Amazone ZA-M User manual

DB 496 (GB) 1.94
Centrifugal Twin Disc
Precision Broadcaster
AMAZONE ZA-M
Instruction Manual
Please study these instructions carefully and by adhering to them
make fullest use of your machine. You will then enjoy trouble-free and
accurate spreading with your new AMAZONE Twin Disc Spreader.
AMAZONEN-WERKE
H.DREVERGmbH&Co.KG
PO Box 51 Ptione (05405) ‘501~0
11.49205 tiashergen Gastt? Telefax (0 54 05) 50 11 93
f-R Gerrnany Telex 944895 amaro d
Branch factories at D~27798 Hude F 5702 Forhach
Suhsldlanes in Great Brltaln and France
Factorles for Fertket~spreaders Seed drills So11tlllage machlnes Fleld sprayers
Printed in F.R. Germany

We congratulate you on the purchase of your new AMAZONE fertilizer broadcaster.
You have made a good choice.
Please study these instructions carefully and by adhering to them make fullest us8 of
your machine. You will then enjoy trouble-free and accurate spreading with your new
AMAZONE broadcaster.
No responsibility tan be accepted by us if complaints and breakages are due to faulty
manipulation or lack of maintenance.
Never put to Operation your AMAZONE broadcaster before having read chapter 2
Safety technical advices and 2.2 General safety and accident prevention advice.
Your broadcaster camplies only with the regulations of the agricultural health and
safety authorities when in the case of repair original Spareparts of AMAZONE are
used for replacement.
By this sign we have marked all chapters which refer to your safety. Please pass this
instruction hand book also to other users of this machine.
Please enter the serial number of your broadcaster here.
You will find the number stamped on the type plate.
Please always quote the machine type and serial number when ordering Spareparts
or making enquiries:
Centrifugal broadcaster ZA - .........................................*....................
Machine serial No. ..............................................................................

Contents Page
1
2
2.1
2.2
3
3.1
3.2
3.3
3.4
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.5
3.6
3.6.1
3.6.2
3.7
3.8
3.9
3.10
4
5
6
7
7.1
7.2
On receipt of the machine .......................................................................... 4
Technical safety precautions .................................................................... 5
Declined use of the machine ........................................................................ 5
General safety and accident prevention advice ............................................ 5
Putting into Operation .............................................................................. 11
Mounting to the threepoint linkage .............................................................. 11
Matthing of the PTO-shaft to the tractor .................................................... 11
Setting of the tractor’s hydraulic .................................................................. 11
Setting up the broadcaster .......................................................................... 11
Setting of the mounting height .................................................................... 11
Opening or shutting of the outlet openings .................................................. 13
Setting of the spread rate ............................................................................ 13
Checking the spread rate (caiibration test) .................................................. 15
Setting of the working width ........................................................................ 17
Checking the working width ........................................................................ 21
Trimmer ...................................................................................................... 21
Boundary spreading .................................................................................... 21
Broadcasting to one side only (centre 1st tramline
being 1.5 . 2 m from field side) .................................................................... 21
Broadcasting towards the boundary with ‘Tele Set’
boundary spread discs ................................................................................ 21
Broadcasting on headlands ........................................................................ 25
Late top dressing ........................................................................................ 27
Agitating spiral ............................................................................................ 27
Advice for spreading snail-pesticides (e.g. Mesurol) .................................. 27
Special hints for Operation ...................................................................... 29
Maintenance .............................................................................................. 29
Special executions and Options .............................................................. 31
Hints for adjustments ................................................................................ 33
Checking the basic setting of the shutter slides ............................................ 33
Amount of pressure in the tractor’s hydraulics ............................................ 33

1 On receipt of the machine
Check that no darnage has been caused in transit and all Parts are present, otherwi-
se no responsibility tan be accepted by us or the carrier.
Before commencing work, remove all packing material, wire, etc. and check that all
lubrication Points are weil supplied with grease, Oil,etc. before use (e. g. universal
joints and agitator drive chain)!

