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Related Manuals for JEC Pumps AccuLAB Series
Summary of Contents for JEC Pumps AccuLAB Series
- Page 1 Operating & Maintenance Manual JEC AccuLAB Series Rotary Lobe Pumps...
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Page 2: Table Of Contents
CONTENTS GENERAL General Information ----------------------------------------------------------------------- Intended Use ------------------------------------------------------------------------------- CERTIFICATES ATEX (European Explosive Proof Certificate) ------------------------------------------ EC(Declaration of conformity) ----------------------------------------------------------- 1935/2004(EC) ----------------------------------------------------------------------------- FDA ------------------------------------------------------------------------------------------ SAFETY DO’S and DON’TS -------------------------------------------------------------------------- Warranty ------------------------------------------------------------------------------------ INSTALLATION Installation ---------------------------------------------------------------------------------- Start Up -------------------------------------------------------------------------------------- TROUBLESHOOTING Troubleshooting ---------------------------------------------------------------------------- MAINTENANCE Disassembly --------------------------------------------------------------------------------- Inspection ----------------------------------------------------------------------------------- Pump housing assembly ------------------------------------------------------------------... -
Page 3: General
GENERAL GENERAL INFORMATION Thank you for your purchasing JEC products! This manual is a part of the AccuLAB describes safe and appropriate operation during operating and in all life cycles. This contains instructions for installation, operation, disassembly and assembly, maintenance procedures, troubleshooting and a complete parts list for all. -
Page 8: Safety
SAFETY DO’S & DON’TS DO read and understand these instructions before installing or using the pump. DO use JEC spare parts when replacing a component of the pump. DO NOT services the pump while it is running. DO NOT place the pump in an application where the service ratings are exceeded. DO NOT modifies the pump. -
Page 9: Warranty
WARRANTY TERMS & CONDITIONS All terms & conditions and prices of sale are based on the applicable JEC price list at the time an order from Customer is received by JEC and are subject to change without notice. No assignment of the purchaser’s rights may be made without consent of JEC. JEC warrants its Product from defects in materials and workmanship for a period of one (1) year from the shipment date, providing it has been used as recommended and in accordance with recognized piping practice, and providing it has not been worn out due... -
Page 10: Installation
INSTALLATION INSTALLATION 1. Mounting surface should be flat and level. 2. The suction line should be kept as short as possible and present minimum friction loss. 3. Suction and discharge lines must be fully supported and installed so that no expansion or shock forces act on the pump which could lead to a bad influence. -
Page 11: Troubleshooting
TROUBLESHOOTING Problem Cause Solution Pump not turning Interruption of electrical power. Reset circuit breaker, check fuses. Key sheared or missing. Replace. Coupler or belts are not connected. Replace or adjust. Pump shaft or gears sheared. Replace. Wrong rotation. Reverse. Relief valve not properly adjusted. Adjust valve. -
Page 12: Maintenance
MAINTENANCE PUMP HOUSING DISASSEMBLY Prior to removal of pump, the shut-off valves in the suction and discharge pipe work must be closed. If there is any risk that product may be hardened, crystallized or frozen in the pump it should be thoroughly drained and cleaned immediately after use. Similar attention must be applied to the seal flushing system. - Page 13 The shims behind of rotors should be carefully maintained not to be lost or damaged in order to use when assembling. Fig. 4 In order to remove stationary seals, both of seal stopper/pin on the top and bottom should be loosened as shown. Fig.
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Page 14: Inspection
INSPECTION 1. Inspect O-rings and seals for reuse. Worn O-rings and seals should be replaced. 2. Inspect seal faces for scoring or cracks. Replace any seal faces that are damaged. 3. Inspect shaft shoulder matched to rotors and other metal parts for wear or damage. -
Page 15: Pump Housing Assembly
PUMP HOUSING ASSEMBLY Before assembly, make sure to clean the surface of all parts. Assembly can be done reverse way against the disassembling procedure. After replacing the old seals with new seals, put the shims into shaft. Fig. 9 Assemble a rotor onto shafts. Make sure seal side first into the shaft. -
Page 16: Shaft And Bearing Replacement
Turn off the energy source and LOCK OUT before dismantling pump. Use a locking device for which only the person doing the dismantling has the key. AccuLAB series has a single body combined pump housing with WARNING gear housing. Generally, gear housing is no needed for the maintenance (disassembly or assembly) except filling grease into bearing and gear or maintenance for the gear. - Page 17 Remove two long bolts securing bearing cover. Fig. 18 Bearing is firmly secured and so, after hitting the shaft from the front with soft hammer and bearing can be dismantled easily by using two long bolts as shown. Be careful not to damage the shaft with WARNING excess hitting.
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Page 18: Seal Assembly
SEAL ASSEMBLY Fig. 23 Install Slinger O-Ring (4.9) onto the shaft ensuring the O-ring is all the way up the shaft and against the pump body bore face. This is also visible through the slots in the sides of the pump body. •... -
Page 19: Rotor Clearance
ROTOR CLEARANCE Rotor clearance must be precisely maintained to provide maximum pumping CAUTION efficiency, yet prevent contact between rotors, rotor housing, and front cover during operation. If pumping efficiency is below expectations, or if parts contact has occurred during operation (Within rated differential pressure), check, rotor clearances and adjust if incorrect. -
Page 20: Rotor Timing
ROTOR TIMING Rotor timing must be precisely maintained to provide maximum pumping efficiency, yet prevent contact between rotors during operation. If pumping efficiency is below expectations, or if rotors contact during operation (within rated differential pressure), check rotor timing and adjust if incorrect. -
Page 21: Gearbox Assembly
GEARBOX ASSEMBLY Place the rotor (1.1) on a flat surface. Lubricate the front and rear bearing areas of the drive and idle shafts with grease. Insert the shafts into the rotor splines, for support. Heat the front bearing to 250 F. -
Page 22: Technical Information
TECHNICAL INFORMATION TECHNICAL DATA SPECIFICATIONS Maximum Inlet Pressure ………………………………………………..…… 1 bar (100 kPa, 14.5 psi) Maximum Differential Pressure ……………………….……………………… 4 bar (400 kPa, 58 psi) Maximum Flow Rate …………………………………..…………………………… 1 ㎥/hr (4.4 US GPM) Please consult JEC incase over 100 ㎥/hr up to 450 ㎥/hr Temperature Range ……………………………………………... -
Page 23: Dimensional Drawing
DIMENSIONAL DRAWING FOR BARE SHAFT... -
Page 24: Parts List Cross-Sectional View
PARTS LIST EXPLODED VIEW... - Page 25 All orders for repair parts must contain the following; 1. Complete model number (located on nameplate). 2. Pump serial number (located on nameplate). Description and part number from the parts list. Item Description Material Size Q’ty Rotor SUS316L Casing SUS316L Front Cover SUS316L Rear Cover...
- Page 26 JEC LTD. All technical information and its contents contained in this manual is subject to change without prior notice and does not represent a commitment on the part of JEC Ltd. Any part of 15-26, Beodeul-ro, Paltan-myun, Hwaseong-si, this manual may NOT be reproduced, copied, duplicated or transmitted in any form or by any means, electronic or Gyeonggi-do, 18578, Rep.