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INSTALLATION, OPERATION & MAINTENANCE MANUAL
H-SERIES & 3-SERIES
H-SERIES: Models H1F, H3F, H5R, H5F, H7N, H7R, H7F, H9R & H9F - MC
3-SERIES: Models 31F, 33F, 35R, 35F, 37R, 37F, 39R, 39F & 311F - MC
Section 1:
Section 2:
Section 3:
Section 4:
Section 5:
© Dec. 2010 Liquiflo, All rights reserved
443 North Avenue, Garwood, NJ 07027 USA
MAGNETIC-DRIVE
Table of Contents
Forward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General Information . . . . . . . . . . . . . . . . . . . 3-8
Safety Precautions . . . . . . . . . . . . . . . . . . . . 9
Pump & Motor Installation . . . . . . . . . . . . . . 10-12
Start-Up & Operation . . . . . . . . . . . . . . . . . . 13
Maintenance & Repair . . . . . . . . . . . . . . . . . 14-30
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-47
Tel: 908-518-0777
TM
GEAR PUMPS
Document No.: 3.20.074
Fax: 908-518-1847
www.liquiflo.com
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Table of Contents
Troubleshooting
Related Manuals for Liquiflo H Series
Summary of Contents for Liquiflo H Series
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Page 1: Table Of Contents
Appendix ......31-47 © Dec. 2010 Liquiflo, All rights reserved Document No.: 3.20.074... -
Page 2: Forward
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. -
Page 3: General Information
Verify that the equipment has not been damaged in transit. Verify that the pump Serial Number is stamped on the pump's rear housing. Verify that the Liquiflo Stainless Steel Nameplate is secured to the pump’s housing: For ATEX certification, verify that the following Stainless Steel Tag is attached to the pump:... -
Page 4: Pump Specifications
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Pump Specifications Table 1A: Performance Specifications (English System Units) Pump NPSHR Dry Lift Pump ∆P Model Flow Speed Viscosity Series UNITS: 0.48 1750 100,000 .000276... - Page 5 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Table 2: Absolute Temperature & Pressure Ratings Minimum Maximum Maximum Pump Operating Operating Operating Pump Models Temperature Temperature Pressure Series UNITS: °F °C °F °C...
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Page 6: Model Coding
Teflon O-rings Retaining Rings 316 SS Retaining Rings Bearing Pins Teflon Bearing Pins Magnetic Coupling MCU (75 in-lbs) Magnetic Coupling Options Single-Wall Containment Can NOTE: See the Liquiflo Product Catalog or the Liquiflo Website (www.liquiflo.com) for complete Model Coding information. -
Page 7: Pump Installation
Section 5.4. When performing maintenance, pay special attention to all cautionary notes given in these sections. Repair Kits & Replacement Parts Repair kits and replacement parts for the pumps can be purchased from your local Liquiflo distributor. Refer to Appendices 4 thru 6 for individual parts information. -
Page 8: Returned Goods Authorization (Rga)
Returned Goods Authorization (RGA) If it is necessary to return the pump to the factory for service, 1) Contact your local Liquiflo distributor to discuss the return, obtain a Returned Goods Authorization Number (RGA #) and provide the distributor with the required information (see RGA Record below). -
Page 9: Safety Precautions
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Section 2: Safety Precautions General Precautions • Always lock out the power to the pump driver when performing maintenance on the pump • Always lock out the suction and discharge valves when performing maintenance on the pump •... -
Page 10: Pump & Motor Installation
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Section 3: Pump & Motor Installation Installation of Pump, Motor and Base Refer to the Hydraulic Institute Standards for proper installation procedures of the base, pump and motor. -
Page 11: Gear Pump Requirements
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Gear Pump Requirements A positive displacement pump should have a pressure relief valve installed in the discharge line. The relief valve should be the closest valve to the discharge port of the pump and should bypass the discharge line back to the supply tank. -
Page 12: 3.4.2 Motor Hook-Up
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC 3.4.2 Motor Hook-Up Electrical wiring of the motor should be performed by a certified electrician. Follow the recommendations of the motor manufacturer and observe all electrical wiring safety standards. -
Page 13: Start-Up & Operation
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Section 4: Start-Up & Operation Precautions Prior to Starting Pump Verify that the pump and motor are suitable for the conditions of service. Verify that all suction and discharge valves are open before starting the pump. -
Page 14: Maintenance & Repair
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Section 5: Maintenance & Repair The pump has internal bearings, wear plates, gears and shafts which require replacement over time due to physical wear. The center housing of the pump may also incur physical wear and require replacement (see Appendix 3). -
Page 15: Appendix
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC PUMP DISASSEMBLY Follow the procedure below and refer to the drawings in Appendix 6. _____________________________________________________________________________________ Cartridge Removal: Remove the four front housing bolts (27) from the pedestal (16). - Page 16 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Detach the inner magnet (11) from the drive shaft (20) by removing the outer retaining Retaining Ring ring (28). Remove the retaining ring by...
