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CONTENTS 

Introduction ................................. 1 

Maintenance .................................... 8 

Assembly ..................................... 2 

Troubleshooting .............................. 8 

Nozzle selection .......................... 2 

To replace the piston seal ................ 9 

Strap adjustment .......................... 3 

Trigger valve maintenance ............. 10 

Calibration ................................... 3 

Accessories .................................... 11 

Mixing and filling ....................... 5 

Parts diagrams ........................... 12-13 

Spraying ...................................... 6 

Parts list .......................................... 14 

After spraying ............................. 7 

Calibration working sheet .............. 15 

 

INTRODUCTION 

 
The 

SA15

 is a quality  knapsack sprayer suitable for a  wide range of agricultural and 

horticultural  uses.  The  sprayer  is  designed  to  be  robust  and  easy  to  maintain  and 
features  an  internal  piston  pump  and  pressure  cylinder  for  maximum  protection, 
comfortable  shoulder  straps, a  waist  strap  for  ease  of  extended  use,  a  wide  neck  and 
filter for safety of filling operations and a 15 litre tank designed so that it is held away 
from  the  operator's  back  for  both  increased  safety  and  comfort.  The  sprayer  can  be 
used with either right or left hand lever. 
 
Designed  for  the  application  of  herbicides,  insecticides  and  fungicides  the  sprayer  is 
supplied with a range of nozzles suitable for most spray operations. 
 
This manual is designed to help you get the most from your 

SA15 

Sprayer and 

MUST 

BE READ 

before using the sprayer for the first time 

 
When the 

SA15 

is new it needs to be unpacked and assembled for use. Check that you 

have all the components as shown below. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 

Summary of Contents for SA15

Page 1: ...SA15 SA15 SA15 SA15 KNAPSACK SPRAYER KNAPSACK SPRAYER KNAPSACK SPRAYER KNAPSACK SPRAYER Instruction Manual Instruction Manual Instruction Manual Instruction Manual ...

Page 2: ...inder for maximum protection comfortable shoulder straps a waist strap for ease of extended use a wide neck and filter for safety of filling operations and a 15 litre tank designed so that it is held away from the operator s back for both increased safety and comfort The sprayer can be used with either right or left hand lever Designed for the application of herbicides insecticides and fungicides ...

Page 3: ...ozzle is used to ensure that good coverage is obtained with the minimum amount of uncontrolled spray drift Different nozzles will give different spray patterns and droplet sizes Before using the sprayer for the first time it is advisable to fill the tank half full with water and pump the system through with no nozzle fitted to remove any debris which could cause nozzle blockage The SA15 is supplie...

Page 4: ...STMENT With the sprayer on your back and filled as if ready to spray adjust the length of the straps for comfort as shown For maximum comfort use the waist strap as shown If the straps are correctly adjusted the sprayer should fit comfortably on your back with the weight resting on your hips CALIBRATION Before using the SA15 the sprayer should be calibrated using water This is important as accurat...

Page 5: ...meters m by spraying on dry ground or concrete and measuring the width of the spray pattern produced It is important that the nozzle height from the ground is the same during spraying If spraying one row at a time this will be the distance between the rows Flow Rate l min Calibration steps 1 Select nozzle 2 Measure Flow Rate in l per minute l min by measuring sprayer output while pumping over one ...

Page 6: ...Always wash off any Always clean all skin contamination equipment after use When filling the tank always make sure that the filter is fitted This is important to prevent nozzle blockage Half fill the tank with water then measure and add the chemical as directed on the product label Then add more water as necessary Take care not to splash when filling the sprayers If using powders e g many fungicid...

Page 7: ...rousers a long sleeved shirt boots gloves and eye protection are worn The best time to spray is early in the morning or late in the afternoon The temperature and humidity are lower at these times of the day Avoid spraying at mid day as the weather is usually hot and dry at this time Do not spray if rain is expected soon Ensure that there are no people or animals present when you are spraying Warn ...

Page 8: ...t as this will damage seals and washers Store the sprayer in a safe place out of direct sunlight and away from children and animals After spraying wash your hands face and cloths especially prior to eating drinking or smoking Always hold the spray lance on the downwind side of you do not spray into the wind If the nozzle becomes blocked clear it with a piece of grass DO NOT blow through it Store c...

