Forward - Liquiflo H Series Installation, Operation & Maintenance Manual

Liquiflo Installation, Operation & Maintenance Manual

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This manual provides instructions for the installation, operation and maintenance of the Liquiflo H-Series
and 3-Series Gear Pumps, Magnetically-Coupled (MC) Models H1F, H3F, H5R, H5F, H7N, H7R, H7F,
H9R & H9F; and 31F, 33F, 35R, 35F, 37R, 37F, 39R, 39F & 311F. It is critical for any user to read and
understand the information in this manual along with any documents this manual refers to prior to
installation and start-up.
Liquiflo shall not be liable for damage or delays caused by a failure to follow the instructions for
installation, operation and maintenance as outlined in this manual.
Thank you for purchasing a Liquiflo product.
LIQUIFLO STANDARD TERMS AND CONDITIONS APPLY UNLESS SPECIFIED IN
WRITING BY LIQUIFLO.
1. General Information
1.1 General Instructions . . . . . . . . . . . . . . . . . . . 3
1.2 Pump Specifications . . . . . . . . . . . . . . . . . . . 4-6
1.3 Model Coding . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Pump Installation. . . . . . . . . . . . . . . . . . . . . . 7
1.5 Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.6 Operation & Troubleshooting . . . . . . . . . . . . 7
1.7 Maintenance & Repair. . . . . . . . . . . . . . . . . . 7
1.8 Repair Kits & Replacement Parts . . . . . . . . . 7
1.9 Returned Goods Authorization (RGA) . . . . . 8
2. Safety Precautions
2.1 General Precautions . . . . . . . . . . . . . . . . . . . 9
2.2 Precautions for Magnetic-Drive Pumps . . . . 9
3. Pump & Motor Installation
3.1 Installation of Pump, Motor and Base. . . . . . 10
3.2 General Piping Requirements . . . . . . . . . . . . 10
3.3 Gear Pump Requirements . . . . . . . . . . . . . . . 11
3.4 General Motor Requirements . . . . . . . . . . . . 11-12
3.4.1 Motor Selection. . . . . . . . . . . . . . . . . . 11
3.4.2 Motor Hook-Up. . . . . . . . . . . . . . . . . . 12
3.4.3 Motor Direction. . . . . . . . . . . . . . . . . . 12
4. Start-Up & Operation
4.1 Precautions Prior to Starting Pump . . . . . . . . 13
4.2 Operating Requirements . . . . . . . . . . . . . . . . 13
4.3 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . 13
Detailed Table of Contents
5. Maintenance & Repair
Appendix:
A-1: Fastener Torque Specifications . . . . . . 31
A-2: Retaining Ring Tool Specifications. . . 32
A-3: Wear Allowances. . . . . . . . . . . . . . . . . 33-35
A-4: Pump Parts List . . . . . . . . . . . . . . . . . . 36
A-5: Gear-Shaft Assembly. . . . . . . . . . . . . . 37-41
A-6: Reference Drawings . . . . . . . . . . . . . . 42-45
A-7: Troubleshooting Guide . . . . . . . . . . . . 46-47
2
MAG-DRIVE Gear Pumps
Models H1-H9, 31-39 & 311 - MC
5.1 Work Safety . . . . . . . . . . . . . . . . . . 14
5.2 Removal from System . . . . . . . . . . 14
5.3 Pump Disassembly . . . . . . . . . . . . . 15-19
Cartridge Removal . . . . . . . . . . . . . 15
Gear-Shaft Disassembly . . . . . . . . . 17-18
Removal of Bearing Lock Pins. . . . 18
Removal of Bearings . . . . . . . . . . . 18
Removal of Outer Magnet . . . . . . . 19
5.4 Pump Assembly . . . . . . . . . . . . . . . 20-30
A: Pump Cartridge Assembly . . . . . . 20-27
Internal Bearing Flush Option . . . . 20
Installation of Bearings. . . . . . . . . . 21
Installation of Wear Plates . . . . . . . 22-23
Installation of Inner Magnet . . . . . . 24-27
B: Outer Magnet-Motor Assembly . . 28-29
Outer Magnet Installation. . . . . . . . 29
C: Motor-Pedestal Assembly. . . . . . . 30
D: Cartridge Installation. . . . . . . . . . . 30