Tunturi T10 User manual

SERVICE MANUAL
VERSION 1.00
- 1 -
T10 T20
T30 T40
1 FOREWORD
This Service Manual contains instructions and advice on service procedures for Tunturi treadmills T10,
T20 and T30 (applies also to the Tunturi T40 from 2006 onwards).
The primary intention of this Service Manual is to enhance the reader's knowle dge of the structures of
the T10 and T20 treadmills. Notice that in case of a fault or a malfunction, the component or unit of
components in question, and especially the electronic components, are not to be repaired, instead they
must be replaced with a ne w component.
The components of the product frame and their locations with the reference and spare part numbers can
best be found in the exploded parts diagrams. Replacing the components does not require special tools,
but assumes a certain level of techni cal competence and familiarity with basic hand tools.
NB! Always when servicing the treadmill be sure that the power has been switch off and the main cable
is plugged off the power board. Big capacitors on the control board might ret ain high voltage level even
for several hours after the unit has been plugged off from the power outlet.
VERSION HISTORY
Date Version Author Change description
2006 - 01 - 16 0.30 PVI
Electronics, error codes, appendices, TOC – first public version
available on the Extranet
2006 - 08 - 08 1.00 PVI
Updated product information + troubleshooting. Mechanical section
will not be needed.

SERVICE MANUAL
VERSION 1.00
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T10 T20
T30 T40
1 FOREWORD 1
VERSION HISTORY ........................................................................................................................................ 1
2 ELECTRONICS 3
2.1 SERVICE MENUS .................................................................................................................................... 3
2.1.1 E NGINEERING M ODE .......................................................................................................................... 3
2.1.2 T ESTING M ODE .................................................................................................................................. 4
2.1.3 LIFT MOTOR CALIBRATION ................................................................................................................. 4
3 ERROR TEXTS 7
E1 ....................................................................................................................................................................... 7
E6 ....................................................................................................................................................................... 7
E7 ....................................................................................................................................................................... 8
4 APPENDICES 9
1. LOWER BOARD AND CONNECTOR LOCATIONS ........................................................................ 9
2. TECHNICAL DATA ............................................................................................................................. 9
3. TROUBLESHOOTING .........................................................................................................................10
4.
SPARE PART DIAGRAMS ..................................................................................................................11

SERVICE MANUAL
VERSION 1.00
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T10 T20
T30 T40
2 ELECTRONICS
The main electrical components of th e Tunturi T10 and T20 are user interface (B02), power board (B44),
motor (B18), lift motor (B25) speed sensor (B23), and power cable (B29).
Figure 1 Tunturi T10 and T20 electrical components and their connections (numbe ring refers to spare part
diagram)
2.1 SERVICE MENUS
2.1.1 Engineering Mode
1. Enter the engineering mode after switching the treadmill POWER ON by pushing first ‘SELECT’ and
then ‘ENTER’ and hold buttons pressed simultaneously
2. The SPEED window shows the treadmill sof tware version number , TIME window shows the software
design year and DISTANCE window shows the design date in “MM.DD” format
3. Press ‘ ENTER ’ to show LDU version number ( Display control software )
4. Press ‘ ENTER ’ to show ISP version number
FERRITE RING
B02
B44
B18
B25
B23
B29
B15 (included in B09)

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T10 T20
T30 T40
POTENTIOMETER VALUE
SPEED VALUE
HR VALUE
5. Press ‘ ENTER ’ to enter KM/MILE switch mode , 1 for KM, 0 for MILE
Switch between the KM or MILE setting by pressing SPEED + /- or ELEVATION +/ -
6. Press ‘ ENTER ’ to show total distance
7. Press ‘ ENTER ’ to show total usage hours
8. Press ‘ ENTER ’ to return to the normal mode
2.1.2 Testing Mode
1. En ter the testing mode after switching the treadmill POWER ON by pushing first ‘SELECT’ and then
‘SPEED DOWN’ and hold buttons pressed simultaneously
2. LED scanning mode for verifying display functionality
3. Press ‘ ENTER ’ to scan DATA LINE S to verify display fu nctionality
4. Press ‘ ENTER ’ to scan SACN LINE S to verify display functionality
5. Press ‘ ENTER ’ to scan LED’s to verify display functionality
6. After press ing ‘ ENTER ’ the TIME window shows “ test ” and the
keypad functionality can be tested (the value displayed
ch anges when a button is being pressed)
7. Press ‘ ENTER ’ to enter IO mode (TIME display shows lift
motor potentiometer value, SPEED reads speed from speed
sensor and DISTANCE shows heart rate pulse)
Press ‘ START ’ to test lower board relay (a “click” sound)
and then press ‘ ELEVATION UP ’ for 2 seconds to increase
the elevation to 8 %. P ress ‘ ELEVATION DOWN ’ to decrease the elevation to minimum
percentage 0%
P ress ‘ SPEED UP ’ to increase speed value and ‘ SPEED DOWN ’ to decrease speed value.
Press ‘ ENTER ’ to repeat above test or ‘SELECT’ and ‘ SPEED DOWN’ buttons simultaneously to return
to the normal mode
2.1.3 Lift motor calibration
The lift motor calibration is done manually by following the following steps:
1. Drive the lift motor to 0% from user interface (inclination display must be 0%)
2. Switch off the treadmill and unplug the power cable
3. Remove motor cover
4. Fold up the running deck
5. Loosen two screws (A) attaching the lift motor nut (B) to the incline frame ( Figure 2)
6. Adjust the lift motor nut (B) so that there is 9 mm gap between the upper end of the nut and the
lift motor frame ( Figure 2)

