2: Description 1600H T4F Perkins User Manual
02250248-733 R03
28 Subject to EAR, ECCN EAR99 and related export control restrictions.
Fluid is added to the receiver tank via a capped fluid filler.
A fluid level sight glass enables the operator to visually
monitor the receiver tank fluid level.
2.6 Control system, functional
description
Refer to Section 2: Piping & instrumentation, compressor
system on page 34 and Figure 7-3: Pneumatic control
system on page 66. The purpose of the control system is
to regulate the amount of air intake in accordance with
the amount of compressed air demand. The control sys-
tem consists of an inlet valve, pressure regulator, a blow-
down valve, the controller and a LOAD button.
Startup and warm up—0 to 65 psig (0 to 4.5 bar)
Push OFF/ON/START switch to ON position to initialize
the controller. Once the Controller says “READY” on the
display, press OFF/ON/START switch to the START posi-
tion. In the START position, the start/run solenoid valve is
de-energized and the inlet valve is held closed by pres-
sure built up in the receiver tank. Air pressure is con-
tained in the receiver tank by the minimum pressure
valve which has a set point of 65 psig (4.5 bar). After
engine has warmed up the machine automatically trans-
fers to “READY FOR AIR” mode.
Running mode - 80 to 150 psig (5.5 to 12.4 bar)
With the controller in “READY FOR AIR” mode, com-
pressor is now ready for use by pressing and holding the
LOAD button for one second and opening the service
valve. The machine is now in the “AIR AVAILABLE”
mode where the start/run valve is energized allowing the
inlet valve to open and the engine speed to increase to
high idle (1800 rpm). As air demand decreases, service
pressure and control pressure will rise. This is accompa-
nied by a corresponding decrease in engine speed along
with closing of the inlet valve. Ultimately, the compressor
will unload and remain at low idle (1400 rpm) until an
increase in air demand.
Shutdown
When the OFF/ON/START switch is set to OFF position,
the start/run valve is de-energized closing the inlet valve
and opening the blowdown valve. The controller will dis-
play “STOP INITIATED” and the machine enters a
cooldown period and the time remaining for cooldown will
be displayed. After completion of the cooldown period,
the engine will stop and the controller will remain pow-
ered and display “MONITORING PRESSURES”. Once
system pressures are less than 10 psig, the controller will
be powered off.
2.7 Air inlet system, functional
description
The inlet system consists of two air filters, a compressor
air inlet valve and interconnecting piping to the engine
and compressor. Also, nylon tubing and air filter restric-
tion indicator gauges are provided.
The air filters are a 2-stage unit with a safety element dry
element-type filter. This filter is capable of cleaning
extremely dirty air. However, in such cases, frequent
checks of the air filter will be required. The compressor is
equipped with restriction switches on both the engine and
compressor inlet filters. When the set point is exceeded,
the controller will display a message indicating it is time
to replace the elements. At this time, change the air filter
element. Refer to Section 7.2: Daily operation and main-
tenance on page 61.
The compressor air inlet valve controls the amount of air
intake of the compressor in response to the air demand.
2.8 Engine control module,
functional description
Diagnostic fault codes are provided to indicate an electri-
cal or electronic problem has been detected by the ECM
(Engine Control Module). In some cases, the engine per-
formance can be affected when the condition causing the
code exists. More frequently, however, the operator can-
not detect any difference in the engine performance.
The controller indicates an engine performance problem
has occurred whenever the engine warning lamp is flash-
ing. The diagnostic code may indicate the cause of the
problem, and should be corrected.
If the controller does not indicate a problem with the
engine performance, but a diagnostic code is logged by
the ECM, an abnormal condition was detected that did
not affect performance.
If there is an error the controller will display the Failure
Mode Indicator (FMI) and Suspect Parameter Number
WARNING
Do not remove caps, plugs, and/or other com-
ponents when compressor is running or pressur-
ized. Stop compressor and relieve all internal
pressure before doing so.
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