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Related Manuals for GORMAN-RUPP PUMPS JW Series
Summary of Contents for GORMAN-RUPP PUMPS JW Series
- Page 1 OM−05813−01 September 20, 2005 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL SUBMERSIBLE PUMPS JW SERIES THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. www.gormanrupp.com Copyright by the Gorman-Rupp Company...
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Page 2: Section 1 − Introduction
JW SERIES OM−05813 SECTION 1 − INTRODUCTION Gorman-Rupp JW Series submersible and dry well To avoid leakage of the pumped liquid into the motor, pumps are suitable for use in either dry or wet well si- the shaft is provided with two mechanical seals with a tuations, provided that the appropriate method of seal oil chamber between them. - Page 3 The risk assessment also indicates that Following is a description of the model numbering there is a possibility of excessive surface system for Gorman-Rupp JW Series pumps. JW Se- ries pump model numbers include series, style, im- temperature if the pump is allowed to run peller type, pump type, port size and motor speed.
- Page 4 JW SERIES OM−05813 TMU − suitable for safe area only Motor Full load current Eex d − suitable for Zone 1 or 2 Suffix Wk − Water jacket Suffix O − Oil filled Motor input power ∆ Symbol = suitable for star/delta starting Υ...
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Page 5: Section 2 − Product Description
JW SERIES OM−05813 SECTION 2 − PRODUCT DESCRIPTION PUMP SELECTION Sewage sludge: Humus, primary, surplus activated, return activated. Because of the extremely wide range of capacities Storm water and surface water. and heads involved in sewage pumping, plus the different... - Page 6 OM−05813 JW SERIES SCREW IMPELLERS Sewage sludge: Humus, primary, surplus activated, return activated. Gorman-Rupp screw impellers are specifically Storm water and surface water. designed handling primary sludge secondary sludges with up to 10% solids content, Waste water containing large quantities of solids in offering improved efficiency in addition to solids suspension.
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Page 7: Section 3 − Health And Safety
JW SERIES OM−05813 SECTION 3 − HEALTH AND SAFETY INTRODUCTION Suitable personal protective equipment must be worn as appropriate. The instructions and information given in this manual Any defects in, or damage to, plant or are as explicit as is reasonably practicable. However,... - Page 8 OM−05813 JW SERIES WORKING IN HAZARDOUS AREAS All maintenance work must be performed in compliance with all electrical maintenance Appropriate safety equipment (i.e. gas requirements within the country where the detectors, breathing apparatus, etc)., must pump is installed (within the UK, the be used.
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Page 9: Section 4 − Handling And Storage
JW SERIES OM−05813 SECTION 4 − HANDLING AND STORAGE HANDLING STORAGE On unpacking the pump, check carefully for any Storage should be in a dry, clean, vibration-free transit damage or other obvious defect. Report environment, protected from extremes immediately any complaint both to Gorman-Rupp temperature and free of corrosive or chemically and the carrier. -
Page 10: Section 5 − Installation And Commissioning
JW SERIES OM−05813 SECTION 5 − INSTALLATION AND COMMISSIONING INSTALLATION Thermostats open when reaching the limiting temperature and close when the temperature decreases. 1. Before installing the pump, perform the follow- Thermistor cables are tagged 1 and 2 as shown ing checks: on wiring diagram no SE 2392. - Page 11 OM−05813 JW SERIES 5. Isolate the pump from its electrical power The crane may be equipped with a hand-operated supply, then attach suitable lifting equipment to winch mounted on the crane arm. The winch winds a the lifting handle (or eye) and lift the pump into stainless steel wire rope over a pulley to raise or lower position in the well.
- Page 12 JW SERIES OM−05813 to the steel ring beneath that engaged by the lift- Lower the pump progressively, using the holding ing hook. chain, to take the pump’s weight while the lifting car- bine hook is transferred from one of the lifting chain’s 16.Repeat the steps of this progressive ‘lift, hold...
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Page 13: Section 6 − Electrical Connections
JW SERIES OM−05813 SECTION 6 − ELECTRICAL CONNECTIONS Gorman-Rupp JW Series motors are supplied in a The separate instrumentation connections may be of number different electrical configurations. any colour, but are always identified by tag numbers Normally a wiring diagram will be attached to the end as shown in the wiring diagrams. - Page 14 OM−05813 JW SERIES Thermistors Thermostats Single Dual Delta Star Delta Star Delta Star SE 2391 SE 2396 SE 2392 SE 2395 SE 2393 SE 2394 Figure 6−1. Wiring Diagram Identification As explained in INTRODUCTION, Section 1 of this manual, all motors are fitted with moisture detection probes in the seal oil chamber.