Page 9: ...prayer appears to be losing pressure if it seems that you need more pump strokes to maintain a constant output check the piston seal for signs of wear and replace if necessary see TOREPLACETHEPISTONSEAL TROUBLESHOOTING PROBLEM CAUSE REMEDY No pressure or reduced or intermittent pressure Piston seal worn or demaged Replace piston seal see TO REPLACE THE PISTON SEAL Brass ball dirty or corroded Repl...

Page 10: ... O 29 8438 Valve O 30 8439W Rubber Disk O 31 8440IM Trigger O Ring O 32 8440BR Brass Spindle O 33 8441J Trigger Body 34 8441J 113 Trigger complete with 100 mesh filter 35 8442B Trigger Pin O 36 8443B 12 Lever Assy 37 8445W1 Washer for Spray Lance O 38 8445W2 Washer for nozzle O 39 8446GR GRP 14 GRP Spray Lance 50cm with Elbow Washer 40 8447W Washer for trigger O 41 8455SS 51INC PVC Hose 42 8458M 1...

Page 11: ...er or similar to unscrew the slotted nut which retains the seal as shown Take great care that the brass ball does not drop out Check the brass ball for signs of pitting and replace if necessary The old piston seal can be easily removed and replaced Smear a small amount of grease or oil around the piston seal to aid re assembly Replace the piston seal and tighten the slotted nut connection ensuring...

Page 12: ...need replacing To replace the o ring seal on the plunger first remove the trigger handle by removing the locking pin Using a pair of piers to grasp the top of the plunger remove it as shown and replace the o ring To replace the shut off seal remove the spring retention cover and withdraw the spring and seal The seal can be easily replaced if necessary With time the spring tension on the trigger va...

Page 13: ...lead to off target spray drift If the CFV is correctly installed see Fitting The CFV pumping will be easier as fewer strokes will be needed to maintain pressure Pump only two or three strokes before opening the trigger valve to commence spraying One or two pump strokes every few steps will automatically maintain a constant flow at the correct pressure GRP Lance GRP Lance of 50 cm length is provide...

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Page 15: ...14 ...

Page 16: ... 24 8428M Pull Bar 25 8429S Pin 26 8435C Trigger Cover 27 8436W Washer for trigger 28 8437S Spring 29 8438 Valve 30 8439W Rubber Disk 31 8440IM Trigger O Ring 32 8440BR Brass Spindle 33 8441J Trigger Body 34 8441J 113 Trigger complete with 100 mesh filter 35 8442B Trigger Pin 36 8443B 12 Lever Assy 37 8445W1 Washer for Spray Lance 38 8445W2 Washer for nozzle 39 8446GR GRP 14 GRP Spray Lance 50cm w...

Page 17: ...ons Fill in the boxes and transfer this information as shown FLOW RATE MEASURED WALKING SPEED MEASURED SWATH WIDTH MEASURED TOTAL SPRAY VOLUME Number of knapsack loads Needed per hectare Volume of product needed Per hectare from product Label Volume of product ml Needed per knapsack ...

Page 18: ...ar No 131 4 Banjarmasin Kalsel Tel 62 511 3253657 3255178 Fax 62 511 3255177 Jakarta PT AGROTAMA TUNAS SARANA Pergudangan Prima Center Blok B no 12 Jl Pesing Poglar Kedaung Kali Angke Jakarta Barat Telp 62 21 54367398 PT SAHABAT AGRITAMA Jln Gunung Sahari Raya No 1 Blok B1 2 Jakarta 10720 Tel 62 21 6594011 6006420 6281245 Fax 62 21 6594005 6493373 Jambi CV SUMBER CAHAYA TEKNIK Jln Gajah Mada Ruko ...

Page 19: ...ucipto Km 4 5 Ruko Serba Guna No 7 Pontianak Kalbar Tel 62 561 736198 Fax 62 561 739718 Samarinda PT SAHABAT AGRO MANDIRI Jln Ahmad Yani Komp Cendrawasih Permai Blok A No 48 Samarinda Kaltim Tel 62 541 7242913 7250098 Fax 62 541 7250098 Sampit PT AGRITAMA MULTI SARANA Jln Manggis 2 No 15 Sampit Kalteng Tel 62 531 33187 Surabaya CV SAHABAT MOTOR Komp Pertokoan Semarang Indah Permai Jln Semarang B2 ...

Page 20: ...Sdn Bhd 627487 D No 44 Lorong Sanggul 1E Bandar Puteri Klang 41200 Klang Selangor D E Malaysia Tel 60 3 51625746 51625745 Fax 60 3 51615741 E mail rbst streamyx com www rbfield com YOUR KEY TO SMART TECHNOLOGY REV03 ...

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