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 (e) Compressor turns freely by hand.
(f) Direction of motor rotation is correct.
(g) Unloader operation has been checked.
(h) Safety valve operation has been checked.
2.2 Startup.
Proceed as follows:
(a) Open discharge shutoff valve.
(b) Turn on cooling water supply. Thoroughly vent jackets and
intercooler.
(c) Set regulating device to unloaded position.
(d) Start motor and bring unit up to speed.
(e) Check and adjust lubricator feed rate in accordance with
manufacturer's instructions.
(f) Load the compressor if machine is running smoothly.
3 NORMAL OPERATION. While the system is operating, perform the following
tasks.
(a) Maintain proper lubricating oil levels.
(b) Drain oil separator and receiver.
(c) Check automatic traps for proper operation.
(d) Check compressed air and cooling water pressures and temperatures
daily.
4 SHUTDOWN. Proceed as follows:
(a) Unload compressor.
(b) Stop motor.
(c) Shut off cooling water supply.
(d) If the compressor is to be subjected to freezing temperatures,
thoroughly drain cylinder jackets, coolers, and drain traps.
4.1 Extended Shutdown. Rotary sliding vane compressors should not be left
idle for long periods of time. Rust and corrosion will cause rapid
deterioration if the machine is not properly protected. Rotor blade
expansion, caused by the absorption of moisture, is another potential
problem. Observation of the following procedure should adequately provide the
proper protection.
2-15
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