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General| Brand | Quincy Compressor |
|---|---|
| Model | QMA 50 |
| Category | Air Compressor |
| Language | English |
Details warranty periods for units, parts, and lists exclusions.
Explains DANGER, WARNING, and CAUTION symbols for hazard identification.
Explains how model numbers are structured based on features.
Lists essential safety rules for compressor operation and maintenance.
Details OSHA and FDA regulations for air used in breathing or food processing.
Instructions for ordering replacement parts and using genuine Quincy parts.
General description of the QMA series compressor unit and its construction.
Explains the continuous rotary compression process and its stages.
Describes how air enters, is compressed, and exits the system.
Details the circulation of fluid for lubrication, sealing, and cooling.
Explains the design and function of air-cooled fluid coolers.
Describes the shell and tube design of water-cooled fluid coolers.
Explains how aftercoolers reduce condensation in discharge air.
Details the function of the reservoir and separator element.
Explains how compressor output is regulated based on demand.
Details operation modes where the inlet valve is fully open or closed.
Piping schematic for QMA 50/50H/60 units with across the line starting.
Piping schematic for QMA 50/50H/60 units with Wye-Delta starting.
Piping schematic for QMA 75 units with across the line starting.
Piping schematic for QMA 75 units with Wye-Delta starting.
Piping schematic for QMA 100/125/150 units with across the line starting.
Piping schematic for QMA 100/125/150 units with Wye-Delta starting.
Explains automatic control based on external signals or local settings.
Describes how two compressors can operate in tandem based on demand.
Details operation modes where the inlet valve is fully open or closed.
Describes the unit's electrical system, voltage, and components.
Explains the function of the HAT switch for safety shutdown.
Describes the Main Power On light and High Air Temperature Light.
Explains the Hourmeter, Air Pressure, and other operational gauges.
Procedures for inspecting the compressor upon delivery for damage.
Guidelines for safely lifting and moving the compressor unit.
Specifies ideal conditions for compressor placement, ventilation, and temperature.
Recommendations for joining pipes, materials, and soldering techniques.
Advice on assembling piping to avoid strain and allow for expansion.
Importance of properly sized and installed pressure relief valves.
Guidelines for electrical supply, wiring, grounding, and codes.
Safety requirements for pneumatic safety devices in air lines.
Importance of machine guards and safety labels for hazard protection.
Proper installation and use of manual valves for system depressurization.
Requirements for water supply and sewer connections for water-cooled models.
Emphasizes keeping the manual accessible for operators.
States that coupling realignment is not necessary for QMA units.
Guidance on selecting and installing the air cleaner for optimal performance.
Instructions on monitoring and maintaining the correct fluid level.
Critical step to ensure correct rotation to prevent compressor damage.
A comprehensive list of checks before operating the compressor.
Steps for safely starting the compressor and initial monitoring.
Procedure for stopping the compressor during normal operation.
Method for immediate shutdown in emergency situations.
Critical safety steps before performing any maintenance work.
General safety procedures for personnel working on the compressor.
Information on fluid types, levels, and change intervals.
Recommended fluids, mixing precautions, and consequences of improper use.
Lists recommended Quincy compressor fluids and their properties.
Details replacement of the fluid filter based on hours or indicator.
Instructions for servicing the separator element, including warnings.
Explains the system returning fluid from the separator to the inlet valve.
Maintenance of the control line filter, including automatic drain function.
Information on the shaft seal as a wear item and its replacement.
Steps for removing the compressor shaft seal assembly.
Steps for preparing the shaft and adapter before installing a new seal.
Detailed steps for installing the new compressor shaft seal.
Instructions for installing SAE straight thread O-ring fittings.
How to adjust the pilot valve for pressure modulation.
Setting the pressure switch for compressor loading and unloading.
Adjustment of the valve to maintain discharge temperature.
Importance of water quality and maintenance for heat exchangers.
Common causes and corrections for the compressor not starting.
Reasons for unexpected shutdowns and their solutions.
Troubleshooting thermal overload issues and their causes.
Diagnosing and fixing issues with reduced air output.
Troubleshooting low pressure in the air receiver system.
Causes and solutions for excessively high pressure in the reservoir.
Identifying and resolving issues causing high discharge air temperature.
Troubleshooting reasons for high compressor fluid usage.
Diagnosing and resolving frequent clogging of the separator element.
Causes and solutions for the air cleaner becoming clogged frequently.
Troubleshooting fluid coming out through the blowdown valve.
Diagnosing and resolving frequent clogging of the fluid filter.
Troubleshooting inlet valve not opening or closing correctly.
Diagnosing why the compressor fails to unload when there's no air demand.
Troubleshooting why the compressor doesn't load when service line pressure drops.
Resolving issues where the compressor fails to time out or shut down when unloaded.
Addressing problems with the compressor cycling too frequently between states.
Troubleshooting high water content in the plant air distribution system.
Diagnosing and correcting causes of the pressure relief valve activating.
Routine checks and monitoring for normal compressor operation.
Weekly checks including fluid level, filter, leaks, and noise.
Monthly tasks like cleaning coolers and wiping down the unit.
Actions including fluid sampling, tightness checks, and filter changes.
Specific tasks like changing the fluid filter.
Tasks like changing the separator, air filter, and lubricating motors.
Replacing cooler hoses.
