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Summary of Contents for Esco LP-12
- Page 1 INSTALLATION, OPERATION AND MAINTENANCE MANUAL WITH PARTS LIST LP SERIES PUMP MODEL LP - 12 Thomas Pump & Machinery 120 Industrial Drive Slidell, LA 70460 PH: 985-649-3000 Fax: 985-649-4300...
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Page 2: Table Of Contents
TABLE OF CONTENTS INTRODUCTION................... Pg. 03 WARNING – SECTION A ................Pg. 04 INSTALLATION – SECTION B..............Pg. 05 Pump Dimensions..............Pg. 05 PREINSTALLATION INSPECTION..........Pg. 06 POSITIONING PUMP..............Pg. 06 Lifting..................Pg. 06 Mounting..................Pg. 06 Clearance................... Pg. 06 SUCTION AND DISCHARGE PIPING.......... - Page 3 TABLE OF CONTENTS (Continued) TROUBLESHOOTING – SECTION D ……………………….... Pg. 18 PUMP MAINTENANCE AND REPAIR – SECTION E………..Pg. 21 PERFORMANCE CURVE………………………………………..Pg. 21 Pump Model and Repair Rotating Assembly ..…………..Pg. 22 PARTS LISTS ................. Pg. 23 PUMP AND SEAL DISASSEMBLY AND REASSEMBLY….... Pg.
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Page 4: Introduction
If there are any questions regarding the pump or its applications which are not covered in this manual or in other literature accompanying this unit, please contact your Bombas Esco S/A distributor, or write: Thomas Pump & Machinery... -
Page 5: Warning - Section A
SAFETY – SECTION A These warnings apply to LP series basic pumps. WARNING! Bombas Esco has no control over or particular knowledge of the power source which will be used. Refer to the manual accompanying the After the pump has been positioned, make... -
Page 6: Installation - Section B
For further assistance, contact your Bombas Esco Most of the information pertains to a standard distributor or the Bombas Esco Company. static lift... -
Page 7: Preinstallation Inspection
If the maximum shelf life has been exceeded, or if anything appears to be abnormal, contact Materials your Bombas Esco distributor or the factory to determine the repair or updating policy. Do not Either pipe or hose maybe used for suction and... -
Page 8: Line Configuration
If hose is used In suction lines, it must be the Fittings rigid-wall, reinforced type to prevent collapse under suction. Using piping couplings in suction Suction lines should be the same size as the pump lines is not recommended. inlet. If reducers are used in suction lines, they should be the eccentric type, and should be installed with the Line Configuration flat part of the reducers uppermost to avoid creating... -
Page 9: Suction Lines Positioning
If it is necessary to position inflow close to the suction Suction Line Positioning inlet, install a baffle between the inflow and the in suction lines, it must be the rigid-wall, reinforced type The depth of submergence of the suction line is to prevent collapse under suction. -
Page 10: Bypass Lines
Air Release Valve be installed in the bypass line. Bypass Lines Bombas Esco Automatic Air Release Valves are reliable, and require minimum maintenance. See Self-priming pumps are not air compressors. During AUTOMATIC AIR RELEASE VALVE in this... -
Page 11: Automatic Air Release Valve
Bombas Esco Automatic Air Release Valve will permit air to escape through the bypass line, Some leakage (1 to 5 gallons [3.8 to 19 liters] per and then close automatically when the pump is fully minute) will occur when the valve is fully closed. -
Page 12: Alignment
Check Rotation, Section C, before alignment of the NOTE pump. It is recommended that each Air Release Valve be When mounted at the Bombas Esco factory, driver fitted with an independent bleeder line directed pump aligned before shipment. -
Page 13: Coupled Drivers
WARNING! Coupled Drives When using couplings, the axis of the power source must be aligned the axis of the pump shaft in both When checking alignment, disconnect the power source the horizontal and vertical planes. Most couplings to ensure that the pump will remain inoperative. require a specific gap or clearance between the driving and the driven shafts. - Page 14 MISALIGNED: SHAFTS MISALIGNED: SHAFTS ALIGNED: SHAFTS PARALLEL NOT PARALLEL NOT IN LINE AND SHEAVES IN LINE Figure 6C. Alignment of V-Belt Driven Pumps Tighten the belts in accordance with the belt manufacturer’s instructions. If the belts are too loose, DANGER! they will slip;...
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Page 15: Operation - Section C
OPERATION – SECTION C Review all SAFETY information in Section A. 1. The pump is being put into service for the Follow instructions on all tags, labels and decals first time. attached to the pump. 2. The pump has not been used for a considerable length of time. -
Page 16: Operation
Lines With a Bypass The maximum liquid temperature for this pump is 160º F (71º C). Do not apply it at a higher If a Bombas Esco Automatic Air Release Valve operating temperature. has been installed, the valve will automatically... -
Page 17: Strainer Check
Strainer Check If s suction strainer has been shipped with the pump or installed by the user, check the strainer CAUTION! regularly, and clean it as necessary. The strainer should also be checked if pump flow rate begins to drop. If a vacuum suction gauge has been If the application involves a high discharge head, installed, monitor... - Page 18 Checking bearing temperatures hand inaccurate. Bearing temperatures Bearing overheating can also be caused by shaft measured accurately by placing a contact-type misalignment and/or excessive vibration. Thermometer against the housing. Record this temperature for future reference. When pumps are first started, the bearings may seem to run at temperatures above normal.
