MSS Owner’s Manual • Installation • Use • Maintenance Note: Photo shows MSS pump with hydraulic drive. General Pump is a member of the Interpump Group 8 Ref 300522 Rev.
GENERAL PUMP 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. A member of the Interpump Group MSS SERIES INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3 SYMBOL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3 SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 3.1 General warnings for safe operation . . . . . . .
GENERAL PUMP 1. INTRODUCTION A member of the Interpump Group MSS high pressure water plunger pumps have been designed for long life industrial duties 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 MSS 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 6. DIMENSIONS AND WEIGHT - WITH HYDRAULIC DRIVE MSS SERIES Ref 300522 Rev.
GENERAL PUMP A member of the Interpump Group 7. GENERAL INFORMATION ABOUT PUMP USE MSS SERIES 8. CONNECTIONS AND PLUGS The MSS pump has been designed to pump fresh filtered water at room temperature. MSZ and MSN 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 M12 threaded feet. The base should be rigid enough to avoid any misalignment or flexing of the pump/transmission coupling axis due to the torque involved during operation. On no account should the pump be installed in such a way its fluid end rests on the base where the pump is mounted. The fluid end should be left free and not subjected to any force.
GENERAL PUMP A member of the Interpump Group MSS SERIES 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 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 on a weekly basis by means of the two oil dipsticks (1, Fig 8) provided with notches for min and max levels. MSS 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. In order to remove the valves: Loosen and remove the valve cover screws (1, Fig. 9).
GENERAL PUMP A member of the Interpump Group MSS SERIES Should excessive scaling inside the fluid end hinder the valve extraction open one of the two lateral inlet ports, remove the three plugs, Fig. 15, insert our special tool p/n F200000050 (or a corresponding one) and push the valve unit out as shown in Fig. 15. Check the valve components for wear and replace where necessary. Every time valves are inspected, all o-rings and valve covers should be replaced.
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. 16). MSS SERIES Loosen and remove the plunger screws (1, Fig. 18). 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.
GENERAL PUMP A member of the Interpump Group MSS SERIES With the tool in place, rotate the crankshaft until the packing support is pushed out together with plungers and cylinders (Fig. 21 and Fig. 22). Separate the pumping unit components and check them for wear. Pressure packing replacement is carried out by hand without need for special tools (Fig. 24). A little bit of grease helps slide the packings into the packing support.
GENERAL PUMP A member of the Interpump Group 12. SCREW CALIBRATION Screw calibration is to be carried out by means of a torque wrench only: DESCRIPTION Ft. Lbs. Head Bolts Connecting Rod Screws Valve cover screws Plunger bolts N-m Kgm. 180.8 245.1 25 54.2 73.5 86.7 72.3 13. MAINTENANCE TOOLS 117.6 98 12 10 7.
GENERAL PUMP A member of the Interpump Group 16. EXPLODED VIEW AND PARTS LIST MSS SERIES Ref 300522 Rev.
GENERAL PUMP Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Part # Description F060100460 Gear box housing, 2200 RPM F060100240 F872047005 F871125108 F052000100 F052000120 F052000280 F030000090 F871125105 F872126004 F871125110 F010100100 F871125154 F871125153 F063100190 F881010131 F881080026 F811110010 F063100150 F080600140 F872097009 F872097013 F052000110 F052000131 F052000180 F052000210 F052000270 20 21 22 23 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 5
GENERAL PUMP MSZ MSN A member of the Interpump Group MSZ/MSN SERIES STAINLESS STEEL Ref 300522 Rev.
GENERAL PUMP Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Part # Description F060100460 Gear box housing 2200 RPM F060100240 F872047005 F871125108 F052000100 F052000120 F052000280 F030000090 F871125105 F872126004 F871125709 F010100100 F871125606 F871125605 F063100190 F881010131 F881080026 F811110010 F063100150 F080600140 F872097009 F872097013 F052000110 F052000130 F052000180 F052000210 F052000270 20 21 22 23 24 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
GENERAL PUMP A member of the Interpump Group 17. TROUBLE SHOOTING MSS 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 MSS 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 300522 Rev.
