TM 55-4920-328-13
test jacks. These test points are identified, top to bottom
and left to right, as: 50KHZ, sensor amp, temp analog,
output
to
display,
+26V,
-26V,
OV,
and
0-.1V,
respectively. A three-conductor cable 144 inches long,
terminating in MS25036-106 terminal lugs, is utilized to
connect the unit to the high-temperature cable which is
attached to the probe. The probe is designed so that the
significant range is from approximately 60 pounds to 80
pounds. The oil quantity gaging sub-system consisting of
the unit, probe, and a source of electrical power, indicates
the mass of oil in a tank at any time during use. The
subsystem is capable of detecting a change of hot oil
mass as small as 0.02 pound during oil tank drainage.
6. Receptacle
assembly
2A11.
The
receptacle assembly (36, figure 1-23) is installed on the
analyzer sub-module assembly to provide an electrical
outlet for the convenience of the test technician when
external power is required. The receptacle assembly
consists of a receptacle (37) having two outlets, installed
in a panel 19 inches wide and 3.47 inches high. A three-
conductor, No. 16 AWG wire cable 42 inches long
connects the receptacle to 117v ac, 60 Hz, single-phase,
threewire facility power within the cabinet.
(g) Operator's sub-module (Unit 3). The
operator's sub-module (figure 1-24) consists essentially of
a sheet metal cabinet assembly containing the primary
controls and indicators used during operation of an engine
under test. The unit also contains power and signal
distribution terminal board assemblies, hydraulic tube
assemblies, and cable assemblies for connection with
other units in the system. Unit 3 mounts the following
electrical components:
Operator's Panel Assembly 3A1 (1)
Operator's Panel Assembly 3A2 (7)
Operator's Panel Assembly 3A3 (34)
Engine Safety Unit 3A4 (279, figure 8-17)
The operator's sub-module cabinet assembly is similar to
the cabinet assembly incorporated in the other three sub-
modules. The unit provides an enclosure for installation
and connection of electrical and hydraulic control and
monitor components. Housed within the cabinet
assembly are 8 hose assemblies, 28 cable assemblies, 3
terminal board assemblies, and miscellaneous parts
consisting of 6 lacing bars and lacing bar assemblies, 8
left and right support brackets, and a bottom connector
mounting panel assembly. Four hydraulic master control
units and associated filler and bleed units and connecting
tube assemblies are installed on the horizontal writing
surface attached to the front of the four cabinet
assemblies in the control cab module. These master
control units are provided for control of fuel and water
inlet and outlet pressures during test of an engine. A
shaded light assembly is installed on the upper front of
the cabinet assembly to provide illumination during
operation of the system or when maintenance is required.
The significant components of the operator's sub-module
assembly are described in subsequent paragraphs.
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