2 Technlcal Safety Precautions A
2.1 Declined use of the machine A 1
The centrifugal broadcaster AMAZONE ZA-M has been exclusively designed for
the usual Operation in agriculture especially for the distribution of granular fertilizers.
The machine is designed to spread on slopes of up to 20 % (189 inclination.
If the sprbader is used on slopes exceeding 20 % it is no longer considered as proper
use. The manufacturer does not accept any responsibility for damages resulting from
this; the Operator himself carries the full risk. Adhere to the manufacturer’s prescribed
Operation, maintenance and repair conditions.
The centrifugal broadcaster AMAZONE ZA-M may only be operated, maintained and
repaired by such persons who have been made acquainted with it and who have
been advised about the dangers. The Health and Safety Executive advise as weil as
further generally accepted safety technical, working, medical and traffit laws should
be adhered to.
Any damages resulting from arbitraty changes on the machine rule out the responsi-
bility of the manufacturer.
2.2 General safety and accident preventive advice
2.2.1 Basic principle: Always check traffit and operational safety before putting the
machine into any Operation!
2.2.2 Adhere to the general rules of health- and safety precautions as weil as to the
hints in this instruction manual.
2.2.3 When making use of public roads adhere to the applicable traffit rules.
2.2.4 Betome acquainted with all devices and controlling elements as well with their
function before beginning with the Operation. Doing this during Operation would be
too late!
2.2.5 Before beginning to drive check surrounding (children). Ensure sufficient
visibility!
2.2.6 The clothing of the Operator should fit tight. Avoid wearing loose clothing!
2.2.7 Sitting or standing on the implement during the Operation or during transport is
not permissible.

2.2.8 Mount the implement as prescribed. Moving characteristics, steering and
braking ability are affected by mounted implements, trailers and ballast weights.
Therefore take account of these effects and allow sufficient steering and braking.
2.2.9 Adhere to the maximum permissible axle loads and total weight. Refer to
vehicle documents and machine’s instruction manual.). When lifting the fertilizer
broadcaster the front axle load of the tractor is relieved by different amounts depen-
ding on the size of the tractor. Always check, that the necessary front axle load of the
tractor (20 % of the tractor’s net weight) is maintained.
2.2.10 If a trailer hitch is provided it must only be used for towing suitable imple-
ments or twln axle trailers up to a maximum of 25 km/h (outside West-Germany
different laws may prevail). Single axle trallers must not be towed under any
circumstances.
2.2.11 When driving into bends mind the projection to the sides and the gyrating
mass of the implement!
To avoid sideways Swing of the spreader during Operation stabilizer bars or chains
tan be fitted to the tractor’s Iower arms of the three-Point linkage (Seetractor acces-
SW).
2.2.12 During driving never leave the Operators seat!
2.2.13 Before leaving the tractor lower the implement to the ground.
Actuate the parking brake, stop the engine and remove the ignition key!
2.2.14 Never stay or let anyone stay within the operating area!
Warning: Never come near to rotating spinner dies, danger of injury! A !
2.2.15 During the calibration test watch out for danger zones due to rotating Parts of
the machine!
2.2.16 Filling of the fertilizer broadcaster may only be done with a stopped tractor
engine, removed ignition key and closed shutters!
2.2.17 Note maximum permissible filling loads!
Maximum filling load of the ZA-M: 2000 kgs
2.2.18 If a filled machine is to be parked without the tractor the fertilizer inside the
hopper should be levelled - otherwise danger of tipping over!
2.2.19 DOnot place any foreign objects inside the hopper.
2.2.20 Be careful when staying or when seeing other persons staying within the
throwing zone of the fertilizer broadcaster.
2.2.21 Mount the implement only with the prescribed tools.
6

2.2.22 Special care should be taken when the implement is coupled to or off the
tractor.
2.2.23 Secure implement and tractor against unintentional rolling away.
2.2.24 Take implement only into Operation only when all guards are fixed in position.
When using “Opti-set” spreading discs OS 30-36 make sure the guard tube is bolted
to the broadcaster.
2.2.25 Fitting the machine to the three-Point linkage of the tractor bring all control
levers in such a Position at which an unintentional lifting or lowering is impossible!
2.2.26 When actuating the control levers for the three-Point linkage never step
between tractor and implement!
2.2.27 When driving on public roads with a lifted machine the lifting control lever
should be locked against unintentional lowering - before leaving the tractor lower the
mounted implement onto the ground and remove ignition key!
2.2.28 Nobody should stay between tractor and implement if the tractor is not
secured against rolling away by the parking brake and/or by chocks!
2.2.29 When fitting to the three-Point linkage the mounting categories at the tractor
and the implement must coincide!
2.2.30 Working implements should only be transported and driven on tractors which
are designed to do this!
2.2.31 Check maximum permissible axle loads of the tractor (see vehicle docu-
ments).
2.2.32 DOnot exceed maximum permissible transport measurements of the traffit
department.
2.2.33 Fit and check transport gear, e.g. traffit lights, warning- and protection
devices!
2.2.34 On all hydraulically actuated pivoting Parts exists danger of injury by bruising
and trapping.
2.2.35 The release ropes for quick coupler should hand freely and in the low Position
must not release the quick coupling by themselves.
2.2.36 Affix any ballast weights always as prescribed to the correct fixing Points!

