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Electric Hydraulic Piston Pump
Mod.
MASPRA HP-41
WARNING!!! Read all instructions carefully before assembling components and oper-
ating sprayer. Incorrect procedure could result in damage to the unit, severe personal
injury and/or property damage. When spraying flammable materials, sprayer must be
placed at least 20 feet from target in a well-ventilated area. Vapours can be ignited by
static discharge or electrical sparks and result in severe personal injury. Airless sprayers
generate high fluid pressure. Improper use could result in an injection injury.
SERVICE MANUAL
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Related Manuals for MASPRA HP-41
Summary of Contents for MASPRA HP-41
- Page 1 SERVICE MANUAL Electric Hydraulic Piston Pump Mod. MASPRA HP-41 WARNING!!! Read all instructions carefully before assembling components and oper- ating sprayer. Incorrect procedure could result in damage to the unit, severe personal injury and/or property damage. When spraying flammable materials, sprayer must be placed at least 20 feet from target in a well-ventilated area.
- Page 2 HP-41 I N D E X D E S C R I P T I O N O F S Y M B O L S ..........3 S A F E T Y P R E C A U T I O N S ..
- Page 3 HP-41 1. Description of symbols The signs and symbols used in this manual have the following meaning: NOTE marks a section of text which is especially relevant to safety. Special attention should be paid to this section and its contents strictly observed.
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Page 4: Safety Precautions
HP-41 2. Safety Precautions WARNING! 1. Injection hazard: Injection hazard: Airless Painting Equipment can cause serious injury if the spray penetrates the skin. Do not point the gun at anyone or any part of the body. The tip guard provides some protection against accidental injection injuries, but is mostly awarning device. - Page 5 HP-41 18. Conductive metal containers must be used when flushing flammable fluids through the system. Always flush at low pressure with spray tip removed. A metal partof the spray gun must be held firmly against the grounded metal pail when flushing or relieving pressure from the gun.
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Page 6: Technical Specification
- Compact paint pump owned. - Quick cleaning Your MASPRA hydraulc airless piston pump is ca- pable of spraying a wide variety of latex, oil-based HOW HYDRAULIC PISTON PUMPS OPERATE: and alkyd paints, as well as stains, preservatives,... -
Page 7: Pump Components
HP-41 5. Pump Components SPRAY GUN PAINT PUMP: The spray gun is designed specifically for airless spraying. The paint pump is a cylinder connected to the Since there is no compressed air to atomize the paint, at- hydraulic reverse section. The paint cylinder is composed omization is accomplished by forcing the paint at a very by a piston, upper &... - Page 8 HP-41 6. Setting up of unit for Airless Spraying PROCEDURE 4. Attach return hose or return tube to the dump 1. Remove all system components from the box valve. for assembly. 5. Connect high pressure airless paint hose to 2. Remove all protective caps from inlet and outlet pump outlet.
- Page 9 HP-41 7. How to select tip and proper filter Tip and filter table with specifications concerning capacity at different pressures (lt. minute) with water. Notice: For each tip size please choose between the following fan corners: CAPACITY MEASURED IN LT/MIN.
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Page 10: Start-Up Procedures
HP-41 8. Startup procedures Priming Unit in Paint Whenever the pump is to be used, it must be pre- Follow same procedure as steps 1 - 8 of “Priming pared for the type of paint to be used. This requires and Flushing”, but instead using paint. - Page 11 HP-41 9. Hints for Airless Sprayer WARNING: DO NOT BEGIN SPRAYING BEFORE READING THIS SECTION AND ALL PREVIOUS SAFETY INFOR- MATION. Painting and Tip Selection Correct adjustment of pressure and proper tip selection are crucial to the best spray pattern..
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Page 12: Hydraulic Oil
HP-41 10. Helpful hints for trouble free painting HYDRAULIC OIL: Sprayer 1. Check oil regularly. If level is reduced, fill up 1. Flush before each use with a solvent that is cor- with hydraulic oil. rect for the paint you will be spraying. ie: Water 2. -
Page 13: Cleaning Instructions
HP-41 11. Cleaning instructions 6. Unlock trigger, and with spray tip still removed and start- As with all spray equipment, your sprayer must be cleaned ing with minimum pressure, aim gun into paint container properly or it will not operate properly. Clogged valves and... - Page 14 HP-41 Cleaning instructions 14. Coil up electrical cord and spray hose, 10. Ensure pressure control is turned to minimum inspecting both for signs of damage. Suggested and all pressure is released. Open dump valve. minimum coil size for 1/4” paint hose is 18 Turn pump OFF.
