Stocks AG FAN JET DUO PLUS TM 65 Installation instructions

1
Read carefully before installation and
operation
FAN JET DUO PLUS TM
65 & 130
Original Operating Manual
Original Instructions, Revision 1 August 2020
This document must not be copied duplicated or distributed without prior consent .
All and patent rights apply
STOCKS AG LIMITED, CROMWELL ROAD, WISBECH, CAMBRIDGESHIRE, UK.
Tel: [phone] Email: [email protected] www.stocks-ag.co.uk

2
Section Page No.
2 Index 2
3-1 General information 3
3-2 Technical data 3
3-3 Intended use 3
3-4 Unintended use 3
4 Contents of the EC Declaration of Conformity 4
5 Contents of the UKCA Declaration of Conformity 5
6-1 Machine identification 6
6-2 Warranty 6
7 Safety 7
8-1 Emergency Stop Instructions 8
8-2 Maintenance 8
9 Safety warning decals and safety signs 9
10-1 & 10-2 Clearing a blockage & Hopper Removal 10
10-3 & 10-4 Storage & OPTIONAL Heavy Duty Waterproof Cover 10
10-5 Disposal 10
11-1 Fitting to a vehicle or implement 11
11-2 & 11-3 OPTIONAL Central Beam Assembly & OPTIONAL UTV Fitting Kit 11
12 OPTIONAL Base Mounting Kit 12
13 Control system overview 13
14 Electrical Connections 14
15 Alarm Functions 15
16 Configuration of left and right hand machines 16
17-1 & 17-2 Spread bias adjustment & Spread width and pattern 17
18 & 19 Setting the working width 18 &19
20-1 Setting the feed rate 20
20-2 & 20-3 Changing the feed rollers & Feed roller configuration 20
21-1 & 21-2 Calibration information & Calibration Hopper 21
22 & 23 Calibration procedure 22 & 23
24 Varying machine outputs 24
25 Reset Jobs 25
26 Fill Hoppers 26
27 Headland Control — Implement Offset 27
28 Machine offset menu 28
29 Setting machine offset 29
30-1 Headland Control Settings 30
30-2 & 31-1 Lead out distance & Lead in distance 30 & 31
31-2 Coverage overlap 31
32-1 & 2 Instrument settings & User name and password record 32
33 Checking software Version 33
34 Viewing job details 34
35-1 & 35-2 Exporting jobs (CSV) & Resetting jobs 35
36 Screen settings 36
37 Parts Drawing 37
38 –40 Parts lists 38,39 & 40
41 &42 Optional Central Beam Assembly and parts list 41 & 42
43 Optional UTV fitting Kit 43
Index Revision 01

3
3-1 General information
Congratulations on your Fan Jet Duo purchase;
Please check the machine for any transport damage upon receipt and advise your supplier
of any problems immediately. Late claims regarding any damage may be rejected.
IMPORTANT
This Operating Manual forms part of the machine and must be readily available for the operator
who must read and follow the points covered before use
3-2 Technical data
Model: Fan Jet Duo Plus TM
Hopper capacity: 2 x 65 litre or 2 x 130 litre
65 litre machines: Net weight:90kg Dimensions (W x D x H) 50 x 56 x 82cm (boxed 52 x 58 x 84cm)
130 litre machines: Net weight:98kg Dimensions (W x D x H) 52 x 60 x 90cm (boxed 52 x 62 x 94cm)
Max. spreading width: 36 m
Recommended working width: 18 –36m
*Operating Voltage 12v; Power requirement 60 amps Motor outputs: 720 watt
Max. disc speed: 5200 rpm
*Noise level: 95dB * Combined data for both left and right hand machines
3-3 Intended use
This machine has been designed to apply large dense slug pellets from 18m to 36m in the agricultural,
horticultural and amenity sector and
can be mounted to operate facing forwards or backwards.
Any other use is considered to be unintended and the manufacturer will not be liable for any resulting
damage.
If mounting to a self propelled crop sprayers or tractor front linkage we recommend the use of our purpose
built Central Mounting Beam and for suitable UTV vehicles our UTV fitting kit (see page 10)
NOTE - when fitting to a UTV vehicle the minimum alternator output required is 55amps and the maxi-
mum spread width is limited to 32m due to the power supply available and height of machine when mount-
ed.
The operator alone bears the associated risk if used for unintended use.
Intended use also includes compliance with the conditions for operation, maintenance, and repairs.
The implement may only be used, maintained and repaired by persons who have relevant experience and
aware of the risks involved.
The manufacturer is not liable for any resulting damage if the machine is used for any other purpose than
the intended use also includes compliance with the conditions for operation, maintenance, and repairs pre-
scribed within this instruction manual .
This machine should not be used in the rain or during a thunderstorm.
The applicable accident prevention regulations as well as the other generally safety-related, occupational
health and road traffic regulations must also be observed.
Specifications descriptions and illustrations in this manual are accurate at the time of this publication but
may be subject to change this manual is correct at the time of printing but we reserve the right to change
and improve them. This machine is designed with safety in mind.
Maintenance and servicing in accordance with this manual will ensure safe operation and reliability of your
machine for many years
3 - 4 Unintended use

