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MIL-DTL-2845 Propulsion Systems, Boat And Ship; Main Shafting, Propellers, Bearings, Gauges, Special Tools, And Associated Repair Parts; Preservation, Packaging, Packing And Storage OfThis specification covers the cleaning, drying, preservation, packing, marking, and storage of main propulsion shafting, line shaft bearings, stern tube and strut bearings, boat and ship propellers, propeller devices including controllable pitch propellers, shafting, and accessories thereto. It also covers repair parts, tools, and independently mounted main propulsion thrust bearings.

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MIL-DTL-2845E (SH)

TABLE I.

Preservation � Continued.

Propeller fairwater

See 3.14.9

caps

Propeller gauges

See 3.17 & figure 18

Item

Preservatives

Method of

Remarks

preservation

(MIL-STD-2073-1C)

Propellers, fixed

See 3.14

pitch

Ship

Boat

See 3.14.1.3

Propellers,

See 3.14

controllable pitch

Built up and

See 3.16

controllable pitch

propeller hubs

Pumps

See 3.7.2.6

Roller and ball

See MIL-P-197

bearings

Rough machined steel

MIL-PRF-16173, GR 1

shaft forgings

MIL-PRF-16173, GR 4

Repair parts (support

See 3.7.2.7 and MIL-S-

items and accessories)

196

Fiberglass - covered

See 3.15.4

shaft areas

Stern tube and strut

None

Method 10

bearing bushings

Stern tube and strut

bearing staves:

Laminated phenolic

None

Method 10

Rubber, brass backed

None

Method 10

Tube from stern tube

None

Method 10

and strut bearings

Plug and ring gauges

See 3.18

Rubber items and surfaces covered with rubber shall be covered with an

opaque or kraft wrapping paper in accordance with A-A-203 or A-A-1894, type

and style optional, to prevent direct exposure to sunlight.

3.6

Disassembly, matchmarking, and lubrication.

3.6.1 Disassembly. System, equipment, or item disassembly shall be the

minimum necessary to make accessible for cleaning, drying, and preservation of

equipment and its critical surfaces. Removal of secondary assemblies,

accessories, or projecting parts which will facilitate protection of the

equipment or item from damage, pilferage, loss, or reduction of cube is

permitted where such removal will not affect permanent settings or alignments,

and where the removed items can be readily reassembled at the installation

site without the need for special tools or gauges. Removed hardware (bolts,

nuts, pins, screws, washers, and others) shall be reinstalled in the mating

parts and secured to prevent loss. Removed items or parts shall be packaged to

the same level of protection as the basic or prime equipment.

3.6.2 Matchmarking. Removed parts or items shall be matchmarked to

facilitate reassembly. Removed parts or items shall be tagged and marked and

the tags shall be attached to each mating part or item. The tags and printing

thereon shall be resistant to water, oil, and fading.

3.6.3 Lubrication. Rotating joints, bearings, and similar moving parts

shall be thoroughly lubricated. The lubricant shall be as specified in the

equipment specification or as approved by the contracting activity. Excess

lubricants shall be removed before packing operations.