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Page 17: Gear-Shaft Disassembly
Assemblies Plates and discard. NOTE: Liquiflo Repair Kits come with the gears and shafts preassembled, as shown in Appendix 4. If you are using a repair kit to rebuild the pump, it is not necessary to separate the gears from the shafts. -
Page 18: Removal Of Bearing Lock Pins
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Remove the other retaining ring (28) Idler Gear- Drive from the shaft. Shaft Parts Gear- Shaft NOTE: One method for removing Parts the retaining ring is shown at right. -
Page 19: Removal Of Outer Magnet
NOTE: The pedestal is shown connected directly to a motor, but the pedestal could also be connected directly to the Liquiflo S-Adapter (P/N SADAPT) or the Liquiflo Power Frame (P/N A-620804). Each of these devices can be used to long-couple the mag- drive pump to the motor. -
Page 20: Pump Assembly
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC PUMP ASSEMBLY Follow the procedure below and refer to the drawings in Appendix 6. Part A: Pump Cartridge Assembly A Pump Cartridge is a complete mag-drive pump less the outer magnet and pedestal (see photo at right). -
Page 21: Installation Of Bearings
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Installation of Bearings into Front and Rear Housings: Insert bearings (3A & 3B) into the housing bores, while aligning the grooves for the bearing lock pins. -
Page 22: Installation Of Wear Plates
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Install housing O-rings (5) into the racetrack-shaped grooves of the center housing (21). O-rings CAUTION! Do not reuse O-rings. _____________________________________________________________________________________ Place the center housing (21) onto the front housing (8) with orientation as shown. - Page 23 _____________________________________________________________________________________ Insert the gear-shaft assemblies into the housing, as shown. NOTE: Liquiflo Repair Kits contain the gears and shafts preassembled, as shown below. If the gears and shafts are not assembled, see Appendix 5 for the assembly procedure. Drive Gear-...
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Page 24: Installation Of Inner Magnet
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Place the rear housing (2) on the center housing (21). Rear Housing NOTE: Make sure the rear housing seats properly over the alignment pins. If the rear housing has an Internal Bearing Flush (IBF) groove, the groove must be on the discharge side of the pump (see bottom of Page 20). - Page 25 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Push the retaining ring into the outer groove. Tap the retaining ring down and out of the outer groove by using either: [A] a rubber mallet and specially made tool (see Appendix 2), or [B] a rubber mallet and open-end wrench that is slightly larger than the shaft diameter.
- Page 26 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Inner Magnet Installation Three kinds of inner magnets can be used in the pumps, as shown below. The axial positioning of the inner magnet is automatically set by snap (retaining) rings installed on the drive shaft. The snap rings and key serve to lock the inner magnet on the shaft.
- Page 27 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Slide the inner magnet (11) onto the drive shaft (20) until it contacts the retaining ring in the inner groove. Inner Magnet NOTE: Install inner magnet with orientation as described on Page 26.
