in accordance with PPP-P-40.
Prepare and attach packing lists and mark unit packages and exterior containers in accordance with MIL-STD-129.
Nomenclature is "HYDRAULIC IMPACT WRENCH." Additional markings also required are as follows.
Conspicuously mark exterior containers with item name and model number, contract number, and contractor's
name and address.
Mark exterior containers with shipment digit markings in accordance with MIL-STD-129, when required.