
5
Contents
Troubleshooting ............................................................................................. 83
Inspection ....................................................................................................... 85
Daily inspection .......................................................................................... 85
Periodic inspection ..................................................................................... 85
Wear part replacement .................................................................................. 86
Wear part list ............................................................................................... 86
Before replacement .....................................................................................87
Valve set replacement .................................................................................87
Discharge valve set dismantlement/assembly .......................................87
Suction valve set dismantlement/assembly .......................................... 89
Spacer set replacement (Auto degassing type) .................................... 90
Air vent valve set replacement (Auto degassing type) ...........................91
Diaphragm replacement ..............................................................................91
Exploded view ................................................................................................ 94
Pump head, Drive unit & Control unit ......................................................... 94
Pump head ................................................................................................. 95
EWN-[B09•B11•B16•B21•C16•C21] [VC•VH•VE•PC•PH•PE•TC] ......... 95
EWN-[B31•C31•C36] [VC•VH•VE•PC•PH•PE•TC] ............................... 96
EWN FC .................................................................................................97
EWN-C31 P6-V ..................................................................................... 98
EWN SH/SH-H/SH-H2 .......................................................................... 99
EWN with an Automatic air vent .......................................................... 100
Specifications/ Outer dimensions ..............................................................101
Specifications ............................................................................................101
Pump unit .............................................................................................101
Power cable ..........................................................................................103
Pump colour .........................................................................................103
Outer dimensions...................................................................................... 104