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Page 15: Maintenance And Service
HP-41 12. Maintenance & Service LOWER PACKINGS: PAINT HOSE: No regular service required. Periodically inspect the paint hose. If the hose is kinked, The lower packings of these units are mobile, i.e. they cut, or worn, it must be replaced . It cannot be moves together with the piston. -
Page 16: Hydraulic System
HP-41 12. Maintenance & Service siphon hose coupling are properly sealed. Any air HYDRAULIC SYSTEM leakage will produce erratic operation of pump 1. The hydraulic fluid have to be at the middle of and may damage the system.The up and the down the indicator, which is on the back of the pump. - Page 17 HP-41 12. Maintenance & Service UPPER PACKING OUTLET VALVE & LOWER PACKING 1. Disconnect the pump and put it in horizontal 1. Disconnect the pump and put it in horizontal position. position. 2. Unscrew with the proper wrench and remove, 2.
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Page 18: Troubleshooting
HP-41 13. Troubleshooting Provided you have followed the instructions, the sprayer will operate efficiently and give trouble-free service. Should any unexpected problem arise you can, in most cases, remedy the problem by following the chart below. If you find that you cannot correct the problem, then take the sprayer to your nearest authorized service agency. Many of the “causes”... - Page 19 HP-41 13. Troubleshooting - Spray patterns PROBLEMS CAUSES REMEDIS TAILS a. Increase fluid pressure. Change to smaller tip orifice size. Reduce fluid a. Inadequate fluid delivery. viscosity. Reduce hose lenght b. Fluid not atomizing correctly. b. Clean gun and filter(s). Reduce number of guns using pump.
- Page 20 HP-41 13. Troubleshooting - Hydraulic section PROBLEMS CAUSES REMEDIS Oil motor stalls at bottom. a. Inversion valve is blocked a. Push the reset valve (No unusual heat problems.) a. Inversion valve is blocked a. Push the reset valve b. Broken spring retainer (valve rod b.
- Page 21 HP-41 13. Troubleshooting - Fluid Section PROBLEMS CAUSES REMEDIS Pump delivers on a. Lower foot valve ball is not seating a. Remove inlet valve assembly. upstroke only or goes due to trash or wear. Clean and inspect. Test inlet valve by up slowly and down filling with water;...
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Page 22: Spare Parts List
GEMINI GmbH HP-41 Rheinstrasse 7 - DE-88046 Friedrichshafen TEL. +49 7541 98156-15 - FAX. +49 7541 98156-25 WEB: www.gemini-airless.de - E-MAIL: info@gemini-airless.de HP-41 Model: Last update: 05/2024 Part no.: SPAREPARTS LIST - 1 - Technical data subject to chance without noti ce... - Page 23 HP-41 Rheinstrasse 7 - DE-88046 Friedrichshafen TEL. +49 7541 98156-15 - FAX. +49 7541 98156-25 WEB: www.gemini-airless.de - E-MAIL: info@gemini-airless.de HP-41 Last update: 05/2024 Model: Part no.: SPAREPARTS LIST Pumping part HP-41 Pos. Ref. Description Q.ty Pos. Ref. Description Q.ty...
- Page 24 GEMINI GmbH HP-41 Rheinstrasse 7 - DE-88046 Friedrichshafen TEL. +49 7541 98156-15 - FAX. +49 7541 98156-25 WEB: www.gemini-airless.de - E-MAIL: info@gemini-airless.de HP-41 Model: Last update: 05/2024 Part no.: SPAREPARTS LIST - 3 - Technical data subject to chance without noti ce...
- Page 25 Half-joint Motor MA-HP41-B#7 Electric Motor HP 3 - 230V /50 Hz MA-HP41-B#8 MA-HP41-B#9 Washer MA-HP41-B#10 Schnoor Washer MA-HP41-B#11 Bolt MA-HP41-B#12 Connecting Hose MA-HP41-B#13 Pump Support Kit HP-41 13.1 MA-HP41-B#13.1 Pump Support 13.2 MA-HP41-B#13.2 13.3 MA-HP41-B#13.3 Bolt 13.4 MA-HP41-B#13.4 Pump Support MA-HP41-B#14...
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Page 27: Warranty
Technical data subject to change without notice WARRANTY We appliance on this product a period of guarantee of 12 months from the date written on the invoice, un- less otherwise stated in writing. The warranty covers all manufacturing faults and material defects. Replace- ments and repair operations are covered only if carried out by our company and at our servicing shops. - Page 28 GEMINI GmbH Rheinstrasse 7 DE-88046 Friedrichshafen +49 7541 98156-15 +49 7541 98156-25 info@gemini-airless.de www.gemini-airless.de...
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