Unlversal jolnt (P.T.O.) shaft
2.2.37 Use only P.T.O. shafts which are designed for the implement and which are
equipped with all legally requested guards.
2.2.38 Fit and remove the P.T.O. shaft only when engine is stoppedl
2.2.39 When operating with a switched-on P.T.O. shaft allow no one to stay near to
the spinning P.T.O.- or universal joint shaft.
2.2.40 Guard tubes and cones of the P.T.O. shaft as well as a tractor and implement
side P.T.O. guard must be fitted and kept in the correct place.
2.2.41 After switching off the P.T.O. the mounted implement may still continue to run
by its dynamic masses. During this period never come too close to the implement.
Begin work on the implement only after it has come to a full standstill!
2.2.42 Put to Operation P.T.O. shafts only if they are completely equipped with
guards also at the implement side!
2.2.43 Connect P.T.O. shaft only after the engine is stopped completely and the
P.T.O. shaft has been switched off!
2.2.44 Before switching on the P.T.O. shaft take care, that no one stays in the
danger zone of the implement!
2.2.45 Before switching on the P.T.O. shaft ensure that the Chosen P.T.O.-Speed of
the tractor corresponds to the allowable implement input Speed.
2.2.46 Slow engagement of the P.T.O. shaft protects tractor and spreader.
2.2.47 Switch off the P.T.O. shaft as soon as the machine’s outlet openings have
been shut off.
2.2.48 After removal of the universal joint shaft replace protective cap over the
tractor’s P.T.O.
2.2.49 Clean and grease the universal joint shaft and the P.T.O.- driven implement
only after the P.T.O. shaft and engine have been stopped and ignition key pulled out!
2.250 Never switch on the tractor P.T.O. while the engine is stopped.
2.2.51 Stop P.T.O. always when it is not needed or when the shaft is in an adverse
Position!
2.2.52 Remedy of damages is to be undettaken before beginning the Operation1
2.2.53 Ascertain correct fitting and securing of the P.T.O. leck.
8

2.2.54 Prevent P.T.O. guard from spinning by fixing the provided chain to a nearby
static part (see Fig. 1b).
Maintenance
2.255 Liquids leaking under high pressure (Diesel fuel, hydraulic Oil)tan penetrate
the skin and Cause severe injury. When injured see a doctor immediately. Danger of
infection!
2.2.56 Dispose of old oiis, grease and filters as prescribed by law.
2.2.57 Check and retighten if necessary nuts and bolts regularly, initially after 3 - 4
hopper fillings.
2.2.58 When conducting maintenance work on the lifted implement always place
suitable supports underneath.
2.2.59 When conducting electrical welding operations on the tractor or on the moun-
ted implement remove cable from the generator and the battery.
2.2.60 The hydraulic System is under high pressure.
2.2.61 When searching for leaks appropriate aids should be used because of the
danger of injury.
2.2.62 Before starting to do repair work at the hydraulic System relieve it of pressure
by actuating the control lever accordingly and stop tractor engine.
2.2.63 When fitting the hydraulic hoses to the tractor hydraulic sockets always ensure
that the hydrcjulic System on the tractor as weil as on the implement side is without
pressure.
2.2.64 Fit the hydraulic hoses to the tractor according to the advice in the instruc-
tions. To avoid wrong connection sockets and plugs should be colour coded. This
helps to prevent misoperation and reduces the danger of accidents caused by it.
2.2.65 The period of use of any hose circuit should not exceed six years including a
possible storing period of two years in maximum. Also when stored and used properly
hoses and hose circuits do age. Therefore their longevity and period of use is limited.
Deviations from the above may be accepted by the Health- and Safety Authorities
and depending on experience made and the danger potential. For hoses and hose
circuits made of thermoplasts other guide lines may prevail.

