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                   TECHNICAL INFORMATION Sprayer Calibration
113
  Broadcast Application
Sprayer calibration (1) readies your sprayer for operation and (2) diagnoses tip wear. This will give you optimum performance o o f f y y o o u u r r T Te e e e J J e e t t ® ® t t i i p p s s . .
Equipment Needed:
n TeeJet Calibration Container
n Calculator
n TeeJet Cleaning Brush
n One new TeeJet Spray Tip matched to the nozzles on your sprayer n Stopwatch or wristwatch with second hand
STEP NUMBER 1
Check Your
Tractor/Sprayer Speed!
K K n n o o w w i i n n g g y y o o u u r r r r e e a a l l s s p p r r a ay y e e r r s s p p e e e e d d i i s s a a n n e e s s s s e e n n t t i i a a l l p p a a r r t t o o f f a a c c c c u u r r a a t t e e s s p p r r a ay y i i n n g g . . Speedometer readings and some electronic measurement devices can be inaccurate because of wheel slippage. Check the time required to move over a 100- or 200-foot strip on your field. Fence posts can serve as permanent markers. The starting post should be far enough away to permit your
t tractor/sprayer to reach desired spraying speed. Hold that speed as you travel between the “start” and “end” markers. Most accurate measurement will be obtained with the spray tank half full. Refer to the table on page 173 to calculate your real speed. When the correct throttle and gear settings are identified, mark your tachometer or speedometer to help you control t t h h i i s s v v i i t t a a l l p p a a r r t t o o f f a a c cc c u u r r a a t t e e c c h h e e m m i i c c a a l l a a p p p p l l i i c c a a t t i i o o n n . .
STEP NUMBER 2
The Inputs
Before spraying, record the following: EXAMPLE
N N o o z z z z l l e e t t y y p p e e o o n n y y o o u u r r s s p p r r a a y y e e r r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T T T T 1 11 1 0 0 0 0 4 4 F F l l a a t t ( ( A A l l l l n n o o z z z z l l e e s s m m u u s s t t b b e e i i d d e e n n t t i i c c a a l l ) ) S S p p r r a ay y T T i i p p
Recommended application volume . . . . . . . . . . . . . . . . . . . . . . .20 GPA (From manufacturer’s label)
Measured sprayer speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 MPH Nozzle spacing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Inches
STEP NUMBER 3
Calculating Required
  Nozzle Output
D D e e t t e e r r m m i i n n e e G G P PM M n n o o z z z z l l e e o o u u t t p p u u t t f f r r o o m m f f o o r r m m u u l l a a . .
F FORMULA:
EXAMPLE: ANSWER:
G G P P M M
= =
G G P PA A x x M M P P H H x x W W 5,940 (constant)
 = = 0.404 GPM
2 2 0 0 x x 6 6 x x 2 2 0 0 5,940
= =
2 2 , , 4 4 0 0 0 0 5,940
G G P PM M
 STEP NUMBER 4
Setting the Correct Pressure
     Grimes, IA 800-351-1587
Banding and
Directed Applications
T T h h e e o o n n l l y y d d i i f f f f e e r r e e n n c ce e b b e e t t w w e e e e n n t t h h e e a a b b o o v v e e p p r r o o c ce e d d u u r r e e a a n n d d c c a a l l i i b b r r a a t t i i n n g g f f o o r r b a n d i n g o r d i r e c t e d a p p l i c a t i o n s i s t h e i n p u t v a l u e u s e d f o r “ W ” i n t h e f f o o r r m m u u l l a a i i n n S St t e e p p 3 3 . .
For single nozzle banding or boomless applications:
W W = = S S p p r r a a y y e e d d b b a a n n d d w w i i d d t t h h o o r r s s w w a a t t h h w w i i d d t t h h ( ( i i n n i i n n c c h h e e s s) ) . .
For multiple nozzle directed applications:
W = Row spacing (in inches) divided by the number
o o f f n n o o z z z z l l e e s s p p e e r r r r o o w w. .
• Gardner, KS 877-829-8502 • Brimfield, IL 855-778-8500
TECHNICAL INFORMATION
113
T Tu u r r n n o o n n y y o o u u r r s s p p r r a a y y e e r r a a n n d d c c h h e e c c k k f f o o r r l l e e a a k k s s o o r r b b l l o o c c k k a a g g e e . . I I n n s s p p e e c c t t a a n n d d c c l l e e a a n n , , i i f f n n e e c c e e s s s s a a r r y y, , a a l l l l t t i i p p s s a a n n d d s s t t r r a a i i n n e e r r s s w w i i t t h h T Te e e e J J e e t t b b r r u u s s h h . . R R e e p p l l a a c c e e o o n n e e t t i i p p a a n n d d strainer with an identical new tip and strainer on sprayer boom.
