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Owner’s Manual 

 
 
 
 
 

 

Instructions for Assembly, Testing, Operation, Servicing, and Storage 

 

Water Pump

: Outdoor agricultural product used for general 

purpose water pumping, field irrigation and trash 
applications.** 

 
 
 

WARNING

 

 

READ and UNDERSTAND the 

Owner’s Manual completely before using this water pump

.  Assemble, 

test, and use only in accordance with the Owner’s Manual instructions. 

 

WEAR personal protective gear when filling, using, cleaning, and servicing the water pump. 

 

 

DO NOT START water pump until ready to spray

 in order to avoid unintentional spray release.

  

 

Improper use of the water pump could result in serious injury or illness to the operator or nearby 
persons/animals, or could cause damage to the environment.

 

 

 
 

**

 This water pump is recommended for use in spraying non-flammable liquids such as water.   

Solids capacity will depend on model. 

 
 
 
 
 
 
 
 

Any Questions, Comments, Problems, or Parts Orders 

Call Powerhorse Product Support 1-866-443-2576 

ITEM NUMBER:

 109270, 109280, 109290

 

 

 

SERIAL NUMBER: _______________

 

MWPG

 

Summary of Contents for 109270

Page 1: ...ar when filling using cleaning and servicing the water pump DO NOT START water pump until ready to spray in order to avoid unintentional spray release Improper use of the water pump could result in serious injury or illness to the operator or nearby persons animals or could cause damage to the environment This water pump is recommended for use in spraying non flammable liquids such as water Solids...

Page 2: ...Hazard Signal Word Definitions 2 ...

Page 3: ...ump for Each Use Step One Inspect Repair 10 Step Two Fueling 11 Step Three Attach a suction strainer 12 Step Four Place the water pump 12 Operation Using the Water Pump 13 Storage 14 Troubleshooting 15 Specifications 16 Water Pump Exploded View 19 109270 Pump Exploded View 20 109280 Pump Exploded View 21 109290 Pump Exploded View 22 Engine Exploded View 23 Engine Operation 26 Engine Maintenance 35...

Page 4: ... safety precautions presented throughout this manual A summary of important safety information can be found at the end of the manual Contact Powerhorse Product Support at 1 866 443 2576 for any questions about the appropriate use of this water pump and or optional accessories Warranty Registration Please fill in the warranty registration information and have it on hand when you call in on a warran...

Page 5: ...ater pump before each use as directed in this manual DO NOT USE flammable or corrosive chemicals in the water pump FOLLOW INSTRUCTIONS for SAFELY FUELING the engine Gasoline is flammable and can explode Always use caution when handling gasoline DO NOT START water pump until ready to spray in order to avoid unintentional release SEE Troubleshooting section of this manual before attempting any repai...

Page 6: ...uct Support at 1 866 443 2576 to order new labels Item 109270 Order Part No 780949 warning decal Item 109280 Order Part No 780950 warning decal Item 109290 Order Part No 786728 warning decal All pumps Order Part No 785261priming plug warning decal ...

Page 7: ...shipped inside the manual bag If you have damaged components Contact the freight company that delivered the unit and file a claim If you have missing components Contact Powerhorse Product Support at 1 866 443 2576 The following items are found in the manual bag Bolts 4 Rubber Feet 4 Nuts 4 ...

Page 8: ...Assembly 8 Attach rubber feet to the base Using a 3 8 socket attach the rubber feet to the base with the bolts and nuts Rubber Foot Base Screw Nut ...

Page 9: ...ort Fill the priming port to prime the pump 3 Discharge Fitting Connect the discharge hose to the discharge fitting 4 Pump The pump moves the liquid 5 Suction Fitting Connect the suction hose to the suction fitting 6 Drain Port Drain the liquid in the pump through the drain port ...

Page 10: ...t the manufacturer s specifications Replacement parts that do not meet specifications may result in a safety hazard or poor operation of the water pump 1 Ensure water pump casing is empty Ensure the water pump has been thoroughly flushed with fresh water and drained from prior use 2 Clean suction strainer Clean the suction strainer of any material residue It is important to clean the suction strai...

Page 11: ... UL approved container Important Safety Instructions Use approved container NEVER pump fuel directly into engine at gas station Static charge can build and ignite fuel Use a UL approved fuel container to transfer gas to the engine Don t overfill DO NOT overfill the gas tank Allow at least 1 2 of empty space below the fill neck to allow for fuel expansion Heat flames sparks Stay away from sources o...

Page 12: ...ure proper pump suction All hoses must be kept as straight as possible avoid sharp bends NOTE 23ft is the maximum height of suction head 2 Use flexible hose Use at least 12 of flexible hose to make plumbing connections to the pump body Rigid piping may put stresses on the pump causing damage 3 Place unit on secure footing Always be sure the unit is on a secure footing Keep the immediate pump area ...

Page 13: ...paces These spaces can trap poisonous gases EVEN if you run a fan or open windows If you start to feel sick dizzy or weak while using the water pump shut off the engine and get to fresh air RIGHT AWAY See a doctor You may have carbon monoxide poisoning 4 Start engine Consult the engine Owner s Manual for starting the engine 5 Throttle control When operating the water pump much higher than the wate...

Page 14: ...n the engine will cause hard starting and leave gum deposits that can clog the fuel system Deterioration problems may occur within a few months or even less if gasoline was not fresh when you filled the fuel tank Short Term Storage Consider adding a fuel stabilizer to extend fuel storage life Long Term Storage between infrequent uses and at end of season Drain the fuel tank and carburetor as instr...

Page 15: ...ing of impeller Disassemble and clean Pump fails to prime 1 Priming chamber not full enough Add more water to priming chamber 2 Air leaks on suction line joints Check for loose screws or broken hoses 3 Quick coupling gaskets worn Replace gaskets 4 Loose or broken hose clamps Tighten or replace hose clamps 5 Priming chamber is over heated Pour cold water in chamber or let cool 6 Engine speed is too...