Fig. Ib
Fig. 2a Fig. 2b
Fig. 3
10

3. Puttlng Into Operation
3.1 Mountlng to the three-polnt linkage
When mounting the fertilizer broadcaster to the tractor three-Point linkage it should be
noted that the pins are secured properly. The top link pin with the arresting lever
should be locked. The lower link pins should be secured by lynch Pins.
3.2 Matthing of the P.T.O. shaft to the tractor
When first mounting the machine to the tractor, the P.T.O. shaft halves should be
separated and the front half should be fixed to the tractor’s P.T.O. but not inserted in
the implement half which remains on the implement.
Thereafter the two P.T.O. halves should be held side by side. lt should be checked,
that in the furthest extremes of the machine (machine on the ground or hydraulically
lifted fully up) the P.T.O. tube overlap by a minimum of 6 cm (2 1/2”) and that in the
shortest position (machine horizontally level) the ends of the tube do not ‘bottom’. If
they meet, both ends must be shortened by the Same amount (Fig. 1 a). (Please
dso check using various angled positions of the broadcaster as stated in the setting
Chart.)
The two halves of the P.T.O. shaft are now ready for being joined together. Make
Sure, that under all working conditions the angle of the shaft must not exceed 25
degrees (lubricate P.T.O. shaft and tube). The P.T.O. guard is detachable.
Affix the chain of the P.T.O. guard to tho hole provided in the main frame as shown in
Fig. 1b to prevent the guard from rotating.
When parking the fertilizer spreader the P.T.O. shaft should be placed into the
catching hook (Fig. 1 b).
3.3 Setting of the tractor’s hydraulic linkage
Attention! For lowering the ZA-UM on the hydraulic three-Point linkage use always
only the tractor’s hydraulic “position control” lever. This allows the height of the
implement to be held in any hydraulic Position. The Speed of lowering of a filled
broadcaster must never be faster than 2 seconds. If a hydraulic response control
is available set the hydraulic throttle valve accordingly.
Note: The hydraulic control should not be operated with a higher pressure than 180
bar.
3.4 Setting up the broadcaster
3.4.1 Setting of the Operation height
For normal fertilizing simply set the machine to a level height of 80/80 cm (Fig. 2 a).
This measurement being the spreading discs above the ground or top of the crop.
At large working widths (from 27 m) with some kinds of fertilizer a large throwing
width to the rear results. If it is desirable to keep the throwing width shorter to the rear
it is possible to set the machine tilt to the rear using a mounting height of 80/77 cm
(fig. 2 b). In this case it is important to note that all vanes must be set forward by one
figure (in rotating sense of the spinning discs). For some few kinds of fertilizer an
11

Fig. 4
lom 12m 15m 16m 18m
kmih km/h km/h kmih kmih
8 10 12 8 10 12 8 10 12 8 10 12 8 10 12
20 150 120 WO 125 lW 83 100 80 87 94 75 63 83 87 56
Zl 173 138 115 144 115 98 115 92 77 108 86 72 96 77 64
22 195 156 130 163 130 108 130 104 87 122 98 81 IOJI 87 72
23 718 174 145 ,8, 145 12, 145 116 97 136 108 91 121 97 Ai
24 740 1'12 160 200 ,611 133 Iö" i.26 ioi 150 170 IOC 133 101 89
25 110 916 180 215 130 150 180 144 120 169 135 113 150 120 100
26 3w 240 204 250 200 167 ZM) 160 133 168 150 125 167 133 111
2, 338 270 225 281 225 188 225 180 150 211 169 141 188 150 125
28 375 80 250 313 250 208 254 200 167 234 186 156 208 167 139
29 d,3 330 215 :144 275 229 275 220 183 258 206 lil 2111183 1%
30 450 360 300 375 300 250 300 240 200 18, 115 ,BH 150 70" 167
3, 488 390 325 406 325 77, 325 260 217 305 244 703 171 217 181
32 525 420 350 438 350 292 350 280 233 328 263 218 292 233 194
33 563 450 375 469 375 313 375 300 250 352 281 234 313 250 206
2.4 600 480 400 504 400 333 4M) 320 267 375 300 250 333 267 222
35 m 510 425 53, 415 354 425 340 283 398 319 266 354 783 736
36 hm 546 455 569 455 3i9 455 364 303 477 341 284 379 '103 2%
37 i28 582 485 606 485 404 485 388 313 455 364 303 404 323 269
38 773 618 515 644 515 429 515 412 343 483 386 322 429 343 286
34 825 660 550 688 5.50 458 550 440 367 516 413 344 458 367 306
46 678 702 585 731 585 488 585 468 390 548 439 366 488 390 325
41 930 744 620 775 620 517 620 496 413 581 465 388 517 413 344
42 833 86 655 319 655 546 655 524 437 614 481 409 546 437 364
43 ,043 834 695 869 695 578 695 556 463 652 521 434 579 463 366
44 1103 882 735 919 735 613 735 Ed8 490 689 551 459 613 490 408
48 1163 930 775 969 775 646 775 620 517 727 581 484 646 517 431
48 1223 978 815 1019 815 679 815 652 543 764 611 509 679 543 453
47 ,733 1076 355 IO,>9355 713 855 684 570 807 64, 53.1 713 51i1 475
48 1.143,"id 395 111'1 895 740 895 716 5'17 839 6ll Wl) 746 591 497
49 Idl111128 '940 1115 9'11178 940 752 6,T 88, 705 Vi* TH.,1171%'1
Fig. 5
12

