Checking Unpacked Equipment

TM 11-6780-225-12

2-4. Interconnections

m. Unstrap the diffusion transfer kit (fig. 5-2).

WARNING

Be careful when working on the 120/

n. Remove contents of storage drawers numbered

208-volt alternating current (ac) line

1 through 8 (figs. 1-2 through 1-8) as required.

connections. Serious injury or death

may result from contact with these

o. Release the refrigerator door holding latch (fig.

terminals. DON'T TAKE CHANCES!

5-2).

a. Power. Determine the voltage and type of

p. Remove the part kits for the print processor

electric current available before connecting the

stored in the print processor solution tray (TM 11-6740-

darkroom to a commercial power source (c below) or

287-12).

generator set power (d below).

The darkroom is

designed for operation from a 220-volt, 60-cycle, 3-

chase, 4-wire wye electrical power source.

q. Check to see that circuit breaker panel door is

unlocked at all times.

WARNING

The darkroom must be grounded ( b

WARNING

below) to prevent a serious electrical

Make certain that circuit breaker

shock when standing on the ground

panel door is unlocked at all times.

and contacting the darkroom.

r. Remove the exhaust pipe (fig. 5-1) from the file

b. Grounding. To ground We darkroom, proceed

cabinet (fig. 5-2).

as follows:

s. Remove the straps from the silver recovery unit.

(1) Drive ground rod (fig. 1-11) into the

ground approximately 3 feet deep and 2 feet from the

2-3. Checking Unpacked Equipment

ground tie point (fig. 5-1). Insure that the ground

contains moisture. If the ground is dry, wet the area

a. Checking Equipment for Completeness. Check

around the ground rod with water.

to see that the darkroom is complete (figs. 5-1 and 5-2)

and check the equipment against the basic issue items

(2) Connect the ground strap attached to the

list (app. B). Report all discrepancies (para 1-4).

ground rod, to the ground tie point (fig. 5-1) on the

Check the contents of storage drawers 1 through 8

darkroom and secure it.

against figures 1-2 through 1-8. Check the contents of

the sink against figure 1-12.

NOTE

WARNING

Interconnect the air conditioners as

Check that the gage on the fire

shown in figure 2-2 before applying

extinguisher (fig. 5-2) indicates a

power to the darkroom.

safe charge.

NOTE

c. Commercial Power Connection. To connect the

Storage of a minor assembly or part

darkroom to a commercial power source, proceed as

that

does

not

affect

proper

follows:

functioning of the equipment should

not prevent use of the equipment.

(1) Check that all circuit breakers on the

b. Checking Equipment for Damage. Inspect the

circuit breaker panel (fig. 2-11) are set to OFF. Ensure

darkroom and components for damage incurred during

that all power switches of the individual equipments in

shipment. Check that there is no damage to power

the darkroom are in the OFF position. Disconnect the

cables (fig. 1-11) and to water and drain hoses (fig. 5-

line plug of the refrigerator from circuit 4.

2). Report all damaged equipment (para 1-3).

(2) Remove the cover from the darkroom

c. Checking Equipment for Modifications. If the

electric power connection (fig. 5-1).

darkroom has been used or reconditioned, see whether

it has been changed by a modification work order

WARNING

(MWO). If the equipment has been modified, the MWO

Connect power cable to darkroom

number(s) will appear on the front panel near the

electric power connection before

nomenclature plate. Check to see whether the modified

connecting to power source.

equipments are covered in the manual.

(3) Connect one end of the power cable to

NOTE

the darkroom electric power connection.

This manual does not include

modification work orders (MWO).

Change 6 2-2