4
E.C. DECLARATION OF CONFORMITY
Machine Type: Mounted Agricultural Implement - Pellet and Seed application broadcasters
Model(s): Fan Jet Pro All Variants & Versions
Fan Jet Pro Plus All Variants & Versions
Fan Jet Twin All Variants & Versions
Fan Jet Mini All Variants & Versions
Fan Jet Duo All Variants & Versions
Turbo Jet All Variants & Versions
Rotor Meter All Variants & Versions
Rotor Meter Air Force All Variants & Versions
Micro Meter All Variants & Versions
Maxi Meter All Variants & Versions
Serial No. ……………………………………………………………………………………………
Manufacturer: Stocks Ag Ltd
Cromwell Road
Wisbech
Cambridgeshire PE14 OSD
United Kingdom
This is to declare that the above machine conforms to the relevant Essential Health and Safety Requirements of the
Machinery Directive 2006/42/EC, implemented in the United Kingdom by Statutory Instrument 2008 No.
1597 – The Supply of Machinery (Safety) Regulations 2008 as amended.
The following standards have been applied in the design and construction of this machine:
BS EN ISO 12100: 2010 Safety of machinery – Basic concepts, general principles for design – Basic
terminology, methodology.
BS EN ISO 4254-1: 2015 Agricultural machinery – Safety - General requirements
BS EN ISO 4254-8: 2018 Agricultural machinery – Safety – Solid fertilizer distributors.
BS EN ISO 13854: 2019 Safety of machinery – Minimum gaps to avoid crushing of parts of the
human body.
BS EN ISO 13857: 2019 Safety of machinery – Safety distances to prevent hazard zones
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabeing reached by the upper and lower limbs.
The manufacturer stated above holds the technical file for this machine.
Signed on behalf of Stocks Ag Ltd
Name: J Woolway
Date: 06th August 2020
Position: Managing Director
t. [phone] f. [phone] e. [e-mail]

5
UKCA. DECLARATION OF CONFORMITY
Machine Type: Mounted Agricultural Implement - Pellet and Seed application broadcasters
Model(s): Fan Jet Pro All Variants & Versions
Fan Jet Pro Plus All Variants & Versions
Fan Jet Twin All Variants & Versions
Fan Jet Mini All Variants & Versions
Fan Jet Duo All Variants & Versions
Turbo Jet All Variants & Versions
Rotor Meter All Variants & Versions
Rotor Meter Air Force All Variants & Versions
Micro Meter All Variants & Versions
Maxi Meter All Variants & Versions
Serial No. ……………………………………………………………………………………………
Manufacturer: Stocks Ag Ltd
Cromwell Road
Wisbech
Cambridgeshire PE14 OSD
United Kingdom
This is to declare that the above machine conforms to the relevant Essential Health and Safety Requirements of the
Machinery Directive 2006/42/EC, implemented in the United Kingdom by Statutory Instrument 2008 No.
1597 – The Supply of Machinery (Safety) Regulations 2008 as amended.
The following standards have been applied in the design and construction of this machine:
BS EN ISO 12100: 2010 Safety of machinery – Basic concepts, general principles for design – Basic
terminology, methodology.
BS EN ISO 4254-1: 2015 Agricultural machinery – Safety - General requirements
BS EN ISO 4254-8: 2018 Agricultural machinery – Safety – Solid fertilizer distributors.
BS EN ISO 13854: 2019 Safety of machinery – Minimum gaps to avoid crushing of parts of the
human body.
BS EN ISO 13857: 2019 Safety of machinery – Safety distances to prevent hazard zones
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabeing reached by the upper and lower limbs.
The manufacturer stated above holds the technical file for this machine.
Signed on behalf of Stocks Ag Ltd
Name: J Woolway
Date: 01st December 2020
Position: Managing Director
t. [phone] f. [phone] e. [e-mail]

