WORKSHOP MANUAL

TIMBERJACK TMCZ
CONTROL SYSTEM

F058238

Timberjack
ENG
WORKSHOP MANUAL

MAINTENANCE
1

Timberjack
TMC
SETTINGS IN MAINTENANCE MODE
2

rev 071100 FUNCTIONAL

REQUIREMENTS FOR INPUTS 3
From version 2.00 (Forwarders)

From version 14.14 (870B / 1270B)

From version 14.56 (770 / 1070)
From version 20.01 (1270C)
From version 25.11 (1470)
The information contained in this manual is comprised
of instructions which will assist the operator to operate
the machine in a safe and efficient manner. Make sure
this manual is always close at hand and available to all
who work on the machine. Should this manual be lost
or should it deteriorate to an unintelligible state, con-
tact Timberjack or your nearest Timberjack dealer for
a replacement manual.
If you sell the machine, be sure to give this manual to
the new owners.
Continuing product improvement made by Timber-
jack may result in changes to the machine which are
not covered in this manual. Should you need up-to-
date information about your machine or should you
have questions in regards to this manual, please con-
tact Timberjack or your Timberjack dealer.

WARNING
Only persons whose training has been
approved by Timberjack are permitted to
operate Timberjack machinery.

Improper operation and maintenance of

this machine can be hazardous and could
result in serious injury or death.

Therefore, it is of paramount importance

that all the instructions given in this
manual and during training be followed
when the machine is operated or serviced.
 Issue Page

07/99-02 0-1

1. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

2. Settings in Maintenance Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1 Operator Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.1 Alarm Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.2 Machine Running Hours . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.1.3 Alarm Limits And Stoppage of Alarms . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.1.4 Basic Settings for Forwarder Alarms . . . . . . . . . . . . . . . . . . . . . . . . 2-14
2.1.5 Basic Settings for Harvester Alarms . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
2.1.6 List of Alterations to Basic Values . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
2.2 Crane Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2.3 Settings of Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
2.4 Base Machine Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
2.4.1 Gear Ratio, Engine Speed And Driving Speed . . . . . . . . . . . . . . . . 2-26
2.4.2 Minimum And Maximum Current Settings for Drive Hydraulic
Motor And Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
2.4.3 Maximum Speed Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
2.4.4 Calibration of Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
2.4.5 Adjustment of Engine Idling Speed And Maximum Speed . . . . . . 2-27
2.4.6 Adjustment of Electrical Throttle Control
(810B, 1110, 1210B, 1410, 770, 870B, 1070) . . . . . . . . . . . . . . . 2-28
2.4.7 Adjustment of Electrical Throttle Control
(1710, 1270B, 1270C, 1470) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
2.4.8 Automatic Adjustment of Currents During Driving . . . . . . . . . . . . 2-32
2.5 Setting of Basic Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34

3. Functional Requirements for Inputs . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 Function of Driving Power Transmission . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2.1 Displacements And Control Currents of Drive Pump And
Motor Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2.2 Engine Speed Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.2.3 High/Low Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.2.4 Service Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.5 Release of Rear-Wheel Drive (Forwarders) Or Front-Wheel Drive
(Harvesters) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.6 Differential Lock; Front-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3.2.7 Differential Lock; Rear-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . 3-5

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3.2.8 Release of Frame Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

3.2.9 Excitation Valve of Working Pump . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.2.10 Unloading of Working Pump (810B, 1110, 1410, 1710) . . . . . . . 3-7
3.3 Crane Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3.3.1 Control of Crane Valves And Articulated Frame Steering Valves . 3-8
3.3.2 Crane slew float mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3.4 Chair Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.4.1 Audible alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.4.2 Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.4.3 Switch Leds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

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07/99-02 1-1

1. Maintenance
The maintenance functions and the maintenance
displays of the control panel should only be used
by trained and skilled service personnel. The
operator is not supposed to deal with these set-
tings. The interrelationship of the displays be-
tween each other in the maintenance mode and
the relationship to the TMC system as a whole
is illustrated by the diagram. See next pages.

NOTE! Values showed in display pictures are not

real in all events.

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DIAGRAM OF TMC DISPLAYS (FORWARDER)

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07/99-02 1-3

DIAGRAM OF TMC DISPLAYS (HARVESTER)

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BASIC MENU OF MAINTENANCE MODE:

The maintenance mode can be entered from the

basic menu by pressing on the center of the right-
hand-side zero of the engine speed display. Af-
ter that, the following text will be displayed:

- At the bottom of this display there are three

boxes for a passcode. The characters of the
passcode must be keyed in one at a time, after
which you have to press ’OK’. If the pass-
code is correct the system will enter the main-
tenance mode and the basic menu of the
maintenance mode will be displayed.

