Esco LP-12 Installation, Operation And Maintenance Manual Download

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INSTALLATION, OPERATION

AND MAINTENANCE MANUAL

WITH PARTS LIST

SERIES PUMP

Thomas Pump & Machinery

120 Industrial Drive

Slidell, LA 70460

PH: 985-649-3000
Fax: 985-649-4300

MODEL

- 12

Summary of Contents for LP-12

Page 1: ...INSTALLATION OPERATION AND MAINTENANCE MANUAL WITH PARTS LIST LP SERIES PUMP Thomas Pump Machinery 120 Industrial Drive Slidell LA 70460 PH 985 649 3000 Fax 985 649 4300 MODEL LP 12...

Page 2: ...n Lines in Sumps Pg 07 Suction Lines Positioning Pg 08 DISCHARGE LINES Pg 08 Siphoning Pg 08 Valves Pg 08 Bypass Lines Pg 09 AUTOMATIC AIR RELEASE VALVE Pg 10 Theory of Operation Pg 10 Air Release Val...

Page 3: ...PARTS LISTS Pg 23 PUMP AND SEAL DISASSEMBLY AND REASSEMBLY Pg 25 Suction Check Valve Disassembly Pg 25 Pump Disassembly Pg 25 Seal Disassembly Pg 26 Impeller Shaft and Bearing Disassembly Pg 27 Impel...

Page 4: ...you get the best performance and longest life from your Esco pump This pump is an LP Series semi open impeller self priming centrifugal model with a suction check valve The pump is designed for handli...

Page 5: ...ing to open or service the pump 1 Familiarize yourself with this manual 2 Disconnect or lock out the power source to ensure that the pump will remain inoperative 3 Allow the pump to cool if overheated...

Page 6: ...must be tailored to the specific application Since the pressure supplied to the pump is critical to performance and safety be sure to limit incoming pressure to 50 of the maximum p ermissible operatin...

Page 7: ...in OPERATION Section C d Check levels and lubricate as necessary Refer to LUBRICATION in the MAINTENANCE AND REPAIR section of this manual and perform duties as instructed e If the pump and power sou...

Page 8: ...uction run air pockets will be created Fittings Suction lines should be the same size as the pump inlet If reducers are used in suction lines they should be the eccentric type and should be installed...

Page 9: ...Suction Line Positioning The depth of submergence of the suction line is critical to efficient pump operation Figure 2 shows Recommended minimum submergence vs velocity NOTE The pipe submergence requ...

Page 10: ...ump can cause parts being disengaged to be ejected with great force After the pump cools drain the liquid from the pump by removing the casing drain plug Use caution when removing the plug to prevent...

Page 11: ...tributor or Bombas Esco Company for information about an Automatic Air Release Valve for your specific application Air Release Valve installation The Automatic Air Release Valve must be independently...

Page 12: ...the Bombas Esco company for information about installation of an Automatic Air Release Valve for your specific application ALIGNMENT The alignment of the pump and its power source is critical for tro...

Page 13: ...e coupling is in alignment when the hub ends are the same distance apart at all points see Figure 6A Align non spider type couplings by using a feeler gauge or taper gauge between the coupling halves...

Page 14: ...s If the belts are too loose they will slip if the belts are too tight there will be excessive power loss and possible bearing failure Select pulleys that will match the proper speed ratio over speedi...

Page 15: ...e 2 The pump has not been used for a considerable length of time 3 The liquid in the pump casing has evaporated Once the pump casing has been filled the pump will prime and reprime as necessary WARNIN...

Page 16: ...ing to rupture or explode Leakage No leakage should be visible at pump mating surfaces or at pump connections or fittings Keep all line connections and fittings tight to maintain maximum pump efficien...

Page 17: ...es can be transmitted to the pump and piping system Close all connecting valves slowly On engine driven pumps reduce the throttle speed slowly and allow the engine to idle briefly before stopping CAUT...

Page 18: ...arning that the bearings are at the point of failing to operate properly Make certain that the bearing lubricant is of the proper viscosity and at the correct level see LUBRICATION in MAINTENANCE AND...

Page 19: ...check valve Correct leak Replace suction Hose Check pump vacuum Replace leaking Or worn seal or gasket Check piping installation and install bypass line if needed See INSTALLATION Check strainer and...

Page 20: ...Replace worn or damaged parts Check that impeller is properly centered and rotates Free impeller of debris Check driver output check belts or couplings for slippage Install bypass line Measure lift w...

Page 21: ...t local representative or factory Locate and eliminate source of air bubble Secure mounting hardware Clean out debris replace damaged parts BEARINGS RUN TOO HOT Bearing temperature is high but within...

Page 22: ...pump installations are seldom identical your performance may be difference due to such factors as viscosity specific gravity elevation temperature and impeller trim CAUTION Pump speed and operating co...

Page 23: ......

Page 24: ...050 22 CASING O RING 01 3606222840 23 HEX HD CAPSCREW 02 2101262630 24 LOCKWASHER 02 2321080800 25 SEAL CAVITY VENT 01 3310990060 26 PEDESTAL VENT 01 3310990060 27 WAVE WASHER 02 9901384000 28 OIL SEA...

Page 25: ...4 2102565120 68 CLEANOUT CVR ASSY 01 9800916000 69 CLAMP BAR SCREW 02 9901311000 70 COVER GSKT 01 9901390000 71 SUCTION ELBOW 01 9600155000 72 PRES RELIEF VLV 01 3768500300 73 PIPE PLUG 01 3310271060...

Page 26: ...bow Tighten the eye bolt completely until the threads bottom out PUMP AND SEAL DISASSEMBLY AND REASSEMBLY Review all SAFETY Information in Section A Follow the instructions on all tags label and decal...

Page 27: ...heck valve assembly 74 if additional clearance is required Remove the foundation hardware from the elbow support 60 and pedestal support 46 Tie and tag any shims used under the supports Support the su...

Page 28: ...ate O ring 63 Before opening the pedestal cavity drain the oil by removing the pedestal drain plug 38 Clean and reinstall the plug Remove the bearing cap 31 and wave washer 27 and inspect the bearing...

Page 29: ...al is nor normally reused because of the high polish on its lapped faces but if it is necessary to reuse the old seal wash all metallic parts in cleaning solvent and dry thoroughly Replace the bearing...

Page 30: ...aft with fresh cleaning solvent Reinstall the impeller washer 55 and roll pin 56 Prime the threads of the socket head capscrew 54 with Loctite Primer T G R P N 18718 104 and apply four drops of Loctit...

Page 31: ...valves are open LUBRICATION Seal Assembly Before starting the pump remove the air vent fitting from the top of the sight gauge assembly 84 and fill the reservoir with S A E 30 non detergent oil The oi...

Page 32: ...upon which repairs or alterations have been made unless authorized by Bombas Esco No warranty is made in respect to engines motors or trade accessories such being subject to warranties of their respec...

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