REAR CONTROL PANEL 1A4A4 - Continued.
HEATER STAGE 3 Power On Switch/Indicator 1A4A4S4/DS3
Selects heat stage 3 when ESS MODE selector switch is in HEAT position. 3.0 kW HTR ON
indicator lights (green) when switch is pressed. 10 kW TQG supplied with CBPS will not
support this heat setting in external power mode. Use of this heat stage is only supported
utilizing a 30 kW generator in external power mode or supplemental power source (such as 10
kW TQG) in internal power mode.
CHEMICAL SENSOR Switch/Indicator 1A4A4S7/DS8
CHEM SENSOR IN ALARM indicator lights (red) to show that a chemical threat has been
detected by remote M43A1 chemical detector. This will also trigger NBC system to operate and
NBC alarm (15) to sound.
ENGINE COOLANT TEMP Indicator 1A4A4DS22
TEMP HIGH indicator lights (red) when temperature of ECV engine coolant is too high
(greater than 230F on ECV coolant gage).
NBC AIRFLOW Indicator 1A4A4DS24
LOW NBC AIR FLOW indicator lights (yellow) when CBPS air pressure falls below 0.3 iwg or
air flow falls below 270 cfm of air. Indicator also lights (yellow) when NBC fan switch is turned
on. Light goes off when NBC SHELTER PRESSURE gage indicates 0.3 iwg.
Running CBPS under low hydraulic fluid condition can damage hydraulic components. CBPS
should only be run under low hydraulic fluid conditions in life threatening conditions.
HYDRAULIC FLUID ALARM (PRESS TO OVERRIDE) Switch/Indicator
DANGER LEVEL indicator lights (red) and audible alarm (38) sounds when hydraulic fluid
reservoir is too low for safe operation. OVERRIDE indicator lights (blue), disables the audible
alarm (38) and allows CBPS to operate under low hydraulic fluid conditions.
ENGINE OIL PRESSURE Indicator 1A4A4DS23
PRESS LOW indicator lights (red) when ECV engine oil pressure is too low (less than 6 psi on
ECV oil gage).
Running CBPS under severe hydraulic fluid leakage will cause hydraulic components to
operate improperly. CBPS should only be run under severe hydraulic fluid leakage in life
HYDRAULIC FLUID LEVEL (PRESS TO OVERRIDE) Switch/Indicator
CHECK OIL indicator lights (yellow) when hydraulic fluid level in reservoir is low or a severe
hydraulic fluid leak has occurred. OVERRIDE indicator lights (blue) when pushed and
CHECK OIL indicator is disabled. Also, allows CBPS to operate under low hydraulic fluid
HYDRAULIC OIL TEMP Indicator 1A4A4DS10
TEMP HIGH indicator lights (red) when temperature of fluid in hydraulic system reaches
212F. This shuts down HEAT or COOL and allows fluid to self cool.