PDF Operating Instructions Liebherr A 309 Litronic Hydraulic Excavator - 1 MB
The official operating instructions for the Liebherr A 309 Litronic Hydraulic Excavator are essential for all operators.
This manual provides in-depth knowledge of the machine's controls, functions, and safety systems.
It also outlines the daily and weekly maintenance checks required to keep the excavator in top working condition.
Following these guidelines ensures safe, efficient operation and prolongs the life of the equipment.
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en
Operating instructions
Hydraulic excavator
A 309 Litronic
from serial number 26392
Document identification
Id. number: 8720354
Edition: 10 / 2005
Valid for: A 309 Litronic from serial number 26392
Author: LHB - Technical documentation department
Product identification
Manufacturer: LIEBHERR Hydraulikbagger GmbH
Type: A 309 Litronic
Type no.: 717
Conformity: CE
Address
Liebherr Hydraulikbagger GmbH
Liebherr-Straße 12
88457 Kirchdorf / Iller, Germany
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Operating instructions Product description
Technical data
1.1.3 Undercarriage
Fig. 1-3 Undercarriage
600 Transmission 4000 Steering axle
1000 Rotary connection 4100 Rigid axle
1500 Outrigger support 9680 Step with toolbox
1700 Dozer blade 9690 Step
1.2 Technical data
Please refer to the accompanying technical description.
A 309 Litronic / 8720354 1-3
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Operating instructions Safety information, signs
Signs on the machine
Sign 30: Lubrication chart, engine
Refers to the maintenance intervals for the Diesel engine.
Sign 32/62: Speed sign 16, 20 km/hr. (only for Germany)
Displays the construction-dependent top speed of the machine.
Sign 35: Loading and anchoring points
Identifies the positions of the loading and anchoring points, as well as the relevant
weight of the machine.
Sign 40: Latch point
Sign 45: Tackle lifting point
A 309 Litronic / 8720354 2-7
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Operating instructions Control, operation
Operating and control elements
Indicator lights
H7 Engine oil pressure H26 Quick-change adapter*
H11 Preheat H167 Direction of travel forwards
H12 Battery charging H168 Direction of travel backwards
H13 Air filter contamination H175 Engine overheating
H15 Hydraulic oil temperature H176 Automatic full floating axle
H16 Overload warning device* H186 Drag bearing
H18 Coolant level H196 Scrap cutter / sorting grab*
H19 Turn signals H311 Full floating axle locking
H20 Indicator light, parking brake H336 Water in fuel filter
H23 Accumulator charge pressure
(Operating brake)
* Optional extras
Operation
R75 Speed adjustment S47 Quick-change adapter*
S18 Overload warning device* S241 Hydraulic hammer*
S19 Rotary grab actuator S335 Switching supports
S21 Crawling speed S360 Acknowledge quick-change
adapter buzzer*
S42 First gear S422 Radio mute
* Optional extras
3.1.3.2 Control panel B
Fig. 3-5 Control panel B
S20 Automatic idling 13 Heating system / heating and air
conditioning system*
S74 Immobilizer* S16 Parking brake
A 309 Litronic / 8720354 3-5
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Operating instructions Control, operation
Operation
To release the door latch:
The door is secured in latch 2.
Move the lever 4 next to the cab frame outward.
The door is now unlocked.
Close the door.
3.2.2 Safety lever
Fig. 3-10 Safety lever
For safety purposes, the left-hand control desk is provided with a safety lever.
Caution!
The safety lever must always be pushed up into its highest position (see arrow)
when entering or exiting the cab.
When the safety lever is pushed up, the pilot control pressure is interrupted. This
means that:
stick or foot pedals, are operated.
e (indicator light in switch S17 illuminates).
S17.
By moving the safety lever to its lowest position, the original switching states of the
slewing gear brake and its switch S17 will be recreated and the pilot control devices
are active.
Before starting work from the operator's seat, the safety lever must be pushed to
its lowest position.
A 309 Litronic / 8720354 3 - 15
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Operating instructions Control, operation
Operation
3.2.11.2 Attachment headlight, front
Front roof headlight (option)
With the ignition turned on, the roof and attachment headlights are turned on by
pressing switch S22.
This switch has two settings:
Push the switch in position 1 down (center position).
The front work headlight is turned on.
Push the switch in position 2 down (final position).
The front work headlight is turned on.
The front roof headlight is turned on.
3.2.11.3 Rear roof headlight (option)
With the ignition turned on, the rear roof headlight is turned on by pressing switch
S22-1.
This switch has two settings:
Push the switch in position 1 down (center position).
No function.
Push the switch in position 2 down (final position).
