Standen T2 Service manual

T2 / T3
Potato Harvester
Control System
(machines from 2012)
Standen Engineering Limited.
Hereward Works,
Station Road, Ely,
Cambridgeshire.
CB7 4BP
England.
Tel: [phone] www.standen.co.uk Fax: [phone]

The contents of this handbook, although correct at the time of publication, may be
subject to alteration by the manufacturers without prior notice.
Standen Engineering Limited operate a policy of continual product development.
Therefore, some illustrations and/or text within this publication may differ from your
machine.
The copyright of this handbook is the property of Standen Engineering Limited,
Hereward Works, Station Road, Ely, Cambridgeshire CB7 4BP England. This handbook
is issued on the condition that it must not be used, copied or exhibited without their
written permission.
IMPORTANT
This operator’s handbook should be regarded as part of the machine. Suppliers of both
new and second-hand machines are advised to retain documentary evidence that this
handbook was supplied along with the machine.

INTRODUCTION
Introduction to the handbook 1.1
INSTALLATION
CAN-Bus control system installation 1.2
OPERATION
Starting the control system 1.5
Stopping the control system 1.4
Emergency stop buttons 1.5
Configuring the control system to your machine 1.6
Screen select buttons 1.7
SCREEN 8 (Main screen) 1.8
SCREEN 1 (Chassis and axle screen) 1.10
SCREEN 2 (Digger depth control screen) 1.13
SCREEN 3 (Webs screen) 1.15
SCREEN 4 (Omega 1
st
separator screen) 1.17
SCREEN 4 (Starflow 1
st
separator screen) 1.18
SCREEN 4 (Roller table 1
st
separator screen) 1.19
SCREEN 5 (Omega 2
nd
separator screen) 1.21
SCREEN 5 (Galaxy 2
nd
separator screen) 1.22
SCREEN 6 (Spreader/table and elevator screen) 1.23
SCREEN 7 (Programming screen) 1.24
ESC (x1) (Machine configuration screen) 1.26
ESC (x2) (Program information screen) 1.28
Slave box functions 1.29
LH joystick functions 1.30
RH joystick functions 1.30
MAINTENANCE
SCREEN 1 Diagnostics (Chassis and axle) 1.31
SCREEN 2 Diagnostics (Digger depth control) 1.32
SCREEN 3 Diagnostics (Webs) 1.33
SCREEN 4 Diagnostics (Omega 1
st
separator) 1.34
SCREEN 4 Diagnostics (Starflow 1
st
separator) 1.35
SCREEN 4 Diagnostics (Roller table 1
st
separator) 1.36
SCREEN 5 Diagnostics (Omega 2
nd
separator) 1.37
SCREEN 5 Diagnostics (Galaxy 2
nd
separator) 1.38
SCREEN 6 Diagnostics (Spreader/table and elevator) 1.39
ESC (x1) Diagnostics (System voltage and current) 1.40
If the system fails to run 1.41
Removing/fitting control module KS1 & KS2 plugs 1.41
System fuses 1.42
Valve connections 1.42
CONTENTS

Introduction to the Handbook
This handbook provides the information for the operation, adjustment and maintenance
of your Standen T2 / T3 CAN-Bus electrical control system. To enable you to achieve
the best results from the machine, the manufacturer recommends that you read the
handbook thoroughly prior to using the machine for the first time.
Throughout this handbook the terms 'front', 'rear', 'left-hand' (LH) and 'right-hand' (RH)
are derived from the tractor driver’s position facing forward in the normal direction of
travel.
Adjustments to the machine may have to be made singly or in combination according
soil conditions. Always allow the machine to settle to a new setting before making
further adjustments.
TRANSPORT WARNING:
WELDING WARNING:
1.1
INTRODUCTION
This symbol indicates important safety messages within this handbook.
When you see this symbol, be alert to the possibility of injury to yourself or
others and/or damage to the machine and carefully read the message that
follows.
Before carrying out any welding on the harvester always disconnect
the KS1 & KS2 plugs from the bottom of the harvester control module
and completely disconnect the harvester from the tractor. Failure to
observe the above precautions may cause severe damage to the
harvester and tractor electrical systems. For plug removal procedure
see the maintenance section of this handbook.
Always switch off
the control system before transporting the
harvester on the road.

