KF Owner’s Manual • Installation • Use • Maintenance General Pump is a member of the Interpump Group 8
GENERAL PUMP INDEX A member of the Interpump Group KF SERIES 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3 3. SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3.1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3.2 High pressure system safety requirements . . . . . . . . . . . . . . . . .
GENERAL PUMP 1. INTRODUCTION A member of the Interpump Group Please read this manual carefully before using your pump. It contains the necessary information for correct installation, use and maintenance as well as some practical suggestions for trouble shooting. Providing KF high pressure water plunger pumps are correctly installed and maintained, they will give trouble-free operation for a long time.
GENERAL PUMP A member of the Interpump Group 3.3 Safety of operation The access into the area when a high pressure unit is working should be strictly prohibited to unauthorized personnel. The area should be suitably enclosed and its perimeter, so far as is reasonably practical, cordoned off and proper warning notices displayed in prominent positions.
GENERAL PUMP 4. PUMP IDENTIFICATION KF SERIES A member of the Interpump Group Each pump is fitted with a rating plate (see Fig. 1) containing the following information: 3. 2. 4. 5. 6. 6. pump model and version serial number max RPM power absorbed oil capacity (ltr) and oil specification max flow rate (l/min) Pump model, pump version and serial number should be specified when ordering spare parts. Should the pump be modified (i.
GENERAL PUMP A member of the Interpump Group 7. GENERAL INFORMATION ABOUT PUMP USE KF SERIES 8. CONNECTIONS AND PLUGS The KF pump has been designed to pump fresh and filtered (360 micron max.) water at room temperature. Special versions are available for pumping water up to 185oF and for reverse osmosis units. 7.
GENERAL PUMP 9. PUMP INSTALLATION A member of the Interpump Group 9.1 Positioning The pump must be installed on a rigid and perfectly flat and horizontal base by means of the proper four M16 x 1/2 threaded feet. The base should be rigid enough to avoid any misalignment or flexing on the pump/ transmission coupling axis due to the torque involved during operation. The unit should not be rigidly fixed on the floor but be installed upon vibration dampeners.
GENERAL PUMP A member of the Interpump Group 9.5 Filtration All pumps require a suitable filter. The filter should be installed as close as possible to the pump, should allow easy inspection and have the following characteristics: 1. The filter capacity must be at least 3 times the rated pump volume. 2. Filter port diameters must not be smaller than the pump inlet ports. 3. Filtration degree in between 50 and 80 mesh (360 200 microns).
GENERAL PUMP 9.7 Internal diameter of piping A member of the Interpump Group KF SERIES To determine the internal diameter of the piping, follow the following diagram. Example 1 (-----) With a flow of 150 l/m and a water speed of 0.45 m/sec, the diagram line joining the 2 scales intersects the central scale, indicating the diameters, at a value of 80mm. Example 2 ( ) With a flow of 70 l/min and a water speed of 5.
GENERAL PUMP A member of the Interpump Group 10. START UP AND RUNNING PROCEDURES 10.1 Before start up Before start up make sure that the following conditions have been complied with: 1. Suction line should be connected: the pump must never run dry. 2. Suction line must be perfectly airtight. 3. Any ON-OFF valve in between the pump and water source should be open and make sure the water gets into the pump freely. 4.
GENERAL PUMP KF SERIES A member of the Interpump Group 11. MAINTENANCE INSTRUCTIONS 11.1 Crank mechanism maintenance. Check oil level though the oil level indicator (1, Fig. 8) at least on a weekly basis.
GENERAL PUMP A member of the Interpump Group 11.1.1 Crank mechanism disassembling Do as follows: A) Drain the oil from the pump and remove: -shaft key -back cover -connecting rod cap -side covers. To do so, put 3 screws M6 x 50 wholly threaded into the holes drilled for that purpose. See fig 9. KF SERIES 11.1.
GENERAL PUMP A member of the Interpump Group C) Before reassembling the side covers, check the seal lips for wear. If they need replacing, fit the new ring following the indications in Fig. 12. KF SERIES 11.1.3 Disassembling / Reassembling of the bearings and shims The type of bearings (conical roller) ensures there is no end float on the crankshaft; the shims must be determined to reach that purpose.
GENERAL PUMP KF SERIES A member of the Interpump Group 11.1.4 Disassembling / reassembling of the crankshaft with replacement of the bearings After disassembling the side covers, as indicated in 11.1.1, remove the outer ring nut of the bearings from their covers and the inner ring nut, together with the remaining part of the bearing, from the 2 shaft ends by means of a standard pin extractor or similar tool. See fig. 15 and 16. From: 0.05 From: 1.00 From: 0.21 From: 0.31 From: 0.36 From: 0.46 From: 0.
GENERAL PUMP 11.2 Fluid end maintenance A member of the Interpump Group 11.2.1 Pump head The fluid end does not require periodical maintenance. Service operations are limited to the component inspection and/or replacement, when necessary. Valve Units: A) B) C) KF SERIES IMPORTANT NOTE: BEFORE REPOSITIONING THE VALVE UNITS AND O-RINGS CLEAN AND PERFECTLY DRY ALL VALVE HOUSINGS INSIDE THE FLUID END. Loosen the valve cover screws. Extract the valve plugs with an extractor or a M8 threaded rod.
GENERAL PUMP B) KF SERIES A member of the Interpump Group Remove the high pressure packings from the fluid end and the low pressure ones from their support by means of standard tools, taking great care not to damage the seats. Fig. 23 Take note of the correct order of the entire package components when dissassembling (Fig. 24): 1. Head ring 2. HP packing 3. “Restop” ring 4. Middle ring 5. LP packing 6. Back packing 7. Elastic Ring 8.
GENERAL PUMP A member of the Interpump Group 14. PUMP STOPPED FOR LONG TIME 12. SCREW CALIBRATION Before starting the pump for the very first time after a long period from the date of shipment check for the correct oil level, check the valves as indicated in chapter 11 and then comply with the starting procedures indicated in chapter 10.
GENERAL PUMP A member of the Interpump Group 16.
GENERAL PUMP Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Part # Description F91859000 Roller bearing F71010022 F90391800 F71220081 F71220381 F71220581 F90075600 F70211801 F90387700 F71150122 F99186700 F90384100 F98218100 F98212000 F71160022 F90400000 F98206000 F99313800 F71020035 F91500000 F71150022 F90170000 F71030043 F90060600 F71050015 F97743000 F90167800 F96714000 F71040609 F71040309 F71040409 28 29 30 31 F71040509 F90367100 F71219566 F90079700 F71217670 F
GENERAL PUMP A member of the Interpump Group 17. TROUBLE SHOOTING KF SERIES THE PUMP DOES NOT PRODUCE ANY NOISE: the pump is not primed and is running dry! - no water in the inlet line - the valves are blocked - the pressure line is closed and does not allow the air to get out the fluid end. INSUFFICIENT PUMP PRESSURE: - the nozzle is (or has become) too large.
GENERAL PUMP A member of the Interpump Group 18. MAINTENANCE TOOLS The pump maintenance can be carried out with simple tools for mounting and dismounting the components, but special tools can be made to facilitate the operations. The drawings here below will help the operator make tools if he choosed to. KF SERIES 18.2 Piston guide oil seal assembling 18.
GENERAL PUMP A member of the Interpump Group 19. MAINTENANCE LOG KF 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 300615 Rev.
