Stocks AG Fan Jet Duo Plus VS-2 65 User manual

1
Read carefully before installation
and operation
Fan Jet Duo Plus VS-2
65 & 130
Original Operating Manual
and Parts List
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: [e-mail] 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
4.1 Contents of the EC Declaration of Conformity 4
4.2 Contents of the UKCA Declaration of Conformity 5
5.1 Machine identification 6
5.2 Warranty 6
6 Safety 7
7.1 Emergency Stop Instructions 8
7.2 Maintenance 8
8 Safety WARNING decals 9
9.1 Clearing a blockage 10
9.2 Hopper Removal 10
9.3 Storage 10
9.4 OPTIONAL Heavy Duty Waterproof Cover 10
9.5 Disposal 10
10.1 Fitting to a vehicle or implement 11
10.2 OPTIONAL Central Beam Assembly 11
10.3 OPTIONAL UTV Fitting Kit 11
11 OPTIONAL Base Mounting Kit 12
12.1 Electrical Components 13
12.2 Electrical Connections 13
13 VS-2 Control Panel 14
14 VS-2 Control Panel Operation 15
15 OPTIONAL GPS Kit 16
16.1 OPTIONAL Hopper Level Sensor 17
16.2 OPTIONAL PVC Waterproof Covers 17
17.1 Setting the feed rate 18
17.2 Changing the feed rollers 18
17.3 Feed roller configuration 18
18 Calibration Hopper 19
19 Calibration (page 1 of 2) 20
20 Calibration (page 2 of 2) 21
21.1 Spread bias adjustment 22
21.2 Spread width and pattern 22
22 Parts drawing 23
23 Parts list (page 1 of 3) 24
24 Parts list (page 2 of 3) 25
25 Parts list (page 3 of 3) 26
26 Central Beam assembly & parts drawing 27
27 Central Beam parts list 28
28 UTV fitting Kit assembly & parts drawing 29
29 Notes page 30
Index

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 VS-2
Hopper capacity: 2 x 65 litre or 2 x 130 litre
65 litre machines: Net weight:90kg Dimensions (W x D x H) 50cm x 56cm x 82cm (boxed 52cm x 58cm x 85cm)
130 litre machines: Net weight:98kg Dimensions (W x D x H) 61cm x 61cm x 95cm (boxed 62cm x 62 x 98cm)
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 12v applicator 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 maximum
spread width is limited to 32m due to the power supply available and height of machine when mounted.
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 prescribed
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 these manual was correct at the time of printing but we reserve the right to change and im-
prove 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
This machine is not designed to apply abrasive materials such as sand & grit or for applying salt products
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.
Please contact us if you still have questions regarding the machine operation before use
Stocks AG Ltd , Cromwell Road, Wisbech, Cambridgeshire UK
Tel: [phone] email: [e-mail]

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
5.1 Machine identification
The machine serial number decal is mounted on the steel chassis to one side of the hopper
5.2 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
6 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.
WARNING Do not put your hands inside the hopper when the disc is
running as the agitator inside the hopper rotates at very 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 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
7.1 Emergency Stop instructions
In the case of an emergency always switch the main power switch to its upper (OFF) position
Then power down and isolate the power sup-
ply immediately by disconnecting the power
cable
7.2 Maintenance
WARNING
Always ensure the power supply is disconnected before any mainte-
nance 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. Check the feed block assembly’s to ensure the feed rollers are clean and replace any worn feed rollers
4. Check the feed rollers rotate freely 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 block assembly’s to ensure the feed rollers rotate freely
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 !
Main Power
On-Off switch

9
8 Safety WARNING decals
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
machine 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 mechanisms are
powerful and can cause serious injury

10
9.1 Clearing a blockage
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.
Empty the hopper of any remaining product
9.2 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 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 the hopper ensure the Gasket fitted
under the base of the hoper is in good order
Replace if damaged; part number FJ017S
9.3 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
and feed block assembly’s are free of product 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.
9.4 Optional PVC Waterproof Covers
Heavy duty White PVC covers fitted with eyelets and bungie cord for easy attachment available for all
machines (see page 16)
Please contact your locals Stocks AG dealer for more information
9 .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
10.1 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 im-
prove the maximum spread width.
(minimum disc height of 2m required for 36m work)
10.2 Optional Central Beam Assembly
Central Beam; Part No. FJ-005-BEAM-600 (available through your local dealer)
10.3 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 vehicle.
For more information
see page 28
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 26

12
11 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 10)
Supplied as part of the
UTV fitting kit
(see pages 10)

