Stocks AG Turbo Jet 8 VS-2 User manual

1
Turbo Jet 8 & 10 VS-2
Original Operating Manual
and Parts List
Read carefully before installation
and operation
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] Fax: [phone] www.stocks-ag.co.uk
Original Instructions, Revision 1 August 2020

2
Index
Section Page No.
2 Index 2
3.1 - 3.2 General information & Technical data 3
3.3 - 3.4 Intended use & Unintended use 3
4 Contents of the EC Declaration of Conformity 4
5.1 - 5.2 Machine identification & Warranty 5
6 Safety 6
7 Safety WARNING decals 7
8.1 - 8.4 Emergency stop, Storage, Optional covers, Disposal 8
9 General maintenance 9
10.1 Installation guide Page 1 of 2 10
10.2 Base plate 10
11 Installation guide page 2 of 2 11
12 Machine components 12
13.1 12v Fan inspection 13
13.2 Feed block assembly inspection 13
14.1 Hopper emptying procedure 14
14.2 Clearing a feed hose blockage 14
14.3 Checking the feed motor 14
15.1 VS-2 Control System overview 15
15.2 VS-2 Control cost options 15
16 VS-2 Control system operation 16
17 Electrical components 17
18.1 Optional - Feed motor cut out switch 18
18.2 Optional - Hopper level sensor 18
19 Optional - GPS speed sensor kit 19
20 Feed block assembly guide 20
21.1 Optional - Feed block assemblies 21
21.2 Hopper baffle plate 21
22 VS-2 Calibration 22
23 Calibration - (continued) 23
24 Calibration completed 24
25 Turbo Jet VS-2 - Parts drawing 25
26 Turbo Jet VS-2 Parts list (1 of 3) 26
27 Turbo Jet VS-2 Parts list (2 of 3) 27
28 Turbo Jet VS-2 Parts list (3 of 3) 28
29 Feed Roller Kits - Parts drawing 29
30 Feed Roller Kits - Parts list (1 of 2) 30
31 Feed Roller Kits - Parts list (2 of 2) 31
32 NOTES 32

3
3 .1 General information
Congratulations on your Turbo Jet 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: Turbo Jet 8 VS-2 and Turbo Jet 10 VS-2
Hopper capacity: 240 litre or 400 litre
240 litre machine: Net weight: 90kg with Spreader Kit 120kg Dimensions (W x D x H) 66 x 100 x 116cm
400 litre machine: Net weight: 95kg with Spreader Kit 130kg Dimensions (W x D x H) 66 x 100 x 143cm
Max. spreading width: Turbo Jet 8: 8m Turbo Jet 10: 10m
Recommended working width: Turbo Jet 8: 3-8m Turbo Jet 10: 3-10m depending on the application
Operating Voltage 12v; Power requirement 30 amps Motor output: 360 watt
Power consumption of the motor: 35 amps when starting, up to 30 amps during normal operation
Noise level : 70 dB
3.3 Intended use
This 12v applicator has been designed solely to apply small seed and granular products for use in the
agricultural, horticulture and the amenity sector.
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 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 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
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: [email protected]

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. [email protected]

5
5.1 Machine identification
CE
The machine can be identified by the serial number decal mounted on the steel chassis to the left of
the feed cassette
5.2 Warranty
We provide a 12 month warranty as of the date of invoice
(your invoice for the machine which 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
attempting 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 ……………………………...

6
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 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 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 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
If unsure contact the material supplier for more information.
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

7
7 Safety WARNING decals
Important ; observe this safely decals on the machine
WARNING
Read and understand the Operators Manual
instructions before operating this machine
Operator errors can result in serious injury
WARNING
Danger moving parts
Risk of serious injury whilst the machine is
in operation
WARNING
Do Not Jet Wash
This machine is not designed to
withstand Jet Washing !
WARNING
Risk of injury
Keep a safe distance whilst the
machine is in operation

8
8.1 Emergency stop instructions
1. Power down the control system immediately by switching the main power switch to the middle
setting marked “O” on the cab mounted control panel
2. Disconnect the power supply by unplugging the power cable or removing the 40amp fuse.
“POWER OFF”
SWITCH
POSITION
8.2 Storage
Disconnect the power supply by unplugging the power cable or by removing the 40amp fuse fitted in the
power cable.
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.
Fit the PVC waterproof cover (if available)
Ensure feed blocks are free to turn and all electrical cables checked following periods of storage.
8.3 Optional PVC waterproof covers
Heavy Duty White PVC covers available for both the 240L and 400L machines
Fitted with eyelets and bungie cord for easy attachment
Please contact your locals Stocks AG dealer for more information
8.4 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
contained 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.

