GE H301 Series, Operating Manual

Page: 75 / 137

H301/302 HSR Compressors | Rev. 2.2 | 65
Stop the Compressor
General compressor shutdown guidelines are listed below:
1. Reduce the engine speed.
To prevent overload shutdown, in some applications, may
require reduction of the inlet pressure.
Complies with ANSI Z535, ISO 3864, OSHA 1910.145 (f) (9)
2. Unload the compressor:
a. Open the bypass valve and run the compressor in an unloaded/minimized
load condition for a few minutes to cool down the package.
b. Close the suction valve.
c. Close the side stream valve (if equipped).
d. Close the discharge valve.
e. Stop the compressor.
3. Open the gas-piping vent and blow down the gas pressure.
If maintenance requires, open all gas lines or compressor
cylinders, vent all pressure to atmosphere before removing
any valve covers or loosening any gas connections.
Complies with ANSI Z535, ISO 3864, OSHA 1910.145 (f) (9)
4. Perform the lock-out/tag-out to isolate potential energy sources before
performing any maintenance activities.