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Page 28: B: Outer Magnet-Motor Assembly
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Part B: Outer Magnet-Motor Assembly The axial positioning of the outer magnet on the motor shaft is critical to pump performance. Improper positioning can cause the outer magnet to rub against the front housing or produce an axial load on the inner magnet, causing premature pump wear. -
Page 29: Outer Magnet Installation
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Outer Magnet Installation The procedure for positioning the outer magnet on the motor shaft is dependent on the motor frame used with the pump. The four standard cases are described below: _____________________________________________________________________________________ NEMA 56C, 56HC &... -
Page 30: C: Motor-Pedestal Assembly
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Part C: Motor-Pedestal Assembly Install the motor (with outer magnet) to the pedestal (16) using four sets of bolts (15) and lockwashers (34). NOTE: The C-faces of the motor and pedestal should mate freely and mount flush. -
Page 31: Appendix
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 1: Fastener Torque Specifications Maximum Torque Specifications for 18-8 Stainless Steel Bolts Max Torque Qty. Bolt Specifications Function Pump Models Bolt Size (per... -
Page 32: A-2: Retaining Ring Tool Specifications
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 2: Retaining Ring Tool Specifications The following tool is recommended for the efficient and safe installation or removal of the retaining rings used in the pump. It should be manufactured from a hard material, such as steel. -
Page 33: A-3: Wear Allowances
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 3: Wear Allowances When a pump requires maintenance, a convenient way to restore the pump to like-new condition is to use a repair kit. The repair kit contains all internal wear parts as well as O-rings, retaining rings, bearing lock pins, housing alignment pins and keys. - Page 34 Wear Allowances Chart. (Note: Most Liquiflo wear plates are manufactured with cut-outs or relief grooves to minimize hydraulically induced gear separation forces during pumping. These relieved wear plates increase pump life by reducing loads on bearings and shafts.
- Page 35 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 3: Wear Allowances (Continued) Wear Allowances Chart (Units: inches) Gears Shafts Wear Plates Bearings Pump Pump Nom. Nom. Nom. Nom. Series Model O.D.
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Page 36: A-4: Pump Parts List
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 4: Pump Parts List Repair Kit parts (and quantities): Drive gear-shaft assembly (1) Idler gear-shaft assembly (1) Bearings (4) Wear plates (4) Housing alignment pins (4) -
Page 37: A-5: Gear-Shaft Assembly
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 5: Gear-Shaft Assembly Parts List for Gear-Shaft Assemblies Drive Gear-Shaft Parts Idler Gear-Shaft Parts Part Quantity Part Quantity Drive Gear Idler Gear Drive Shaft... - Page 38 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 5: Gear-Shaft Assembly (Continued) To identify the pump shafts, refer to the following chart: Shaft Identification Chart Drive Drive Idler # of Gear...
- Page 39 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 5: Gear-Shaft Assembly (Continued) Gears: The H-Series and 3-Series pumps use spur style gears, as shown below: To identify the gears, use the following chart:...
- Page 40 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 5: Gear-Shaft Assembly (Continued) Assembly Procedure: CAUTION! Be careful not to damage the shafts. Place one retaining ring (28) on a firm rubber mat and then place the shaft over the retaining ring, as shown.
- Page 41 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 5: Gear-Shaft Assembly (Continued) Install the key (23A) and gear (22) on the shaft. NOTE: The gear shown is a H3F metallic drive Gear gear.
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Page 42: A-6: Reference Drawings
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 6: Reference Drawings Cross-Sectional Drawing – Mag-Drive Pump, Close-Coupled Item # Description Qty. Item # Description Qty. Idler Shaft Drive Shaft Rear Housing... - Page 43 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 6: Reference Drawings (Continued) Exploded View Drawing – Mag-Drive Pump, Close-Coupled Note: Pump Models H7-H9, 37-39 & 311 each have four bearings of equal size.
- Page 44 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 6: Reference Drawings (Continued) Cutaway View Drawing – Mag-Drive Pump, Close-Coupled Item # Description Qty. Item # Description Qty. Idler Shaft Drive Shaft...
- Page 45 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 6: Reference Drawings (Continued) Dimensional Drawing #1 – Mag-Drive Pump with Threaded Ports, Close-Coupled Bracket Motor Dimensional Drawing #2 – Mag-Drive Pump with...
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Page 46: A-7: Troubleshooting Guide
Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 7: Troubleshooting Guide Troubleshooting Guide – Part 1 Problem Possible Cause Corrective Action Verify suction pipe is submerged. Pump not primed Increase suction pressure. - Page 47 Liquiflo Installation, Operation & Maintenance Manual MAG-DRIVE Gear Pumps Models H1-H9, 31-39 & 311 - MC Appendix 7: Troubleshooting Guide (Continued) Troubleshooting Guide – Part 2 Problem Possible Cause Corrective Action Install suction strainer. Limit solids concentration. Abrasives in fluid Reduce pump speed or use larger pump running at lower speed.