PDF Operator’s Manual Liebherr R 906 Classic Hydraulic Excavator - 3 MB
Learn to operate your Liebherr R 906 Classic hydraulic excavator with precision and safety using the official operator's manual.
This document covers all the essential controls, safety features, and daily maintenance tasks required for proper use.
Following these guidelines will help prevent accidents and ensure your machine operates at peak efficiency.
It's a must-have for every operator to get fully acquainted with the machine's functions and capabilities.
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en
Operating manual
Hydraulic excavator
R 906 Classic
from serial number 31049
Document identification
ORIGINAL OPERATING MANUAL
Order number: 10359873
Edition: 05 / 2016
Valid for: R 906 Classic from serial number 31049
Author: LFR - Technical documentation department
Product identification
Manufacturer: Liebherr-France SAS
Type: R 906 Classic
Type no.: 1140 / 1141 / 1283
Conformity: CE
Address
Liebherr-France SAS
2 avenue Joseph Rey, B.P. 90287
F - 68005 Colmar Cedex
--- Page 3 ---
1 Product description
1.1 Assembly - overview
This section comprises an overview of the machine and descriptions of the
components shown.
1.1.1 Machine and construction equipment
Fig. 1-1 Machine with construction equipment
100 Upper carriage 330 Boom 360 Tilt cylinder
200 Chassis 340 Stanchion cylinder 370 Bucket
300 Hydraulic jack 350 Shovel arm
copyright by
R 906 Classic / 10359873 1-1
MJFCIFSS
--- Page 4 ---
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--- Page 8 ---
Operating manual Safety instructions, Signs on the machine
Safety Instructions
to facilitate the fight against fire in
case of.
Safely starting the machine
machine.
unlocked to facilitate access in case
of emergency.
the machine are present and legible.
rrors clean. Secure doors and windows
against unintended movement.
nity of the machine that it is about to
start.
Safely getting up
the machine, position the machine on
even, horizontal ground. Position the upper structure with the undercarriage in
such a way that the steps and ladders are aligned with each other.
ils (grips) are in good condition. In
particular, ensure that they are free of dirt, oil, ice and snow.
in all weather conditions, the door seals
must be dusted with talc or silicon at least every two months or more often if
required. The door hinges and locks should be greased regularly.
method, i.e. two hands and one foot or two feet and one hand must always be in
contact with the access system at the same time.
as necessary and open it, while paying attention to remain out of its swing radius
before you climb any higher. External influences, such as wind, can make it more
difficult to open doors.
Because of this, always lead along the door with your hand during the whole
opening motion. Ensure that the door locks in place when reaching its open
position, so to prevent it can slam open and shut.
he three-point support and sit down in the
on as you enter the cab.
lever,
Close the door thereafter using the both handholds mounted to the inner face of
the door frame. Only after it tilt down the safety lever, and start the machine.
ur safety belt if you wish to work with the door open.
l support or employed as a component of
a larger installation (uppercarriage used on a pontoon, on a gantry crane,...), also
consider the safety instructions in to
machine relating to a safe getting up.
copyright by
R 906 Classic / 10359873 2-5
MJFCIFSS
--- Page 9 ---
Operating manual Safety instructions, Signs on the machine
Servicing the machine safely
Avoiding accidents
total weight certified for the roll-over protective structure being exceeded:
incidents:
Avoiding injuries
structure of the
operator if the safety belt is fastened.
cab, for example installation of
area. Loose objects must be stored securely.
Protective devices (FOPS and Frontguard)
r offers a range of optional protection
systems for the operator in accordance with ISO 10262.
cab roff and front is bolted onto the
uppercarriage, representing an independent protection system.
cab roof and windscreen is bolted onto
of the protective system.
incidents:
2.4 Servicing the machine safely
General safety instructions
carried out by specially trained
personnel.
copyright by
R 906 Classic / 10359873 2 - 15
MJFCIFSS
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Operating manual Safety instructions, Signs on the machine
Signs on the machine
Signs for all countries
Signs for the USA and
(except the USA and
Canada
Canada)
Plate 30: Lubrication chart (engine)
Indicates the maintenance operations for the Diesel
engine.
Plate 35: Loading and lashing points
Indicates the positions of the loading and lashing
points, as well as the relevant weight of the machine.
Indicated values are maximal values. Actual values
may be different.
Plate 36: Waxoyl*
Indicates the corrosion protection of the pistons
rods.
Plate 40: Lashing point
The use of lashing points depends on the transport
method. See chapter "Transport".
Plate 41 : Operating manual
Use only the operation and maintenance manual
delivered with the machine.
Plate 42 : Roll-over protection structure (ROPS)
Specifies that modifications or repairs to the roll-over
protection structure (ROPS) are prohibited. Refer to
the operating manual for further information.
copyright by
R 906 Classic / 10359873 2 - 25
MJFCIFSS
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Operating manual Control and operation
Operating and control elements
Caution!
