Edwards nXDS Series User Manual

A735-01-880 Issue C
Page ii © Edwards Limited 2017. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Contents
5 Maintenance...................................................................................... 29
5.1 Safety information...................................................................................................... 29
5.2 Maintenance plan....................................................................................................... 30
5.3 Inspect and clean the inlet strainer ................................................................................. 30
5.4 Clean the external fan cover ......................................................................................... 30
5.5 Check the pump performance (service indicator)................................................................. 30
5.6 Replace the tip-seals................................................................................................... 31
5.7 Replace the pump bearings (service indicator).................................................................... 31
5.8 Replace the pump controller (service indicator) .................................................................. 31
5.9 Electrical safety check................................................................................................. 31
5.10 Service indicator codes................................................................................................ 32
5.11 Fault finding............................................................................................................. 32
5.11.1 The pump has failed to start or has stopped....................................................................... 32
5.11.2 The pump has failed to achieve the required performance ..................................................... 32
5.11.3 The pump has poor ultimate vacuum................................................................................ 33
5.11.4 The pump is noisy ...................................................................................................... 33
5.11.5 The pump surface temperature is high ............................................................................. 33
5.11.6 Alarm indicator codes.................................................................................................. 34
6 Storage and disposal ............................................................................ 37
6.1 Storage ................................................................................................................... 37
6.2 Disposal .................................................................................................................. 37
7 Spares and accessories ......................................................................... 39
7.1 Introduction ............................................................................................................. 39
7.2 Accessories .............................................................................................................. 40
7.2.1 Silencer................................................................................................................... 41
7.2.2 Gas ballast adaptor..................................................................................................... 41
7.2.3 Gas ballast adaptor blank ............................................................................................. 41
7.2.4 Vibration isolators...................................................................................................... 41
7.2.5 Inlet/exhaust filter..................................................................................................... 41
7.2.6 Exhaust nozzle .......................................................................................................... 42
7.2.7 Chemical resistance conversion kit.................................................................................. 42
7.2.8 Electrical cables ........................................................................................................ 42
7.2.9 Pump-to-controller cable ............................................................................................. 42
7.3 Spares .................................................................................................................... 43
7.3.1 Tip-seal kit (Youtube video https://www.youtube.com/watch?v=vKnh9dxOyhE) ........................... 43
7.3.2 Cooling fan............................................................................................................... 43
7.3.3 Gas ballast knob ........................................................................................................ 43
7.3.4 Silencer spares kit...................................................................................................... 43
7.3.5 Inlet/exhaust filter spares ............................................................................................ 43
7.3.6 Bearing replacement kit (not field serviceable)................................................................... 44
7.3.7 Exhaust and ballast valve kit ......................................................................................... 44
For return of equipment, complete the HS Forms at the end of this manual.

Edwards nXDS Series Specifications

General

Brand	Edwards
Model	nXDS Series
Category	Water Pump
Language	English