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Air Compressor
QGB 20
Quincy QGB 20 User Manual
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QGB Series
(20-60 HP)
Belt Drive Air Compr
essors
Instruction M
anual
This
manual
contains
important
safet
y
information
and
should
be
made
available
to
all
personnel
who operate
and/or
maintain
this pr
oduct.
Carefully
read
this
manual
before attempting to operate or perform maintenance on this equipment.
Manual No. 65089-1B
May 2006 Edition
Latest Update: October 2007
2
Table of Contents
Default Chapter
3
Table of Contents
3
Section I - General Information
5
Safety Alert Symbols
5
Safety Precautions
6
Spare Parts Ordering Information
7
Serial/Model Identification Plate
7
Royal Blue Warranty
8
Section II - Description General Description
10
The Compression Cycle
10
Air Flow
11
Cooling System
11
Moisture Separator
11
Capacity Control System
12
Electrical System
13
Section III - Installation
14
Receiving
14
Moving the Unit to the Installation Site
14
Location
15
Transit Lock
16
Piping Connections
16
Pressure Vessels
16
Relief Valves
17
Electrical
17
Pneumatic Circuit Breakers or Velocity Fuses
18
Guards
18
Manual Vent and Shutoff Valve
18
Compressor Rotation
19
Fan Rotation
19
Section IV - Operating Procedures
20
Prior to Starting
20
Starting the Compressor
21
Stopping the Compressor
21
HMI Control Panel Operation
22
Section V - Integrated Dryer (Option) General Information
28
Inspection
28
Safety
28
Installation
29
Start-Up & Operation
30
Maintenance
31
Automatic Drains
32
Troubleshooting
34
Section VI - Servicing
36
Preparing for Maintenance or Service
36
Safety
36
Maintenance Schedule
37
Water Removal
38
Air/Fluid Separator Elements
38
Air Filter
39
Shaft Seal
40
Differential Pilot Valve
42
Pressure Setting
42
V-Belt Drive Maintenance
43
Belt Replacement
47
Belt Tensioning Values
48
Electronic Control
54
Air and Fluid Tubing
54
Section VII - Compressor Fluids
56
Fluid Specifications
56
Lubrication
57
Fluid Level
57
Fluid Filter
58
Factors Affecting Fluid Life
58
Fluid Analysis Program - General
59
Quinsyn PG
60
Quinsyn XP
61
Quinsyn Plus
62
Quinsyn Fluids
63
Quinsyn Flush
64
Converting to Quinsyn PG
66
Converting to Quinsyn XP
67
Converting to Quinsyn Plus
67
Converting to Quinsyn
68
Sampling Procedures
69
Understanding the Analysis Report
71
Fluid Parameters
72
Section VIII - Troubleshooting
74
Troubleshooting
74
Section VIII - Troubleshooting
75
Section VIII - Troubleshooting
76
Section VIII - Troubleshooting
77
Section VIII - Troubleshooting
78
Section VIII - Troubleshooting
79
Section VIII - Troubleshooting
80
Section VIII - Troubleshooting
81
Section VIII - Troubleshooting
82
Section VIII - Troubleshooting
83
Section VIII - Troubleshooting
84
Section VIII - Troubleshooting
86
Troubleshooting
87
Appendix A - Dimensional Drawings
88
Qgb 20/25/30
88
Qgb 40/50/60
89
Appendix B - Technical Data
90
QGB 20 Thru QGB 60
90
5
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Quincy QGB 20 Specifications
General
Horsepower
5 HP
Power Source
Electric
Number of Stages
2
Max Pressure
175 PSI
Belt Driven
Yes
Voltage
230V
Phase
Single Phase
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