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TM 746-10
e. Shroud the complete unit, except tanks, with
4-25. Clothing, Textile, and Shoe Repair Shops
polyethylene film and secure in place with tape.
a. Preserve generator, electric motors, trailer
chassis, and handtools per applicable paragraphs of this
4-22. Refrigeration Units, Gas Engine and Electric
chapter.
Motor-driven
b. Coat all unprotected metal surfaces and moving
a. Refrigerant
compressor.
Operate
the
parts of machine heads with P-10. Shroud each head
compressor simultaneously with the preservation of the
with greaseproof barrier material and secure with tape.
engine (or run electric motor for sufficient length of time)
Remove lights and thread stands and individually pack
to ensure coverage of all internal surfaces with oil.
in fiberboard boxes. Secure packs to the appropriate
Attach a tag to the compressor containing the
machine stand from which removed.
information:  "COMPRESSOR CRANKCASE FILLED
c. Secure  removable  pulley  belts  to  the
WITH OPERATING OIL."
appropriate machinery with tape.
b. Refrigerant system, condenser, and receivers.
Pump down the refrigerant system and close the valves.
4-26. Cargo Sets
Do not apply preservative oil to the internal surfaces of
a. Handtools will be preserved and packed per
the refrigerant condensers and receivers. Attach a tag
to the compressor or operating controls containing the
b. Coat unpainted or unprotected surfaces of
following information:
"OPEN VALVES BEFORE
hooks slings, shackles, clamps, vises, spreaders, wire
OPERATING THE COMPRESSOR."
rope, etc., with P-1.
c. Gasoline engine and electric motor.  Preserve
c. Place component items of cargo sets and
engines and electric motors per paragraph 3-3.
secure within the chest provided.  The chest will not
4-23. Air Conditioners
require overpacking.
a. Refrigerant system. When pump down means
4-27. Insecticide Sprayers
are provided, pump down the refrigerant system leaving
a. Thoroughly flush lines, pumps, hoses, and
the low-pressure side of the system with a positive,
insecticide containers with fresh water and dry with dry
pressure-holding charge. Attach a tag to the electrical
compressed air.
power connection or the starting system containing the
b. Preserve  engines,  pumps,  and  tanks  per
following  information:
"OPEN  VALVE  BEFORE
EQUIPMENT  IS  OPERATED."  Do  not  apply
preservatives to the refrigerant system, piping, or
c. Coil hoses and secure with tape. Secure hoses
valves.
on reels to prevent the hose from unwinding.
b. Power supply cable.  Coil and secure power
d. Coat unpainted, unprotected, ferrous metal
supply cable by tying or taping.
surfaces with P-1.
c. Air ducts.  Wrap air ducts individually with
greaseproof barrier material and secure with tape.
4-28. Gas Generating and Charging Plants:
Place air ducts in compartments provided or secure to
Acetylene,
Carbon-dioxide,
Oxygen-nitrogen,
trailer. Place the canvas cover over the air conditioner.
Semitrailer-mounted. Cleaning and drying will be per
d. Gasoline engine, electric motor, and trailer
paragraphs 3-3 and 3-4 and as specified in MIL-C-
chassis.  Preserve engines, motors, and chassis per
52211.
a. Vent openings.  Seal vent openings on trailer
roof with waterproof barrier material and secure with
4-24. Welding Equipment
plastic tape.
a. Preserve the engine or electric motor per
b. Compressors.
Operate acetylene and air
compressors for sufficient length of time to ensure that
b. Seal all openings that will permit entry of water
all interior surfaces are coated with lubricant.
with tape.
c. Personnel heaters. Remove igniter plugs and
c. Coat unpainted, unprotected, ferrous metal
fog combustion chamber with P-10.
surfaces of set components with P-10 and cover or wrap
d. Charging lines. Pack in fiberboard boxes.
with greaseproof barrier material.  Pack component
e. Refrigeration  system.
Pump  down  the
items not requiring a contact preservative method III in
refrigerant system, leaving the low-pressure side of the
fiberboard boxes.
system with a positive, pressure-holding charge.
4-5

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