Stocks AG Fan Jet Pro User manual

Fan Jet Pro - Operating Manual & Parts List P1
Fan Jet Pro
Revision 2 08/2022

Fan Jet Pro - Operating Manual & Parts List P2
Index
Section Page
E.C. DECLARATION OF CONFORMITY 4
UKCA. DECLARATION OF CONFORMITY 5
1.0 General information 6
1.1 Technical Data 6
1.2 Intended Use 6
1.3 Unintended Use 6
1.4 Machine Identification 7
1.5 Warranty 7
2.0 Safety 8
2.1 Safety WARNING Decals 9
3.0 Emergency Stop Instructions 10
4.0 Storage 10
5.0 PVC Waterproof Covers 10
6.0 Disposal 10
7.0 General Maintenance 11
7.1 Before Use 11
7.2 Daily Check 11
7.3 After Each Use 11
8.0 Installation Guide 12
8.1 ATV Fitting Kit 12
8.2 UTV Fitting Kit 12
8.3 Mounting Plate 13
9.0 Hopper Emptying Procedure 14
9.1 Clearing a Blockage 14
10.0 Electrical Components 15
10.1 Electrical Connections 15
11.0 Control System Operation 16
11.1 Remote Switch Facility 16
12.0 Wiring Diagram 17
13.0 Spreading slug pellets 18
13.1 Spreading Seed 18
14.0 Setting the Feed Rate 19
14.1 Setting the Spread Bias 19

Fan Jet Pro - Operating Manual & Parts List P3
Section Page
15.0 Spread Width and Pattern 20
16.0 Setting the Headland Deflectors 21
16.1 Calibration Chute 22
17.0 Grass Seed Agitator 22
18.0 Grass Seed Deflector Kit 23
19.0 Product Calibration 24
19.1 Slug Pellet Calibration 25
19.2 Grass and Rape Seed Calibration 26
20.0 FAN JET PRO Parts Diagram 27
20.1 FAN JET PRO List 28
20.2 FAN JET PRO List 29
21.0 Fault Finding 30
Index

Fan Jet Pro - Operating Manual & Parts List P4
E.C. DECLARATION OF CONFORMITY
Machine Type: Mounted Agricultural Implement - Pellet and Seed application broadcasters
Model(s): Fan Jet Pro All Variants and Versions
Fan Jet Pro Plus All Variants and Versions
Fan Jet Twin All Variants and Versions
Fan Jet Mini All Variants and Versions
Fan Jet Duo All Variants and Versions
Turbo Jet All Variants and Versions
Rotor Meter All Variants and Versions
Rotor Meter Air Force All Variants and Versions
Micro Meter All Variants and Versions
Maxi Meter All Variants and 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 – General principles for design – Risk
assessment and Risk reduction.
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 being 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]

Fan Jet Pro - Operating Manual & Parts List P5
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]

Fan Jet Pro - Operating Manual & Parts List P6
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.
1.0 General Information
1.1 Technical Data
65 litre machine:
Net weight: 30kg
Dimensions: (WxDxH) 50 x 56 x 82cm
(boxed 52cm x 58cm x 100cm)
130 litre machine:
Net weight: 35kg
Dimensions (WxDxH) 52cm x 60cm x 90cm
(boxed 52cm x 62 x 94cm)
1.3 Unintended Use
Congratulations on your Fan Jet Pro 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.
Max. spreading width (Slug Pallets): 24m
Recommended working width (Slug Pallets): 12 -24m
Operating voltage: 12v
This 12V applicator has been designed for use in the agricultural, horticulture, and amenity sector to apply
large dense slug pellets from 12 -24m and various small seeds and granular products to varying widths
depending upon the seed or product density. Can also be used for game cover cropping and as a game feeder.
The applicator can be mounted to operate facing forwards or backwards. Often mounted on the rear of drills
and sets of rolls to apply slug pellets.
Any other use is considered to be non-intended and the manufacturer will not be liable for any resulting
damage.
The operator alone bears the associated risk if used for non-intended 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 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 are 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.
Designed solely for use in agricultural and amenity operations (intended use). 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 prescribed within this instruction
manual:
This machine is not designed to apply abrasive materials such as sand & grit or for applying salt products
1.2 Intended Use
Power requirement: 20 amps
Motor outputs: 170 watt
Max. disc speed: 3700 rpm
Noise level: 90dB
Model: Fan Jet Pro Standard (fixed disc speed) and Fan Jet Pro Vario (adjustable disc speed)
Hopper capacity: 65 litre or 130 litre
NOTE: It is the responsibility of the operator to ensure the appropriate personal protection
equipment be worn for the material being applied. If unsure contact the material supplier for more
information.