6
6-1 Machine identification
The machine the serial number decal is mounted on the steel chassis to one side of the hopper
6-2 Warranty
We provide a 12 month warranty as of the date of invoice
(your invoice for the machine will serve as a warranty certificate).
This warranty is applicable for cases of material or construction faults and does not include parts that are
damaged by normal or excessive wear.
Warranty expires if damage is caused by external forces, operator error, modifications, Jet washed or if
the machine has not been used for its intended use.
Contact the company whom you purchased the machine from in the event of any problems, or before at-
tempting any repair. If the base machine or the controls system are modified in any way this will void any
warranty claim.
Please see our conditions of sale for full details a copy of which available upon request
Please record the machine serial number here; S/N ……………………………….
Purchase date: ………………………………… Dealer ……………………………...
CE

7
7 Safety
Ensure care is taken when lifting the machine
Safe lifting practice to be observed when handling as the net weight is over 25kg
We advise safety shoes and protective gloves are worn when handling the machine
Assistance may be required when lifting or lowering the machine
Care to be taken to avoid crushing due to the weight of the machine.
When lifting or fitting the machine to the parent vehicle or implement ensure work is performed on level
ground or flat surface to avoid slipping, stumbling or falling.
PERSONAL PROTECTION EQUIPMENT It is the responsibility of the operator or maintenance
persons handling the machine to ensure the appropriate personal protection equipment is worn
for the material being applied or to prevent contamination to the machine or the environment.
WARNING Always observe all application standards and guidelines provided by the
product manufacturer as some products may be toxic ! If unsure contact your supplier for more
information.
WARNING Ear protection required if working close to the machine as it exceeds 80dB
NOTE if unsure contact your seed or product supplier for more information.
If applying slug pellets or other toxic material and the parent vehicle has a closed cab the operator must
ensure the cabin is always closed and the air filter system is in good order.
If fitted to an ATV or UTV vehicle ensure the stability of the parent vehicle is not affected when the machine
is in use. If in doubt contact the manufacturers of the vehicle.
After working the machine ensure that any unused product is returned safely to its original packaging
Stocks AG Ltd. does not accept any liability for the storage and use of the material being applied
If unsure contact the material supplier for more information.
WARNING Always adhere to the warning information as the disc rotates very fast and has
sharp edges.
Granules leave the fan at very high speed in all directions and care must be taken by the
operator to keep well clear and out of the spreading zone when the machine is in
operation.
It is the responsibility of the operator to ensure that no other persons enter the
spreading zone whilst the machine is in operation.
The machine may only be used, maintained and repaired by persons who have relevant
experience or a machinery dealer who is aware of any risks involved.
The applicable accident prevention regulations as well as the other generally safety-related, occupational
health and road traffic regulations must also be observed.
The manufacturer is not liable for any damage resulting from unauthorised modifications and the use of
components and auxiliary parts
The machine must be checked regularly by the operator (before each use) for any damage loose bolts or
electrical connections, vibrations, unusual sounds, and to ensure they function correctly.
The machine must not be operated in wet weather conditions and not to be used during thunderstorms.
Observe the generally applicable safety and accident prevention regulations
Use the hopper tipping facility to empty the hopper of toxic materials to prevent harm to humans and
animals after each use and prior to storage.
WARNING
Always isolate the power supply if servicing or leaving the machine unattended.
NOTE UK users; more information regarding slug pellet and best practice available at
www.getpelletwise.co.uk

