TM 11-5805-424-15/NAVELEX 0967-220-9010/TO 31W2-2G-41
CHAPTER 2
INSTALLATION
Section I. SERVICE UPON RECEIPT OF EQUIPMENT
(3) Open
the
waterproof,
corrugated
2-1. Unpacking
cardboard, outer carton.
(4) Remove the spacers and pull out the
a. Packaging Data. When packed for domestic
waterproof, corrugated cardboard, inner carton.
shipment, the MX-73(*)/G and the OA-8072/G are
(5) Open the corrugated cardboard, inner
installed in the MD-674(P)/G. The MD-674(P)/G is
carton and remove the waterproof barrier bags which
placed in a waterproof, corrugated cardboard, inner
contain the spares and the technical manuals.
carton and then inserted in a waterproof, corrugated
(6) Lift the MD-674(P)/G from the waterproof,
cardboard, outer carton. For export shipment, the outer
corrugated cardboard, inner carton.
carton is packed in a wooden case. The wooden case is
17 1/2 inches high, 23 1/2 inches wide, and 28 3/4
2-2. Checking Unpacked Equipment
inches long, and weighs approximately 85 pounds.
a. Inspect the equipment for any loss or damage
b. Unpacking.
For domestic shipment, omit
that might have occurred during shipment. If the
procedures given in (1) and (2) below.
equipment has been damage(d, or is incomplete, refer
(1) Cut and fold back the metal straps.
to procedures given in paragraph 1-3.
CAUTION
b. Check the equipment against the packing list.
c. If the equipment has been used or
Do not attempt to pry off the wooden
reconditioned, check to see if is has been changed by a
cover.
Prying may damage the
modification work order (MWO). If the equipment has
equipment.
been modified, the MWO number will appear on the
(2) Remove the nails from the wooden cover
front panel near the nomenclature.
and remove the wooden cover.
Section II. INSTALLATION
b. Disengage the cable connector at the rear of the
2-3. Installation Procedures
chassis (fig. 1-4).
The MD-674(P)/G may be installed in a standard, 19-
c. Depress the slide release button on each side of
inch relay rack. It requires 12 13/16 inches of vertical
the chassis and pull the chassis out of the case.
rack space. Install the MD-674(P)/G in a relay rack as
d. Position the case in the relay rack and secure
follows:
the case to the relay rack with a panel bolt in each
CAUTION
retaining slot of the mounting flange (fig. 1-1).
e. Position the chassis in the case and slide it back
Do not install the MD-674(P)/G
until the slide stops engage.
directly above, below, or adjacent to
equipment which generates exces-
CAUTION
sive heat.
Excessive heat will
A radio frequency interference (rfi)
damage the transistors.
gasket is used in the front panel to
a. Unscrew the screws that secure the front panel
prevent signal
to the outer case, and slide the chassis forward until the
slide stops are reached.
Change 2 2-1
