CHAPTER 2
SERVICE UPON RECEIPT AND INSTALLATION
Section I. SERVICE UPON RECEIPT
2-1. Packaging Data
a. Power Supply PP-7549/U may arrive packed
for either domestic or overseas shipment.
b. When Power Supply PP-7549/U is packed for
overseas shipment it is placed in a lightweight
packing material and is placed in a corrugated car-
ton. The carton is sealed with gummed tape. The
boxed equipment is then placed in a moisture-
vaporproof barrier, which is heat-sealed, and this
package is placed in a waterproof corrugated carton.
The technical manuals are placed under the lid and
the carton is sealed with waterproof tape. The
packaged battery pack is placed in a wooden ship-
ping container with a waterproof case liner. The
wooden container is reinforced with flat metal
straps.
2-2. Unpacking
a. For unpacking overseas shipment equipment,
proceed as follows:
(1) Cut the metal straps with a suitable cutting
tool, or twist them with pliers until the straps break.
Remove the straps.
(2)
Remove the nails from the top and one side
of the wooden case. Do not attempt to pry off the
sides and top. Such action may damage the equip-
ment.
(3) Remove the corrugated filler from the
packing case and lift the packaged equipment out of
the case.
(4) Open the outer corrugated carton and break
the sealed moisture-vaporproof barrier. Lift out the
inner corrugated carton.
(5) Open the inner corrugated carton and
remove the battery pack. Read and observe the
charging instructions fully before connecting the
battery pack to an oscilloscope.
b. The battery pack may be received in domestic
packing cases. The instructions given in a above,
also apply to unpacking domestic shipments. If
heavy wrapping paper has been used, remove it
carefully and take out the battery pack.
2-3. Check Unpacked Equipment
a. Inspect
the equipment for damage incurred
during shipment. If the equipment has been
damaged, report the damage on SF 964 (para 1-3b).
b. Check the equipment for completeness against
the packing slip.
Report all discrepancies in accordance with
paragraph 1-3. The equipment should be placed in
service even though a minor assembly or part that
does not affect proper functioning is missing.
c. Check to see if the equipment has been
modified. Modified equipment will have the MWO
number on the front panel near the nomenclature
plate. Check also to see whether all currently ap-
plicable MWO’s have been applied. (Current MWO’s
are listed in DA Pam 310-4).
d. After the equipment has been thoroughly
checked, clean with a soft cloth.
Section II. INSTALLATION
2-4. Attaching The Battery Pack
a. The battery pack is equipped with four per-
manently attached clamps that are designed to fit
and attach to the feet of the portable Oscilloscope
OS-261 (Tektronix Model 475 Option 7). Set the
oscilloscope on the battery pack and observe that
the oscilloscope feet seat properly in the clamps.
Press the moveable part of the clamp inward until a
positive fit is accomplished.
b. The dc power cord attached to the battery pack
is to be plugged into the dc socket of the
oscilloscope. Refer to chapter 3 prior to placing the
battery pack into operation.
c. The ac power cord to the battery pack is not
used while the battery pack is in operation. Store
this ac cord in a method so that it will not incur
damage during movement of the oscilloscope and
battery pack from one working area to the next.
d. It may be advantageous to use the battery
pack and the oscilloscope as separate units as each
item is equipped with its own carrying handle. With
care, the two units may be carried short distances
by two persons without disconnecting the dc power
cord while still in the operational mode, thus
realizing the full portability of these two units.
2-1