8
8-1 Emergency Stop instructions
In the case of an emergency always turn off the feed motors and spinning disc motors by touching
widgets A B and C which will switch off the power to the feed and disc motors
NOTE symbols A, B, C, D, and E should all be RED in colour to indicate all motors are off
Then isolate the power supply immediately by disconnecting the power cable at the battery
8-2 Maintenance
WARNING
Always ensure the power supply is disconnected before any maintenance work or cleaning of this
machine.
Suitable protective clothing must be worn (See page 6)
DO NOT JET WASH THIS MACHINE
The machine must be checked regularly by the operator for any damage loose bolts or electrical connections,
vibrations, unusual sounds, and to ensure they function correctly.
Before use;
1. Ensure the machine is securely mounted
2. Check the power supply
3. Ensure feed shutters are free to operate before starting work
Daily checks;
1. Check the disc to motor shaft socket screws (items 5 on page 22) on the lower side of the spinning disc
to ensure they are tight and the spinning disc turns with the motor
2. Check the stainless disc vanes for any wear or distortion and replace prior to use if necessary.
Vane Kit available if required;- Part number FJ009C (set of vanes and fixings for one disc assembly)
3. Check the feed shutters to ensure they are operating correctly
After each use;
1. Empty hopper before removing the feed block assembly and clean the machine thoroughly ensuring all
pellets residue has been cleaned from the hopper feed rollers and body of the machine.
2. Store in dry conditions to protect the machine and control system from moisture
WARNING Always observe all guidelines provided by the product manufacturer with regards to
handling storage and disposal of products as some may be toxic !
Power widget for both
feed motors
Power widget for
disc motors

9
9 Safety warning decals and warning signs
Important ; Be aware of the safety warnings below which are all relevant to this machine
WARNING
Read and understand the Operators Manual
instructions before operating this machine
Operator errors can result in serious injury
WARNING
Danger due to thrown or flying objects
Always maintain a safe distance whilst the
machine is in operation
WARNING
Risk of injury
Possible trapping point when tipping hopper
WARNING
Keep Clear
Maintain a safe distance from the ma-
chine when in operation
Wear the appropriate protective personal
equipment
WARNING
Do Not Jet Wash
This machine is not designed to
withstand Jet Washing !
WARNING
Risk of injury
Be aware the feed mechanism is powerful and
can cause serious injury

10
10-1 Clearing a blockage
WARNING Always ensure the power supply is disconnected before working on the machine
By unplugging the power supply cable or disconnect the power cable from the vehicle battery.
Ensure the parent machine is stationary, switched off, and parked on level ground
Ensure appropriate personal protection equipment is worn for the product being applied
Ensure any product removed is put back into its original container
Care to be taken not to spill any product that could contamination the environment.
Empty the hopper of any remaining product
10-2 Hopper removal
Removing the hopper for cleaning and maintenance
Ensure the hopper is completely empty and free from any product residue Ensure appropriate personal
protection equipment is worn for the product being ap-
plied
Release the rubber lid retaining straps and remove the lid.
The hopper can then be lifted away after removing the retaining
plate(s) from within the hopper by releasing the M8 external
fixing nuts and washers.
NOTE When replacing the hopper ensure the Gasket fitted
under the base of the hoper is in good order
Replace if damaged; part number FJ017S
10-3 Storage
Disconnect the power supply by unplugging the power cable or
removing the 60amp fuse in the power cable if storing the
machine for long periods. It is the responsibility of the operator
to ensure the hopper is empty after each use and cleaned
thoroughly before storage.
Store in dry conditions to protect the machine and control system from moisture. Always clean and spray
electrical connectors with a moisture repellent spray when not in use for long periods.
10-4 Optional PVC Waterproof Covers
Heavy duty White PVC covers fitted with eyelets and bungie cord for easy attachment available for all
machines. Available through your local dealer
To order a pair of 65L Waterproof PVC Covers quote part number LC65DUOPAIR
To order a pair of 130L Waterproof PVC Covers quote part number LC130DUOPAIR
10-5 Disposal
Ensure that any persons handling the machine are aware that the machine may have been used
to apply toxic chemicals and so the appropriate personal protection equipment should be worn.
Ensure the hopper contents have been removed and any toxic residue removed and put back into a sealed
container or disposed of in accordance with the manufacturers guidelines to eliminate any possible
contamination of others or the environment
Always adhere to the local disposal regulations paying particular attention to the plastics,
rubber, and electrical components.