13
12.1 Electrical Components
12.2 Electrical Connections
The Fan Jet is supplied with a control panel and all wiring.
Ensure the power supply cable (10) 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. NOTE Power requirement 12 volts with a minimum continuous 55amp supply.
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 (please enquire)
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
1. Cab Control Panel
2. Junction box (mount in central of mounting beam or fix to mounting plate B on the UTV frame)
3. Left hand machine (ACW) disc motor and feed motor power cables
4. Right hand machine (CW) disc motor and feed motor power cables
5. Calibration switch and wiring loom
6. Control cable connection
7. Power cable connection
8. GPS sensor connection
9. 6m control extension cable (not shown)
10. 5m fused power cable
11. 5m power cable extension (not shown)
NOTE Power and Control extension cables available
23
4
5
6
7 8

14
13 VS-2 Control Panel
A simple and effective manually operated electric control used to instantly start and stop the feed motor at
headlands, and uses a dial control to set the feed motor speed and thus the application rate. It is not linked to
forward speed so once calibrated the operator drives at a consistent forward speed to maintain the rate, or can
manually increase or decrease application rates on the move using the dial.
NOTE optional GPS Kit available to link the application rate to forward speed (see page 12)
The console is intended to be used in a waterproof in-cab environment, and should be mounted in a convenient
position using the mounting clips provided. Do not drill or open the box.
The console connects to the main junction box via a waterproof connector in the control cable, and remains live
unless this control cable or the main power cable is disconnected. Extension connector cables are available if
required.
The control console has 4 x toggle switches, and 2 x 12 position rotary dials and 3 LED’s, which are used to
control the spinning discs and the variable speed 12v feed motors.
The LED lights above each of the toggle switches indicate the status of the function.
1. Feed Motor Alarm 2. Feed Motor Run Hold Warning 3. Disc Motor Alarm
= System OK = Stop and investigate cause. An audible alarm will also indicate a change of status.
A. FEED MOTORS ON/OFF CONTROL & CALIBRATE. The toggle switches positioned on the left hand side of
the console operate the feed motors, the central position is off, down to the (I) is on and (C) is to calibrate when
in the field relative to forward speed if fitted with a GPS Speed sensor (optional extra)
B. FEED MOTORS LEFT AND RIGHT CONTROL The toggle switch is in the central position when in work,
each side can be turned ON and OFF independently for border control and short work. In the raised position the
left hand side is off, lower position the right hand side is off (remember this is from the driving position of a
self-propelled sprayer with the Fan Jets mounted on the front)
C & D. FEED MOTORS VARIABLE SPEED CONTROL. The 3 position toggle switch to the left of the centre
rotary dial selects the speed range of the feed motors. This switch and the dial are used in combination to select
the feed motor speed, and thus the application rate. The 3 position switch selects the speed range, the
uppermost position is High Range, middle position is Mid Range, and the lowermost position is Low Range, and
12 speeds in each range allows a total of 36 different motor speeds. Use the speed ranges and dial to increase or
decrease seeding rate as required.
E. SPINNING DISC CONTROL ON/OFF Both spinning discs are switched ON or OFF by the toggle switch
positioned to the right hand side of the console – both discs start and stop together.
F. SPINNING DISC SPEED CONTROL The speed of the discs is controlled by the 12 position rotary dial
positioned to the right hand side of the console – maximum speed and thus maximum spread width is achieved
in position 12, and reducing the disc speed will reduce the spread width – both discs run at the same speed.
A
12
B D
3
E FC

15
14 VS-2 Control Panel Operation
STANDBY MODE
With both the power and console control cable connected, and all toggle switches in the OFF position, the Fan Jet
will be in standby mode, ready for work. The green LED to the right hand side will pulse slowly indicating power
connection.
NOTE the current consumed when the Fan Jet is in standby is negligible and these cables can remain connected
overnight or for many days without the vehicle being used with no problems. However, if the vehicle is not to be
used for several weeks, we recommend the power cable is disconnected.
RUN HOLD MODE
Select the required disc speed using the speed dial (F) setting 12 giving the maximum disc speed / spread width
Select the required feed motor speed and range to give the correct application rate for your forward speed and
working width. For calibration instructions see pages 19-20
Switch the feed motor toggle switch X to ON.
The unit is now powered up and enabled.
RUN MODE
Switch the disc ON/OFF toggle switch (E) to ON (I), both discs will run at the speeds selected. To start product
feeding move the toggle switch
A to start the feed motors, LED # 1 status will now be continuous green.
At headlands to turn both the feed motors OFF, switch the feed motor switch (B) to the central position (the discs
remain spinning)
The LED status will be slow pulse red and the audible alarm will sound until switched to ON.
To turn the Left Hand or Right Hand feed motor ON or OFF for border control or short work, move the toggle
switch (B) to the appropriate position, the raised position the left hand side is off, lower position the right hand
side is off (remember this is from the driving position of a self-propelled sprayer with the Fan Jets mounted on
the front) The LED status will be slow pulse red and the audible alarm will sound until switched to ON.
In work, if either the feed motor speed or the spinning disc speed is altered from the initial settings, the LED
status will change to rapid pulse red and rapid audible alarm will sound until the original settings are re-selected.
If the speed change is intended to be permanent for the remainder of the field – briefly switch the discs to OFF
for approximately 2 seconds only, until the green LED turns off, then switch the discs back ON and the alarm
status should be cancelled and the green LED should be continuous.
To stop the Fan Jet – switch the disc ON / OFF toggle switch (E) to the upper position to power down the machine
and it will return to Standby Mode.

