MMD Equipment 185S-5C2 part 1 - Manual (Page 31)

4. Operation
4-13
4.4.4 Gauge Indication while Operating
Minimum discharge air pressure is approx.58psi (4bar) 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 values mentioned in following table are standard ones, so they sometimes vary
upon operation conditions.
Emergency stop Lamp Warning Lamp
Protection device
Discharge
temperature
Water
temperature
Engine oil
pressure
Charge
Compressor
air filter
Engine
air filter
Monitor
Starting
Starter switch
set to “RUN”
position
n
OFF
n
OFF
n
OFF
○
ON
n
OFF
n
OFF
In Operation
n
OFF
Indicator lamp
Protection device
Glow Auto idle
Monitor AUTO IDLE
Starting
Starter switch
set to “RUN”
position
n
OFF
n
OFF
In Operation
n
※ 1 OFF
Discharge air
pressure gauge
Full load
58-100 psi
(4-6.9 bar)
Unload
104-131 psi
(7.2-9.0 bar)
In operati
on
Auto idle
50-65 psi
(3.5-4.5 bar)
Note)※1：The lamp lights on when AUTO IDLE is
selected.