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- If you are going to work on basic settings (re-

sets), first key in the passcode that stands for
the basic settings and then move on to item
’RESETS’ in this set of instructions. An in-
correct passcode will block the display and
the power will have to be turned off before
you can go on.
- The maximum value of the working rpm can
be set 1800 rpm or 2000 rpm in harvesters.
There is a separate passcode for this. The
passcode is typed into the passcode window.
Before this is done the maintenance mode
must be on.
- The maintenance mode is closed by pressing
the following keys:
RETURN =

MAINTENANCE =

1. Press the ’RETURN’ key quickly (within

0,5 seconds) twice.
2. Next, the basic menu will be displayed,
showing the ’MAINTENANCE’ key.
3. Press the ’MAINTENANCE’ key. This
will close the maintenance mode and re-
move the symbol from the display.
- The maintenance mode will also be closed
when the power is switched off.

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2. Settings in Maintenance Mode

The setting mode can be entered from the basic

menu of the maintenance mode by pressing the
key. The following image will be dis-
played (forwarer):

Operator Settings Crane Settings

Base Machine
Settings of Controls Settings

Return to Previous
Level

Here is what will be displayed for harvester:

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2.1 Operator Settings

The operator settings are entered by pressing the
operator symbol. The display will look like the
following:

Alarm Log
Adjustments
of Alarms
Machine Running
Hours

- The functions differ very little from those

shown in the corresponding display in the op-
erating mode. What is given in the above il-
lustration is those functions that are different
from the functions in the operating mode.

2.1.1 Alarm Log

The alarm log can be entered by pressing the
key. After that, the display will look like
the following:

Reseting of
Alarm Log

- The alarm log can be emptied by pressing the

’RESET LOG’ key for three seconds.

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2.1.2 Machine Running Hours

The running hours of the machine can be viewed

by pressing the key. The following text
will be displayed:

Keys for Setting

Operating Hours

- What is displayed in this mode is the numbers

of running hours accumulated for the ma-
chine. The hour numbers can be modified
through the setting keys. The following ex-
plains what the hour numbers stand for (the
prerequisite for counting is given in paren-
theses):
Power On - The total number of running hours
of the machine (engine oil pressure).
Drive - The driving hours of the machine (park-
ing brake and service brake released).
Crane - The running hours of the crane (crane
in operation).
High RPM - The machine running hours with a
high engine speed (1500 rpm or more).
High Pwr - Running hours with a high output.
TMC - The total number of running hours of the
machine with power on (h). The kilometers driv-
en on road with the high gear engaged (km).
(Converting number of hours on TMC, see sec-
tion 2.5)

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2.1.3 Alarm Limits And Stoppage of

Alarms
The alarm limits and the stoppage of alarms are
set by pressing the key.

- Each page displayed provides the data that is

related to one alarm.
The alarm number is given on the lower right-
hand corner of the display. The next alarm or
previous alarm can be selected by pressing the
alarm number box upward or downward.
Next to the symbol (engine, for example) depict-
ing the object of the alarm there is the current
alarm limit which can be increased or decreased
by pressing up or down the box concerned.
For each individual alarm, the alarm function
can be stopped or activated by pressing the box
underneath the symbol. This will change the
mode.
0 = Alarm off.
1 = Alarm on.
- For alarms 20 ... 22, each output can be acti-
vated or deactivated.
- What is listed below is each alarm setting
window equipped with the basic settings:
1. The display module cannot establish con-
tact with other modules.

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2. The alarm limit of the engine coolant tem-

perature. The setting range is 100 ... 125
degrees centigrade. The basic setting is
103EC.

3. The display module cannot establish con-

tact with the transmission module.

4. The display module cannot make contact

with the crane module.

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5. The display module cannot make contact

with the chair module.

6. The alarm limit for the hydraulic oil tem-

perature. For the forwarder, the setting
range is 80 ... 110 degrees centigrade. The
basic setting is 85EC.

7. The stopping limit for the engine oil pres-

sure. For the forwarder, the setting range
is 1 ... 499 = 0 ... 5 V and for the harvester
it is 0 ... 100 = 0 ... 10 bar. The basic set-
ting of the forwarder is 200 = 2 V; 870B,
14 = 1,4 bar; 1270B, 10 = 1,0 bar.

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8. The hydraulic oil level is below the alarm

limit (this applies to the forwarders only).

9. Failure in the charging pressure of the

brakes or hydrostatic supply pressure
(forwarders).

Failure in the charging pressure of the

brakes or brake fluid level too low
(harvesters).

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10. Pressure filter is plugged.

In harvesters the diesel engine is set at idle

when the alarm limit is exceeded.

11. Return filter is plugged.

In harvesters the diesel engine is set at idle

when the alarm limit is exceeded.

12. The alarm limit for the hydraulic oil tem-

perature. For the forwarder, the setting
range is 80 ... 130 degrees centigrade and
for the harvester it is 50 ... 110EC. For
870B, 1270B and 1210B the alarm is en-
gaged as part of the basic setting.

