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Edwards GV Series User Manual
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© Edwards Limited 20
12. All
rights reserved.
Page 35
Edwards and th
e Edwards lo
go are tradem
arks of Ed
wards Limite
d.
Maintenance
A705-61-880 Iss
ue M
Figure 9 - Relubricate th
e high vacuum bearings
1.
Drive r
otor shaf
t
2.
Bearings
3.
Bearing cap ‘O’ ring
4.
Drive sh
aft bearing ca
p
5.
Bolt
6.
Driven sh
aft bearin
g cap
7.
Correct direction of rotation
8.
Bearin
g carrier bolt
40
42
Table of Contents
Default Chapter
2
Declaration of Conformity
2
Table of Contents
3
Introduction
7
Scope and Definitions
7
The GV Pumps
7
The GV Pump
7
Gas System
9
Cooling System
9
Interstage Relief Valve
9
Drive Operation
9
Liquid Pumping Capability
10
Safe Area Operation
10
Accessories
10
Technical Data
11
Operating and Storage Conditions
11
Performance
11
Mechanical Data
12
Electrical Data (for Edwards Supplied Motors)
13
Cooling System
13
Lubrication Data
14
Shaft-Seals Purge System
14
Connections
14
Noise Data
14
Pump Dimensions
15
Installation
17
Safety
17
System Design
17
Unpack and Inspect
18
Locate the Pump
19
Check the Gearbox Oil-Level
19
Electrical Connections
19
Introduction
19
Connect the Electrical Supply to the Pump-Motor
20
Schematic Diagram of the Recommended Electrical Connections
21
Connect the Thermistor Outputs
22
Connect to the Thermal Snap-Switches
22
Check the Direction of Rotation
23
Fit a Mechanical Booster Pump (Optional)
24
Connect the Cooling-Water Supply
25
Connect the Shaft-Seals Purge and Gas-Ballast Gas Supplies
25
Introduction
25
Connect the Shaft-Seals Purge Air or Nitrogen Supply
26
Connect a Nitrogen Gas-Ballast Supply (Optional)
26
Connect the Pump-Inlet
27
Connect the Pump Outlet
27
Leak Test the System
28
Commission the Pump
28
Exploded View of the Gas-Ballast Assembly
29
Operation
31
Start the Pump
31
Allow the Pump to Warm up
31
Check the Purge Pressures and Flows
32
Shut down the Pump
32
Maintenance
33
Safety Information
33
Maintenance Plan
33
Check the Gearbox Oil-Level and Fill the Gearbox with Oil (if Necessary)
34
Inspect the Gas Ballast System
35
Inspect the Pipelines and Connections
35
Inspect the Interstage Relief Valve and Replace the Hinge Bushes, Valve Flap and Valve 'O' Ring
36
(If Necessary)
36
Exploded View of the Gas-Ballast Air Filter
36
Exploded View of the Interstage Relief Valve
37
Change the Gearbox Oil and Clean the Oil-Level Sight-Glasses
38
Relubricate the High-Vacuum Bearings
39
Relubricate the High Vacuum Bearings
39
Oil-Level Sight-Glass and Oil Filler and Drain Ports
40
Flush the Cooling Jacket
42
Replace the Interstage Relief Valve
42
Replace the Pump-Motor
43
Remove the Pump-Motor
43
Fit the New Pump-Motor
44
Exploded View of the Pump-Motor, Coupling Drive and Coupling Housing
46
Replace the Coupling Insert
47
Relubricate the Motor Bearings
47
General Requirements
47
Relubrication Intervals
48
Replace the Motor Bearings
48
Overhaul the Pump
48
Fault Finding
49
Storage and Disposal
51
Storage
51
Disposal
51
Spares, Service and Accessories
53
Introduction
53
Service
53
Spares and Maintenance Kits
53
Accessories
53
Exhaust Silencers
53
Exhaust-Purge Kit
53
Booster Connection Kits
53
Indirect Cooling Kits
54
Other Accessories
54
Index
55
4
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Edwards GV Series Specifications
General
Brand
Edwards
Model
GV Series
Category
Water Pump
Language
English
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