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Quincy Compressor QMA 75 User Manual

Quincy Compressor QMA 75
69 pages
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Instruction Manual for
QMA SERIES COMPRESSORS
,
CAUTION
Air compressors are complicated and can cause
serious injury or death if operated improperly.
Before installing or operating this compressor, read
and understand this manual, and follow all safety precautions!!
I
Part #: 50063-103
Date of Issue: March 1997

Table of Contents

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Quincy Compressor QMA 75 Specifications

General IconGeneral
ModelQMA 75
Horsepower75 HP
Voltage460V
Phase3
Max Pressure175 PSI
Maximum Pressure175 PSI
Cooling MethodAir Cooled

Summary

General Information and Safety

Safety Precautions

Essential safety advice for compressor operation and handling.

Section III - Installation Guidelines

Comprehensive guide for compressor installation procedures.

Standard Warranty Policy

Technical Data and Specifications

Key Technical and Cooling Data

Performance specs, cooling data, fluid capacity, sound, and dimensions.

Dimensional Drawings

Unit Dimension Diagrams

Visual representations of unit dimensions for various QMA models.

Section I - General Safety Precautions

General Safety Warnings and Procedures

Comprehensive safety rules for operation and maintenance.

Section II - Description of Compressor Systems

Compressor Operation and Safety Systems

High Air Temperature Safety Switch

Function and importance of the HAT switch for over-temperature protection.

Section III - Installation Procedures

Pre-Operation Checks: Air, Fluid, Rotation

Section IV - Operating Procedures

Pre-Start Checklist and Compressor Start-up

Steps before starting and procedures for starting the compressor.

Compressor Stopping Procedures

Methods for normal and emergency shutdown of the compressor.

Section V - Preparing for Maintenance or Service

Safety Procedures for Maintenance

Critical safety steps to ensure safe maintenance operations.

Section VI - Servicing and Lubrication

General Servicing Safety and Procedures

Important safety guidelines and general procedures for servicing.

Lubrication and Cooling Fluid Management

Information on fluid types, levels, and maintenance recommendations.

Fluid Specifications and Filter Maintenance

Air/Fluid Separator Element Service

Seal Replacement Procedures

Section VII - Service Adjustments

Adjusting Pilot Valve, Pressure Switch, and Temp Valve

Procedures for adjusting key control components for proper operation.

Section VII - Troubleshooting

Failure to Start and Unscheduled Shutdowns

Common causes and corrective actions for start-up issues and shutdowns.

Troubleshooting: Overloads, Air Delivery, Receiver Pressure

Troubleshooting: Reservoir Pressure and High Discharge Temperature

Troubleshooting: Fluid Consumption and Separator Clogging

Troubleshooting: Fluid Leaks and Air Cleaner Issues

Troubleshooting: Inlet Valve and Load/Unload Operation

Troubleshooting: Control System and Air Quality Issues

Troubleshooting: Pressure Relief Valve Activation

Causes of Pressure Relief Valve Blows

Identifying reasons why the pressure relief valve may be activating.

Section IX - Maintenance Schedule

Periodic Maintenance Tasks

Routine checks and tasks performed daily, weekly, and monthly.

Scheduled Maintenance Intervals

Maintenance actions required at 1000, 2000 hours, yearly, and 2-year intervals.

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