9
9 General maintenance
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
(See page 6 )
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.
Before use
1. Ensure the machine is securely mounted
2. Check the power supply and ensure the power cable is connected direct to the vehicle battery
3. Check the feed block is configured correctly and free running before starting work
Daily checks
1. Check the feed motor and agitator motors are working correctly
2. Check the 12v Fan and air intake meshes are clean and free from any debris (see page 13)
3. Check feed hoses for any blockages and all hose clips are tight
3. Check the spreader plates are positioned correctly
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
WARNING
DO NOT JET WASH THIS MACHINE

10
10.1 Installation guide (Page 1 of 2)
The Turbo Jet can be used for a wide variety of seeding applications in conjunction with a wide variety of
parent implements.
It is not practical to supply tailored mounting brackets for every implement on the market, and so the final
attachment of the Turbo Jet to the implement is the responsibility of the supplying dealer or end user.
The positioning of the hopper, the spreader plate, the “C” section mounting rails will depend upon the type
and design of parent implement, here are a few basic pointers to ensure the Turbo Jet performs correctly.
Position the Turbo Jet high enough above the implement to facilitate routing of the flexible tubes to the
spreader plates, without severe bends or uphill runs. Try to route all tubes generally downhill. Do not block
the air intakes to the fans under the base plate
Ensure the hopper does not foul wing sections when folded, and the tubes are long enough to fold with the
implement, without a restriction when in work.
Ensure you can access the hopper to fill, and are able to remove the feed block assembly and position the
calibration tray underneath to calibrate or empty. Ensure there is room to undo the fan housing catches and
lift the housing to clean the fans. When filling, emptying or calibrating the Turbo Jet ensure you work safely.
If necessary fabricate and fit a work platform and steps, complete with handrails. The hopper may face
forwards or backwards – whichever offers the easiest mounting and best flexible tube run. Select a strong,
rigid position and use the heavy flat base plate provided to weld or bolt to your implement as per the below
example. If necessary fabricate and fit a work platform and steps, complete with handrails.
10.2 Base Plate
Part No. TJ422
Dimensions and fixing hole detail

11
11 Installation guide
(Page 2 of 2)
Spreader Plates
The machines have 8 or 10 outlet tubes, feed hoses can be split with the black “ Y” connectors provided, to
give 16 or 20 spreader plates. Depending on the implement width and if you require a broadcast or band
sown effect, use as many outlets as required, with or without the spreaders.
Plan the positioning of the pipes/spreader plates to be equal distant across the width of your implement. If
using the black plastic “Y” connectors ensure they are fitted above the spreader plate using as short a run of
flexible hose to the plates a possible, whilst still providing a smooth flow and of being equal length. It is
recommended that a straight 30cm section of pipe is utilised prior to the “Y” connector to ensure an even split
of product.
Flexible hose from these connectors then runs to the outlet pipes on the Turbo Jet. Aim to route all these
hoses smoothly and generally downhill from the hopper to the spreader plate, avoiding severe bends and
uphill runs.
C Section Rail
The spreader plates themselves are mounted to the “C” section rails, 4 x 2m lengths per machine are supplied.
These can be cut down to suit the implement width. The “C” section rails can be attached to the implement
using the supplied straight brackets, two per rail, which can be welded or bolted into position.
The spreader plates slide along the rails to give the planned spacing, and lock into position using the integral
bolts. It is generally better to position the spreader plates facing to the rear of the implement as this can
prevent wet mud or tilth being thrown up into the mouth of the spreader causing blockages, especially if
positioned close behind the tractor wheels, roller, or discs.
Feed Hose
A 30m coil of flexible feed hose is supplied with each Turbo Jet (with extra hose available if required)
This requires cutting into lengths according to the positioning of the hopper and spreader. Ensure all hose
runs are as short as possible whilst giving a smooth downhill route to the spreader plates. Avoid kinks, severe
bends or uphill runs. Plan and measure the individual tube runs before cutting, fit the hose clips to the Y
connector tails.