Fan Jet Pro - Operating Manual & Parts List P7
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.
In the event of any problems, or before attempting any repair please contact the company from where
the machine was purchased. 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 ……………………………….
1.5 Warranty
1.4 Machine Identification
The machine the serial number decal is mounted on the steel chassis to one side of the hopper

Fan Jet Pro - Operating Manual & Parts List P8
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 will 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 on 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
engineer to ensure safe handling of the machine and the appropriate personal protection
equipment is worn for the material being applied and to prevent contamination to the machine or
the environment.
WARNING Ear protection required if working in close proximity to the machine as it
exceeds 80dB.
WARNING Always observe all application standards and guidelines provided by the product
manufacturer as some seed dressings and granular products may be toxic.
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 a UTV vehicle ensure
the stability of the parent vehicle is not affected when the machine is in use. If in doubt contact the vehicle
manufacturer for more information. 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.
WARNING Always adhere to the warning information and do not remove
any guard whilst the machine is in operation.
WARNING Do not put your hands inside the hopper when the agitator
motor is turning as the agitator shaft inside the hopper rotates at high speed
and is sharp and dangerous.
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 or during thunderstorms. Observe the generally
applicable safety and accident prevention regulations. Always 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
2.0 Safety

Fan Jet Pro - Operating Manual & Parts List P9
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 machine when
in operation.
Wear the appropriate protective personal
equipment.
WARNING
Risk of injury.
Be aware the feed mechanism is powerful and
can cause serious injury.
WARNING
Do Not Jet Wash This machine is not designed
to withstand Jet Washing.
2.1 Safety Warning Decals
Important; Be aware of the safely warning below which are all relevant to this machine

Fan Jet Pro - Operating Manual & Parts List P10
In the case of an emergency always switch off the main power switch on the control panel and
isolate the power supply immediately by disconnecting the power cable
Main Power
On-Off switch
3.0 Emergency Stop Instructions
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.
5.0 PVC Waterproof Covers - Optional
Heavy duty White PVC cover fitted with eyelets and bungie cord for easy attachment.
Please contact your locals Stocks AG dealer for more information
130L Waterproof PVC Cover Part No. LC130
65L Waterproof PVC Cover Part No. LC65
Disconnect the power supply by unplugging the power cable or removing the 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 and 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.
6.0 Disposal
4.0 Storage

Fan Jet Pro - Operating Manual & Parts List P11
1. Check the disc to motor shaft socket screws 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 for any wear or distortion and replace prior to use if necessary
3. Check the feed block assembly to ensure the feed rollers rotate freely
WARNING Always ensure the power supply is disconnected before any maintenance work or
cleaning of this machine by unplugging the power cable or removing the 40amp fuse in the
power cable.
Ensure the parent machine is stationary and parked on level ground before working on the 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.
WARNING
Protective clothing must be worn when applying or handling toxic products.
Always observe all guidelines provided by the product manufacturer with regards to handling, storage and
disposal of products.
Take care not to spill any product that could contaminate the machine or the environment, ensuring any
product removed from the machine is put back into its original container.
WARNING
DO NOT JET WASH THIS MACHINE
7.0 General Maintenance
7.1 Before Use
7.2 Daily Checks
7.3 After Each Use
1. Empty hopper and clean the machine thoroughly
2. Disconnect the power supply
3. Replace the PVC waterproof cover (if applicable)
4. Store in dry conditions to protect the machine and control system from moisture
1. Ensure the machine is securely mounted
2. Check the power supply.
3. Check the feed block assembly to ensure the feed rollers are clean and replace any worn feed rollers
4. Check the feed rollers rotate freely before starting work

