MMD Equipment 185S-6C1 - Manual (Page 32)

4. Operation
4-14
4.4.4 Gauge Indication while Operating
Minimum discharge air pressure is 0.39MPa during load operation.
Continuing equipment operation at a lower pressure than the above pressure may cause overheating,
since it affects the separation of lubricating oil inside the oil separator and reduces the oil flow to the
compressor air-end, resulting in temperature rise.
Be sure to check at times to see if gauges or each component of the unit are properly working, or if
there is any air-leak, oil-leak, water-leak or fuel-leak etc.
During normal operation, each indication of instruments is shown in the table below. Refer to the
table for daily checks.
The above table gives standard values. They may vary slightly depending on the operating condi-
tions and other factors.
Emergency stop Lamp
Protection
device
Discharge
temperature
Water
temperature
Engine oil
pressure
Low fuel
level
Fuel filter
drain
Monitor
Starting
Starter
switch set
to “RUN”
position
n
OFF
n
OFF
n
OFF
n
OFF
n
OFF
In Operation
n
OFF
Warning Lamp Indicator lamp
Protection
device Charge
Compressor
air filter
Engine
air filter
Glow
Auto
idle
Monitor
AUTO
IDLE
Starting
Starter
switch set
to “RUN”
position
○
ON
n
OFF
n
OFF
＊
n
OFF
n
OFF
In Operation
n
OFF
Note:＊: Lamp goes off after preheating completed.
Discharge air
pressure gauge
Full load
72.5-100 psi
(5-6.9 bar)
Unload
104-131 psi
(7.2-9.0 bar)
In
operat
ion
Auto idle
43.5-58 psi
(3.0-4.0 bar)