CAN-Bus Control System Installation
The harvester CAN-Bus control system requires a 12 Volt negative earth power supply
fed directly from the tractor battery using the 50Amp power lead supplied. Red cable to
positive (+) and black cable to negative (-).
Ensure the polarity of the battery connections are made correctly to prevent
damage to the system components.
The touch-screen terminal (fig 1) and the slave box (fig 2) should be mounted inside the
tractor cab so that controls can be comfortably reached from the drivers seat.
Care should be taken to ensure the units do not obstruct the driver’s visibility
and access to the tractor controls. Always use existing mounting holes within
the cab, as drilling additional holes may reduce the cab’s integrity and is
illegal.
The cab loom (fig 3) should be routed into the cab through existing apertures to allow
the 12 pin plug to couple into the front of the slave box. Mount the loom plug housing to
the rear of the tractor cab so that it can be reached from the ground and through the
opened rear window. Connect the display loom (fig 4) into the plug on the rear of the
touch-screen terminal, and route it safely to plug into the 4 pin plug on the front of the
slave box. Connect the power lead (fig 5) to the cab loom plug.
The tractor loom plug housing is used as the main power lead junction and the power
pins are permanently live when connected to the battery. When all mechanical and
hydraulic connections have been made to the tractor, the harvester loom can be
plugged into the cab loom completing the electrical circuit. Ensure the plug is clean and
dry and has not been dropped on the ground. The plug latch must be fully closed to
ensure correct connection. When not in use, the harvester plug should be latched into
the blank cover on the support stem. The circuit is completed by the manual emergency
stop switch(es) at the rear of the harvester which allow the main power relays to latch
on.
INSTALLATION
1.2
Fig 1 Fig 2

Fig 3 Fig 4
Fig 5
1.3
INSTALLATION

Starting the Control System
1. Set the rocker switch (item 1, fig 6) to the ON position.
2. The START screen (see fig 7) will display after approximately 45 seconds.
3. Press and hold the green start button (item 2, fig 6) for 3 seconds.
4. The MAIN screen will display (see fig 8).
Stopping the Control System
1. Press the stop button on any screen.
2. Wait for the START screen to display (see fig 7).
Note: The control system is now in stand-by mode and can be restarted again by
pressing and holding the start button (item 2, fig 6) for 3 seconds.
3. For full shut-down, set the rocker switch (item 1, fig 6) to the OFF position.
4. The screen will go blank.
Fig 6
Fig 7
OPERATION
1.4
Fig 8

Emergency Stop Buttons
An emergency stop button is present on all screens and mechanical
stop buttons (item 1, fig 9) are mounted at the rear of the harvester. When
any of the buttons are activated, all harvester functions are stopped.
Screen STOP buttons
When a screen stop button is pressed, all harvester functions stop and the
terminal reverts to the ‘START’ screen. Restart by pressing and holding
the start button (item 2, fig 6) for 3 seconds.
Harvester STOP buttons
When a harvester stop button (item 1, fig 9) is pressed, all harvester
functions stop and the terminal screen ‘freezes’. To restart, reset the
emergency stop button and then press and hold the start button (item 2, fig
6) for 3 seconds.
Fig 9
1.5
OPERATION

Configuring the Control System to Your Machine
At the MAIN screen:
1. Press the (ESC) button once (item 1, fig 10).
2. The MACHINE CONFIGURATION screen will display (see fig 11).
3. Press the button to select your machine type (T2 or T3).
4. Select the 1
st
separator unit fitted to your machine.
Omega scrolls or starflow or roller table .
The button turns green when selected.
5. Select the 2
nd
separator unit fitted to your machine.
Omega scrolls or galaxy .
The button turns green when selected.
6. Select the icons for optional equipment fitted to your machine. When selected
these will display on the main screen.
Powered diabolo , clod fingers , elevator auto-height ,
axle level , windrow .
7. The control system is now configured to your machine.
8. Press (<<
8
) to return to the main screen.
Fig 10 Fig 11
OPERATION
1.6

Screen Select Buttons
On the RH side of the terminal screen is a row of buttons which link to individual screens
containing the full range of functions available complete with parameter and diagnostic
information.
SCREEN 1 (Chassis and Axle Screen)
This screen covers drawbar, axle side shift, axle steering and machine
levelling.
SCREEN 2 (Digger Depth Screen)
This screen covers automatic depth control, manual depth control and
single side lifting.
SCREEN 3 (Webs Screen)
This screen covers web functions, agitation, VariSep height, haulm roller
speed and rotation.
SCREEN 4 (1
st
Separator Screen)
Depending on separator configuration, the 1
st
separator speeds and heights
are covered from this screen.
SCREEN 5 (2
nd
Separator Screen)
Depending on the separator configuration, the 2
nd
separator speeds and
heights are covered from this screen.
SCREEN 6 (Spreader / Table and Elevator Screen)
This screen covers the spreader / picking table and discharge elevator
speeds, height, and auto-height functions.
SCREEN 7 (Programming Screen)
This screen covers save/load speed program, start/stop sequence
programming, restore default settings.
SCREEN 8 (Main screen)
This screen covers the commonly used functions and speed adjustments.
ESC (x1) (Machine Configuration screen)
This screen covers machine type (T2 or T3), 1
st
& 2
nd
separator type, joystick
configuration, additional main page icons, simultaneous start elements, back box
ON/OFF, system voltage & current, oil temperature etc..
ESC (x2) (Program information screen)
Program version and date.
1.7
OPERATION