12
12 Machine Components
Feed Motor
The feed motor can be turned ON or OFF, either manually via the head unit, or automatically by fitting the
optional remote mounted spring type finger switch (Cost option please see page 18)
which can be fitted to the linkage or the implement. The feed motor must be switched ON via the head
unit for the spring finger switch to work automatically.
Hopper Agitator
The internal agitator is powered independently by a separate motor. Its purpose is to prevent seed
becoming compacted in the hopper and bridging (not flowing). It is recommend for all grass and grass
seed mixes, or other seed that may bridge in the hopper, but it is not required for free flowing seeds such
as OSR, clover, stubble turnips or similar, or granular products. The agitator ON OFF switch is mounted on
the side of the machine (see page 16)
NOTE If using the agitator in the field, also use it when calibrating.
12v Fan Unit
The double 12v fan unit is housed under the hinged meshed cover designed for easy access, and air is
drawn through the mesh intakes on the rear, front, and sides of the cover, and underside the mounting
base plate. This hinged cover can be lifted for cleaning purposes.
The Fan ON OFF switch is mounted on the side of the machine (see page 16)
NOTE turn on the fan OFF when calibrating, and ON once calibrated and ready for work.
Main Power Cable
The heavy duty power cable should connect directly to the vehicle battery posts to ensure adequate 12v
supply to the fans which is fitted with a 40 amp fuse to protect the control system.
This cable should reach to the back of the tractor in turn this is connected to the 5m heavy duty power
extension cable which then connects to the power input flylead on the machine.
Instrument Lead
The 6m instrument lead connects to the junction box of the Turbo Jet, and runs to the control panel in the
tractor cab.
NOTE Extension power and instrument cables available if required.
Please contact your local Stocks AG dealer for more information.

13
13.1 12v Fan inspection
WARNING Always isolate the power before inspecting
To inspect the fan unit undo the two over-centre catches and
hinge up the guard as shown below.
Use an air line and brush to clean the fan blades regularly to maintain performance and prevent eccentric
running. Always check the fan air intakes are clean and free from debris.
13.2 Feed block assembly inspection
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.
1. Empty the hopper completely, to prevent spillage release the two over-centre catches and drop the
hinged panel under the feed rolls and position the plastic collection tray directly underneath to catch any
remaining seed or product.
2. Undo and remove the 2 black plastic knobs holding the mechanism in place and slide out the feed block
assembly
Be aware that the feed block assembly may retain some seed product
3. Use an air line and brush to clean the feed block and internal components checking for any wear or
damage replacing any worn or damaged parts as necessary, when doing this wear appropriate PPE.
4. Before re-fitting the feed block ensure that the feed shaft can easily be turned by hand using the Black
PVC knob fitted to the end of the shaft. If difficult to turn remove the end cap at the opposite end of the
feed block assembly and remove all spacers and feed rollers by sliding each one off the shaft.
5. Check the drive shaft engages correctly when sliding the feed block back into the machine by slowly
rotating the central black plastic knob before re-fitting the outer black plastic retaining knobs.
Agitator shaft
Check the internal agitator shaft to ensure it
is clear of any debris and free to rotate.
0

14
14.1 Hopper emptying procedure
The hopper drain cap can be removed to help empty the hopper.
Any remaining product is best removed by using an industrial vacuum
before the feed block is removed from the machine.
Once the feed block has been removed from the machine dispose of any
remaining product held in the feed block.
Release the bottom calibration door and check the air chambers for any
sign of debris or build up of product and clear as necessary.
14.2 Clearing a feed hose
blockage
In the unlikely event of a blockage remove the hose and clear any obstruction and from within the hose or
manifold on the machine. Remove the feed block and check the air chamber below the feed block opening
and clear any debris. Re-position the feed hoses if this has been the cause of the problem (See page 12 for
advice on best hose positioning)
14.3 Checking the feed motor
WARNING This procedure must be carried out by a competent person who is aware of any
risks involved
Firstly empty the hopper then remove the feed block assembly as
described on page 13
Remove the motor guard by releasing the fixing screws
Check to see if the feed motor shaft rotates when pressing the
prime button.
If the shaft is not rotating this may indicate the motor is faulty or
has been damaged and needs to be replaced.
For any parts required or if no faults found and the alarm persists contact your local stocks dealer

