LK Owner’s Manual • Installation • Use • Maintenance LK36/40/45 LK50/55/60
GENERAL PUMP INDEX A member of the Interpump Group LK SERIES 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 4 3. SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3.1 General safety warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3.2 High pressure unit safety requirements . . . . . . . . . . . . . . . . . .
GENERAL PUMP INDEX (continued) A member of the Interpump Group LK SERIES 13. PRECAUTIONS AGAINST FREEZING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 18 15 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 19 14. 16. 17. WARRANTY TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 18 EXPLODED VIEWS AND PARTS . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL PUMP 1. INTRODUCTION A member of the Interpump Group LK SERIES This manual describes the use and maintenance instructions of the LK pump, and should be carefully read and understood before using the pump.The proper functioning and lifetime of the pump depends on correct use and proper maintenance. General Pump declines all responsibility for damage caused due to negligence and/or failure to observe the instructions described in this manual.
GENERAL PUMP A member of the Interpump Group LK SERIES 3.3 Safety During Operation The working area of a high pressure system must be clearly indicated. Access must be prohibited to non-authorized personnel and, as far as possible, it must be restricted or fenced off. The personnel authorized to access this area must be previously trained, and informed about the risks that may arise from failures or malfunctions of the high pressure unit. Before starting the unit, the operator must check: 1.
GENERAL PUMP LK SERIES A member of the Interpump Group 4. PUMP IDENTIFICATION Each pump has a rating plate bearing the following information: Pump model and version Serial Number Maximum RPM Power consumption Hp-kW Flow Rate in l/mn - GPM Pressure in bar/PSI Pump model, version and serial number must always be specified when ordering spare parts. 5. TECHNICAL FEATURES MODEL RPM LK3615 1500 LK3617 FLOW RATE PRESSURE l/min 140 5800 400 145 107 1750 40.
GENERAL PUMP LK SERIES A member of the Interpump Group 6. DIMENSIONS AND WEIGHTS For dimensions and weight of LK36, LK40 and LK45 pumps, please refer to fig. 2. Weight: 790 Lbs./358 Kg. fig. 2 For dimensions and weight of LK50, LK55 and LK60 pumps, please refer to fig. 2a. Weight: 829 Lbs./376 Kg. fig.
GENERAL PUMP A member of the Interpump Group 7.INFORMATION ABOUT PUMP USE LK SERIES The LK pump has been designed to operate with filtered water (see paragraph 9.6) and at maximum temperature of 1040 F (400 C). Other fluids may be used only upon the approval of The Customer Service Department . 7.1 Water Temperature The max water temperature is 1040 F (400 C). However, it is possible to use the pump at temperatures of up to 1400F (600C) for short periods of time.
GENERAL PUMP A member of the Interpump Group LK SERIES In any case, oil must be changed at least once a year since it may deteriorate by oxidation. For room temperatures that differ from that mentioned earlier, follow the indications contained in the diagram below, keeping in mind that the oil must have a minimum viscosity of 180 cSt. VISCOSITY/ROOM TEMPERATURE DIAGRAM The spent oil must be placed in a suitable container and disposed of properly at an authorized center.
GENERAL PUMP A member of the Interpump Group 8. PORTS AND CONNECTIONS The LK Series pumps (see fig. 4 and 5) are provided with: LK SERIES 2 inlet ports “IN”, 2” BSP-F (LK36, LK40, LK45) 2 inlet ports “IN”, 80 mm Flange (LK50, LK55, LK60). For the pump to work properly, it does not matter which of the 2 ports the line is connected to. Unused port must be hermetically sealed.
GENERAL PUMP 9. PUMP INSTALLATION A member of the Interpump Group LK SERIES 9.1 Installation The pump must be installed in a horizontal position using the drilled Ø .75 in (19 mm) feet. The base must be perfectly flat and sufficiently rigid in order to avoid bending and misalignments on the pump/transmission coupling axis due to the torque applied during operation. The pump is equipped with two lifting eyebolts to facilitate installation, as shown in the following figure.
