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SP0 & SP1 Knapsack Sprayer 

  

 

  

   

We would like to congratulate you on the purchase of your new SP0.  The 

sprayer that allows you the easiest, most comfortable way of carrying out your 
farm, garden, etc. projects with the revolutionary piston diaphragm pump 
(patented), that all but eliminates the problems inherent in most sprayers. As a 
new owner of the skillfully engineered SP0, we strongly recommend you carefully 
read and follow all the information.   

   

HOW TO ASSEMBLE: 

  

   

1.  Attach spray wand to spray gun and tighten firmly.   
2.  Take pump handle Kit 7 (solid) and insert into the tube on the pump lever 

Kit 5 (“T” shape lever on sprayer) you will notice holes drilled through both 
sides of both the pump handle and the pump lever.  Align these holes; 
take the “R” pin provided and place through the holes.  This affixes the 
handle in place and is ready for use.  For storage reverse process and 
then place “R” pin through the pump lever Kit 5 to keep from losing “R” 
pin.   

3.  Instructions for installing shoulder strap plastic buckle:  First put the 

sprayer on a hard flat surface, take the white plastic buckle and while 
holding the sprayer up slightly, place buckle under the tubular metal 
frame.  Slowly push down forcing the frame into the buckle.  Repeat the 
same procedure for the other side.    

   

HOW TO PREPARE FOR USE: 

  

   

1.  Remove cap.   
2.  Mix solution in a separate receptacle, following manufacturer's directions 

on the container.   

3.  Pour pre-mixed solutions into sprayer and cap.   
4.  Place sprayer on back and pressurize tank by pumping approximately 10 

to 15 times.  For best results, the sprayer should be pumped every 5 
seconds on a continuous basis.  This will maintain your spraying pressure.  
If you do not pump, you will not have pressure to spray.    

5.  Always oil the seal on cap of unit as well as the check valve, this will 

extend life of seal and is important for obtaining proper seal with no leaks.   

6.  A unit that has been used with herbicides should never be used to spray 

insecticides, unless the sprayer has been properly cleaned and all other 
chemicals neutralized.  Failure to do this could cause you to kill plants that 

Summary of Contents for SP0

Page 1: ... Instructions for installing shoulder strap plastic buckle First put the sprayer on a hard flat surface take the white plastic buckle and while holding the sprayer up slightly place buckle under the tubular metal frame Slowly push down forcing the frame into the buckle Repeat the same procedure for the other side HOW TO PREPARE FOR USE 1 Remove cap 2 Mix solution in a separate receptacle following...

Page 2: ...h use make sure all connections are well tightened Service and replace worn parts as required Read and follow all instructions of the chemical suppliers As a rule mix your chemicals in a separate container from which to fill the sprayer Do not mix formulas inside the sprayer When an exception is made e g with liquid fertilizers fill sprayer with water BEFORE adding the active ingredient Always sif...

Page 3: ... or there is an air lock in the unit because of differences of pressure Note this is not uncommon SOLUTION S Squeeze trigger on spray gun to release air and pump profusely several times This will break the seals and allow fluid to pass PROBLEM 2 A B C D When you squeeze the trigger on the spray gun it sticks and is slow in returning to the shut off position when you release trigger CAUSES S These ...

Page 4: ...very tight Unit should be ready to operate 2 Tighten the nut at the top of the pump module with the small wrench provided 3 If cap is tightened replace washer in siphon nut hose assembly 4 If pump module is cracked replace with spare parts available on our website Click here for SPO breakdown http mkrittenhouse com ca backpack sprayer sp0 parts http mkrittenhouse com us backpack sprayer sp0 parts ...

Page 5: ...e passage of fluid PROBLEM 8 A B Unit falls onto its side and leaks through the center of the cap where the check valve is CAUSE S Deteriorated check valve or could be dusty or have some dirt or foreign matter SOLUTION S Pull check out If deteriorated replace If not clean out Place a small drop of oil and reinstall PROBLEM 9 A Unit is leaking from the area just below where the large metal or plast...

Page 6: ... This will allow air into the tank and release the vacuum Take cap off clean vent hole clean check valve oil valve reinstall PROBLEM 12 C B Pump module on SVV stainless when you are pumping your unit some fluid is com ing back up thro ugh the pump CAUSE S The small plug at the top of the pump module has deteriorated due to chemical attack SOLUTION S Pull out the small check antenna with o ring and...

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