16
15 Optional GPS Kit
Part No. TJ-004-GPS-KIT
If the machine is not being used with this GPS speed sensor – this operation will not be necessary as the
machines will operate at a fixed output to match a fixed forward speed and this speed must be maintained – this
is the speed used in the calculation – it will NOT be speed proportionate metering.
NOTE - This calibration can only be done after the application rate has been set as described on pages 20-21
It will not work if it is done prior to calibrating the machine.
This speed calibration is done in the field, on the move at the same speed used in the application rate calcula-
tion, and the small white circular GPS receiver mounted on the top of the LHS Fan Jet chassis will register the
actual forward speed, and the VS-2 will then match the rate to the speed.
PROCEDURE
1. Set the main power ON/OFF – disc ON/OFF switch (E) to the lower ON position
2. Set the feed motor switch (A) to the mid OFF position – not spreading for this calibration
3. All other switches and dials are positioned where they are following the application rate calibration
4. Ensure that both green and red LED’s are showing on the Black inline Satspeed2 box that is positioned on
the rear upright of the LHS chassis – a solid green LED indicates that the GPS receiver has power and a solid red
LED indicates it is receiving signals from GPS satellites
5. Drive forward and accelerate until the “calibrated speed” is reached – indicated using the vehicle speedome-
ter or radar or GPS – this is the speed used during the catch and weigh test – maintain this speed and press and
hold upwards the spring loaded toggle switch (A) until two solid green LED and one solid red LED appear, and
you will hear an audible alarm to indicate that it has calibrated successfully.
6. Release the switch
The VS-2 has now registered the signal from the GPS receiver at this speed and now knows that it has to bal-
ance the signal from the feed motor (established during the catch and weigh test using this same speed as the
target field speed) to the signal from the GPS running at this actual field speed – from now on it will maintain
the proportion between the two. If for any reason it cannot do this – an alarm will sound and a red LED will
light – for example, this could happen if the feed motor needs to run faster as the forward speed increases, but
the motor is at the limit of its performance and cannot increase RPM further. This example is when a change of
feed rollers needs to be considered to meter more grams per revolution to allow the motor to run slower for the
same application rate.
Once this Speed Calibration is done, your machine is ready for work and will operate at varying forward speeds
maintaining your calibrated application rate. Providing all LED displays are green and the alarms silent in
normal work – everything will be working correctly. If the feed motor cannot achieve the required speed to
maintain the rate, an alarm will sound and a red LED will light.
If the application rate or disc speed is changed whilst on the move by increasing or decreasing the feed or disc
motor speeds using the appropriate dials – a rapid pulsed red LED will light and the alarm will sound to remind
you that the original settings are changed and will remain on until they have been returned to the original
setting.
Turn the feed motors ON and OFF as required using toggle switch (A) using only the mid to low position – not
the spring loaded upper position. This will start and stop both Fan Jets together unless you have chosen to
switch off one side or the other using the independent LHS/RHS feed control switch.
If a new product calibration or target field speed is needed, then this speed calibration will need to be repeated.
NOTE. when calibrating for a new application rate, or a new forward field speed – first disconnect
the main power cable to the Turbo Jet for at least 10 seconds – this will cancel the memory of previ-
ous calibrations and allow new settings to be used.
For best results and to avoid over applying product we recommend the
machine is fitted with this optional GPS Kit as this will give speed
proportionate metering of pellets, maintaining the pre-set application
rate in line with forward speed changes – if the system is not able to
maintain the rate, it will alarm and alert the operator.
WARNING this GPS kit must be used as the control system is
not designed to work with the signal generated from a standard GPS
receiver or Ground Speed Radar.

