User guide

- 2 -
Screw vacuum pumps
Table of contents: Page:
1. Introduction 3
2. Application 3
3. General Construction 4
3.1 General 4
3.2 Construction 4
3.3 Technical specifications 4
3.4 Cooling system 5
3.4.1 Fresh water cooling 5
3.4.2 Circulation Cooling 5
3.4.3 Cooling gas 5
3.5 Gases 5
3.5.1 Sealing gas 5
3.5.2 Cleaning gas 5
3.6 Bleeding valve 5
4. Handling procedure 6
4.1 Assembly of piping 6
4.1.1 Location 6
4.1.2 Foundation 6
4.1.3 Installation 6
4.2 Piping work 6
4.2.1 Main piping 6
4.2.2 Cooling water piping 6
4.3 Coupling drive 6
4.4 Preparation for operation 6
4.5 Operation 6
4.6 Stopping 6
4.7 Lubrication 6
5. Maintenance and inspection 7
5.1 General 7
5.2 Periodical inspection 7
5.3 Disassembly 8
5.3.1 Cautions in disassembly 8
5.3.2 Disassembling procedure 8
5.4 Re-assembly 8
5.4.1 Cautions in re-assembly 8
5.4.2 Re-assembling procedure 9
6. Trouble shooting 10
Data sheets:
D831/1 ➝ VSB (30), (20)
Spare parts list:
E831/1 ➝ VSB (01)