21
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Book 22464945 (1/07)
SECTION 4 -- OPERATING INSTRUCTIONS
OPERATING CONTROLS & INSTRUMENTS
Instrument Control Panel
1.
Compressor Disch. Pressure Gauge --
Indicates pressure in receiver tank, normally
from 0 psi (kPa) to the rated pressure of the
machine.
2.
Lamp -- Controlled by Switch 11.
3.
Engine Tachometer --
Indicates engine
speed in RPM from 0 when stopped to full
speed.
4.
Discharge Air Temperature Gauge --
In-
dicates in
°
F and
°
C.
Normal
operating
range:185
°
F/85
°
C to 230
°
F/110
°
C.
5.
Fuel Level Gauge --
Indicates amount of
fuel in tanks.
6.
Engine Oil Pressure Gauge --
See Engine Op-
eration Manual for normal range.
7. Hourmeter --
Records running time for mainte-
nance purposes.
8.
Voltmeter --
Indicates battery condition.
9.
Engine Water Temperature Gauge --
Indi-
cates coolant temperature, with normal operating
range from 180
°
F(82
°
C) to 210
°
F(99
°
C).
CONTROLS
10. Power Switch --
Flip ”On” to operate, ”Off” to
stop.
11. Lights Switch --
Operates Lamp 2 and those
within gauges.
12. Heaters Switch --
Activates control system heat-
ers for operation below 32
°
F(
°
C).
13. Service Air Button --
After warm up, provides full
air pressure at the service outlet.
14. Bypass Button --
Bypasses automatic shutdown
circuit.
15. Start Button --
Activates the engine starter.
16. Ether Inject Button --
Injects a measured shot.
USE SPARINGLY.
DIAGNOSTICS / AUTOMATIC SHUTDOWN
17. High Compressor Temperature --
248
°
F(120
°
C) or more.
18. Low Engine Oil Pressure --
12 psi or less.
19. High Engine Temperature --
Coolant above
215
°
F (102
°
C).
20. Low Fuel Level --
Comes on first as a warning
and eventually triggers a shutdown.
21. Alternator Not Charging --
Needs attention.
22. Low Coolant Level --
Dangerously low; needs
attention.
23. Air Filters Restricted --
Need servicing.