17
16.1 Optional Hopper Level Sensor
Part No. TJ-004-HLS-KIT
This optional hopper level sensor can be fitted to one of the two hoppers
The alarm will sound once the product in hopper drops below the level of the sensor
Recommended if the hopers are not in full view of the operator
16.2 Optional PVC Waterproof Covers
Heavy duty White PVC covers available in pairs
65L Waterproof PVC Covers Part No. LC65DUOPAIR
130L Waterproof PVC Covers Part No. LC130DUOPAIR
Fitted with eyelets and bungie cord for easy fitting
Recommended to be fitted when machines are not in use.
Please contact your locals Stocks AG dealer for more information
Stocks AG Ltd , Cromwell Road, Wisbech, Cambridgeshire UK
Tel: [phone] email: [e-mail]

18
17.1 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 20-21 and
with the appropriate feed rolls 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 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 knobs.
17.3 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.
17.2 Changing the feed rollers

19
18 Calibration Hopper
Fitting Instructions
1. With an empty hopper, remove the feed block assembly
from one of the Fan Jets.
2. Slide the Calibration Hopper into the Fan Jet in place of
the feed block with the hopper uppermost, ensure the drive
shaft aligns and secure with the supplied screw knobs.
4. Secure with the two small blacks PVC knobs supplied.
3. Insert the (removed) feed block into the Calibration
Hopper, ensure the drive shaft aligns by slowly rotating the
feed shaft
5. Place a suitable container under the Calibration Hopper to collect pellets whilst calibrating
Supplied as standard with this
machine (packed in hopper)
Part No. FJ-005-CAL-DUO

20
Working from the left hand side
1. Set the feed motor ON/OFF toggle switch to the lower
ON (I) position
2. Set the LHS/RHS feed motor toggle switch to the low-
er RHS OFF position - NOTE - remember to set this switch to
the mid position after calibration to turn both feed motors ON
for in field work.
3. Set the feed motor speed range toggle switch to mid
(Mid Range) position (if the initial calibration)
4. Set the feed motor speed rotary dial to position 6 (=
mid speed setting 18 of 36 if the initial calibration)
5. Set the main power ON/OFF – disc ON/OFF toggle switch to upper OFF position
6. Set the disc speed rotary dial to position 1 – this sets the system in calibrate mode, ready for the catch
and weigh test (as below) – NOTE - remember to increase this disc speed after calibration towards position 12,
when spreading in the field – check spread the spread width is satisfactory
NOTE The discs should not be turning, and the RHS feed motor should not turn.
NOTE The RHS Fan Jet can be calibrated if desired by setting the LHS/RHS feed motor toggle switch to the
upper LHS OFF position, and repeat holding down the spring loaded calibrate switch – this time only the RHS
feed motor should turn.
Generally it is not required to do this as both Fan Jets will meter the same amount of product provided they are
fitted with the same feed rolls – so calibrating just one Fan Jet (the LHS normally) for full rate at half width and
ensuring the other has the same feed rolls should be satisfactory
CATCH AND WEIGH TEST
FEED MOTOR SETTINGS AND SPEEDS (RPM)
At this stage only put a small amount of product in the calibration chute - do not fill in case the feed
rolls have to be changed to achieve the rate (kgs/min) When you are ready to begin, use the spring load-
ed Calibrate Switch to start and stop the feed motor.
CALIBRATE SWITCH
Hold down the spring loaded switch mounted on the lower rear of
the LHS Fan Jet chassis for a couple of seconds – “HOLD DOWN
SWITCH TO CALIBRATE” – the LHS feed motor should start to rotate
and turn the feed block in the calibraon chute as long as the switch
is held down – check this works correctly – release the switch to stop
1. Run the feed motor for the required time.
2. Weigh the collected amount in kilograms
3. Refer to the calculated amount for your rate/
width/speed required (see page 17)
4. Use the High, Mid or Low speed range, and the
speed dial to increase or decrease the rate accord-
ingly and repeat the procedure until the correct
output for your machine width and forward speed is
reached. NOTE SETTINGS FOR FUTURE REFERENCE
5. Change the feed roll configuraon if required to
achieve the applicaon rate in the mid range motor
speed if possible - rather than running very slow or
fast – this allows a greater chance of the rate being
changed to match increase or decreases in forward
speed in the field.
If you do not run the catch test for 1 minute – for
example only 30 seconds – then you only need to
collect half the amount indicated in the calibraon
formula.
LOW RANGE
Sengs 1 - 12
MID RANGE
Sengs 13 -24
HIGH RANGE
Sengs 25-36
Dial
seng
Speed
RPM
Dial
seng
Speed
RPM
Dial
seng
Speed
RPM
16 1 (13) 24.48 1 (25) 42.96
27.54 2 (14) 26.02 2 (26) 44.5
39.08 3 (15) 27.56 3 (27) 46.04
410.62 4 (16) 29.1 4 (28) 47.58
512.16 5 (17) 30.64 5 (29) 49.12
613.7 6 (18) 32.18 6 (30) 50.66
715.24 7 (19) 33.72 7 (31) 52.2
816.78 8 (20) 35.26 8 (32) 53.74
918.32 9 (21) 36.8 9 (33) 55.28
10 19.86 10 (22) 38.34 10 (34) 56.82
11 21.4 11 (23) 39.88 11 (35) 58.36
12 22.94 12 (24) 41.42 12 (36) 59.9
19 Calibration (page 1 of 2)