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Operation – Using the Water Pump

 

 

12

Operate the water pump 

 

1.  Review safety 

information 

Review the “Operation – Important Safety Information”

 provided in this manual. 

2.  Priming 

Using the priming port on the top of the pump, completely fill the pump chamber 
with water before starting the engine.

 

3. Engine operation 

precautions 

Heed the following safety rules with regard to running the water pump engine: 

• 

Hot muffler

.  If you are starting a warm engine, stay clear of muffler.  It may still 

be hot enough to burn you.

 

• 

Hot exhaust

.  Hot exhaust fumes from engine can cause fire.  Position muffler at 

least 7’ from combustible objects during operation.

 

• 

Fire extinguisher

. Have a Class B fire extinguisher available as a precautionary 

measure when operating the water pump engine in dry areas.

 

• 

Carbon monoxide.

 The running engine gives off carbon monoxide, a poisonous 

gas that can kill you.  You CANNOT smell it, see it, or taste it.  ONLY run the 
water pump engine OUTDOORS and away from air intakes.  NEVER run the 
water pump engine inside homes, garages, sheds, or other semi-enclosed spaces.  
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 water surface, you may need 
to speed up the engine, using the throttle.  When the pump is near the water surface, 
a slower engine speed can be used.  This will save engine fuel and life. 
 
Consult the engine Owner’s Manual for throttle location. 
 

6.   Secure flexible 

hose 

Never allow a vehicle to run over the flexible hose

.  This sudden shut off pressure 

can cause “hydraulic shock”.   
 
If your flexible hose must be laid across a high traffic area, it is advised to protect the 
flexible hose with planking. 

 

7.   Keep pump 

from freezing 

Never allow water to freeze in the pump.

  Freezing water can be extremely 

dangerous to the pump, always drain the water from the pump if freezing 
temperatures are a factor. 
 

8.  Flush the pump 

Flush the pump with fresh water after each use is advised.

  Some liquids being 

pumped may leave a solid or sticky residue.  This may shorten the life of your pump. 
 

 

Summary of Contents for M109271D

Page 1: ...ing 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 il...

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

Page 3: ...ration Preparing the Water Pump for Each Use Step One Inspect Repair 9 Step Two Fueling 10 Step Three Attach a suction strainer 11 Step Four Place the water pump 11 Operation Using the Water Pump 12 S...

Page 4: ...A summary of important safety information can be found at the end of the manual Contact Product Support at 1 800 270 0810 for any questions about the appropriate use of this water pump and or optional...

Page 5: ...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 repairs Wear personal protectiv...

Page 6: ...four 4 supplied pump mount bolts and four 4 supplied pump sealing washers fasten the pump cover to the engine Ensure the mechanical seal is securely installed in the pump cover Step 2 Attach Impeller...

Page 7: ...3 Insert O rings volute and pump body Insert the large o ring onto the pump cover and the small o ring onto the volute Place the volute inside the pump body while aligning the tabs on the volute with...

Page 8: ...ime the pump 2 Discharge Fitting Connect the discharge hose to the discharge fitting 3 Pump Casing Contains the water in the pump 4 Suction Fitting Connect the suction hose to the suction fitting 5 Dr...

Page 9: ...nufacturer 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 pum...

Page 10: ...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...

Page 11: ...re 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 plu...

Page 12: ...aces 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...

Page 13: ...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 th...

Page 14: ...ng of impeller Disassemble and clean 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 gask...

Page 15: ...ed shaft with 5 16 24 tapped hole on end and 2 7 16 length Engine Horsepower Required 5 5 Hp Dry Weight 16 lbs 109271 109273 109274 2 Semi Trash Suction Discharge Size 2 NPT Maximum Flow 9510 GPH Maxi...

Page 16: ...16 length 109293 M14 1 5 threaded shaft with 5 16 24 tapped hole on end and 2 7 16 length Engine Shaft Requirements 109294 5 8 18 threaded shaft with 5 16 24 tapped hole on end and 2 7 16 length Engin...

Page 17: ...l 8 781241 Small O ring 1 All 9 781242 Pump Body 1 All 10 781243 Outlet Seal 1 All 11 781244 Connection Washer 7 All 12 781245 Outlet Connection Bolt 4 All 13 781246 Plug O ring 2 All 14 781247 Drain...

Page 18: ...l 8 781264 Small O ring 1 All 9 781265 Pump Body 1 All 10 781266 Outlet Seal 1 All 11 781244 Connection Washer 7 All 12 781245 Outlet Connection Bolt 4 All 13 781267 Plug O ring 2 All 14 781268 Drain...

Page 19: ...lve 1 All 7 781283 Volute 1 All 8 781284 781900 781902 Impeller 1 109291 109293 109294 9 781285 Column Pin 2 All 10 781286 Small O ring 1 All 11 781287 Large O ring 1 All 12 781288 Pump Cover 1 All 13...

Page 20: ...20 This page has intentionally been left blank...

Page 21: ...ty Northern Tool Equipment can supply you with the service center location in your area This warranty specifically excludes the following failure of parts due to damage caused by accident fire flood w...

Page 22: ...22 2800 SouthCross Drive West P O Box 1499 Burnsville MN 55337 0499...

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