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17. Speeding alarm. For the forwarder, the

setting range is 10 ... 30 km/h and for the
harvester it is 10 ... 35 km/h. The basic
setting of the forwarder is 30 km/h (for
810B) and 26 km/h (for 1110, 1210B,
1410 and 1710). The basic setting is 25
km/h (Germany 20 km/h) for the harvester.

18. The alarm limit of the engine fuel level

and the calibration of the fuel gauge read-
ing. The setting range is 0 ... 100 %, while
the basic setting is 5 %. The setting range
for calibration see section 2.1.5.

Note! The calibration is performed when

the tank is empty.

19. Low battery voltage. The setting range is 0

... 560 = 0 ... 56 V. For the forwarder, the
basic setting is 180 = 18 V and for the har-
vester 200 = 20 V.

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20. Outputs short-circuited or cut off (trans-

mission module).

NOTE! All outputs that are not in use must be ex-

cluded.

21. Outputs short-circuited or cut off (chair

module).

NOTE! All outputs that are not in use must be ex-

cluded.

22. Outputs short-circuited or cut off (crane

module).

NOTE! All outputs that are not in use must be ex-

cluded.

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23. The alarm limit for the hydraulic oil tem-

perature. For the forwarder, the setting
range is 60 ... 90 degrees centigrade. The
basic setting is 70EC.

24. The alarm limit for the engine coolant

temperature. The setting range is 95 ...
110 degrees centigrade. The basic setting
is 98EC.

25. The hydraulic oil level is below the alarm

limit.

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26. One of the control stick measurement val-

ues is out of range.

27. One of the pedal measurement values is

out of range.

28. The alarm limit for the hydraulic oil tem-

perature (applies to harvesters only). The
setting range is 60 ... 90 degrees centi-
grade. The basic setting is 70EC.

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29. Supply pressure (applies to harvesters

only). The setting range is 0 ... 25 bar.
The basic setting is 15 bar.

30. The alarm limit for the engine oil pressu-

re.The basic setting is 2,0 bar (870B); 1,4
bar (1270B).
20

31. A memory error in the module.

The module have to be changed if ’Flash
Error!’ is still on the display after next
switch ON.

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2.1.4 Basic Settings for Forwarder Alarms

No. 810B 1110 1410 1710 1210B Function
1. on on on on on CAN (all modules)
2. on on on on on Engine temperature; 103EC
3. on on on on on CAN (Tr)
4. on on on on on CAN (Cr)
5. on on on on on CAN (Ch)
6. on on on on off Hydraulic oil temperature; 85EC
7. on on on on on Engine oil pressure, 200
8. off off off off off Hydraulic oil level
9. on on on on on Failure in the charging pressure of the
brakes or hydrostatic supply pressure
10. on on on on on Pressure filter
11. on on on on on Return filter
12. off off off off on Hydraulic oil temperature; 85EC
17. on on off off on Speeding alarm
30 26 26 26 26 (basic settings)
18. on on on on on Fuel level, 5 %
148 133 133 133 128 (calibration values)
19. on on on on on Battery voltage; 18 V
20. on on on on on Short-circuit or wire break (Tr)
21. off off off off off Short-circuit or wire break (Ch)
22. on on on on on Short-circuit or wire break (Cr)
23. on on on on on Hydraulic oil temperature; 70EC
24. on on on on on Engine temperature; 98EC
25. on on on on on Hydraulic oil level
26. on on on on on Stick measurement out of range
27. on on on on on Pedal measurement out of range
31. on on on on on Module memory error
Alarms Seventeen and Eighteen will not be re-
corded in the alarm log.

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Alarm Settings for Transmission Module Outputs (Alarm 20):

Output No. 810B 1110 1410 1710 1210B Function

4 on on on on on Drive pump forward
6 on on on on on Drive pump rearward
8 on on on on on Hydraulic motor
10 off off off off off Not used
12 off off off off off Not used
14 off off off off off Engine stop
16 on on on on off Working pump release
22 on on on on on Servomotor
42 off off off off off Not used (low gear)
44 on on on on on High gear
46 on on on on off Service brake
48 on on on on on Release of rear-wheel drive
50 on on on on on Differential lock; front axle
52 on on on on on Differential lock; rear axle
54 on on on on on Release of frame brake
56 off off off off off Working pump pressure increase

Output no. 56 ’ON’: Activate a pressure booster valve, if one of the following additional
devices is in use (needs full working pump pressure):
- Decking blade
- Headboard movement
- Preparedness for clambunk.

