Milton Roy GM0090 User Manual

Series G Model “M” Pump
Instruction Manual
GM.MR.ENG.339-0080-000.04/2020

Milton Roy GM0090 Specifications

General

Max Flow Rate	2.3 GPH
Flow Rate	Adjustable
Pressure	Adjustable
Power Supply	115 VAC
Materials	PTFE
Connection Size	1/4" NPT

Summary

Section 1 Description

1.1 General Information

Overview of the Series G Model M reciprocating chemical dosing pump's features and capabilities.

1.2 Principles of Operation

Explains the drive assembly's eccentric mechanism and the diaphragm liquid end's operation.

1.3 General Specifications

Details flow rate, pressure, accuracy, lubrication, and operating temperature limits.

Section 2 Installation

2.1 Unpacking and Storage

Procedures for receiving, inspecting, and storing the pump to prevent damage.

2.3 Safety Precautions

Critical safety guidelines for installation, operation, and maintenance of the pump.

2.4 Mounting and Drip Collection

Proper pump placement and containment measures for potential leaks.

2.6 Installation and Piping

Guidance on general installation, NPSH, suction, and discharge piping.

2.7 Valves

Details on back pressure, pulsation dampeners, safety, priming, and shut-off valves.

2.8 Electrical Connections

Instructions for safe and correct electrical hookup, including motor rotation.

Section 3 Operation

3.1 Start-Up Procedures and Checks

Steps to ensure the pump is ready for operation, including oil checks and valve settings.

3.2 Motor Electrical Connection Check

Procedure to verify correct motor rotation direction before starting the pump.

3.3 Start-Up

Steps for safely starting the pump and confirming initial operation and priming.

3.4 Capacity Calibration

Methods for testing and calibrating pump output under specific operating conditions.

Section 4 Maintenance

4.1 Preventative Maintenance

Recommended maintenance schedules for drive, diaphragm, oil seal bellows, and check valves.

4.2 Pump Return and Routine Checks

Procedures for returning pumps for repair and daily/weekly maintenance checks.

4.4 Spare Parts

List of recommended spare parts and information required for ordering.

4.5 Corrective Maintenance

Procedures for troubleshooting and repairing issues like fouled check valves and component replacements.

4.6 Diaphragm and Oil Seal Bellows Replacement

Step-by-step guide for replacing diaphragm and oil seal bellows in the liquid end.

4.7 Oil Seal Bellows Replacement

Instructions for replacing the oil seal bellows, recommending replacement with the diaphragm assembly.

4.8 Restarting the Pump

Steps to safely restart the pump after maintenance or service.

Section 5 Parts List

5.1 Parts List for GM Drive Side View

Detailed list of parts for the drive side view of the pump.

5.2 Parts List for GM Drive End View

Detailed list of parts for the drive end view of the pump.

5.3 Parts List GM0002-GM0010 PVC, PVDF & Mixed Liquid End

Parts for GM0002-GM0010 PVC, PVDF & Mixed Liquid End with Tubing Connection.

5.5 Parts List GM0002-GM0010 PVC Liquid End Threaded

Parts for GM0002-GM0010 PVC Liquid End with Threaded Connection.

5.8 Parts List GM0025-GM0050 PVC, PVDF & Mixed Liquid End

Parts for GM0025-GM0050 PVC, PVDF & Mixed Liquid End with Tubing Connection.

5.11 Parts List GM0025-GM0050 Stainless Steel & Slurry Liquid End

Parts for GM0025-GM0050 Stainless Steel & Slurry Liquid End with Threaded Connection.

5.13 Parts List GM0090-GM0500 PVC & Mixed Liquid End

Parts for GM0090-GM0500 PVC & Mixed Liquid End.

5.17 Parts List for Double Diaphragm Assembly

Common parts list for Double Diaphragm Assembly across various models.