The rear work headlight is switched on.
The rear roof headlight is turned on.
3.2.11.4 Rotating beacon (option)
With the ignition turned on, press switch S8 to turn the rotating beacon on.
Press switch down.
The rotating beacon blinks.
The indicator light in the switch lights up.
Press switch up.
The rotating beacon is turned off.
The indicator light in the switch turns off.
3.2.12 Heating system / heating and air conditioning system (op-
tion)
3.2.12.1 Overview
The cab is equipped with a heating system as standard. The heating system can be
used to heat and ventilate the cab. The switches for heater operation are located on
control panel B.
On request, the machine can be equipped with an air conditioning system.
A 309 Litronic / 8720354 3 - 25
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Operating instructions Control, operation
Operation
3.3.3 Jump start procedure
Danger!
When connecting to jump start batteries, old batteries can be subject to increased
gas formation.
Wear safety glasses and protective gloves during the jump start procedure and
avoid open flames and creating any sparks in the vicinity of the discharged ve-
hicle battery. DANGER OF EXPLOSION!
Only use jump start cables with a sufficient cross section. Always follow the es-
tablished jump starting procedure.
3.3.3.1 Connecting the batteries
First connect the cable to the positive terminal (+) of the discharged battery and
then to the positive terminal (+) of the jump start battery.
Connect the second cable to the negative terminal (-) of the discharged battery
and then to the negative terminal (-) of the jump start battery.
Start the engine as described above.
Caution!
Before removing the jump start cable, be sure to bring the Diesel engine of the
jump started machine into low idle.
For safety reasons, turn on a large user, such as work headlights, uppercarriage
lighting etc. to avoid overvoltage. The electronics could otherwise be damaged.
3.3.3.2 Disconnecting the batteries
First remove the cable from the negative terminal (-) of the jump start battery and
then from the negative terminal (-) of the discharged battery.
Remove the second cable from the positive terminal (+) of the jump start battery
and then from the positive terminal (+) of the discharged battery.
Check the electrical functions of the machine.
For battery care and maintenance, see the chapter "Battery care".
A 309 Litronic / 8720354 3 - 35
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Operating instructions Control, operation
Operation
Locking the oscillating axle
Turn switch S75 to position 1.
The indicator light H311 lights up.
The oscillating axle is permanently locked.
The stability of the machine is increased.
Turn on the oscillating axle automatic
Danger!
When the automatic oscillating axle lock automatic is turned on (switch S75 in po-
sition A), releasing the operating brake will release the oscillating axle lock.
This results in a reduction of the stability of the machine and can cause the machine
to tip over when a load is lifted and the uppercarriage is turned.
For safety reasons, the oscillating axle cannot be unlocked when the system is
overloaded.
If the machine has to be moved with a raised load (e.g. filled bucket, load sus-
pended on safety hook), you must turn off the automatic oscillating axle lock and
permanently lock the oscillating axle (switch S75 in position 1) before taking on
the load.
Turn switch S75 to position A.
The indicator light H176 lights up.
When the operating brake is applied, the oscillating axle is automatically
locked in the current position and is automatically unlocked again when the op-
erating brake is released.
Note!
When working with the excavator, we recommend to lock the oscillating axle.
If possible, unlock the oscillating axle before travelling (without a load): Turn
switch S75 to position 0.
3.3.9 Support
Fig. 3-46 Support variants
A 309 Litronic / 8720354 3 - 45
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Operating instructions Control, operation
Working with the machine
3.4.6 Joystick functions
Caution!
The machine is delivered in series with PCSA controls.
On request, the machine can be equipped with a control system that deviates from
the PCSA controls (e.g. LIEBHERR control). In this case, the additional operating
instructions for this control system must be observed.
The joystick functions described here refer exclusively to PCSA controls.
3.4.6.1 Operating the stick cylinder
The stick cylinder is operated using the left joystick 4.
Fig. 3-54 Operating the stick cylinder
Pull the joystick back a.
The stick will be retracted.
Push the joystick forwards b.
The stick will be extended.
3.4.6.2 Operating the boom cylinder
The boom cylinder is operated using the right joystick 3.
Fig. 3-55 Operating the boom cylinder
Pull the joystick back g.
The attachment will be raised.
Push the joystick forward h.
The attachment will be lowered.
A 309 Litronic / 8720354 3 - 55
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Operating instructions Control, operation
Installation and removal of attachment parts
3.5.4 Installation and removal of grapple on stick
Fig. 3-64 Installation and removal of grapple on stick
A 309 Litronic / 8720354 3 - 65
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Operating instructions Control, operation
Installation and removal of attachment parts
3.5.7.3 Operating elements
Fig. 3-75 Operating elements for the hydraulic quick change adapter
Use switch S19 to activate the auxiliary hydraulic device for the grapple rotator and
quick change adapter.
