Category VII (Submethod IId) Missile Component Items

TM 746-10

sufficient tension to ensure adherence and, where

a. Clean category VI items per process C-1 as

practical, interlace between locking devices. Place all

described in TM 38-230-1.

operating controls in an OFF or NEUTRAL position.

b. Accomplish drying, as required, immediately

(2) Place the equipment in controlled

after cleaning by one or more of five different

humidity shelters or vans. To provide this control, the

procedures defined in TM 38-230-1 provided the item

shelter or van must be a completely sealed unit with the

will not be damaged by the procedure.

port entry of the free breather the only opening allowing

c. Apply P-11 to those metal surfaces on which

the entry or exit of air. When the above has been

corrosion in any form would impair the usefulness of the

accomplished, the free breather assembly is ready for

part or assembly. All items that have had exterior

installation (fig 4-14 and 4-15).

surfaces coated with a preservative require a wrap of

(3) Because a standard adapter plate has not

greaseproof barrier material, or they should be placed

been provided, fabricate plate, by required size,

directly into a greaseproof bag. Wraps should be

according to selected application. Sheet metal may be

secured with tape.

used for the plate fabrication. The 3-inch outside

d. Unit pack items, preserved with P-11, wrapped

dimension hole should be centered on the plate as

and cushioned, as required, method I per recommended

shown in figures 4-14 and 4-15. Figure 4-15 shows one

procedures of TM 38-230-1.

type of adapter plate that is commonly use for the

e. Accomplish packing by placing a quantity of unit

breather installation. Drill a hole into the adapter panel

packed components into a wood or plywood box.

(fig 4-15) and insert a four-spot humidity indicator, NSN

Guidance in box fabrication, cushioning, blocking,

6685-00-618-1822. Secure the adapter plate at the

bracing, strapping, and weight limitations for the box is

selected ports using available means for securing. Seal

contained in TM 38-230-2.

the plate using rubber gasket material, NS 8030-00-682-

6422, (see fig 4-15).

4-123.

Category VII (Submethod IId) Missile

(4) Fabricate and install breather assembly as

Component Items

follows:

Antenna receiver

Shop equipment

(a) The breather drum (fig 4-14) should be

Battery control

Simulator station

located on the floor of the shelter near the wall vent.

Director station

Test equipment

Secure drum to floor with metallic or nonmetallic

Operations station

Test station

strapping or any suitable blocking material available.

Programmer test sta- Tracking station

(b) Attach the hose (fig 4-14) to breather

tion

drum and wall vent; secure with clamps. (THE NEXT

a. Clean category VII missile items per process C-

TWO STEPS SHOULD BE PERFORMED WITH THE

1 as described in TM 38-230-1.

DOOR OF THE SHELTER CLOSED.

b. Accomplish drying, as required, immediately

after cleaning by procedure D-4 as defined in TM 38-

desiccant (MIL-D-3716) in the drum bag; close the

230-1.

drum; and secure the lid with the locking ring.

c. Apply P-10 to those metal surfaces on which

(d) Fill desiccant sleeves for the static load

corrosion in any form would impair the usefulness of the

with an equal amount of desiccant as required in MIL-D-

part or assembly. Preservatives will not be applied to

3464. Suspend the sleeves above the load equally

the surfaces of parts or assemblies which are protected

distributed through the length of the shelter or van.

with solid film lubricants or plastic coatings, prime

(e) Using tape, secure a three-spot humidity

coated or painted, or are vulnerable to damage by

indicator, MS 20003-2, to a piece of barrier material

contact preservatives. All items having their exterior

(either MIL-B-121 or MIL-B-131) and tape to the inside

surfaces coated with a preservative require a wrap of

of the main entry door. The barrier material will be at

greaseproof barrier material. Wraps should be secured

least one-half inch larger on all sides than the indicator

with tape.

card and will be taped to the entry door so it is between

d. Package category VII items mounted in shelter

the door and the indicator card.

and van-type trucks and trailers submethod IId per the

(f) Secure the main door with tape according

following instructions and guidelines:

to MIL-STD-22085 or caulk all door seams using caulk

(1) Completely immobilize all miscellaneous

with NSN 8030-00-682-6422.

carried equipment using provided locking or securing

(5) Crate the shelter in order to provide physical

devices.

Place cabinet doors, drawers, and trays

protection. Fabricate the crate by following

provided with locking devices in locked position and

secure with filament reinforced tape. Apply tape with

4-56