exceptional rule applies. Further details about it may be taken from the separate
setting Chart.
For the spring spreading season when the crop has grown up to 40 cm tall, one half
of the crop height should be added to the above stated disc heights above the ground
(i.e. 80/80 or 8Oi77 cm). If the crop Stands taller follow the instructions for late top
dressing (Para. 3.8).
If the crop Stands very dense (e.g. Rape) the fertilizer broadcaster should be set at
80/80 or 80/77 resp. above the crop. If that is no langer possible than please also
follow the instructions for late top dressing (Para. 3.8).
3.4.2 Opening or shutting of the outlet openings
The fertilizer is guided through the two openings from the Split hopper onto the
spreading discs. These openings are shut by a hydraulic ram (Fig. 3/1) and opened
by spring action (Fig. 3/2).
Shutting the leck taps ensures that the closed shutters do not open by themselves
through weak spool valves or after long periods.
The shutters tan be actuated independently of one another allowing the spread to
one side only. The precondition for this is the availability of two hydraulic sockets
which tan be actuated independently from one another. At tractors with only one
Single acting hydraulic socket a twoway unit (Option, Order No. 145 600) is required.
The rods with the red taps to the left and right of the P.T.0 shaft indicate whether the
shutter slides are open or closed.
3.4.3 Setting the spread rate
Setting the spread rate should be conducted with the hydraulics keeping the shutter
slides closed.
The spread rate is set with the aid of the two setting levers (Fig. 411).These function
as stop to the shutter slides so that it is possible to set varying shutter openings.
The kind of fertilizer, the working width, the forward Speed and the desired spread
rate are the factors for the various setting figures. These are compiled in the setting
Chart. From the setting Chart it is known (example Fig. 5) on which setting number the
levers (Fig. 4/1) are to be set. To Set, the thumb nuts (Fig. 4/2) are loosened slightly
and the Pointers on the lever (Fig. 4/3) should Point to the corresponding setting
figure on the scale (Fig. 4/4). Then the two thumb-nuts (Fig.4/2) are retightened.
Example:
Spreading material: Calcium Ammonium Nitrate 27 % N, BASF
(white)
Working width: 15 m
Forward Speed: 8 km/h
Desired spread rate: 360 kg.s/ha
Setting figure for the setting levers: 32
Please refer to para 7.1 for the way of checking the basic setting of the shutter slides.
13

Fig. 6

3.4.4 Checking the spread rate (callbration test)
For calibrating the spread rate the spreader must be attached to the tractor and the
lefthand Spinner disc has to be removed. The pointer of the lefthand setting lever
must be set to the setting figure taken from the setting Chart.
The calibration bucket is hung beneath the left shutter opening using the holes on the
frame (Fig. 6/1). This way the fertilizer tan be collected during a certain calibration
distance. The required fotward distance depends on the working width.
A
!
Always stop drive of the machine before putting on or taking off calibration bucket.
Working required
bout width forward distance area covered
for total spread
rate multiply
collected weight
Ws) by
9.00 m
10.00 m
12.00 m
15.00 m
16.00 m
18.00 m
20.00 m
21.OOm
24.00 m
27.00 m
30.00 m
32.00 m
36.00 m
55.50 m
50.00 m
41.60 m
33.30 m
31.25 m
27.75 m
25.00 m
23.80 m
41,60 m
37.00 m
33.30 m
31.25 m
27.75 m
1140 ha
1140ha
lt40 ha
1140ha
1140ha
1140ha
1140ha
lt40 ha
1120 ha
lt20 ha
1/20 ha
1/20 ha
1120ha
40
40
40
40
40
40
40
40
20
20
20
20
20
When calibrating high spread rates per hectare, due to the limited capacity of the
collecting bucket it may be necessary to reduce the required forward distance by half
and to double the multiplication factor.
The forward distance should then be driven under field conditions (with the intended
forwart Speed and P.T.O.-Speed of 540 R.P.M.). The weight of the fertilizer collected
in the bucket is to be multiplied with the stated multiplication factor to obtain the
actual spread rate in kgs/ha.
Example:
Required working width: 12 m
The fertilizer collected from a forward distance of 41.6 m at
the normal forward Speed is 10 kgs.
Spread rate per hectare = 10 kg x 40 = 400 kgs/ha
15