15
15 Control system
overview
This VS-2 control system is designed to provide a simple method of metering product into the airflow of the
machine and provide basic system monitoring of functions in the way of audio and visual alarms
The machine can be operated without the optional GPS Speed Sensor Kit fitted but the machine will be set at a
fixed output and will NOT provide speed proportionate metering. Feed rate accuracy then being dependant
upon a fixed forward speed being maintained.
For speed proportionate metering of product for accuracy and economy the optional GPS Speed
Sensor kit must be fitted (see page 19)
This GPS receiver is simple to fit (magnetic attachment) and is not affected by the angle of fitting and requires
no in-field calibration. Once fitted and the application rate has been decided and calibrated, the VS-2 will
monitor the forward speed of the vehicle via the speed sensor and balance the speed of the feed motor to the
forward speed, ensuring that the metering is proportionate to any forward speed changes in the field.
A simple static “catch and weigh” calibration test is completed prior to any field work, to set the application
rate for the typical target field speed the machine will be working at once the appropriate feed rollers for the
seed or product being applied have been fitted (see pages 22-
24)
NOTE the system remembers the feed motor speed setting once calibrated.
Once this static catch and weigh test is done application rates can be manually nudged up or down on the go
using a combination or the 3 position feed motor switch and speed dial settings.
NOTE each of the 36 motor speed settings available change the motor speed by approximately 1.54 rpm and
so rates can be adjusted accordingly (see page 23)
If the feed motor speed setting is changed during operation an alarm will remind you that you are no longer
working at the calibrated setting until the original setting is resumed.
The control system will also alarm to remind you when the motor is switched off at headland, for example, the
feed motor speed cannot be maintained, the fans are not working, or the hopper contents are low when the
optional hopper level sensor has been fitted.
15.1 VS -2 Control cost options
1. Feed Cut Out Switch; this can be mounted in a suitable place on the implement or linkage of the
tractor, thus deflecting the spring, and automatically switching the feed motor off or on accordingly as
the circuit is made or broken.
(for more details see page 18)
2. GPS Speed Sensor Kit to avoid any over applying of product this offers speed proportionate metering
of product, maintaining the pre-set application rate in line with forward speed changes. If the system is
then not able to maintain the rate it will alarm and alert the operator.
(for more details see page 19)
3. Hopper Level Sensor alarms to warn the operator if the hopper contents are getting low
(for more details see page 18)
Please contact your local Stocks dealer for more details

16
16 Control system operation
Cab Control Panel
A Left Hand Toggle Switch
Feed Motor ON (“I”) Lower position, OFF (“O”) Middle position Calibration - forward speed (“C”) Upper
position)
B Middle Toggle Switch
Main Power ON (“I”) Lower position) OFF (“O”) Upper position.
Power remains connected (in standby mode with slow pulsed led) until the main power cables are
disconnected NOTE the forward speed calibration memory will be lost if this happens, and will have to
be reset. The system can be left connected for long periods with no significant current draw.
C Right Hand Toggle Switch
High, Medium, and Low speed ranges for the feed motor to determine the application range - determined
by the calibration later in this section.
D Feed Motor Speed Dial
Fine speed range adjustment dial (1-12)
Machine Junction Box
This box has 3 toggle switches are used to turn on and off the following motors;
AFeed motor
BFan motor
C Agitator motor
Use these switches when calibrating the machine to isolate the fan, and control the feed motor during the
catch and weigh test (see page 22)
NOTE select the agitator for use with grass seeds or other product that requires agitation.
The LED lights illuminate indicate when the switches are in the OFF position or there are any problems or
issues with the fan unit, feed motor or agitator motor and if a hopper contents have fallen below the hopper
level sensor (if fitted) .
B
A
D
C
A
B CA
B
C

17
17 Electrical components
3
1
4
5
1 Cab Control Panel
2 Junction box (machine mounted)
3 Control cable connection
4 GPS sensor connection - Optional (see page 19)
5 Cut Out Switch connection - Optional (see page 18)
6 Power cable connection
7 12v Fan connection
8 Hopper level sensor connection - Optional (see page 18)
9 Agitator motor connection
10 Feed motor connection
11 6m control extension cable (not shown)
12 5m fused power cable (not shown)
13 5m power cable extension (not shown)
2
3
5
4
6
7
8
9
10

18
18.1 Optional Cut Out Switch
Part No. TJ-004-C/OUT-KIT
This switch can be mounted in a suitable place on the implement or linkage of the tractor, thus deflecting the
spring, and automatically switching the feed motor off or on accordingly as the circuit is made or broken.
NOTE The feed motor must be switched ON at the control panel for the spring finger switch to work
automatically.
Position the finger switch so that the tip of the spring comes into contact with the moving part of the
implement or linkage when lifted out of work, and remains deflected until the implement is lowered back into
work. NOTE. Ensure that there is sufficient and positive deflection on the spring to prevent accidental
switching ON or OFF if the implement moves slightly up or down in work.
The standard wiring as supplied for this switch is when the spring is at rest, the feed motor will run normally.
If required, the switch can work in the opposite mode by changing the position of the 2 wires inside the switch
so that the switch is out of work when the sprung is at rest.
To change over remove the PVC cover plate held in position with the retaining screw to access the wiring
terminals. Remove the 2 wires from terminals 13 and 14 and re-connect to terminals 21 and 22 (nearest the
gland nut) then re-fit the PVC cover plate.
21
22
13
14
18.2 Optional Hopper Level Sensor
Part No. TJ-004-HLS-KIT
This optional hopper level sensor is available which is usually factory fitted but can be retro-fitted if required
The alarm will sound once the product in hopper drops below the level of the sensor
Recommended if the hopper is not in full view of the operator
NOTE This unit plugs into the machine junction box and fits into a pre-drilled position in the hopper.
For more information please contact your local Stocks dealer