11
11-1 Fitting to a vehicle or parent machine
Safe lifting practice to be observed when handling the machine as the net weight is over 25kg
Safety shoes and protective gloves to be worn when handling the machine
With a full hopper the 65L machine could weigh in excess of 80kg and the 130L machine 135kg and so
ensure the machine is securely attached to a suitably strong rigid mounting point.
We recommend front mounting direct to the chassis of self propelled sprayers or tractor front linkage, using
the bolt holes provided in a large vertical bracket of the Central Beam Assembly NOTE many self propelled
sprayer manufacturers offer a suitable bracket or hydraulic raise and lower linkage for this purpose.
Locally fabricated mounting frames are not the responsibility of Stocks AG Ltd
If unsure seek advise from the parent machine manufacturer or supplier.
Ensure the disc height is a minimum of 1.5 metre above the crop canopy or the ground – more height may
11-2 Optional Central Beam Assembly
Central Beam; Part No. FJ-005-BEAM-600 (available through your local dealer)
11-3 Optional UTV Fitting Kit
UTV Fitting Kit; Part Number FJ-005-UTV2 (available through your local dealer)
Offering a sturdy fitting
option for most UTV fitments
with 4 hooked anchor points
with hand release fittings.
One piece tubular steel
construction with detachable
machine mounting plates.
Fixed fork lift point offers
safe and easy lifting on and
off of the utility vehicle.
For more information
see page 43
(check page no)
Heavy duty tubular design offers a sturdy
support for the two hopper units when fitting
to the front of a SP sprayer or tractor.
Approx. dimensions of unit when assembled
65L machines (W) 960 x (H) 700 x (L) 1250
130L machines (W) 960 x (H) 700 x (L) 1350
Approx. weight 130 and 135kg
For more information
see page 41 (check page no)

12
12 Optional Base Mounting Kit
Part No. FJ-005-TIP (available through your local dealer)
Machines are best mounted to our purpose built Central Beams or UTV kits but can also be mounted by using
these optional tipping base plate kits.
These have 4 holes in the base to take M12 bolts (see below) use these to attach to any support fabrication.
The base plate can be repositioned to fit the holes in the back of the machine to attach to a vertical mounting
point – use whichever is best for you.
Ensure there is sufficient room to tip the hopper for emptying and ensure any potential trapping
points are noted taking care not to trap hands or fingers.
The tipping base plate is attached to the chassis by 2 bolts and spacers which act as the pivot, and a
removable steel pin secured by an ‘R’ clip
(as when fitting to the optional Central Beam or UTV kit)
There are 2 positions for the pin – use these to help level the Fan Jet.
The machine must be on level ground or flat surface before tipping the hopper to avoid the hopper
accidently tipping forward once the tipping pin has been removed.
To tip the hopper, remove the pin whilst supporting the hopper, lower gently when emptying the hopper.
PLEASE NOTE
Not required if fitting to
a Central Beam
(see page 41)
Supplied as part of the
UTV fitting kit
(see pages 43)

13
13 Control system overview
WARINING Failure to connect to the vehicle battery may result in control function problems and
possible damage to the vehicle battery. The charging system must be in good condition to achieve the best
results.
All cables and controls are fitted with matching plugs and sockets. Extension cables available from your
local Stocks dealer
WARNING any modification to the wiring, fuse holder or controls will invalidate any warranty claim
and may affect the performance of the Fan Jet. Always replace any blown fuse with the same type and
amp rated fuse as the original one fitted.
Key Features
4.3" (10.9 cm) touchscreen display
supplied with Ram TM mount
Internal 900mb storage and 256mb RAM
1 CAN interface
1 RS 232 for GPS input
1 x USB for data up/down load
Featuring 4 main run screens to enable the user to switch between the home screen with Widget,
parameters screen, details screen and mapping/camera screen.
The “TM” controller is a simple, easy-to-use full colour touchscreen display.
It has a single, compact 4.3-inch touchscreen display that controls all the key functions of the Fan Jet Duo
as well as displaying all the important information.
Featuring 4 main run screens to enable the user to switch between the home screen, parameters screen,
details screen and mapping screen.
The home screen incorporates an integrated widget displaying feedback information regarding disk and feed
motor function. Application rate and forward speed are also displayed along with the cutting-edge feature,
section control.
Section control is a user defined parameter enabling the operator to reduce the disc speed and thus the
spread width down by the single press of an icon on the main home screen for either sides of the machine.
As the disc speed is reduced the application rate is also reduced to match ensuring a consistent application
rate.
Headland mode is another new feature enabling the operator to define the field boundary with the first pass
around the field. The application rate will switch from on to off automatically once a percentage of the
spread width is within the already applied section of the coverage map.
To ensure high levels of accuracy are possible in terms of recording as well as application, the controller’s
software incorporates features enabling products to be ‘created’ and stored, and allowing calibration settings
to be recorded for each new product. In addition, there is a job creation and export feature that enables
each field task to be recorded
The unit is also capable of governing variable rate application in conjunction with an uploaded application
prescription map, which can be observed in real time through the display.