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Page 19: Troubleshooting - Section D
TROUBLESHOOTING - SECTION D Review all SAFETY information in Section A. WARNING! Before attempting to open or service the pump: 1. Familiarize yourself with this manual. 2. Lock out or disconnect the power source to ensure that the pump will remain inoperative. - Page 20 TROUBLE POSSIBLE CAUSE PROBABLE REMEDY PUMP STOPS OR Air leak in suction line. Correct leak. FAILS TO DELIVER RATED FLOW OR Lining of suction hose collapsed. Replace suction hose. PRESSURE Leaking or worn seal or pump gasket. Check pump vacuum. Replace leaking or worn seal or gasket.
- Page 21 TROUBLE POSSIBLE CAUSE PROBABLE REMEDY EXCESSIVE NOISE Cavitation in pump. Reduce suction lift and/or friction losses in suction line. Record vacuum and pressure gauge readings consult local representative or factory. Pumping entrained air. Locate and eliminate source of air bubble. Pump or drive not securely mounted.
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Page 22: Pump Maintenance And Repair - Section E
MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPERATING PERFORMANCE. STANDARD PERFORMANCE FOR PUMP MODEL LP - 12 SERIES : PERFORMANCE CURVE ESCO LP-12 MODEL 12"x12" BOMBAS ESCO SA Based on 70º F(21º C) clear water at sea level CAUTION! with minimum suction lift. Since pump... -
Page 23: Pump Model And Repair Rotating Assembly
SECTION DRAWING Figure 1. Pump Model and Repair Rotating Assembly... -
Page 24: Parts List
PARTS LIST Pump Model LP-12 ITEM NO. PART NAME PART NUMBER PUMP CASING 9600154000 IMPELLER 9600497000 SEAL ASSY 9800911000 VICTAULIC CPLG 9700777000 ACCESS COVER ASSY 9700498000 COVER GSTK 9901378000 COVER CLAMP 9901379000 MACHINE BOLT 2102565120 CLAMP BAR SCREW 9901380000 WEAR PLT ADJ SCREW... - Page 25 ITEM NO. PART NAME PART NUMBER LOCKWASHER 2321080920 HEX NUT 2211270080 WEAR PL O-RING 3606131360 SCKT HD CAPSCREW 2102185810 IMPELLER WASHER 9901387000 IMP ROLL PIN 2431101410 IMPELLER KEY 9901389000 HEX HD CAPSCREW 2101265850 WEAR PLATE 9700503000 SUCTION ELBOW 9901817000 HEX HD CAPSCREW 2101255810 LOCKWASHER 2321080920...
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Page 26: Pump And Seal Disassembly And Reassembly
PUMP AND SEAL DISASSEMBLY AND REASSEMBLY WARNING! Review all SAFETY Information in Section A. Use lifting and moving equipment in good Follow the instructions on all tags, label and decals repair and with adequate capacity to prevent attached to the pump. injuries to personnel or damage to equipment. -
Page 27: Seal Disassembly
Remove the suction piping. Remove the suction Remove the impeller adjusting shims (65). For check valve assembly (74) if additional clearance is ease of reassembly tie and tag the shims, or measure and record their thickness. required. Remove the foundation hardware from the elbow Seal Disassembly support (60) and pedestal support (46). -
Page 28: Impeller Shaft And Bearing Disassembly
Impeller Shaft And Bearing Disassembly Remove the bearing cap (31) and wave washer (27) and inspect the bearing cap O-ring (33) for damage. Press the oil seal (28) out of the cap, if required. Disconnect the discharge adaptor (16) from the piping system by removing the attaching hardware. -
Page 29: Seal Reassembly
Replace the bearing cap O-ring (33) and oil seal NOTE! (28). Position the lip of the oil seal away form the oil cavity, as shown in Figure 1. Position the wave washer (27) into the bearing cap undercut and It is recommended that the seal assembly and secure the bearing cap to the pedestal. -
Page 30: Pump Reassembly
Inspect the seal components for wear, scoring, Prime the threads of the socket head capscrew grooves, and other damage that might cause (54) with “Loctite Primer-T” (G-R P/N 18718- leakage. If any components are worn, replace 104) and apply four drops of “Loctite 242- the complete seal;... -
Page 31: Suction Check Valve Reassembly
Suction Check Valve Reassembly Periodically, clean and reinstall the seal cavity air vent (25). Install the stainless steel flat washers (77) onto the pivot arm; two on each side of the flap valve (81). Bearings Secure the flap valve and pivot caps (78) to the check valve body using the attaching hardware bearing housing... - Page 32 The obligation under this Warranty, statutory or otherwise, is limited to replacement or repair at factory or at a point designated by Esco, of such as part as shall appear to us upon inspection at such point, to have been defective in material or workmanship.
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