19
19 Optional GPS Speed
Sensor Kit
For best results and to avoid over applying product we
recommend the machine is fitted with this optional GPS sensor
kit as this will give speed proportionate metering of product whilst
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. Part No. TJ-004-GPS-KIT
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 .
GPS Calibration Procedure
NOTE This calibration can only be done after the application rate has been set as described on pages 22-24
It will not work if it is done prior to calibrating the machine.
The speed calibration is done in the field at the same speed used in the application rate
calculation
1. Set the main power ON/OFF –
disc ON/OFF switch to the lower ON position
2. Set the feed motor switch 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 in line indicator box
NOTE 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 using the vehicle speedometer. This
must be the speed used during the catch and weigh test.
6. maintain this speed and press and hold upwards the spring loaded toggle switch on the left hand side of
the cab console 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 system registered the signal from the GPS speed sensor at this speed and now knows that it has to
balance 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 sensor running at this actual field speed and from now on
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 is changed whilst on the move by increasing or decreasing the motor speeds using the
appropriate switch and dial 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 motor ON (I) and OFF (O)as required using the left hand toggle switch using only the mid to
low position not using the spring loaded upper position (C)
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 disconnect the
main power cable to the Turbo Jet for at least 10 seconds which cancels the memory of previous
calibrations and re-sets the system to allow new settings to be used.
Installation Guidelines
The GPS is best mounted along the centre line of the parent vehicle with an unobstructed hemisphere view of
sky to ensure that GPS satellites are not masked by parts of the machine or parent vehicle. Mount as far away
from any equipment that may cause electromagnetic interference as possible securing the cable close to the
antenna using cable ties so that in the event of it being knocked from its mounting point it will be restrained
and minimise any potential damage

20
20 Feed block assembly guide
WARNING Moving parts of this machine are powerful and can cause injury. Be especially
careful whilst performing calibration tests.
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.
Feed roller configuration
When supplied from the factory unless
specified the machine will be fitted with
8 section feed rollers for grass seed,
grass mixes and some cover crops
applications. Normally one feed roller
per outlet required as fitted for grass
seed application and typically applied at
35kg/ha over a 6m working width.
For lower outputs requirements for
example when applying over a 3m working width or to apply some cover crops then the number of feed
rollers can be reduced - See page ….. “1/2 Rate Feed Roller” section showing how the feed rollers and
spacers need to be assembled.
In addition the machine is supplied with a second feed roller kit for lower rate applications such
as small seed and slug pellet applications as shown below
Yellow feed rollers are typically used for small seed application such as OSR with 1 feed roller fitted over
each outlet as shown below. If higher rates are required the White feed rollers can be used which apply
approx. 25% - 30% more capacity depending upon product. If you cannot achieve the required rate using
just a single yellow or white roll, then use multiple rolls together per outlet for example 2 or 3, you can also
mix the yellow and white provided each outlet has the same configuration of feed rolls. Other components
from this kit which include 16 white feed rollers and 3 black 5mm blanking spacers will be found in a bag
packed inside the hopper.
WARNING It is the responsibility of the operator to ensure the feed block assembly is suitable for
the product being applied. NOTE before applying very fine seeds or product please contact your
local dealer or Stocks direct to ensure the machine is suitable. Failure to do so could invalidate
your warranty.
The feed rollers are easily exchanged by removing the feed mechanism as follows:
1. Ensure the hopper is completely empty
2. Undo and remove the 2 black plastic knobs holding the mechanism in place and slide out the feed block
3.
Undo and remove the 4 socket head screws on the end of the housing and remove the end plate.
Slide the feed rollers and spacers off the shaft and replace with the alternative rollers required.
The black blanking spacers (3 supplied) are the same width as the small seed rolls and are used in
combination with the feed rolls to allow 1, 2 or 3 feed rolls per outlet to be used or to replace the feed rolls
and blank off an outlet completely. For example if reducing the number of outlets from 8 to 7, to correspond
with subsoiler legs or tines remove all the feed rollers from
that that outlet and replace with a 5mm blacking spacer.
Remember to blank off the relevant air pipes using the push in PVC plugs supplied.
NOTE one stainless disc needs to be fitted to each
side of the 5mm small seed rolls. They are used to
reduce the friction element between the small seed
rolls and the plastic spacers that are to each side of