Check appropriate tip selection table and determine the pressure required to deliver the nozzle output calculated from the formula in
S St t e e p p 3 3 f f o o r r y y o o u u r r n n e e w w t t i i p p . . S S i i n n c c e e a a l l l l o o f f t t h h e e t t a a b b u u l l a a t t i i o o n n s s a a r r e e b b a a s s e e d d o o n n s s p p r r a ay y i i n n g g water, conversion factors must be used when spraying solutions that are h h e e a a v v i i e e r r o o r r l l i i g g h h t t e e r r t t h h a a n n w w a a t t e e r r ( ( s s e e e e p p a a g g e e 1 17 74 4 ) ) . .
Example: (Using above inputs) refer to TeeJet table on page 9 for T T T T 1 11 1 0 0 0 0 4 4 f f l l a a t t s s p p r r a a y y t t i i p p . . T T h h e e t t a a b b l l e e s s h h o o w w s s t t h h a a t t t t h h i i s s n n o o z z z z l l e e d d e e l l i i v v e e r r s s 0.40 GPM at 40 PSI.
T Tu u r r n n o o n n y y o o u u r r s s p p r r a a y y e e r r a a n n d d a a d d j j u u s s t t p p r r e e s s s s u u r r e e . . C C o o l l l l e e c c t t a a n n d d m m e e a a s s u u r r e e t t h h e e
v v o o l l u u m m e e o o f f t t h h e e s s p p r r a ay y f f r r o o m m t t h h e e n n e e w w t t i i p p f f o o r r o o n n e e m m i i n n u u t t e e i i n n t t h h e e c c o o l l l l e e c c t t i i o o n n j j a a r r. . F F i i n n e e t t u u n n e e t t h h e e p p r r e e s s s s u u r r e e u u n n t t i i l l y y o o u u c c o o l l l l e e c c t t . . 4 4 0 0 G G P P M M . .
You have now adjusted your sprayer to the proper pressure. It will p p r r o o p p e e r r l l y y d d e e l l i i v ve e r r t t h h e e a a p p p p l l i i c c a a t t i i o o n n r r a a t t e e s s p p e e c c i i f f i i e e d d b b y y t t h h e e c c h h e e m m i i c c a a l l
m m a a n n u u f f a a c c t t u u r r e e r r a a t t y y o o u u r r m m e e a a s s u u r r e e d d s s p p r r a ay y e e r r s s p p e e e e d d . .
STEP NUMBER 5
Checking Your System
P P r r o o b b l l e e m m D D i i a a g g n n o o s s i i s s : : N N o o w w, , c c h h e e c c k k t t h h e e f f l l o o w w r r a a t t e e o o f f a a f f e e w w t t i i p p s s o o n n e e a a c c h h b b o o o o m m s s e e c c t t i i o o n n . . I I f f t t h h e e f f l l o o w w r r a a t t e e o o f f a a n n y y t t i i p p i i s s 1 10 0 p p e e r r c c e e n n t t g g r r e e a a t t e e r r o o r r l l e e s s s s t t h h a a n n t t h h a a t t
o o f f t t h h e e n n e e w w l l y y i i n n s s t t a a l l l l e e d d s s p p r r a ay y t t i i p p, , r r e e c c h h e e c c k k t t h h e e o o u u t t p p u u t t o o f f t t h h a a t t t t i i p p . . I I f f o o n n l l y y o o n n e e t t i i p p i i s s f f a a u u l l t t y y, , r r e e p p l l a a c c e e w w i i t t h h n n e e w w t t i i p p a a n n d d s s t t r r a a i i n n e e r r a a n n d d y y o o u u r r s s y y s s t t e e m m i i s s r r e e a a d d y y
for spraying. However, if a second tip is defective, replace all tips on the e e n n t t i i r r e e b b o o o o m m . . T T h h i i s s m m a ay y s s o o u u n n d d u u n n r r e e a a l l i i s s t t i i c c , , b b u u t t t t w w o o w w o o r r n n t t i i p p s s o o n n a a b b o o o o m m
a a r r e e a a m m p p l l e e i i n n d d i i c c a a t t i i o o n n o o f f t t i i p p w w e e a a r r p p r r o o b b l l e e m m s s . . R R e e p p l l a a c c i i n n g g o o n n l l y y a a c co o u u p p l l e e o o f f worn tips invites potentially serious application problems.
 177
    ENGLISH
    TECHNICAL INFORMATION


































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