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Alarm Settings for Chair Module Outputs (Alarm 21):

Output No. 810B 1110 1410 1710 1210B Function

10 off off off off off Horn (alarm)
12 off off off off off Warning light
14 off off off off off Windshield wiper
16 off off off off off Not used

Alarm Settings for Crane Module Outputs (Alarm 22):

Output No. 810B 1110 1410 1710 1210B Function

2 on on on on on Crane slew left
4 on on on on on Crane slew right
6 on on on on on Main boom up
8 on on on on on Main boom down
10 on on on on on Outer boom out
12 on on on on on Outer boom in
14 on on on on on Extension out
16 on on on on on Extension in
24 on on on on on Rotator counterclockwise
26 on on on on on Rotator clockwise
28 on on on on on Grapple closed
30 on on on on on Grapple open
42 on on on on on Steering left
44 on on on on on Steering right
46 off off off off off Accessory 1 (propo)(dozer blade)
48 off off off off off Accessory 2 (propo)(dozer blade)
50 on off off off off Loader release
52 off off off off off (Grapple saw)
54 off off off off off Accessory 3 (on/off)(clambunk)
56 off off off off off Accessory 4 (on/off)(clambunk)

Outputs 54 and 56 will be ’ON’, if a clambunk has been installed.

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2.1.5 Basic Settings for Harvester Alarms

770, 1070, 1270C, 1470, 870B, 1270B

No. Status Function
1. on CAN (all modules)
2. on Engine temperature; 103EC
3. on CAN (Tr)
4. on CAN (Cr)
5. on CAN (Ch)
6. off Hydraulic oil temperature; 85EC
7. on Engine oil pressure
9. on Failure in the charging pressure of the brakes or brake fluid level too low
10. off *) Pressure filter, 0,7 MPa
11 on Return filter, 0,13 MPa
12. on Hydraulic oil temperature; 85EC
17. on Speeding alarm; 25 km/h (Germany 20 km/h)
18. on Fuel level, 5 %
(Calibration value: -190, -210 (770,1070), -220 (1270B))
19. on Battery voltage; 20 V
20. on Short-circuit or wire break (Tr)
21. on Short-circuit or wire break (Ch)
22. on Short-circuit or wire break (Cr)
23. off Hydraulic oil temperature; 70EC
24. on Engine temperature; 98EC
25. on Hydraulic oil level
26. on Joystick measurement out of range
27. on Pedal measurement out of range
28. on Hydraulic oil temperature; 70EC
29. on Supply pressure; 15 bar
30. on Engine oil pressure
31. on Module memory error

*) optional equipment: on

- Alarms 10 and 11 sets the diesel engine at idle.

- Alarms 17, 18 and 19 will not be recorded in the alarm log.

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Alarm Settings for Transmission Module Outputs (Alarm 20):

770, 1070, 1270C, 1470, 870B, 1270B

Output No. Status Function

4 off Not used (drive pump forward 870B, 1270B: on)
6 off Not used (drive pump backward 870B, 1270B: on)
8 off Not used (drive motor forward/backward 870B, 1270B: on)
22 on Servomotor control
10 on Drive pump forward (not used 870B, 1270B: off)
12 on Drive pump backward (not used 870B, 1270B: off)
14 on Drive motor forward/backward (engine stop 870B, 1270B: off)
16 off Working pump adjustment (1070: on)
42 on Low gear
44 on High gear
46 off *) The thermostatic valve of the hydrostatic system
48 on Release of the front-wheel drive
50 on Differential lock-up
52 on The thermostatic valve of the hydraulic oil
54 off *) Reversing buzzer
56 off Not used
*) optional equipment: on

Alarm Settings for Chair Module Outputs (Alarm 21):

770, 1070, 1270C, 1470, 870B, 1270B

Output No. Status Function

10 off Stairs (1270C, 1270B: on)
12 off Alarm buzzer and warning light
14 off Windshield wiper
16 on Service brake

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Alarm Settings for Crane Module Outputs (Alarm 22):

770, 1070, 1270C, 1470, 870B, 1270B

Output No. Status Function

2 on Crane slew left
4 on Crane slew right
6 on Main boom up
8 on Main boom down
10 on Outer boom out
12 on Outer boom in
14 on Extension in
16 on Extension out
26 on Rotator clockwise
24 on Rotator counterclockwise
30 off Working pump pressure (1070: on)
Levelling right (870B: on), cab slew (Pendo: on)
28 off Levelling left (870B: on), cab slew (Pendo: on)
42 on Frame steering, left
44 on Frame steering, right
46 on Crane tilt in
48 on Crane tilt out
50 on Rotator release (870B, 1270B: off)
52 on Frame brake release (automatic levelling 870B)
54 off Relief valve, lift back pressure (870B, 1270B: on)
56 off Cab sway brake (Pendo: on)

2.1.6 List of Alterations to Basic Values

- All the changes made to the basic values are
recorded in the list of alterations to basic va-
lues. The list will be used by maintenance
personnel.
- If, for instance, the operator changes one of
the basic values, the following information
will be entered into the list: the alteration ma-
de, the time and date of the change, and the
operator number.
- The list can be opened by means of a PC prog-
ram designed for scrolling the list.

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2.2 Crane Settings

Factory settings for S and F drivers’ can be ad-
justed in service premises!
The crane settings are entered by pressing the
crane symbol.
The following image will be displayed (for-
warder):

Here is what the corresponding display will look

like for the harvester:

- In the maintenance mode, the numbers stand

for the same functions as in the operating
mode.

