TABLE OF CONTENTS
Section
Page
Section 01 - Safety Information
1.10 Caution: to prevent injury ................................................................................ 4
1.20 Caution: to reduce risk of electrical shock ....................................................... 4
1.30 Warning: to reduce risk of electrocution .......................................................... 5
1.40 Warning: to reduce risk of explosion or fi re ..................................................... 5
Section 02 - Installation
2.10 Environmental conditions ............................................................................... 6
2.11 Introduction ..................................................................................................... 6
2.12 Unpacking ...................................................................................................... 6
2.13 Pump mounting ............................................................................................... 6
2.14 Pump location ................................................................................................ 6
2.15 Discharge provisions ..................................................................................... 7
2.16 Electrical power .............................................................................................. 8
2.17 Advanced Vapor Management (AVM) ............................................................. 8
2.18 Traps ............................................................................................................... 8
2.19 The care of a liquid trap .................................................................................. 9
2.20 The care of a cold trap ................................................................................... 9
Section 03 - Operation
3.10 Starting a Welch DRY Vacuum Pump ............................................................. 10
3.11 Cleanliness ..................................................................................................... 10
3.12 Leak detection ................................................................................................ 10
3.13 Operating pressure range ............................................................................... 10
3.14 The effects of unwanted vapor ....................................................................... 10
3.15 Shutdown procedure ....................................................................................... 10
Section 04 - Maintenance
4.10 General maintenance ..................................................................................... 11
4.11 Diaphragm removal ......................................................................................... 11
4.12 Installation of new diaphragm ......................................................................... 11
Section 05 - Application
5.10 Operation as a replacement for aspirators ..................................................... 12
5.20 Cross reference Welch DRY Pump to Water Aspirator ................................... 12
Section 06 - Specifi cations
6.10 Specifi cation Chart ........................................................................................... 13
Section 07 - Specifi cations
Warranty ................................................................................................................. 14
Section 08 - Drawings
8.10 Dimensional drawing ...................................................................................... 15
8.20 Exploded view and kit for 2034, 2037 & 2044 ................................................ 16
8.30 Exploded view and kit for 2014, 2032, 2042 & 2047 ...................................... 17
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