Fluid Specifications

• Fluid Specifications • Lubrication • Fluid Level • Fluid Filter • Factors Affecting Fluid Life • Fluid Analysis Program - General • QuinSyn PG • QuinSyn XP • QuinSyn Plus • QuinSyn Fluids • QuinSyn Flush • Cleaning and Flushing With

QuinSyn Flush • Converting to QuinSyn PG • Converting to QuinSyn XP • Converting to QuinSyn Plus • Converting to QuinSyn • Sampling Procedures • Understanding the Analysis Report • Fluid Parameters

The three functions of compressor fluid are: • to lubricate the bearings and rotors

• to remove heat from the air as it is being compressed thus lowering the compressed air discharge temperature • to seal the rotor clearances

Fluid Specifications

We recommend that all Quincy rotary screw compressors be filled with one of the following synthetic fluids: QuinSyn Pg - Standard fill. QuinSyn XP - Standard fill for high pressure applications. QuinSyn Plus - Extended life fluid. QuinSyn F - Food grade applications. QuinSyn iV - 4000 hour alternative fluid. A fluid tag is attached to each Quincy rotary screw compressor indicating the type of fluid provided in the initial fill. All of the above fluids are available from any authorized Quincy distributor.

Caution!

Do not mix different grades or types of fluid. Do not use inferior grades of fluids.

notiCe!

Failure to follow these fluid recommendations will adversely affect your warranty.

Lubrication

Most Quincy Compressors are equipped with a positive displacement fluid pump mounted to the compressor and directly driven by one of the rotors. Fluid is circulated through the cooler, fluid filter, and into the compressor. In the compressor, fluid is diverted through internal passages to ensure positive lubrication of the bearings and shaft seal. The remainder of the fluid is injected at the beginning stage of the compression cycle to seal clearances and to cool and lubricate the rotors. Models not equipped with a fluid pump use pressure differential to circulate the fluid. Positive pressure maintained in the reservoir forces the fluid throughout the machine. Each Quincy compressor is filled at the factory with the correct amount of one of the synthetic fluid listed in the Fluid Specifications. Mineral oil can be requested and used in specific applications. The use of other brands or types of fluid may reduce the design life of the compressor or cause problems with filtration or carryover. Consult the Quincy Service Department before changing brands of fluid.

Fluid Level

Fluid level is monitored by a sightglass or a dial gauge while in operation. Fluid level should be in the “run” area on the dial gauge or completely fill the sight gauge. DO NOT OVERFILL.

Figure 1-1. Fluid Level Sight Gauges

Each unit comes equipped with a fluid level sight gauge, fluid fill opening, and a fluid drain in the reservoir. The fill plug is drilled to allow some pressure to escape before the plug is completely removed. Should you hear pressurized air venting through the hole, immediately screw the plug back into the reservoir. Relieve the pressure in the machine before proceeding.

Caution!

Hot fluid under pressure could cause death or serious injury. Do not remove the fluid fill plug and attempt to add fluid to the reservoir while the compressor is in operation or when the system is under pressure. Be sure that the compressor’s red mushroom stop button is pushed in and locked and that the main power disconnect switch is in the off position and locked out to assure that the compressor will not start automatically.