SCREEN 8
Main Screen
Screen 8 allows the operator direct access to the most commonly used harvester
functions. When selected the function button changes to green.
Axle drive boost
Sets the powered axle drive assistance to maximum system pressure for bad
conditions.
Auxiliary ON/OFF
Turns on the auxiliary relay on the distribution board to power optional equipment such
as a water misting kit etc.
Working lights
Turns on the relay in the lighting distribution box to power optional working lights.
Load speed program
Enables operator to quickly reload different speed set-ups saved during work.
Emergency
stop
Axle drive boost Auxiliary ON/OFF Working lights
Digger web
ON/OFF
Sieving web
ON/OFF
Load speed
program
Fine tune
digging
depth
Main
elements
ON
Individual
agitator shaft
ON/OFF
Agitator main
ON/OFF
1
s
t
separator
ON/OFF
2
nd
separator
ON/OFF
Spreader/table
ON/OFF
Elevator
ON/OFF
Haulm roller
forward/reverse
1
st
separator
clod roller
forward/reverse
2
nd
separator
clod roller
forward/reverse
Screen
select
buttons
Digger
lower
Fig 12
Digging
depth
(mm)
OPERATION
1.8

Main elements ON
Simultaneously starts chosen harvester elements (see machine configuration screen).
Motor speed adjustment
Speed adjustment is available on all motor functions. With the machine running, the blue
box adjacent to the button displays speed information received from the harvester
sensor. The white box allows the operator to change this setting. To change the speed,
select the white box (border will highlight red) and rotate the encoder dial (item 2, fig
10). Press the dial to save the setting (border will highlight black). The revised speed is
now operational and will remain as the parameter setting until any further change is
made.
Note: On motor functions the number in the white box represents an incremental value
on the dial (0-255). The actual output (rpm) is displayed in the blue box.
Axle drive speed
Sets the wheel speed to match the forward operating speed of the machine.
Axle drive assist pressure
Sets the pressure to maintain the drive assistance required for normal harvesting.
Pressure should be set as low as possible to minimise the power used.
Axle drive
speed
Powered axle
circuit pressure
(bar)
Axle drive
assist
pressure
Digger
web speed
Sieving
web speed
1
st
separator
speed
2
nd
separator
speed
Spreader/table
speed
Elevator
speed
RH depth
display
LH depth
display
RH wheel
position
display
Agitator
speed
Haulm roller
speed
1
st
separator
clod roller
speed
2
nd
separator
clod roller
speed Fig 13
1
st
separator
angle display
2
nd
separator
angle display
2
nd
separator
clod roller
height display
1
st
separator
clod roller
height display
1.9
OPERATION

SCREEN 1
Chassis and Axle Screen
Screen 1 covers drawbar steering, axle side shift, axle steering, machine levelling and
powered axle.
Drawbar steer, axle steer and axle auto-centre
During work, drawbar steer left/right, axle steer left/right and axle auto-centre can also
be controlled using the LH joystick.
Axle drive forward/reverse and axle drive boost
During work, powered axle drive forward/off/reverse can also be controlled from the
yellow rocker switch on the slave box. Axle drive boost sets the system to maximum
pressure for bad conditions.
Manual machine level
During work, machine level raise/lower can also be controlled from the black rocker
switch on the slave box.
Note: On T3 a shut-off valve is fitted above the ram which must be closed during
transport.
Auto-machine level
The optional auto-machine level function automatically maintains the side to side level of
the chassis. If a manual level button is pressed the auto-machine level function is
switched off. Set the machine level tolerance box to 1 (sets maximum tolerance to ±1).
Drawbar
steer
left/right
RH wheel
track in/out
Axle steer
right
Axle steer
left
Axle auto
centre
Auto-machine
level
ON/OFF
Machine
level
raise/lower
Axle drive
forward/reverse
Axle drive
boost
Fig 14
OPERATION
1.10
Auto-machine
level display
Powered axle
circuit pressure

