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Gardner Denver
Air Compressor
L07
Gardner Denver L07 User Manual
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Original Operating and Service Manual
Screw Air Compressor
L07 - L11, L07RS - L11RS
V2
GB CDN USA
Id. no. CC1140579 / 00 - Mar
ch 2015
2
Table of Contents
1 Foreword
5
Notes on the Compressor
5
Intended Use
5
Maintenance
5
Notes
5
2 Table of Contents
7
3 Safety Regulations
9
Identification of Safety Guidelines
9
General Safety Instructions
9
Changes and Modifications to the Machine
10
Installation and Normal Operation
10
Special Work/Maintenance
12
Warning of Special Dangers
14
Storage of Compressors
15
Symbols and Explanations
16
4 Design and Functioning
20
Design of the Unit
20
Design of the Unit - L07-L11 (RS)
20
Schematic Diagram
21
Oil Circuit
22
Air Circuit
22
System Control
22
System Control L07-L11
22
System Control L07RS-L11RS
23
Hood (Opening/Closing)
24
5 Transport and Installation
25
Transport
25
Installation
26
6 Preparations for Commissioning
27
Cooling Air Volume/Minimum Cross
27
Compressed Air Connection
28
Electrical Connection
29
Electrical Connection (USA/CANADA-Version Only)
29
Electric Motor Fasteners for Secure Transportation
30
Oil Level Check
31
Sound Pressure Level
32
7 Commissioning
33
First Commissioning
33
Routine Commissioning
34
Commissioning after Malfunction
34
8 Control System
35
General
35
Keys
35
Status Indicator (Display / Light Signals)
35
Displaying / Changing Values
36
Selecting Values
36
Changing Values
36
Default Settings
36
Selecting Language
36
Setting Network Pressure (Apart from L07RS-L11RS)
36
Setting Line Pressure (Only L07RS-L11RS)
37
Setting Time/Date (Timer)
37
Starting the Unit
37
Switching off the Unit
37
Emergency off Button
37
Acknowledging Warning / Fault Messages
38
Warning Messages
38
Fault Messages
38
Menu Structure (Apart from L07RS-L11RS) (Values Are Examples)
39
Menu Structure (Only L07RS-L11RS) (Values Are Examples)
40
9 Service and Maintenance
41
Maintenance Recommendations
41
Maintenance Electric Motor
41
Maintenance and Inspection Schedule
41
Oil Change
44
Change of Oil Filter Cartridge
45
Change of the Fine Separator Cartridge
46
Change of Air Intake Filter
46
Safety Valve
47
Changing V-Belts/Automatic Tensioning System
48
Connecting Terminals in the Switch Cabinet/Control Transformer Setting
48
Fittings
48
General Maintenance and Cleaning
49
Clean / Change Cooling Air Filter Mat
49
Inspection Intervals for Pressure Vessels and Electrical Installations
50
Maintenance Information and Lubricant Recommendations for Stationary Compressors
50
10 Trouble-Shooting
51
11 Annex
53
Technical Data Usa/Canada Version L07-L11 60 Hz
53
Technical Data Usa/Canada Version L07RS
54
Technical Data Usa/Canada Version L11RS
55
Layout Plan L07-L11 and L07RS-L11RS
56
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Gardner Denver L07 Specifications
General
Model
L07
Power
7.5 kW
Voltage
400 V
Motor power
7.5 kW
Type
Rotary Screw Compressor
Max Pressure
8 bar
Pressure
8 bar
Phase
3
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