Chapter 2. OPERATING INSTRUCTIONS - TM-9-4931-378-13-P0017

TM 9-4931-378-13&P

CHAPTER 2

OPERATING INSTRUCTIONS

Section I. GENERAL

accordance with the instructions of TM 38-750.

2-1. Unpacking. The test set is contained in the metal

The equipment should be placed in service even

case, All interconnecting test cables and fixtures are stored

though a minor assembly or part that does not

in a compartment in the case cover. Upon original receipt,

affect proper functioning is missing.

only the removal of the case from the packing container is

Check to see whether the equipment has been

required to prepare the equipment for use. The following

modified. (Equipment which has been modified

equipment is included in the test set:

will have the MWO number on the front panel near

the nomenclature plate.) Check also to see

Test Set, Air Data Subsystem

whether all currently applicable MWO have been

Fixture, Checking

applied. (Current MWO applicable to the equip-

Kit, Pneumatic

ment are listed in DA PAM 310-7.)

Tubing (5 four-foot lengths)

AC Power Cable Assembly W1

2-3. Damage From Improper Settings. The test set is pro-

DC Power Cable Assembly W2

t e c t e d from overload and short circuit conditions by

LAI Cable Assembly W3

internal protective devices. No damage can be caused

EPU Cable Assembly W4

through normal use of front panel controls. However,

AADS Cable Assembly W5

normal precautions must be exercised to avoid injury to

Adapter Assembly W6

personnel. Shut off bench power (115 Vac and 28 Vdc)

before connecting or disconnecting the power cables W1

2-2. Initial Inspection. After unpacking, the following in-

and W2. When connecting or disconnecting cables W3

spection procedure shall be performed:

through W5, be sure that circuit breakers CBI and CB2 are

a. Inspect the equipment for damage incurred during

OFF.

shipment. If the equipment has been damaged,

report the damage on DD Form 6.

2-4. Operator's Controls. The test set controls, indicators

b. Check the equipment against the component list-

and connectors are shown in figure 2-1 and explained in

table 2-1. Refer to the Glossary for complete nomenclature

ing in the manual and the packing slip to see if the

description.

shipment is complete. Report all discrepancies in

Table 2-1. Controls, Indicators and Connectors

Control, Indicator

Fig. 2-1

Index No.

or Connector

Function

EPU TEST SECTION

Generates sin α and cos α analog signals to simulate AADS

resolver B1

outputs for testing the EPU.

and cos

analog signals to simulate

Generates sin

AADS outputs for testing the EPU.

Displays 8-bit binary word. Bit 0 is LSB and Bit

DATA WORD binary display

7 is MSB.

Indicators DS1 through DS8

Sw Pos

Specific

Functions

DATA MODE three position

toggle switch S1

CONT

Selects continous data from EPU

HOLD

Selects hold mode of data from EPU

RPT

Selects repeat of data from EPU

2-1