Page 16: ...00 Flow GPH Total Head ft 109270 2 Semi Trash Engine Powerhorse 208cc Suction Discharge Size 2 NPT Maximum Flow 7860 GPH Maximum Suction Head 23 FT Maximum Total Head 98 FT Maximum Pressure 43 5 PSI Passable Solid Size 5 8 Mechanical Seal Silicon Carbide Overall Dimensions L x W x H 21 5 x 17 6 x 16 7 Dry Weight 60 lbs ...

Page 17: ...0 Flow GPH Total Head ft 109280 3 Semi Trash Engine Powerhorse 208cc Suction Discharge Size 3 NPT Maximum Flow 14 160 GPH Maximum Suction Head 23 FT Maximum Total Head 98 FT Maximum Pressure 43 5 PSI Passable Solid Size 5 8 Mechanical Seal Silicon Carbide Overall Dimensions L x W x H 23 5 x 19 1 x 18 7 Dry Weight 65 lbs ...

Page 18: ...T Maximum Total Head 82 FT Maximum Pressure 36 PSI Passable Solid Size 1 1 8 Mechanical Seal Silicon Carbide Overall Dimensions L x W x H 23 5 x 19 1 x 18 7 Dry Weight 90 lbs The manufacturer reserves the right to make improvements in design and or changes in specifications at any time without incurring any obligation to install them on units previously sold Any Questions Comments Problems or Part...

Page 19: ...All 1 109271 2 Semi Trash Pump 109270 1 4 109281 3 Semi Trash Pump 109280 109291 3 Full Trash Pump 109290 5 786775 Rubber Feet All 4 6 786776 M8 1 25 x 35mm Flange Bolt All 4 786777 M8 Flange Nut 109270 4 7 109280 4 109290 6 780949 109270 Warning Decal 109270 1 8 780950 109280 Warning Decal 109280 786728 109290 Warning Decal 109290 786778 M8 1 25 x 60mm Flange Bolt 109270 4 9 109280 4 109290 6 10 ...

Page 20: ...250 1 4 Mount Bolt 781237 4 21 Inlet Connection Bolt 788866 3 5 Mechanical Seal 781238 1 22 Pump Body Bolt 788865 4 6 Impeller 781239 1 24 Inlet Hose Clamp 781254 1 7 Volute 781240 1 25 Suction Strainer 781255 1 8 Small O ring 781241 1 26 Shaft Bolt 781256 1 9 Pump Body 781242 1 27 Shaft Bolt Washer 788988 1 10 Outlet Seal 781243 1 28 Key 788989 1 12 Outlet Connection Bolt 788864 4 13 Plug O ring ...

Page 21: ...271 1 4 Mount Bolt 781260 4 21 Inlet Connection Bolt 788867 3 5 Mechanical Seal 781261 1 22 Pump Body Bolt 788868 4 6 Impeller 781262 1 24 Inlet Hose Clamp 781275 3 7 Volute 781263 1 25 Suction Strainer 781276 1 8 Small O ring 781264 1 26 Shaft Bolt 781256 1 9 Pump Body 781265 1 27 Shaft Bolt Washer 788988 1 10 Outlet Seal 781266 1 28 Key 788989 1 12 Outlet Connection Bolt 788864 4 13 Plug O ring ...

Page 22: ... 7 Volute 781283 1 8 Impeller 781284 1 9 Springiness Column Pin 784360 1 9 1 Cushion 784361 1 10 Small O ring 781286 1 11 Large O ring 781287 1 12 Pump Cover 781288 1 13 Mechanical Seal 781289 1 14 Suction Hose Barb 781290 1 15 Suction Strainer 781291 1 16 Hose Barb Adaptor 781292 2 17 Large Sealing Washer 781293 2 18 Shaft Bolt 781294 1 19 Sealing Washer 781259 1 20 Spanner 781295 2 24 Hose Clamp...

Page 23: ...Engine Exploded View 23 ...

Page 24: ...Rocker assembly N A 2 18 Dipstick Assembly N A 1 58 Plate rush rod guide N A 1 19 Oil Plug N A 1 59 Cap N A 1 20 Bolt N A 6 60 Seat valve spring in N A 1 21 Camshaft Assembly N A 1 61 Retainer Exhaust Valve Spring N A 1 22 Lifter Valve N A 2 62 Spring valve N A 2 23 Rod push N A 2 63 Valve in N A 1 24 Air leading cover N A 1 64 Valve ex N A 1 25 Shaft Governor Arm N A 1 65 Returner Intake valve N ...

Page 25: ...Description Part Qty 1 Air Cleaner Kit 786729 1 2 Carburetor Kit 786730 1 3 Drain Bolt Kit 783126 1 4 Muffler Kit 786732 1 5 Valve Cover Kit 786731 1 6 Ignition Coil Kit 786735 1 7 Tank Kit 786733 1 8 Recoil Assembly Kit 786734 1 ...

Page 26: ...Engine Operation 26 CAUTION This engine is shipped without oil If you start the engine without oil the engine will be damaged beyond repair and will not be covered under warranty ...

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Page 46: ...arts Components not manufactured by Powerhorse are guaranteed by their manufacturer and can be serviced at factory authorized locations near you Any costs incurred due to replacement or repair of items outside of a Powerhorse approved facility is the responsibility of the buyer and not covered under warranty Powerhorse can supply you with the service center location in your area This warranty spec...

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Page 48: ...48 Distributed by Northern Tool Equipment Co 2800 SouthCross Drive West P O Box 1499 Burnsville MN 55337 0499 Made in China ...

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