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Press any key marked with a number, letter or

symbol, and you will enter a menu that allows
you to set the parameters related to the function
concerned.

- With the exception of resistance setting (for-

warder) and end damping (harvester), the
functions are the same as those of the corre-
sponding display in the operating mode.
- The setting of the resistance (forwarder)

Set the nominal resistance of the crane coil.

The basic setting is 25.
- The adjustment of the end damping (harvest-
er)
Adjust the end damping. The basic setting is
30 %.

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The setting window of an optional accessory

(forwarders):

- When the dozer blade control switches are

used the speed will be cut down to 80 percent
of the maximum if the system employs a pro-
portional valve. There is no speed limitation
function if an on/off valve is used. Should the
maximum current be adjusted to a level high-
er than 600 mA, the pressure increase func-
tion will be automatically engaged.
- If the function is used as an ’on/off’ function
(dozer blade, for instance), the minimum cur-
rent (E1 and E2) must be set to 998 mA and
the maximum current (E1 and E2) to 999 mA
and the ramps to zero.

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When in the crane display, press the key

and the display will look like the following (for-
warders):

ON

Selection of machine model

The machine model (810B, 1110, 1210B, 1410
or 1710) can be selected by pressing the machine
symbol.
High gear steering
1 = Ministick steering allowed in high gear.
0 = Ministick steering not allowed in high gear.
PWM freq.
Adjustment of the basic frequency of the crane
valve control current.
The basic setting is 140 Hz.
Gear Control (on/off)
’ON’ means that the gear status control is acti-
vated. If the gear has not been properly engaged,
the service brake does not release.
Gear Chair (on/off)
’ON’ indicates that the use of a high gear is per-
mitted when the seat is facing the rear of the ma-
chine.

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Here is what the corresponding display looks

like for the harvester:

25

ON

140

ON

ON

ON

Selection of machine type

Following machine types can be selected:
870B or 1270B (ver 14.14...)
770 or 1070 (ver 14.56...)
1270C (ver 20.01...), 1470 (ver 25.11...).
Valve Res.
The setting of the resistance. The basic value is
25 Ω.
Circ Joy
KCM Mk II: On, KCM Mk I: Off
Tr Mod 1
770, 1070, 1270C, 1470: On
L90 / K170
770, 1070, 1270C, 1470: On
RPM
The maximum value of the engine speed is set
when the crane switch is ON.
To prevent cavitation of the working pump the
TMC does not permit the motor to exceed 1800
rpm at hydraulic temperatures below 40 °C.

NOTE! Temperature monitoring is only initiated

once the crane switch is depressed.

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2.3 Settings of Controls

In the maintenance mode, the functions of the
controls do not differ from those of the operating
mode.

2.4 Base Machine Settings

The base machine menu can be entered by press-
ing the machine symbol.

The maintenance settings of the base machine

can be entered by pressing the key. After
that, the display will look like the following:

NOTE! Do not press the button -A elsewhere

than on the long level surface! See section 2.4.8.

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2.4.1 Gear Ratio, Engine Speed And Driv-

ing Speed

a. The gear ratio of the transmission; R.

The gear ratio can be calculated with the follow-
ing formula: engine speed/pump speed * 100.
Let us look at an example; the speed of the hy-
drostatic motor is 4000 rpm and the pump speed
is 2000 rpm. The gear ratio is 4000 / 2000 * 100
= 200 R.

b. Machine speed; in km/h.

c. Engine speed; in rpm.

2.4.2 Minimum And Maximum Current

Settings for Drive Hydraulic Motor
And Pump
The two left-hand-side columns (F) apply to
driving forward and the two right-hand-side col-
umns (B) to driving backward.

a. M - The minimum and maximum control cur-

rents of the drive hydraulic motor; 0 ... 200 mA.

b. P - The minimum and maximum control cur-

rents of the drive hydraulic pump; 0 ... 200 mA.

2.4.3 Maximum Speed Limit

Spd max - This restricts the maximum speed of
the machine when the high gear has been en-
gaged. If the setting is at 100 percent, there is no
limitation.

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2.4.4 Calibration of Odometer

Spd cal - This is an odometer calibration value
by means of which it is possible to make the
odometer reading match the real distance. The
calibration is performed as follows:
1. Reset the odometer.
2. Propel the machine over a (measured) dis-
tance you know.
3. Compare the odometer reading with the
real distance.
4. If the odometer reading exceeds the actual
distance, increase the calibration value un-
til the odometer reading and the real dis-
tance match.
5. If the odometer reading is smaller than the
real distance, decrease the calibration val-
ue until the odometer reading and the ac-
tual distance match. For example on a real
journey of 100 m, the mileometer shows
103 Þ set value 103.

NOTE! Press twice to shift between the basic

menu and the adjustment window.

