Milton Roy GM Series User Manual

I
TABLE OF CONTENTS
SECTION 1 DESCRIPTION
………………………………………………………………………………....................1
1.1 GENERAL INFORMATION………………………………………………………………………….....................1
1.2 PRINCIPLES OF OPERATION…………………………………………………………………………………....2
1.3 GENERAL SPECFICATIONS………………………………….…………………………………………….........3
SECTION 2 INSTALLATION
…………………………………………………………………………………………....4
2.1 UNPACKING………………………………………………………………………………………………………...4
2.2 STORAGE…………………………………………………………………………………………………………...4
2.3 SAFETY PRECAUTIONS……………………………………………………………………………………….....5
2.4 MOUNTING…………………………………………………………………………………………………….…....6
2.5 DRIP COLLECTION…………………………………………………………………………………………….…..6
2.6 INSTALLATION……………………………………………………………………………………………….…..…6
2.6.1 NPSH CONSIDERATIONS……………………………………………………………………………...…..8
2.6.2 GENERAL PIPING CONSIDERATION……………………………………………………………….…....8
2.6.3 SUCTION PIPING CONSIDERATION……………………………………………………………..………9
2.6.4 DISCHARGE PIPING CONSIDERATION……………………………………………………...…...……..9
2.7 VALVES……………………………………………………………………………………………………..……...10
2.8 ELECTRICAL CONNECTIONS………………………………………………………………………………….10
SECTION 3 OPERATION
……………………………………………………………………………………………....11
3.1 START-UP PROCEDURES AND CHECKS……………………………………………………………...……..11
3.2 CHECKING THE ELECTRICAL CONNECTION OF THE MOTOR…………………………………..……...11
3.3 START-UP……………………………………………………………………………………………………..…...11
3.4 CAPACITY CALIBRATION………………………………………………………………………………..……...12
SECTION 4 MAINTENANCE
……………………………………………………………………………………...…..13
4.1 PREVENTATIVE MAINTENANCE………………………………………………………………………..……..13
4.2 RETURNING PUMPS TO THE FACTORY FOR REPAIR………………………………………….……..…..13
4.3 ROUTINE MAINTENANCE………………………………………………………………………………….…...13
4.4 SPARE PARTS………………………………………………………………………………………………..…...14
4.4.1 GM0002~GM0050 Liquid End - PVC and PVDF………………………………………………………..14
4.4.2 GM0002~GM0050 Liquid End - Stainless Steel…………………………………….........................…14
4.4.3 GM0090~GM0500 Liquid End - PVC and PVDF………………………………………………………..15
4.4.4 GM0090~GM0500 Liquid End - Stainless Steel…………………………………………………………15
4.5 CORRECTIVE MAINTENANCE…………………………………………………………………………………15
4.5.1 Check Valve Replacement: Liquid End GM0002~GM0050 - PVC & PVDF………………………….16
4.5.2 Check Valve Replacement: Liquid End GM0002~GM0050 –Stainless Steel…………………….…..17
4.5.3 Replacement of Ball, Seat & Seal: Liquid End GM0090~GM0500 - PVC & PVDF………………….17
4.5.4 Check Valve Replacement: Liquid End GM0090~GM0500 - Stainless Steel………………………..18
4.6 DIAPHRAGM AND OIL SEAL BELLOWS REPLACEMENT………………………………………….………19
4.6.1 Diaphragm Replacement: Liquid End Size GM0002~GM0050………………………………………..19
4.6.2 Diaphragm Replacement: Liquid End Size GM0090~GM0500………………………………………..20
4.7 OIL SEAL BELLOWS REPLACEMENT………………………………………………………………….……..21
4.8 RESTARTING THE PUMP……………………………………………………………………………….………21

Milton Roy GM Series Specifications

General

Brand	Milton Roy
Model	GM Series
Category	Water Pump
Language	English