Ram speed adjustment
Speed adjustment is available on all ram functions. To change the ram speed, select the
white box (border will highlight red) and rotate the encoder dial (item 2, fig 10) between
0-100. Press the dial to save the setting (border will highlight black). The revised speed
is now operational and will remain as the parameter setting until any further change is
made.
Axle drive speed
Sets the wheel speed to match the forward operating speed of the machine.
Axle drive assist pressure
Sets the pressure to maintain the drive assistance required for normal harvesting.
Pressure should be set as low as possible to minimise the power used.
Drawbar
ram speed
RH wheel track
ram speed
RH steer
ram speed
LH steer ram
speed
Levelling
ram speed
RH wheel
offset
LH wheel
offset
(T2 only)
Axle drive
speed
Axle auto
centre
tolerance
(set to 1)
Machine
levelling
tolerance
(set to 1)
Axle drive
assist pressure Fig 15
1.11
OPERATION

Wheel Centring Parameters
To set the wheel centre position:
1. Set the axle auto-centre tolerance box to 1 (sets maximum tolerance to ±1).
2. Using the axle steer right/left buttons, set the RH wheel to the straight-ahead
position.
3. Select the RH WHEEL OFFSET box. The border will highlight in red.
4. Rotate the encoder dial (item 2, fig 10) until the blue box reads + 0. This sets the
centre position on the RH steering sensor.
5. Press the encoder dial to save the revised figure. The border will change to black.
The RH wheel centre position is now set.
6. (T3) If necessary, set the LH wheel to match the RH wheel as per the instructions
in the operator’s handbook (see steering ram link circuit).
(T2) Using the axle steer right/left buttons, set the LH wheel to the straight-ahead
position.
7. Select the LH WHEEL OFFSET box.
8. Rotate the encoder dial (item 2, fig 10) until the blue box reads + 0. This sets the
centre position on the LH steering sensor.
9. Press the encoder dial to save the revised figure. The LH wheel centre position is
now set.
10. Check both wheels centre correctly.
If necessary, reset the steering ram speed parameters to ensure the wheels arrive at the
centre position at the same time.
OPERATION
1.12

SCREEN 2
Digger Depth Control Screen
Screen 2 covers automatic depth control, manual depth control and single side lifting.
Digger auto-lower/off/manual raise
During work, the digger auto-lower/off/manual raise functions can also be controlled
from the green rocker switch on the slave box.
Fine tune digging depth
Initial digging depth is manually set as described in the ‘automatic depth control’ section
of the operator’s handbook. Fine adjustment can be made using the digging depth + and
– buttons on the touch-screen.
LH/RH depth sensing
A depth sensor fitted to each depth wheel (outside wheels only on T3) controls the
digger lift ram on that side of the machine. The sensors maintain the correct digging
depth across the width of the machine. The working position of the sensors is shown in
the RH and LH depth display boxes. If the depth needs to be locked on one side (e.g.
because of a bad sprayer wheeling), the LH or RH depth sensing button can be
switched off, locking the depth at that position.
LH depth
sensing ON/OFF
Fine tune
digging depth
Manual digger
raise/lower
Auto-depth
control
ON/OFF
Digging
depth
(mm)
Fig 16
RH depth sensing
ON/OFF
LH depth
display
RH depth
display
1.13
OPERATION

Auto-depth raise and lower delay
Sets the digger raise and lower time delays in milliseconds (1000 milliseconds = 1
second). Initially, both sides should be set to the same setting and then adjusted as
required.
Auto-depth raise and lower speeds
Sets the raise and lower speeds of the LH and RH digger rams in automatic depth
mode.
Auto-depth dead-band
Sets the tolerance in millimetres at which the depth sensors will ‘switch’. Initially, set the
maximum and minimum figure to 3 on both sides and then adjust as necessary during
work. The maximum and minimum figures added together create the total dead-band
e.g. 3mm up + 3mm down = 6mm dead-band.
Digger manual raise and lower speed
The raise and lower speed settings apply to both digger rams when operated manually.
RH auto-
depth
dead-band
(mm)
LH auto-
depth
dead-band
(mm)
Auto-depth
raise delay
LH/RH
(ms)
Auto-depth
lower delay
LH/RH
(ms)
RH auto-depth
raise/lower
speeds
LH auto-depth
raise/lower
speeds
Digger ram manual
raise/lower speed
Fig 17
OPERATION
1.14

SCREEN 3
Webs Screen
Screen 3 covers web functions, optional powered diablo, agitation, web split, haulm
roller speed and rotation.
Agitation
During work, main agitator on/off can also be controlled using the orange rocker switch
on the slave box.
Web split
During work, web split raise/lower can also be controlled using the grey rocker switch on
the slave box.
Digger
web
ON/OFF
Sieving web
ON/OFF
Web split
raise
Web split
lower
Main agitator
ON/OFF
Individual
agitator shaft
ON/OFF
Haulm roller
forward/reverse
Fig 18
1.15
OPERATION
Web circuit
pressure
Optional powered
diablo ON/OFF