1-6. Notes, Cautions, and Warnings.
Warnings, cautions, and notes emphasize important and critical instructions. They are defined as
An operating procedure-or practice which, if not correctly followed, will
result in personnel injury or loss of life.
An operating procedure or practice which, if not strictly observed, will
result in damage or destruction of equipment.
An operating procedure or condition which it is essential to highlight.
SECTION II EQUIPMENT DESCRIPTION AND DATA
1-7. Test Set Description.
a. (See fig. l-l.) The test set includes electrical unit 145GS278-3 and hydraulic unit 145GS278-2.
Both of these units include stored accessories.
b. The electrical unit provides electrical control voltage and excitation voltage to the ILCA extensi-
ble link, and monitors its feedback. The electrical unit is electrically interlocked with the hydraulic
unit to provide emergency hydraulic shutoff control from the electrical unit or the hydraulic unit.
c. The hydraulic unit contains attachment manifolds for an ILCA or an extensible link. It has meters
and valves for monitoring and controlling inlet or outlet pressures of the ILCA or link. Mechanical
output is monitored using dial indicators. Leak tests can be performed.
d. Electrical cables and instruction manuals are stored in the cover of the electrical unit.
1-8. Electrical Unit Description.
(See fig. 1-2.) The electrical unit provides the electrical excitation and control necessary to test an ILCA
which includes an extensible link or an extensible link separately. Direction, rate, and amount of exten-
sible link movement can be controlled and monitored by the test set. The link can be operated in an
open loop or closed loop system. Link position is monitored by sensing feedback signals from two
transducers. The test set panel is divided by system: SYSTEM 1, left side and SYSTEM 2, right side.
Each side contains controls and an analog meter for selecting a specific actuator function and monitor-
ing the result. A digital voltmeter (DVM), with SYSTEM SELECTOR switch, monitors test results for
both systems. External meter connections are provided for both systems.