14
14 Electrical Connections
When connecting the system it must be connected to a +12V power supply.
Recommended output voltage is approximately 13.6V.
Ensure the battery is connected to the power supply BEFORE the Powerpod and Instrument
screen are connected.
After connecting the main power supply connect the 3 way COBO plug from the instrument screen power
cable into the tractor cab socket (or connect to a suitable 5 amp supply)
When using a switch mode power supply – ensure that a battery is also connected in parallel to overcome
the limitations of the switch mode power supply.
Always use the heavy duty fused 5m power cable supplied and connect directly to the vehicle battery to
ensure adequate maximum voltage to the spinning discs. The in-
line fuse fitted needs to be 60 amp.
(Ensure the RED fused wire is connected to the positive (+) terminal)
NOTE Extension power and instrument cables available through your local Stocks dealer
S
Instrument
NOTE Powerpods are mounted at the rear of each
hopper unit and can be accessed by removing the
protective cover plate
Each has a single light in the top of the case which
changes colour to indicate the following;
Red light power supply to the unit
Orange light power supply and instrument cable
connected / a canbus signal located
Green/ Flashing system running / machine
operating with power to the feed and disc motors
Power Cable

15
15 Alarm functions
1234
1. Alarm Title
a. The title of the Alarm, it indicates what the alarm is monitoring.
2. Alarm Tripped Status
a. Indicates whether the Alarm has been ‘Tripped’.
b. An Alarm is ‘Tripped’ if it has gone into the ‘Alarm’ state and has not been reset yet.
3. Alarm State Status
a. Indicates whether the Alarm is in ‘Alarm’ or ‘Ok’ state.
b. An Alarm is in the ‘Alarm’ state when it has exceeded a given limit set for the Alarm.
e.g. Speed going over a maximum speed or Tank level going below a minimum level.
4. Alarm Active/Inactive
a. Select this checkbox to turn the Alarm active or inactive
b. A tick in the box indicates the Alarm is active.
WARNING Inactive Alarms will not indicate when their set limits have been exceeded

16
16 Configuration of left and right hand machines
The hopper icons shown on the instrument screen are defaulted for a forward mounted machine
If the machines are to be mounted on the rear please follow the following procedure to switch the on screen
display so that the hopper icons are shown on the correct side
3. Machine
4. Swap Pod Left/Right
NOTE By swapping Pod #1 from left to right Pod #2 will automatically be swapped from right to left
* the display will inform if this operation has been a success or has failed.
1. Settings
2. Maintenance

