and stow entrance ladders (fig.
(3) With auxiliary air supply connected,
inspect lines, connections, fittings,
Caution: This operation must be performed
controls, and instruments for leaks,
before attaching tractor to semitrailer.
security, and proper operation.
d. Disconnect external power source(s), elec-
trical or pneumatic.
Movement of Equipment
a. Open van in accordance with instructions
f. Remove chocks and secure in "travel"
Section IV. OPERATION OF ONE UNIT IN CONJUNCTION
WITH ANOTHER ACCESSARY OR AUXILIARY
shop is used for incoming or outgoing auxil-
Auxiliary equipment may be operated in
conjunct ion with Shop Set, Aircraft Mainte-
78. Air Supply Tank
nance, Semitrailer Mounted, C-4, Sheet Metal,
The adapter connection used to transfer com-
by use of auxiliary electrical connections and
pressed air to an auxiliary shop is located at the
by use of an adapter installed on the air supply
front of the air supply tank and is used to con-
tank for pneumatic connections.
nect a hose from the tank to the auxiliary shop.
Note. This adapter is the same that is used to re-
77. Auxiliary Electrical Connections
ceive an external air power source; therefore it is
An auxiliary outlet at the left rear of the
usable only when the compressor is being operated.
Section V. OPERATION UNDER UNUSUAL CONDITIONS
Caution: Canvas should not be stored when
This section contains information pertinent
to second echelon maintenance operation of
81. Extreme Cold Weather Conditions
Shop Set, Aircraft Maintenance, Semitrailer
Mounted, Set C-4, Sheet Metal Shop, under un-
Special equipment is provided for the pro-
tection of equipment in extreme cold weather
for additional informtion. Report recurrent
conditions (below 0F.). Individual items of
failure of equipment resulting from operation
equipment should be protected in accordance
under unusual conditions on DA Form 468.
TM 9-233023814 for specific information
80. Removable Canvas Side Walls
concerning the van which houses the shop.
The removable canvas sidewall has four sec-
tions. The side walls are fastened at the top
82. Extreme Hot Weather Conditions
with snap-type fasteners. The bottoms are at-
tached with web belting, incorporating quick
Frequent inspections of bearings, cooling
releases and belt-tightening features. The bot-
in extreme hot weather to insure proper opera-
tom edges also have 1 2 inch grommets so
that rope may be used in lieu of the web straps
for additional instructions regarding opera-
when needed. Attached to the bottom side
doors are cleats for use with either the web
tion of equipment in extreme hot weather
strapping or the rope (fig. 32).