Instruction manual

Oct 04 Issue H
GV Dry Vacuum Pumps
PAGE
iii
iii
ILLUSTRATIONS
Figure Page
1 The GV pump 3
2 Pump dimensions 8
3 Schematic diagram of the recommended
electrical connections 12
4 Electrical connections: 380/400/415 V, 50 Hz
electrical supplies 13
5 Electrical connections: 230/460 V, 60 Hz
electrical supplies 14
6 Connect to the thermal snap-switches 17
7 Exploded view of the gas-ballast assembly 21
8 Exploded view of the gas-ballast air filter 28
9 Exploded view of the interstage relief valve 29
10 Oil-level sight-glass and oil filler and drain ports 31
11 Relubricate the high vacuum bearings 33
12 Exploded view of the pump-motor, coupling
drive and coupling housing 37
TABLES
Table Page
1 Operating and storage conditions 5
2Performance data 5
3Mechanical data 5
4 Electrical data 6
5 Cooling system data 6
6 Lubrication data 7
7 Shaft-seals purge system data 7
8 Connections data 7
9Noise data 7
10 Checklist of items 10
11 Maintenance plan 26
12 Recommended frequencies for high-vacuum
bearing relubrication 32
13 Motor relubrication grease required 39
14 Motor bearing relubrication intervals 39
15 Fault finding 41
16 Spares Item Numbers 47
17 Accessory Item Numbers 47