HE Owner’s Manual • Installation • Use • Maintenance
GENERAL PUMP INDEX A member of the Interpump Group HE SERIES 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3 3. SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3.1 General warnings for safe operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3.2 High pressure unit safety requirements . . . . . . . . . . . . . . . . . . . . . .
GENERAL PUMP 1. INTRODUCTION A member of the Interpump Group HE high pressure water plunger pumps have been designed for long life industrial applications and provided they are correctly installed and maintained will give long trouble-free operation. Read and understand this manual before using your pump; it contains the necessary information for the correct installation, use and maintenance as well as some practical suggestion for trouble shooting.
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 HE SERIES A member of the Interpump Group Each pump is fitted with a rating plate (see Fig. 1) containing the following information: 2. 3. 4. 5. 6. 7. 8. pump model and version serial number max RPM max operating pressure (bar) oil capacity (ltr) and oil specification gear box ratio 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 HE SERIES 8. CONNECTIONS AND PLUGS The HE pump has been designed to pump fresh filtered water at room temperature. HE-N special stainless steel versions are also available for critical fluids. 7.1 Water temperature Water temperature is critical for the pump life, the higher it is, the more likely it is to create cavitation, resulting in premature seal and valve failures.
GENERAL PUMP 9. PUMP INSTALLATION A member of the Interpump Group 9.1 Positioning The pump should be installed flat on a rigid base by means of the four M14 threaded feet. The base should be rigid enough to avoid any misalignment of flexing of the pump/transmission coupling axis due to the torque involved during operation. 9.2 Direction of rotation Fig. 4 shows the correct direction of rotation looking at the pump from the fluid end side.
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: HE SERIES 1. The filter capacity should be at least three times the rated pump volume. 2. Filter port diameters should not be smaller than the pump inlet ports. 3. Filtration degree in between 50 and 80 mesh (360 to 200 microns.
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 air-tight. 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 A member of the Interpump Group 11. MAINTENANCE INSTRUCTIONS 11.1 Crank mechanism maintenance. Check oil level through the oil level indicator 1, Fig 7 at least on a weekly basis. HE SERIES 11.2 Fluid end maintenance The fluid end does not require periodical maintenance. Service operations are limited to valve inspection and/or replacement, when necessary.
GENERAL PUMP A member of the Interpump Group 11.3 Pumping unit maintenance The only maintenance operation required for the pumping unit is greasing the pressure packings through the proper greasers (1, Fig. 11) located on the packing supports. Greasing should be carried out at even intervals at least every 100 hours by means of a hand pump. Stop greasing when the pump trigger becomes harder to operate: that means the grease chamber is full. Use top quality silicone grease (i.
GENERAL PUMP A member of the Interpump Group HE SERIES In order to fit the scraper in place, shape it manually as shown in Fig. 18. In order to replace the pressure packings (3, Fig. 16) loosen and remove the packing support (1, Fig 16) from the cylinder (2, Fig 16.) VERY IMPORTANT! The scraper is provided with an internal lip which performs the correct scraping effect only if oriented towards the fluid end. See window inside Fig. 18.
GENERAL PUMP A member of the Interpump Group Set up the complete package without tightening the packing support (1, Fig. 20) but making sure that the pressure packings snap into place. HE SERIES Fit the pumping units (1, Fig. 23) back in the pump after replacing all relevant o-rings. Fit the plunger back in place and tighten the plunger screw (1, Fig 24) with a torque wrench set for 18 ft. lbs. Grease the pressure packings through the greasers (2, Fig. 24) by means of a hand pump.
GENERAL PUMP A member of the Interpump Group 12. TORQUE SPECIFICATIONS Bolt torquing is to be carried out by means of a torque wrench only: DESCRIPTION Ft. Lbs. N-m Kgm. Plunger bolts 18 24.5 2.5 Head Bolts Connecting Rod Screws 144.6 28.9 13. MAINTENANCE TOOLS 196 39.2 20 for disassembling: -cylinder extractor -piston guide oil seal extractor For assembling: - Piston guide oil seal 15.
GENERAL PUMP A member of the Interpump Group 16.
GENERAL PUMP Item Part # 1 F040000130 3 F881013100 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 F871115153 F010100050 F010100040 F871125154 F881080014 F811110002 F063400100 F801053002 F872043001 F801057001 F801053003 F063400120 F080600000 F881011153 F801054002 F071000030 F050000030 F871350002 F812000002 F040400010 F250001090 F872138010 F071000020 F010200170 F010200180 F010200190 26 27 28 29 F010200200 F031000070 F041500030 F031000080 F024201170 F024201180 F024201190 F02420120
GENERAL PUMP A member of the Interpump Group HE SERIES Page 17
GENERAL PUMP Item Part # 1 F040000130 3 F881013100 2 F871115603 4 F010100050 F010100040 5 F871125606 6 F881080014 7 F811110002 8 F063400680 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 F801053002 680079 F801057011 F801053003 F063400670 F080600000 F881011153 F801054002 F071000030 F050000030 F871350002 F812000002 F040400010 F250001090 F872138010 F071000020 F010200170 F010200180 F010200190 26 27 28 29 F010200200 F031000070 F041500030 F031000080 F024201170 F024201180 F024201190 F0
GENERAL PUMP A member of the Interpump Group 17. TROUBLE SHOOTING HE 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 MAINTENANCE LOG A member of the Interpump Group HE 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 310017 Rev.