17
17-2 Spread width and pattern
BASIC RULE. The spread width is dependent upon the density of the granule or seed, and the disc speed
(plus other factors).
Large, dense granules and seeds with a high disc speed give the maximum spread width – small, light
granules and seeds will not spread as far.
Other factors affect the spread width:
Type of slug pellet. Typically, a large, dense hard pellet should spread further than a small, light, soft
pellet, because it is comparatively heavy and does not powder on the disc. Typically, a ‘wet’ produced pellet
will be hardest, a steam produced pellet mid range, and a dry produced pellet the softest.
Seed varieties and dressings. Different varieties and dressings will affect the density and the spread.
Wind Conditions. Dead calm conditions are the optimum; any wind will affect the width pattern.
High forward speed. The same as driving into a headwind of the same speed on a calm day, and this will
peel the edges of the spread pattern backwards and inwards.
Disc speed. Altering the disc speed will affect the width. A higher disc speed will give a wider spread width.
Disc vanes. Ensure they are in good condition and not worn excessively. Replace if necessary.
Low disc height. Will not allow the product to reach its maximum width before gravity takes over.
Low electrical power. Will not allow the disc to reach full speed.
High application rates. Loads the disc more than a lighter rate and can slow it down.
Incorrect disc angle. It must be at least horizontal – not angled downwards.
Ensure the correct Fan Jets are fitted in the correct position – the fixed deflectors fitted to the side of the Fan
Jet chassis should be facing inwards towards each other.
Ensure the disc rotation is correct, when viewed from behind the Left hand side Fan Jet disc should rotate in a
clockwise direction and the Right hand side Fan Jet disc should rotate in an anti-clockwise direction, for
clarification see Disc Rotation arrows on the decal.
The position of where the pellets flow onto the disc will affect where they come off the disc – this will affect the
overall spread width and pattern. Adjustment is provided by rotating the bias dial * factory set at 65 degrees
 The black plastic knob on the side of the chassis secures the bias adjustment.
Unscrew prior to adjustment and then retighten.
 For maximum spread width ensure the disc speed is set to at
full speed.
 Adjust the spread pattern bias so that the two spread patterns
from the left hand and right hand machine meet and overlap in
the middle.
NOTE for most slug pellets applications the spread bias will need to
be set between 60 and 75 degrees.
17-1 Spread bias adjustment

18
18 Setting the working width
1. Settings
2. Maintenance
3. Machine
4. Measurements
5. Setup Spinner Width

19
19 Setting the working width (continued)
6. Select Row 1
7. Click Edit
8. Set Spinner Speed % and Width
This corresponds to speed to a relevant width.
i.e. at 70% of spinner speed, the spread
width is 15m. This is per individual disc.
9. Repeat the above steps for Row 2 100%
On a Duo standard settings would be
100% = 18m Spread width.
2x Sides = 36m Total Spread Width

20
20-1 Setting the feed rate
The feed rate is adjusted primarily by the motor speed. In addition, different feed rollers may be fitted that
deliver different rates of material per revolution. Refer to the Calibration Procedure shown on pages 19-20
and with the appropriate feed rollers fitted, follow the instructions. You may have to change the feed rollers
to obtain the application rate within a sensible forward speed range which is calculated during the calibration
procedure.
STANDARD 8 SECTION FEED ROLLS
Wide 8 section rolls for high rate application and large granules.
The two feed rollers fitted should allow for typical slug pellets application rates.
There are extra feed rollers supplied in the kit and appropriate spacers to allow 1,2 or 3 feed rollers to be
fitted to each feed block to help obtain the correct feed rate required for lower or higher outputs and varying
speeds.
NOTE Optional feed rollers are available for more information please contact your local Stocks dealer
WARNING Always observe all application standards and guidelines provided by the product
manufacturer as some products may be toxic ! If unsure contact your supplier for more
information.
The feed rollers are easily changed by removing the
feed block assembly as follows.
NOTE Empty the hopper completely before doing this
using the tipping facility.
 Undo and remove the 2 black plastic retaining
knobs holding the feed block in place
 Slide the complete mechanism out
 Undo and remove the 4 socket head screws on
the end of the housing opposite the retaining
plate and remove the end plate
 Slide the rolls and spacers off the shaft, and
replace with the alternative rolls and spacers in
the required combination
 Refit the end plates and re-fit the feed block and
black plastic retaining knobs.
20-3 Feed roller configuration
1 x 8 Section Feed Rollers 2 x 8 Section Feed Rollers 3 x 8 Section Feed Rollers
When re-fitting the end plates to the feed block after changing the configuration, the end plate should be able to
fit flush with the feed block by hand, without having to pull it home with the socket head screws.
The assembled rolls and spacers should not be under compression.
NOTE. You should be able to rotate the feed shaft with your fingers – if it feels excessively tight, check the feed
roller and spacer composition is correct as shown above or call Stocks AG for advice.
20-2 Changing the feed rollers