CCS PORT--It illuminates green when the
running or are not ready. These auxiliary systems
CCS is in control of the port MER.
are the FO, LO, MRG, and bleed air systems. The
status indicator labeled STAND BY illuminates
LOS NO 2--It illuminates red when the
white when the auxiliary systems are ready. The
local operating station has control.
systems and conditions required for this indicator
to illuminate are as follows:
FO header pressure > 40 psig
LO header pressure > 9 psig
MRG turning gear disengaged
Bleed air header pressure > 40 psig
The status indicator labeled RUNNING
illuminates white when
> 4300 rpm,
the GTM has NG
G
T5.4 > 400F, and
The following alarm indicators, located to the
the clutch is disengaged.
left and right of the edgewise meter labeled
TORQUE, are on the DD PACC console. We will
The status indicator labeled ON LINE
describe these 12 alarm indicators first, then
illuminates white when the engine is running and
describe the 3 alarm indicators that are different
the clutch is engaged. The status indicator
on the CG PACC.
labeled BRAKE ON illuminates red when the PT
The first alarm indicator on the left side is
brake is on, and the status indicator labeled
labeled JOURNAL BEARING TEMP HI. It
BRAKE OFF illuminates green when the PT
monitors all of the MRG journal bearings and
brake is off.
illuminates red if one (or more) of the bearings
temperature(s) exceeds its high temperature set
The next four status indicators are for the
point. The alarm indicator labeled THRUST BRG
clutches. The first two on the left are labeled
TEMP HI illuminates red if one (or more) of the
CLUTCH ENGAGED and CLUTCH DISEN-
three thrust bearings monitored exceeds its high
GAGED. They illuminate (either green or white)
temperature set point. The three bearings
to indicate the clutch status. The two clutch alarm
monitored are a thrust bearing in each of the two
indicators on the right are labeled CLUTCH
GTM clutch/brake assemblies and the MRG
FAIL TO ENGAGE and CLUTCH FAIL TO
thrust bearing. The alarm indicator labeled
DISENGAGE on the DD console. On the CG
SHAFT BRG TEMP HI monitors the line shaft
console they are labeled CLUTCH FAIL TO
bearing temperature. It illuminates red when one
ENGAGE and CLUTCH LOCKED OUT. On
or more of the line shaft bearings exceeds its high
either the DD or the CG console, these indicators
temperature set point. The status indicator labeled
illuminate amber to indicate the clutch status.
SHAFT LOCKED illuminates red when the shaft
lock mechanism on the MRG turning gear is
Between the two engine mimics, under the
engaged. The alarm indicator labeled SHAFT
label STATION IN CONTROL, are three status
TORQUE HI illuminates red to indicate high
indicators. These status indicators and the
shaft torque. This indicator is set to alarm
conditions required for them to illuminate are as
at different set points for either one-engine
follows:
operation or two-engine operation. The status
indicator labeled OVERTORQUE CONTROL
ON illuminates amber when the engine is in
PILOT HOUSE--It illuminates green
torque limiting. It flashes intermittently as the
when the pilot house is in control.
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