On machines destined to the North American market, and which are fitted with a
lifting magnet, the functions of the push buttons and switches in the joysticks differ
from those described above.
Also with some specific co
wish, the functions may be different.
Always check the functions of special equipments before beginning to work with the
machine.
Function of push buttons and switches on US version with lifting magnet
For machines destined to the North American market, and which are fitted with a
lifting magnet, the functions are as follows:
Left joystick Right joystick
Push button S5L: Push button S6L:
For optional equipment Rotating device left
See in this chapter "Cut off by end See in this chapter "Turning, rotating,
switches of attachment movements bolting and unbolting the add-on unit"
(option)". and "Control of the swivel rotator
(option)".
Push button S5M: Push button S6M:
Horn For optional equipment
See in this chapter "Float position of the
boom with shovel attachment" in the
part "Working attachment control"
Push button S5R: Push button S6R:
For optional equipment Rotating device right
See in this chapter "Drive warning See in this chapter " Turning, rotating,
device (optional extra)" bolting and unbolting the add-on unit"
and "Control of the swivel rotator
(option)".
Push switch S55: Rocker switch S57:
Lifting magnet Reserve
See in this chapter "Lifting magnet
control system (optional equipment)".
Tab. 3-2 Functions of push buttons and switches in standard execution for US
version with lifting magnet
copyright by
R 906 Classic / 10359873 3-5
MJFCIFSS
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Operating manual Control and operation
Operating and control elements
H12 Indicator light, battery charge
The indicator light illuminates if the ignition key is placed in the contact position.
The indicator light goes out as soon as the engine is started.
When the machine is operating, this indicator light illuminates if the alternator belt or
the electrical charging system are defective.
Bring the engine to a low idle immediately.
Allow the engine to idle for approximately 5 seconds.
Switch off the engine.
Find and correct the cause of the problem.
H19 No function
H20 No function
H23 No function
H24 No function
Area D : Menu control buttons
Fig. 3-7 Menu control buttons
The screen can be operated using the following 4 buttons:
S349: Back button
S350: Down button
S351: Up button
S352: Menu* button
* = Change from main to submenus
These buttons can be used to jump from the main menu to the submenus or to move
from page to page.
Area C: LCD Screen
To change the screen contrast:
Press button Menu and arrow button Up (higher contrast) or Down (lower
contrast) simultaneously.
The value set will be saved.
copyright by
R 906 Classic / 10359873 3 - 15
MJFCIFSS
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Operating manual Control and operation
Operating and control elements
Fig. 3-11 Resetting the daily operating hours counter
Press the Up arrow key.
The OK which is not crossed out will be displayed with a black background.
Press the Menu key.
The operating hours will be reset to 0.
The arrow key symbols Up and Down and the Menu symbol will no longer be
displayed.
To exit the menu:
Press the Back key.
The sub-menu will be aborted.
Menu " Set SF" - Rotation speed of the tool
This menu enables to adjust the rotation speed of the tool.
This menu is only available when joyticks with proportional function are mounted on
the excavator.
.
Press the Up or Down key.
The rotation speed of the tool can be adjusted.
Note!
The push button SF S354 has no function.
Menu "Set Service" - confirmation of the execution of a recurring
service work
This menu gives information about the falling due of the next service work and allows
to confirm the execution of the service work after it just has been carried out.
copyright by
R 906 Classic / 10359873 3 - 25
MJFCIFSS
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Operating manual Control and operation
Operating and control elements
"list S-Exxx" : Operating faults in service mode
Fig. 3-25 List of operating faults appeared in service mode
No information will be displayed in this menu if the service connector is not
connected.
When a service connector is pluged in:
The submenu list S-Exxx lists all the operating faults, just like the submenu list
Exxx, but this time only faults appeared in service mode, i. e. when a service
connector was connected.
The sub-menu allows to separate the faults occuring during maintenance works,in
particular during the troubleshootings.
For each error, an overview is shown and can be paged in just like for the "list Exxx"
selection.
When exiting the service mode, the memory "list S-Exxx" is reset, the service mode
operating faults are not stored.
Menu "set clock"
Fig. 3-26 Clock setting
After selection of the function the digit completely right is inversely displayed.
Press key UP or DOWN to adjust the selected digit.
Press MENU key t
the next digit is selected.
Repeat the operation until the right time is set.
Press the Enter key to store the set number.
The message "update xx: xx" appears shortly on screen to confirm the new
setting and the display automatically returns to main screen.
copyright by
R 906 Classic / 10359873 3 - 35
MJFCIFSS
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Operating manual Control and operation
Access and equipment of the cab
3.2.2 Safety lever
Fig. 3-33 Safety lever
The safety lever is mounted to the left control console and is designed to block the
way to the cab when moved in lower position.
