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TM 55-1905-223-24-10
Section VI. PREPARATION FOR STORAGE, OR SHIPMENT
2-35.  Administrative Storage . If the bow ramp assembly will remain intact but out of service for an extended period
of time (30 days or longer), or subassemblies are reshipped to another location, certain actions must be taken as
protection against the corrosive effects of the elements. All internal and external surfaces will rust or corrode if they are
not protected. The procedures in the following paragraphs will cover preservation of the system and components prior to
extended lay-up, shipping and return to service. Also see TB-740-97-4, "Preservation of Vessels for Storage" and TM 55-
1905-223-24, "Hull and Outfitting."
2-36.  Temporary Storage Hydraulic Power Pack. If the hydraulic power pack and associated piping and valves
remain intact but out of service for an extended period of time (30 days to 6 months or longer) or the power pack is to be
reshipped to another location, accomplish the following tasks to minimize rust and corrosion.
a. Short Term Storage (30 days to 6 months) system intact.
(1)
Place a suitable container under hydraulic reservoir tank, remove magnetic drain plug, drain oil from
system and replace magnetic plug.
(2)
Place a suitable container under hydraulic directional control valve supply and return piping connections,
vent system, disconnect piping, drain residue fluids from system and reconnect piping fittings.
(3)
Fill reservoir tank with preservative fluid conforming to MIL-H-6083. Operate system (reference
paragraph 2-6) to cycle preservative throughout system and fill reservoir to capacity.
(4)
Install a separate expansion tank above the existing reservoir tank with suitable fittings onto the fill hole,
fill expansion tank with additional preservative to provide necessary space for fluid expansion and
compensate for minor system leaks.
b. Long Term Storage (over 6 months and longer) system intact.
(1)
Accomplish tasks a.(l) through a.(4).
(2)
Lightly spray the external surfaces of the hydraulic power pack to include hydraulic pump, electric motor,
associated valves and fittings with preservative fluid conforming to MIL-H-6083.
NOTE
After the hydraulic power pack has been in storage for 12 months repeat external
coating of preservative. After 24 months of storage repeat storage preparation
tasks.
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