If according to the calculation the spread rate deviates from the required spread rate
the position of the setting lever on the setting scale should be changed either to a
higher or lower figure. lt may become necessary to repeat the calibration test.
After the calibration test the pointer of the righthand setting lever should be brought
to the Same Position which had been determined by the calibration test for the
lefthand setting lever.
After the calibration test the collecting bucket may be affixed to the lefthand side of
the machine (Fig. 7). The calibration test should particularly be conducted with kinds
of fenilizer which are not mentioned in the setting Chart.
3.4.5 Setting the working width
The fertilizer spreaders of the type ZA-M tan in a simple way be set to various
working widths which must correspond to the tramline spacings the distance of which
are always a multiple of the seed drill% working width.
The varying working widths of the AMAZONE ZA-M arc obtained by various sprea-
ding discs and/or depending on the kind of fertilizer by differing settings of the
spreading blades on the Spinner discs.
The machine is equipped as Standard with the Opti-Set-spreading discs. The various
working widths are divided in areas for which apart from a few exceptions (See setting
Chart)a corresponding pair of Spinner discs is available.
IO-18m = OSIO-18
20 - 28 m = OS 20-28
30 - 36 m = OS 30-36
As the concave opening of the spreading blades must always face the rear when
passing through the centre of the machine the bushes of the discs and their corre-
sponding Spinner shafts were designed in such a way that a wrong fitting is avoided.
A safety pin has been placed to the righthand Spinner shaft so that only the righthand
Spinner disc with its two keyways tan be fitted. On the Spinner discs the spreading
blades tan be set in such a way, that the required working width is accurately
obtained. In principle the Opti-Set discs tan be set to spread fertilizer to such working
widths which the individual types of Opti-Set discs are designed for (Seeabove).
Should there be a type of fertilizer to which this principle does not apply, please follow
the special advices in the setting Chart.
The accurate details as to how the blades are to be set may be taken from the
summary in the seting Chart (e.g. Fig. 8, Page 19).
17

Example:
Required working width: 24 m
Spreading material: Calcium Ammonium Nitrate (CAN) BASF (white)
Type of Opti-Set Spinner disc: OS 20-28 (white)
Setting figure for the setting of the spreader blades: 66/87
Position of the vanes in dependance of types of fertilizer and of the working widths:
Type of fertilizer Effective working width Spread-
rates
20 m 21 m 24 m 27 m 28 m s. Page’
ICI Nitram 34,5 % N Prills
KEMIRA Nitraprill 34,5 % N 67186 67186 68189 69191 69192
r 21
Norsk Hydro EXTRAN
34,5 % N Granular 67184 67185 68187 68190 68191 23
CAN 27 % N Granular BASF
(white)
CAN 27 % N Granular NSM 65186 65186 66187 70187 70188 25
* of setting Chart
Fig. 8 Excerpt from setting Chartas example for setting the “Opti-Set” discs. The
actual setting figures have to be taken from the latest setting Chart.
For setting the spreading blades slacken only the thumb nuts beneath the Spinner
discs (Fig. 9a/l). lt should be noted that the dished washers are fitted according to
Fig. 9 b. Swivel the long spreader blades to the Position 87 of the scale Fig. 1011)and
then firmly retighten the thumb nuts.
Proceed in the Same way with the short spreading blades which are set on the figure
66 of the scale (Fig. 1012) and firmly retighten them by the thumb nuts. For another
type of fertilizer or another working width other figures from the setting Chart may
wly.
Esch of the spreader blades has a defined working area (Fig. 11). The short blades
determine the distribution in the middle area (Fig. 1Ill).
The long spreader blades determine the distribution in the outer area (Fig. 1112).
By swivelling the spreader blades in the direction of rotation of the discs (on to a
higher figure on the yellow scale)the fertilizer will be spread further to the outer area.
By swivelling the blades against the direction of rotation the fertilizer will be spread
more to the central area.
19

Fig. 12
Fig. 14
Fig. 15
Fig. 17
20