2.4.5 Adjustment of Engine Idling Speed

And Maximum Speed
The idling speed (rpm min) and the maximum
speed (rpm max) are adjusted in accordance with
the following chart:

810B 1110 1210B 1410 1710 770 870B 1070 1270B 1270C 1470
rpm min 1000 900 900 1000 900 1000 950 1000 950 950 1000
rpm max 2400 2200 2200 2000 2200 2200 2200 2200 2200 2200 2200

To prevent cavitation of the working pump the

TMC does not permit the motor to exceed 1800
rpm at hydraulic temperatures below 40 °C.

NOTE! Temperature monitoring is only initiated

once the crane switch is depressed.

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2.4.6 Adjustment of Electrical Throttle

Control (810B, 1110, 1210B, 1410,
770, 870B, 1070)
Inj min
1. Disconnect the ball joint of the connecting
rod between the servomotor and injection
pump from the lever of the servomotor.
2. Adjust the mechanical restriction of the
minimum position of the engine injection
pump lever to a position where the lever
rests on the mechanical minimum restric-
tion screw and the engine speed falls short
of the chart value by 50 ... 100 rpm (in 810B,
for example, 900 ... 950 rpm).
3. Set the ’Inj min’ value to 35 (the diesel engi-
ne is not running, the TMC power is on).
4. Adjust the length of the connecting rod bet-
ween the servomotor and the injection pump
precisely to a level that makes it possible to
freely position the rod into its place.
5. Next, start the engine.
6. Allow the engine to idle and adjust the ’Inj
min’ value until the diesel engine speed cor-
responds to the ’Rpm min’ rating given in
the chart (for an 810B, for instance, it is
1000 rpm).
Inj max
1. Set the working rpm to 2100 rpm (810B)
or to 1900 rpm (1110, 1210B, 1410, 770,
1070, 870B).
2. Engage the working rpm (make sure that
crane is not engaged).
3. Having done that, adjust the ’inj max’ val-
ue until the working rpm given above is
reached.
4. Next, disengage the working rpm and re-
adjust to previous working rpm setting.

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2.4.7 Adjustment of Electrical Throttle

Control (1710, 1270B, 1270C, 1470)

Before adjustment is made:

1. The engine must reach the running tem-

perature (over 70EC).
2. Check that the rod between the injection
pump and the linear motor moves freely.
3. Check that the bolts connecting the rod to
the linear motor and to the injection pump
are both in horizontal position.

Adjusting the Mechanical Limiter of the Le-

ver Movement of the Injection Pump

1. First, disconnect the adjusting rod from

the linear motor.
2. Start the engine and, at the same time,
move the lever of the injection pump until
the engine starts.

NOTE! The lever of the injection pump must be

moved in a smooth manner after the diesel engi-
ne has started in order to prevent the engine from
racing. This is because it only takes a slight mo-
vement of the lever to abruptly increase the engi-
ne speed.

3. Adjust the limiter screw of the injection

pump lever to a position where the engine
keeps running although the lever is pres-
sed against the limiter screw.
4. After that, adjust the limiter screw to a po-
sition where the engine stops when the le-
ver is pressed against the limiter screw.
5. Next, open the limiter screw half a turn
and secure the locknut.

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6. Adjust the length of the adjusting rod and

connect the adjusting rod to the linear mo-
tor again (when adjusting the length of the
adjusting rod, make sure that the linear
motor is placed one millimeter away from
its bottommost position when the lever of
the injection pump rests on the limiter
screw).
7. Having done that, make sure that the die-
sel engine stops normally.

TMC Settings

1. Switch on the power systems of the ma-

chine (but do not start the engine).
2. Next, enter the service setting mode of the
base machine.
3. Set the ’rpm_min’ (idling speed) and the
’rpm_max’ (maximum speed). See section
2.4.5.
4. Set the ’inj_min’ to 70 and the ’inj_max’
to 120.
5. After that, start the engine (according to
the instruction manual of the base machi-
ne) and let the engine idle (if the engine
fails to start increase the ’inj_max’ setting
by 10 and repeat the procedure as necessa-
ry).
The engine does not necessarily idle smoothly at
this point.
6. Increase the ’inj_min’ value until the die-
sel engine speed starts rising from the id-
ling speed set.

NOTE! When the speed starts picking up increa-

sing the ’inj_min’ value by a few steps will dra-
matically increase the engine speed.

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7. Having done that, decrease the ’inj_min’

value until the idling speed set is reached
again, and write down the ’inj_min’ value
(if necessary, steps 6 and 7 can be repeated
to ensure that the correct value is recorded).
8. Decrease the ’inj_min’ value recorded by
20 and set this value to serve as the
’inj_min’ value.
9. Set the ’inj_max’ value to 120.

NOTE!