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T10 T20
T30 T40
7. Tighten the screws (A) and verify correct elevation by measuring ( Figure 3)
Figure 2 Adjusting lift motor to 0% position
Figure 3 Measuring correct lift motor positions
Lift motor calibration is needed if any of the following has taken place:
The lift motor has been removed from the frame
The actu al and the displayed elevation angle doesn't match
B
A

SERVICE MANUAL
VERSION 1.00
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T10 T20
T30 T40
Table 1 Lift motor potentiometer value table for the Tunturi T10, T20, T30 & T40
Elevation Lift motor I/O
0 %
90 ± 30 (1,1 ± 0,1 k )
1 % 170 ± 30
2 % 240 ± 30
3 % 320 ± 30
4 % 400 ± 30
5 % 490 ± 30
6 % 590 ± 30
7 % 700 ± 30
8 % 810 ± 30
9 % 940 ± 30
10 % 1090 ± 30
11 % 1240 ± 30
12 %
1420 ± 30 (8,54 ± 0,1 k )
The values in the Table 1 are reference information for troubleshoot ing only. Resistance is measured
from black and white wires (see picture below)
Figure 4 The lift motor potentiometer resistance at 0% inclination (measurement between black and white wire)

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VERSION 1.00
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T10 T20
T30 T40
3 ERROR TEXTS
To facilitate the mainten ance, error codes on display refer to internally found malfunctions; error codes
as such aren't malfunctions, they merely point to observed problem. As a general rule, when a source of
malfunction is located, it should not be repaired, but instead replaced with a new component. Error texts
can be removed from the display by disconnecting the treadmill power cable for about 10 seconds.
When an error text occurs, the first thing to do, if not any obvious visible reasons found, is to try to repeat
it after be ing switched off and on again.
E1
Instruction in the owner's manual:
"Speed sensor error. Unplug the electrical cord from the wall outlet and from the treadmill,
wait 1 minute and turn the power switch on again. If treadmill recovers to normal
operation, you may continue to use the treadmill. Otherwise, call the dealer for service."
The error will appear if the upper board can not receive pulses from the speed sensor for 10 seconds.
Possible reasons:
Speed sensor not properly assembled, the distance between the magnet and the speed sensor
should be less than 3mm.
Speed sensor cable disconnected
Meter cable has a poor connection at some point
Magnet missing from the front roller pulley
Front roller not rotating at all due to loose drive belt
Check the distance between the speed sensor and the flywheel and ensure that the speed sensor is
properly attached to the motor frame. Check also speed sensor connections.
Error can be reset also by re - inserting the safety key.
E6
Instruction in the owner's manual :
"Lift motor error. Unplug the electrical cord from the wall outlet and from the treadmill,
wait 1 minute and turn the power switch on again. If treadmill recovers to normal
operation, you may continue to use the treadmill. Otherwise, call the dealer for service."
The error message appears when voltage is being supplied to the lift motor but it doesn’t move.
Possible reasons:
Lift motor power cable disconnected
Lift motor electronically damaged preventing the movement
Error can be reset only by disconnecting the power cable.

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VERSION 1.00
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T10 T20
T30 T40
E7
Instruction in the owner's manual:
"Lift motor error. Unplug the electrical cord from the wall outlet and from the treadmill,
wait 1 minute and turn the power switch on again. If treadmill recovers to normal
operation, you may continue to use the treadmill. Otherwise, call the dealer for service."
The values the lift motor potentiometer is sending are not within the preset limits. Check the
potentiometer I/O value from the service menu (Chapter 2.1.2 ) and compare it to minimum and
maximum reference values in chapter 2.1.3 . The potentiometer value is also displayed on the user
interface when “error 7” appears.
If the readout from the potentiometer is 1 the software is no t picking any signal from the potentiometer
Possible reasons:
Lift motor rotation sensor (potentiometer) cable disconnected
Lift motor rotation sensor has poor internal contact thus providing incorrect values
The second connection cable between user interf ace and lower board disconnected
The potentiometer has lost its calibration and rotated to minimum
If the readout from the potentiometer has lost its calibration setting and it differs from reference values
adjust potentiometer ( Figure 5 ) to obtain correct value.
Figure 5 Lift motor potentiometer adjustment and how it affects on readout value
If the potentiometer has lost its position it can be lifted up after removing two attachment screws. Turn
the p otentiometer shaft to obtain correct setting and place the potentiometer back to the lift motor. To
ensure that potentiometer maintains correct calibration setting a small amount of glue should be added
to shaft before inserting it back to its counterpart.
Error can be reset also by re - inserting the safety key.

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VERSION 1.00
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T10 T20
T30 T40
4 APPENDICES
1. LOWER BOARD AND CONN ECTOR LOCATIONS
Figure 6 Lower board connectors and components
2. TECHNICAL DATA
T10 (and T20 autumn 2006 onwards)
Length (storage position) ............... 185 cm (83 cm)
Height (storage position) ................ 133 cm (175 cm)
Width ............................................. 88 cm
Weight ........................................... 94 kg
Running surface ............................ 47 x 1 33 cm
Speed ............................................. 0.8 - 16.0 km/h
Elevation range ............................. 0- 12 %
Motor.............................................. 2.0 HP
T20 (before autumn 2006), T30 & T40
Length (storage position) ......... ...... 190 cm (82 cm)
Height (storage position) ................ 144 cm (186 cm)
Width ............................................. 86 cm
Weight ........................................... 99 kg
Running surface ............................ 51 x 141 cm
Spe ed ............................................. 0.8 - 20.0 km/h
Elevation range ............................. 0- 12 %