Fan Jet Pro - Operating Manual & Parts List P12
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.
If unsure seek advise from the parent machine manufacturer or supplier.
Locally fabricated mounting frames are not the responsibility of Stocks AG Ltd.
NOTE: the machines can be operated facing forwards or backwards.
Ensure the disc height is a minimum of 1 metre above the crop canopy or the ground – more height may
improve the maximum spread width.
Ensure the power cable is connected direct to the parent vehicle 12v battery and the fuse is fitted correctly.
Always adhere to Health and Safety guidelines when mounting or fabricating an
appropriate mounting frame and always wear suitable protective clothing.
WARNING
the control panel is not waterproof and so will need to be protected.
The cost option UTV kit available for most UTV
fitments. Offering a sturdy fitting option with 4 hooked
anchor points with hand release fittings. One piece
tubular steel construction with
detachable machine mounting plate. Fixed fork lift
point safe and easy lifting on and off vehicle.
WARNING Always check specification of any ATV rear carrier before ordering
8.0 Installation Guide
8.1 ATV Fitting Kit- Optional
The Stocks ATV Kit provides a quick and easy way to
attach your Fan Jet to the rear carrier of your ATV.
Designed as a universal fitment to elevate the Fan
Jet to gain more height to the spinning disc. The
formed steel base plate with quick fit clamps and
jacking screws to mount the machine to the base
plate and to adjust the angle of the disc when the
ATV is fully laden.
The kit includes an operator protection plate which
bolts onto the back frame of the machine plus a
short power and connector cable to maximise the
power at the disc motor.
These are to be fitted rather than the standard
length cables supplied with the Fan Jet
machine.
Many rear carriers will not have the load
carrying capacity to support the weight of a fully
laden Fan Jet mounted on an ATV kit. Please
check with your ATV supplier as modification
may be available.
8.2 UTV Fitting Kit- Optional
Part No. FJ-005-UTV (available through your local dealer)
ATV fitting Kit available; Part No. FJ-005-BKT (available through your local dealer)

Fan Jet Pro - Operating Manual & Parts List P13
Additional Base Plates available; Part No. FJ514A
Mount the machine using the tipping base plate. This has 4 holes in the base to take M12 bolts (see below)
use these to attach to the parent vehicle. 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. 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.
8 . 3 M o u n t i n g P l a t e

Fan Jet Pro - Operating Manual & Parts List P14
Switch off the main power switch on the control panel
Ensure the parent machine is stationary, switched off, and parked on level ground
Ensure the main power switch on the control panel is off and unplug the 2 core power supply cable from the
control box or disconnecting the power cable from the vehicle battery.
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.
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 applied.
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 he hopper ensure the Gasket fitted under the base of the hoper is in good
order.
Replace if damaged; part number FJ017S
9.0 Hopper Emptying Procedure
9.1 Clearing a Blockage

Fan Jet Pro - Operating Manual & Parts List P15
10.0 Electrical Components
1. FJ057D Disc Motor
2. FJ117B Fixed Disc Seed Control Panel
or
2. FJ114B Variable Disc Speed Control Panel
3. FJ109C Tail Piece
4. FJ051C Shutter Mechanism “Slave Motor”
5. FJ107D Fused Power Cable - 5m
6. FJ108D Control Connector Cable - 6m
*Optional cables available
Power requirement is 12 volts with a minimum continuous 20amp supply. The Fan Jet is supplied with a
control console and all wiring.
Ensure the power supply cable is connected direct to the vehicle battery to ensure maximum power.
Connect the positive wire (fused) to the positive (+) terminal and negative earth connection to the negative (-)
terminal. The disc should rotate in a clockwise direction when viewed from above
WARNING Failure to connect to the vehicle battery may result in control function problems
and possible damage to the vehicle battery and 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.
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 amp rated blade type fuse as the original one fitted.
10.1 Electrical Connections

Fan Jet Pro - Operating Manual & Parts List P16
1. Main Power Switch
2. Feed Mechanism Switch
NOTE: The feed switch will not operate without the disc motor running.
3. 12-position dial (3) Vario control console only used to increase or decrease the speed of the disc.
Can be used to match the spread width to an implement or bout width. Also useful when applying slug
pellets to a 12m working width or broadcasting seeds.
Both panels are supplied with self-adhesive Velcro strips to attach the console to a suitable surface.
11.0 Control System Operation
11.2 Remote Switch Facility
The spare “White wire” from the control panel can be earthed to negative (-V) via a suitable remote switch
to offer remote feed shutter operation if required. This wire not connected in normal working
situations.
WARNING DO NOT connect the “White wire” to positive (+V) as this will damage the panel
and invalidate the warranty
A cost option interface is available if the White wire needs to be earthed to positive (+V) Part No. FJ-004
RSI.
Standard / Fixed Disk - Pt No. FJ117B Variable Disk Pt No. - FJ114B
Fixed Disk
• 1) Left Hand Toggle Switch - Main Power and
Disk on / off
• 2) Middle Toggle Switch - Feed shutter on / off
Variable Disk
• 1) Left Hand Toggle Switch - Main Power and
Disk on / off
• 2) Middle Toggle Switch - Feed shutter on / off
• 3) Right Hand Dial - Variable Shitter Speed
WARNING Ensure the position and operation of the control panel does not affect the visibility
of the operator or the ability to control the parent machine.
11.1 Cab Control Panel