- It pays to fine-tune the adjustments of the mi-

nimum and maximum values while the machi-
ne is still in its operating temperature, as well
as after several hundred running hours.
- The minimum value is too high if the engine
speed races when the load is suddenly elimi-
nated.
- When the minimum value is too small variati-
ons in loading may result in engine speed vib-
rations.
- When the maximum value is too high variati-
ons in loading may result in engine speed vib-
rations.
- If the maximum value is too low a sudden loa-
ding may result in a steep drop in the engine
speed.

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2.4.8 Automatic Adjustment of Currents

During Driving

NOTE! What is needed here is a 150-meter long

level surface; a forest truck road, for instance.
Always write the old values on the paper, if the
automatic adjustment have to be interrupted.

NOTE! The automatic adjustment have to be

done without the bogie tracks!

1. Press the A button.

2. Set the driving direction (forward or back-
ward) and floor the accelerator pedal.
3. Hold the accelerator pedal down until
frames appear around the pump and motor
boxes of the driving direction in question.
4. After that, release the accelerator pedal
and allow the machine to stop.
5. Next, change the driving direction and
floor the accelerator pedal again.
6. Hold the accelerator pedal down until
frames appear around the pump and motor
boxes of the driving direction concerned.
7. Having done that, release the accelerator
pedal and allow the machine to stop.
8. Next, press ’OK’.
9. If the engine forward and backward cur-
rents differ from each other, set (manual-
ly) the smaller value to serve as the engine
minimum current and the larger value to
serve as the maximum current.

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NOTE!

- If the minimum current of the pump is too high

and the driving direction is engaged, the ma-
chine will attempt to start moving (while the
brakes are still on) even though the accelera-
tor pedal is not pressed.
- If the maximum current of the pump is too low
the machine will not reach its top speed.
- If the maximum current of the pump is too
high driving may be jerky.
- If the minimum current of the motor is too low
driving may be jerky.
- If the maximum current of the motor is too low
the machine will not reach its top speed.
- If the maximum current of the motor is too
high driving may be a bit swayful.

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2.5 Setting of Basic Values

The resets menu can be entered from the pass-
code display of the maintenance mode by keying
in a passcode that corresponds to the setting of
basic values. After that, the display will look like
the following:

a. Service parameters: Those parameters only that

are seen in maintenance windows.

b. Driver parameters: The individual adjustment

values of each operator.

c. Times: The resetting of running hours.

d. TMC time: The copying and using of the ’Power

On Total’ hours as TMC hours.

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By pressing one of the boxes you can retrieve the

basic settings of maintenance parameters or op-
erator parameters, or you can reset the running
hours or copy and use the ’Power On Total’
hours as TMC hours. The following texts will
appear on display:

NOTE! When maintenance parameters are se-

lected, the basic values are also set for the power
transmission parameters.

Loading the basic value settings does not influ-

ence the alarm settings.

- Depending on the choice, the pressing of the

’OK’ key will either load the basic values of
the maintenance or operator parameters, or it
will reset the running hours or it will copy and
use the ’Power On Total’ hours as TMC
hours.
- There are separate, specific manufacturer set-
tings for each forwarder (810B, 1110, 1210B,
1410 and 1710).
- The manufacturer settings specific to each
machine have an impact on the parameters
displayed in the maintenance windows (ser-
vice parameters) and on the parameters speci-
fic to each operator (driver parameters).

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3. Functional Requirements for

Inputs

3.1 General
The function of the seat safety switch is a prereq-
uisite for all outputs. In other words, no function
can be activated unless the operator sits on the
seat. When using the crane controls, articulated
frame steering stick or the accelerator pedal, it is
possible to stand up for a moment and the func-
tion will not be interrupted, but when engaging
a function the operator must always be seated.

3.2 Function of Driving Power Trans-

mission

3.2.1 Displacements And Control Currents

of Drive Pump And Motor Control

a. Function
TMC adjusts the angles of the transmission
pump and the hydraulic motor on the basis of in-
formation from the controls and on the basis of
the load.

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b. Requirements
- After releasing the parking brake the driving
direction selector must be shifted into neutral
for a brief moment and, similarly, the acceler-
ator pedal must be released to the upper posi-
tion (dead zone).
- The stairs are up.
- The high or low gear is engaged.
- The engine is running (oil pressure).
- There are no alarms activated that would pre-
vent driving.
The machine speed and the pump and motor
control current will change in relation to the
position of the accelerator pedal.
The motor current will start increasing from the
zero level the moment the machine starts moving.
If TMC does not have a signal from rpm sensor
of the transmission motor, it does not give con-
trol current to the motor. The maximum speed of
the machine is then 3 km/h in a low gear. In this
case there is no display either driving speed or
trip odometer.

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3.2.2 Engine Speed Control

a. Function
The position of the fuel injection pump is con-
trolled by means of a servocontrol (up/down).
Feedback data (Inj.Pos) will be given of the in-
jection pump position.

b. Requirements
For cold-weather starting purposes the position
of the servomotor is in relation to the position of
the accelerator pedal.

