30
5-5 Regulator
The compressor has been correctly adjusted prior to shipment from the factory, and rarely
requires further adjustment, if ever. Should it require any adjustment, however, as a result
of overhauling or other cause, follow the following procedures:
(1) Prior to starting the engine, check whether or not the engine governor lever is set to
the high-speed stopper. Otherwise, the engine will not turn at the maximum speed
during full-load operation.
(2) Start the engine only after confirming that the unloader valve is set to the "START"
position. Should the engine stop running immediately after starting, restart it only after
confirming that the delivery air pressure gauge reads zero.
(3) Engine start automatically follows for a few minutes. When the engine is sufficiently
warmed, set the unloader valve to the Run position. Then the engine runs at a no-load
condition at an idle speed.
(4) Gradually close the air outlet valve from the Full open position, Adjust the screw on
the pressure regulating valve so that the governor lever shifts to the low-speed side
as soon as the air pressure exceeds operating pressure.
(5) Repeat opening and closing the service valve and confirm that the regulators work
smoothly.
Summary of Contents for DIS-390ES
Page 58: ...55 10 2 Outline drawing DIS 390ES...
Page 59: ...56 DIS 390ES trailer type...
Page 60: ...57 DIS 390ES C...
Page 61: ...58 DIS 390ES C trailer type...
Page 62: ...59 DIS 390ES D...
Page 63: ...60 DIS 390ES D trailer type...
Page 64: ...61 10 3 Combined Piping Diagram DIS 390ES...
Page 65: ...62 DIS 390ES C...
Page 66: ...63 DIS 390ES D...
Page 67: ...64 10 4 Engine wiring diagram...