Caution!
The operator may only push the lever down when he is again seated in the
the safety lever in upper position so to
interrupt the servo control circuit:
no working movements are possible if the joysticks or pedals are accidentally
actuated while entering or leaving the cab,
the swing brake applies automatically (the LED in the touch S17 is lighting),
the swing brake can no longer be released using the touch S17.
After you are seated again and before you begin operating the machine, push the
lever down in lower position:
the swing brake recovers the previous state (applied or released) before the
lever had been pulled up,
the pilot control devices (joysticks and pedals) become active again.
3.2.3 Operator seat
Danger!
The adjustment of the operator seat could result in an inadvertent actuation of
control elements, moving the machine or the attachment.
This can lead to injury to persons or damage to property.
Do not adjust the operator seat while driving the machine.
Move the safety lever up.
copyright by
R 906 Classic / 10359873 3 - 45
MJFCIFSS
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Operating manual Control and operation
Access and equipment of the cab
Make sure the ignition is on.
Press the switch S22.
The front roof headlights 3 or headlights on ballast weight 5 are activated.
The LED in the switch illuminates.
Press the switch S22 again.
The front roof headlights 3 or headlights on ballast weight 5 are deactivated.
The LED in the switch goes out.
Rotating beacon (option)
Pressing the switch S41 activates the rotating beacon 4.
Make sure the ignition is on.
Press the switch S41.
The rotating beacon 4 is activated.
The LED in the switch illuminates.
Press the switch S41 again.
The rotating beacon 4 is deactivated.
The LED in the switch goes out.
Rear roof headlights (option)
Pressing the switch S275 on the right control panel activates the rear roof
headlights 6.
Make sure the ignition is on.
Press the switch S275.
The rear roof headlights 6 are activated.
The LED in the switch illuminates.
Press the switch S275 again.
The rear roof headlights 6 are deactivated.
The LED in the switch goes out.
3.2.12 The heater and air conditioner
The cab is equipped with a heating and air conditioning system as standard. The
heating and air conditioning system is used to heat, cool and ventilate the cab.
copyright by
R 906 Classic / 10359873 3 - 55
MJFCIFSS
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Operating manual Control and operation
Access and equipment of the cab
Press the key 1.
The current time is now displayed
the colon in the time indication area 5 flashes.
Setting the preset times:
Press the key 1 once, twice or three times to call the preset time "1, 2 or 3".
the corresponding preset 5 time is displayed in field 5 of the control module
and the number of the preset time is indicated (symbol 8).
Set the preset time using keys 2 and 3.
Press the key 4 to activate or to deactivate the selected preset time.
when the preset time is activated, the symbol "ON" is displayed.
The number "1 , 2 or 3" of the activated preset time is displayed in the symbol
field 8.
1 - Key to activate the setting capabilities
2 - Time setting key backwards
3 - Time setting key forwards
4 - Key ON / OFF
to activate - deactivate the preset time
5 - Current time, preset time and heating
time
6 - Symbol for activated preset time
7 - Symbol for heater operation
8 - Symbol for preset time 1, 2 or 3
Operating functions of the Mini-Clock
Switching on the heater:
Press the key 4.
The stanstill heater is on. The symbol 7 and the remaining heating time (in
minutes) are displayed on the control module.
Turning off the heater:
Press the key 4.
The heater fan continues running for about 150 seconds (after running).
On the control module the symbol 7 disappears and the current time is now
displayed.
Continuous operation:
Press the key 3 and keep it depressed, at the same time press the key 4.
the heater will now remain switched on until the key 4 (switching off the heater)
is pressed again.
Activating / deactivating the preset time:
Press the key 1 to select the preset time "1, 2 or 3".
Press the key 4 to activate or to deactivate the selected preset time.
when the preset time is activated, the symbol "ON" is displayed.
The number "1 , 2 or 3" of the activated preset time is displayed.
copyright by
R 906 Classic / 10359873 3 - 65
MJFCIFSS
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Operating manual Control and operation
Setting the machine into operation
Danger!
When actuating the emergency off switch on machines fitted with a lifting magnet,
the magnetic plate is demagnetized at the same time, this causing the holded load
to fall down.
Never fit out with an emergency off switch an hydraulic excavator that is already
equiped with a lifting magnet!
And inversely!
After actuation of the emergency off switch S2-1 or S34, the switch will remain in a
locked position. The switch must then be unlocked before attempting to restart the
Diesel engine.
Lightly depress the operating knob of the emergency off switch and turn it
clockwise.
Diesel engine stop with engine after running (Option)
To save the Diesel engine and its turbocharger, the machine can be fitted out at
With this optional equipment, the Diesel engine does not turn off immediately when
the ignition key is returned to "0" position, but he continues running at low idle for a