3.2.3 High/Low Gear

a. Function
The high gear is engaged by the high gear output.
Similarly, the low gear is engaged by the low
gear output.
When shifting the pump receives short impulses
back and forth for five seconds. This is to ensure
that the shifting process is successful. If the Gear
Control is’ON’, the service brake will disengage
only if the shifting process is completed as indi-
cated by the sensor.

b. Requirements
- The low gear output will be activated if low
gear is selected and the driving direction se-
lector is in neutral. To change gear: the ma-
chine must not be moving (brake on) and the
gear selector switch must be pressed.
- The high gear output will be activated if high
gear is selected and the driving direction se-
lector is in neutral. To change gear: the ma-
chine must not be moving (brake on) and the
gear selector switch must be pressed.

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3.2.4 Service Brake

a. Function
The service brake is engaged by the output.

b. Requirements
The output will be activated if the following re-
quirements are met:
- The parking brake is disengaged.
- If the machine comes to a halt within one sec-
ond after the pump current of the driving
power transmission has dropped below the
minimum current level.
- The power transmission stands still, the ma-
chine does not move.

3.2.5 Release of Rear-Wheel Drive (For-

warders) Or Front-Wheel Drive (Har-
vesters)

a. Function
If the output is activated the rear-wheel drive of
the forwarder and the front-wheel drive of the
harvester will be released.

b. Requirements
The output will be activated if:
- The high gear has been engaged and the rear-
wheel drive (front-wheel drive) switch is not
pressed.
The output will be deactivated if:
- The low gear has been engaged or the rear-
wheel drive (front-wheel drive) switch is
pressed.

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3.2.6 Differential Lock; Front-Wheel Drive

a. Function
The front axle differential lock is engaged by the
output.

b. Requirements
The output will be activated if:
- The machine does not move and the differen-
tial lock switch is pressed.
The output will be deactivated if:
- The machine does not move (the service
brake will be engaged within a second) and
the differential lock switch is not pressed.
If the differential lock switch is pressed during
driving the machine will stop automatically and
the lock will be engaged. After this, the driving
speed can be regained (Harvesters).

3.2.7 Differential Lock; Rear-Wheel Drive

This output only applies to forwarders and the
function does not differ from that of front-wheel
drive outputs.

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3.2.8 Release of Frame Brake

a. Function
The output shifts the frame brake valve which
blocks the pressure from the lift cylinder and
connect the frame brake pressure to the tank.

b. Requirements
The output will be activated if the following re-
quirements are fulfilled:
- The parking brake is disengaged.
- The driving direction is engaged and the ma-
chine starts to move.
- The service brake is disengaged.
- The release switch of the frame brake is acti-
vated.

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3.2.9 Excitation Valve of Working Pump

a. Function
The output controls the hydraulic pump excita-
tion valve which reconnects pump pressure to
the pump’s LS line.

b. Requirements
The output will be activated if optional accesso-
ries are used (for example: the headboard move-
ment, dozer blade, clambunk or grapple saw)
(Forwarders).

3.2.10 Unloading of Working Pump (810B,

1110, 1410, 1710)

a. Function
What is controlled by the output is the relief valve
of the working pump of the hydraulic system. The
valve opens the line between the tank and the LS
line, thus unloading the working pressure.

b. Requirements
The output will be activated when the parking
brake is on.

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3.3 Crane Module

3.3.1 Control of Crane Valves And Articu-

lated Frame Steering Valves

The control outputs of the crane function valves,

accessory valves and articulated frame steering
valves are all similar. This is why the following
description applies to all crane control outputs.

a. Function
The function below indicates how the current of
the crane valves depends on the position of the
crane controls with various progression values.
Let us look at the example: The minimum cur-
rent is 200 mA, maximum current 450 mA, dead
zone 10 % and the progression values are 0 %,
20 %, 40 %, 60 %, 80 % and 100 %.
VALVE CONTROL CURRENT (mA)

JOYSTICK POSITION (%)

Joystick position (%)

Valve control current (mA)
Deadband = The point where the dead zone ends
and the function is engaged.

NOTE! After engaging the crane functions, the

control sticks must first be shifted to the center
position before the crane can be operated.

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b. Requirements
The requirements apply to crane functions and
accessories. There are no requirements for the
function of the articulated frame steering.
If the output current is to follow the function
above, the following requirements must first be
fulfilled:
- The parking brake is disengaged.
- The crane is engaged.
- There are no alarms activated that would stop
operation.

3.3.2 Crane slew float mode

a. Function
The output connects crane slew to float mode
(810B only).

b. Requirements
The output is activated if crane slew is connected
to float mode.

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3.4 Chair Module

3.4.1 Audible alarm

The control output of the alarm buzzer.

3.4.2 Warning Light

The control output of the warning light.

3.4.3 Switch Leds

The light is on if the function concerned is en-
gaged:
- Front-wheel drive differential lock.
- Rear-wheel drive differential lock.
- Turn off crane (on 810B crane
rotation float mode).
- High gear.

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