Fan Jet Pro - Operating Manual & Parts List P17
1 2.0 W i r i n g D i a g r a m

Fan Jet Pro - Operating Manual & Parts List P18
It is important that you always test the pellets through the Fan Jet to establish the spread width and
pattern before you go to work and to enable you to calibrate the Fan Jet. Be aware the spread
pattern could be thinner towards the outer edges.
It is the responsibility of the operator or maintenance persons handling the machine to ensure the
appropriate personal protection equipment be worn for the material being applied or
contaminating the machine and to ensure that no other persons enter the spreading zone whilst
the machine is in operation.
Always observe all application standards and guidelines provided by the manufacturer of any product as some
products are toxic !
Our advice is do not restrict the spreading width in any way except for headland control, and to calibrate for
and drive at your desired bout width and accept any overlap between bouts during in-field work.
NOTE: If using crop sprayers at fixed tramline widths, be aware that these may not match the
spreading width, and the spread pattern could be thinner towards the outer edges.
NOTE: If using an ATV, it is better to work at half the tramline width to achieve a good spread
pattern with overlap between bouts, even at high speeds. *Our purpose built ATV kit
recommended as this includes a short electrical cables to maximise performance .
Practice good husbandry to minimise crop damage. Apply pellets before, during, or immediately after drilling
or planting operations, especially where weather and soil conditions may result in a high slug population, and
for susceptible crops such as OSR, especially double low varieties. Inspect crops and re-apply pellets as
required.
Use the Fan Jet to spread many small seeds such as; grass, rape, mustard, turnips, other seeds and granular
products that flow freely through the feed aperture. The spread width will depend on the size and density,
actual widths may be more or less depending upon disc speed.
It is the responsibility of the operator to ensure that no other persons enter the spreading zone
whilst the machine is in operation.
It is important that you always test the seed through the Fan Jet to establish the spread width pattern before
you go to work, and to enable you to calibrate the Fan Jet. Grass Seed can be spread to a 6m working
width.
NOTE: An optional grass agitator is available to assist when spreading grass seed to help prevent
seed bridging in the hopper.
Grass Seed Deflector Kit recommended if fitting to a grass harrow or similar implement. Designed to enable
the seed to be directed across the spread width rather than be spun out in an arc to help reduce wind
disturbance.
NOTE Stop after a few metres work to ensure the distribution, spread width and application rate
are correct - Then check periodically.
13.1 Spreading Seed
13.0 Spreading Slug Pellets

Fan Jet Pro - Operating Manual & Parts List P19
To adjust the feed rate, undo the black plastic locking knob at the centre rear of the hopper and slide the
feed regulator plate to the required setting, reading from the 0-10 scale decal. Re-tighten the locking knob.
Position 10 is the highest feed rate with the feed apertures fully open as shown in the photo below
NOTE we recommend you carry out your own product calibration test for each product and
application rate.
Feed scale
The complete feed mechanism can be rotated to bias the spreading arc to the left or right, and even out the
spread pattern equally from the centre-line of the machine for in-field work, and as a headland control at
field borders. To adjust, undo the black plastic locking knob on the side of the machine and using the
stainless steel motor cover, rotate the complete circular mechanism as far as required, moving the indicator
dimple in the direction in which you want the arc to swing. Re-tighten the locking knob.
Locking Knob
Locking Knob
14.0 Setting the Feed Rate
14.1 Setting the Spread Bias
(Factory set at 90 degrees)

Fan Jet Pro - Operating Manual & Parts List P20
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. However, the line
between traditional ‘mini’ pellets and ‘full size’ is blurred as most are of similar size and some lower priced dry
produced pellets termed, as ‘minis’ are actually larger and heavier than more expensive wet produced pellets,
and can have a good spreading characteristics.
Seed varieties and dressings. Different varieties of seeds and seed dressings will have different densities
and so the affect the maximum spread width possible.
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. If the Vario control console is used, altering the disc speed will affect the width and pattern.
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.
Part No. FJ009B includes 2 vanes and fixings (available through your local dealer)
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.
Spread bias. This can be adjusted to centralise the pattern, left and right of centreline.
Adjustable deflectors. We do not recommend that these are used for in-field work but only for the headland
control on the outside bouts.
However it is possible to adjust them to restrict the width overall or just one side, but they may cause increased
breakage of the granules or seed damage.
Our advice would be to use them in conjunction with the Vario control panel where this is used to reduce the
disc speed and the deflectors positioned to help limit the spread width.
15.0 Spread Width and Pattern