16 OPERATING INSTRUCTIONS
9/270, 9/300, 12/235, 17/235, 21/215, 9/270HA, 9/300HA, 10/300HA, 12/235HA, 17/235HA, 21/215HA
OPERATING CONTROLS AND INSTRUMENTS
The operating controls and instruments are arranged on the control
panel as shown above. A description of each panel device is as
follows:
1. Panel Light: Illuminates the instrument control panel controlled
by Switch 14.
2. High Compressor Temp: Fault indicator lamp. Indicates
shutdown due to high compressor temperature.
3. Low Radiator Coolant Level: Alarm indicator lamp. Indicates
engine coolant needs service.
4. Low Engine Oil Pressure: Fault indicator lamp. Indicates
shutdown due to low engine oil pressure.
5. Restricted Air Filter: Alarm indicator lamp. Indicates engine/
compressor air inlet filters need service.
6. High Engine Coolant Temp: Fault indicator lamp. Indicates
shutdown due to high engine water temperature.
7. Restricted IQ Air Filters: Fault indicator lamp. Indicates
shutdown due to high pressure in ”IQ” air filters (if equipped).
8. Low Fuel Level: Fault indicator lamp. Indicates shutdown due to
low fuel level. Lamp blinks at low fuel warning.
9. Compressor Malfunction: Fault indicator lamp. Indicates
shutdown due to compressor system fault. Refer to Fault Code
List.
10. Low Battery Voltage: Alarm indicator lamp. Indicates battery or
charging system requires service.
11. Engine Malfunction: Engine Fault code. Refer to service card or
engine manual for codes and service requirements.
12. Malfunction Code (4 Digit): Compressor or engine fault. Refer
to manual for list of codes and service requirements.
13. Inlet Heater / Wait to Start Lamp: Indicates engine manifold pre
heater is energized. Wait until lamp extinguishes before engaging
starter.
14. Panel Light Switch: Controls panel lamp # 1.
15. Service Air Switch: Momentary contact switch. Allows engine to
warm up at low compressor pressure.
16. ON/OFF Start Switch: Main Power Control Switch.
17. Heater Switch: ON/OFF Power Switch for regulation and IQ
heaters. Prevents freeze up in cold weather.
18. Hourmeter: Indicates machine operating hours.
19. E-STOP: Emergency Stop Push Button (ESA units only). Push to
stop, turn to release.
20. Discharge Air Pressure Gage: Indicates pressure in receiver
tank, normally from 0 psi(kPa) to the rated pressure of the
machine.
21. Engine Tachometer: Indicates engine speed in RPM from 0
when stopped to full speed.
22. Fuel Level Gage: Indicate fuel level in tank.
23. Engine Water Temp Gage
24. Compressor Oil Temp Gage
25. Engine Oil Pressure Gage
26. Battery Voltage Gage
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