DESCRIPTION AND USE OF OPERATOR CONTROLS AND INDICATORS
Do not attempt to operate the scraper until becoming familiar with the location and use of all controls and indicators. This
work package describes all operator controls and indicators.
Gages and Indicators.
CONTROL OR INDICATOR
Low Air System Pressure
Illuminates when the air system pressure is below 65 psi (448 kPa).
Alarm buzzer will also sound.
Engine Coolant Temperature
Indicates temperature of engine coolant. Normal operating range is in
the white range or green range. Red range indicates overheating
Air Pressure Gage
Indicates air system pressure. Normal operating pressure is 110 +/-10
psi (758 +/-69 kPa). When air system pressure drops below 65 psi (448
kPa), warning buzzer will sound and the warning indicator will
Service Hour Meter
Records total engine operating hours. Used to determine service