GENERAL PUMP LK SERIES A member of the Interpump Group The power take-off can be taken from either side of the pump. Generally the pump is supplied with the PTO shank for the right-hand side (see fig. 6). To get the PTO from the left-hand side, she shaft end cover must be taken off and remounted on the right hand side of the pump (see 2.1.1 in the repair manual). Vice-versa, the lug must be removed from the right-hand side and inserted in the shank of the left-hand side. 9.
GENERAL PUMP A member of the Interpump Group LK SERIES 9.6 Filtration Two filters must be installed on the pump inlet line, positioned as shown in fig. 7 and fig.
GENERAL PUMP A member of the Interpump Group LK SERIES The filter must be installed as close as possible to the pump, should allow easy inspection and have the following characteristics: 1. Flow rate minimum 3 times greater than the pump’s flow rate. 2. Diameter of the entry/exit apertures not less than the diameter of the pump’s inlet port. 3. Filtration grade ranging between 200 and 360 µm. For the pump to operate efficiently, the filter must be cleaned periodically.
GENERAL PUMP A member of the Interpump Group LK SERIES 9.8 Internal Diameter of the Hose Line To determine the internal diameter of the hose, please refer to the following diagram: Inlet Hose With a flow rate of ~105 GPM (400 l/mn) and water speed of 1 m/sec. the diagram line that connects the two scales intersects the central scale, indicating the diameters, at a value of ~ 3.5 inch (90 mm). Outlet Hose With a flow rate of ~105 GPM (400 l/mn) and water speed of 5.5 m/sec.
GENERAL PUMP LK SERIES A member of the Interpump Group 10. START-UP AND OPERATION 10.1 Preliminary Inspections Before Start-up Be sure that: The inlet line is connected and up to pressure (see Chapter 9) the pump must NEVER run dry. 1. The suction line must be perfectly airtight. 2. All the On-Off valves between the pump and the feeding source are completely open. The outlet line must discharge freely in order to allow the air in the pump to be expulsed easily, thus facilitating pump priming. 3.
GENERAL PUMP 10.2 Start-up 1. 2. 3. 4. 5. 6. A member of the Interpump Group LK SERIES When starting the pump for the first time, check for the correct direction of rotation. Check the pump’s water supply is correct. The pump must be started off-load. Verify that when operating, the rotation speed does not exceed the rated speed. Allow the pump to operate for not less than 3 minutes before putting it under pressure.
GENERAL PUMP A member of the Interpump Group 12. STOPPING THE PUMP FOR LONG PERIODS LK SERIES 12.1 Filling the Pump With An Anti-Corrosion Emulsion or Anti-freeze By Using An External Diaphragm Pump As In The Layout Shown in Paragraph 9.6. a) Close the filter draining, if open. b) Be sure that the connecting hose is clean, spread with grease and connect it to the high pressure outlet port. c) Connect the inlet hose to the diaphragm pump.
GENERAL PUMP A member of the Interpump Group 15.
GENERAL PUMP A member of the Interpump Group 16.
GENERAL PUMP Item 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Part # Description F78120615 Manifold, LK40, LK45 F78120515 F200030170 F36206766 F90526000 F90389000 F36208801 F94760000 F36206151 F36715101 F74210651 90358400 F98204600 F36206966 F90526500 F90527600 F90391100 F94760500 F36715301 F74211070 F90528000 F94775000 F74210866 F74210315 F99521200 F99514700 F71210456 F90367700 F90410200 F78216056 F7821
GENERAL PUMP A member of the Interpump Group 16.
GENERAL PUMP Item 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Part # Description F200030160 Suction Valve Device F120115 F36206666 F90527000 F90410500 F36208701 F94769800 F36206051 F36715001 F74210551 90358400 F98204600 F36206866 F90527300 F90529000 F90413400 F94770000 F36715201 F74210970 F90529300 F94800000 F74210766 F74210115 F99521200 F99514700 F71210456 F90367700 F90418500 F78214756 F78214856 F782149
GENERAL PUMP MAINTENANCE LOG A member of the Interpump Group LK SERIES HOURS & DATE OIL CHANGE GREASE PACKING REPLACEMENT PLUNGER REPLACEMENT VALVE REPLACEMENT GP Companies, Inc. 1174 Northland Drive Mendota Heights, MN 55120 Phone:651.686.2199 Fax: 800.535.1745 www.generalpump.com email: sales@gpcompanies.com Ref 300771 Rev.
