II
Purpose of this Manual
The purpose of this manual is to provide the detailed information that the user needs to
know in order to correctly operate，service and inspect the volute pump．
This manual is intended for persons experienced in the operation of volute pumps，or for
persons who have received instruction from such experienced persons．Wiring and electrical work
must be performed by qualified persons only.
CONTENTS
（ページ）
Limit of Liability
························································ Ⅰ
Purpose of this Manual ····················································· Ⅱ
Contents ··································································· Ⅱ
１．Safety
1.1 Warnings ··························································· １-１
1.2 Safety instructions ··················································· １-１
1.2.1 Safety instructions for operation ······························· １-１
1.2.2 Safety instruction for installation，maintenance and inspection ··· １-２
1.3 Location of warning label ··········································· １-２
２.
Structure and overview of the pump
2.1 Names of parts ······················································ ２-１
2.2 Specifications ····················································· ２-２
３.
Installation
3.1 Befor using the pump ················································ ３-１
3.2 Instructions for installation ······································· ３-１
3.3 Installation procedure ·············································· ３-２
3.4 Cautions for piping work ············································ ３-４
3.5 Cautions for wiring work ············································ ３-５
４.
Preparation for operation
4.1 Checks prior to test operation ······································ ４-１
4.1.1 Electrical system checks ········································ ４-１
4.1.2 Pump system checks ··············································· ４-１
4.2 Test operation ····················································· ４-２
５.
Maintenance and inspection
5.1 Cautions for maintenance and inspection ····························· ５-１
5.2 Mechanical seal ····················································· ５-２
5.3 Double mechanical seal ·············································· ５-３
5.4 Gland packing ······················································ ５-３
5.5 Periodic inspection table ··········································· ５-３
６.
Troubleshooting
······················································ ６-１
Summary of Contents for SJ4S
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