- Page 15 JW SERIES OM−05813 Table 6−1. Cable Sizes Frame Size Rated Output Cable Size Cable Size Cable Diameter with thermistor with thermostat max. and leakage control and leakage control 112 S/2-110 10G1,5 12G2,5 20/24 112 S/2-140 10G1,5 12G2,5 20/24 160 L/2-180...
- Page 16 OM−05813 JW SERIES Figure 6−2. Wiring Diagram SE−2391 PAGE 6 − 4 ELECTRICAL CONNECTION...
- Page 17 JW SERIES OM−05813 Figure 6−3. Wiring Diagram SE−2392 ELECTRICAL CONNECTION PAGE 6 − 5...
- Page 18 OM−05813 JW SERIES Figure 6−3. Wiring Diagram SE−2393 PAGE 6 − 6 ELECTRICAL CONNECTION...
- Page 19 JW SERIES OM−05813 Figure 6−4. Wiring Diagram SE−2394 ELECTRICAL CONNECTION PAGE 6 − 7...
- Page 20 OM−05813 JW SERIES Figure 6−5. Wiring Diagram SE−2395 PAGE 6 − 8 ELECTRICAL CONNECTION...
- Page 21 JW SERIES OM−05813 Figure 6−6. Wiring Diagram SE−2396 ELECTRICAL CONNECTION PAGE 6 − 9...
- Page 22 OM−05813 JW SERIES Figure 6−7. Wiring Diagram SE−2399 PAGE 6 − 10 ELECTRICAL CONNECTION...
- Page 23 JW SERIES OM−05813 MOTOR WINDINGS MOISTURE DETECTING 10 CORE CABLE PROBE 110v OR 120v 50Hz SUPPLY MOISTURE DETECTING PROBE PROBE MOISTURE DETECTING RELAY MECHANICAL SEAL FITTED IN CONTROL PANEL OIL RESERVOIR Figure 6−8. Moisture Probe Connections ELECTRICAL CONNECTION PAGE 6 − 11...
- Page 24 OM−05813 JW SERIES FOR 240v SUPPLY LINK 2 & 3 FOR 110v SUPPLY LINK 1 & 3 AND 2 & 4 24v SEC PROBE MOTOR FRAME PLUG SUITABLE FOR STANDARD 11 PIN RELAY BASE Figure 6−9. Moisture Probe Connections PAGE 6 − 12...
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Page 25: Section 7 −Operation And Maintenance
JW SERIES OM−05813 SECTION 7 −OPERATION AND MAINTENANCE FIRST SERVICE Table 7−1. Quantity of Oil Required to Re-Fill Seal Housing After the first 500 hours of operation, or not more than Motor Remarks 12 months, perform the following procedure: Frame Quantity 1. - Page 26 OM−05813 JW SERIES 7. Allow the pump to cool, then repeat the oil mechanical seals) is a major undertaking, as it change procedure described under FIRST involves disturbing integrity SERVICE. submersible enclosure. In the case of Eexd motors, it also affects the flameproof design concept.
- Page 27 JW SERIES OM−05813 2. Remove the impeller securing screw, bolt or 6. The seals can be replaced by reversing the nuts and any washers, cap, plug and ‘O’ rings (if procedure above. Observe seal fitted), then remove the impeller using a suitable manufacturer’s fitting instructions, which are...
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Page 28: Section 8 − Fault Finding
JW SERIES OM−05813 SECTION 8 − FAULT FINDING Pump fails to run automatically: interior of the casing. Alternatively, drain the (dry well) pump casing. Check that the suction and delivery valves Check for mechanical obstruction are open, as applicable. preventing the impeller from turning. Clear any obstruction. - Page 29 OM−05813 JW SERIES If no obstruction and/or valve malfunction is Check that the air release valve is detected, consult The Gorman-Rupp factory for functioning correctly. assistance. Otherwise, return the pump to service. Contact: Rectify any valve malfunction and/or clear any obstruction from the air release The Gorman-Rupp International Department pipework.
- Page 30 For U.S. and International Warranty Information, Please Visit www.grpumps.com/warranty or call: U.S.: 419−755−1280 International: +1−419−755−1352 For Canadian Warranty Information, Please Visit www.grcanada.com/warranty or call: 519−631−2870 THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA...
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