Press switch down.
The auxiliary hydraulic device is activated.
The indicator light in the switch lights up.
Press switch up
The auxiliary hydraulic device is deactivated.
The indicator light in the switch turns off.
Press button S47 to activate the quick change adapter function.
Press the button down and hold.
The quick change adapter is activated.
The indicator light in the button lights up.
Press push buttons L and R to lock and unlock the work tool.
The indicator light H26 lights up during the unlocking procedure or when the locking
pins are retracted. The buzzer in the cab sounds simultaneously.
3.5.7.4 Two-hand operation
The quick change adapter is activated via a two-hand control. The locking pins can
only be moved at first if button S47 is pressed and held down and one of the push
buttons L or R are pressed simultaneously.
The control is equipped with a retaining function, allows both joysticks to be operated
simultaneously for the installation or removal of working tools. If one of the push but-
tons, L or R is continually pressed, then button S47 can be released and the direction
of movement of the locking pins is retained.
If the direction of movement is to be changed, the key switch S47 must be pressed
down again and the corresponding push button L or R must be pressed.
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Operating instructions Control, operation
General working methods
3.6.4 Loading the transport vehicle
Danger!
Risk of fatal injury due to falling digging material.
Do not load the transport vehicle so high that the digging material falls over the
walls of the vehicle.
Make sure that there is no-one within the danger zone or in the transport vehicle
when loading.
Fig. 3-86 Emptying digging material
If possible, the machine should be positioned higher than the transport vehicle to
avoid having to lift the digging material unnecessarily.
Position the transport vehicle in such a way that it can be loaded from the rear or
from the side.
Move the attachment of the machine over the loading surface of the transport ve-
hicle.
Distribute the digging material evenly over the loading area of the transport vehi-
cle by moving the backhoe bucket and stick out, turning the superstructure and
possibly also moving the boom.
If the backhoe bucket is not sufficiently emptied or there is still digging material in
the backhoe bucket, curl the backhoe bucket in and out several times to loosen
the digging material.
3.6.5 Working with the hydraulic hammer
Please also refer to the operating instructions provided by the manufacturer of the
hydraulic hammer.
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Operating instructions Control, operation
Transport
Danger!
Standing under the raised machine is not permitted!
Raise the machine carefully with the crane and load.
When putting the machine back into service, proceed as outlined in the operating
and maintenance instructions.
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5 Maintenance
5.1 Maintaining the machine safely
5.1.1 General Safety instructions
ied out by trained expert technicians.
ods for repeat checks / inspections as
outlined in the Operating manual. Always use appropriate tools to carry out main-
tenance work.
manual to see who is authorized or required to perform certain work.
The tasks listed under daily / weekly may be carried out by the machine operator
or maintenance personnel after having received appropriate instructions.
The remaining tasks may only be carried out by expert technicians with appropri-
ate training.
rements set forth by the manufacturer.
This is always ensured with Original spare parts.
intaining the machine. For certain work,
safety glasses and protective gloves are required, in addition to a hard hat and
safety boots.
the machine during maintenance.
work. Make sure he knows the person who is in charge of the work.
nance work on the machine on firm and level ground, with the attachment placed
down and the engine shut off.
re you always tighten any loosened
screw connections.
tenance and repairs, make sure that after completion of work, the safety devices
are reinstalled and checked for proper function.
hen working under the machine, make
sible and attached to the starter switch.
Pull the ignition key and close the battery master switch.
5.1.2 Cleaning
n the machine, especially connections
and fittings to remove oil, fuel or cleaning substances.
Do not use harsh cleaning products and use only lint-free cleaning cloths.
eaning products or steam within the first
two months after delivery (or after repainting).
cleaning products,
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Operating instructions Maintenance
Lubricants and operating fluids
Danger!
When checking and changing lubricants and operating fluids, ensure that the fol-
lowing precautions are adhered to:
Unless otherwise indicated, carry out all work on the machine on level, solid
ground and with the engine shut down.
Whenever you access the engine compartment, always secure the cover and
side doors to prevent them from accidentally falling back or closing.
Only refuel the machine when the engine is shut down, do not smoke and avoid
open flames.
Turn the battery master switch to position 0 (off) and remove the ignition key.
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Operating instructions Maintenance
Lubricant and operating fluid specifications
5.5.5 Lubricating grease and other lubricants
Grease Description / manufacturer
Lubricating grease for the The grease must correspond to specification
swing ring / general lube KP2k, consistency 2 or NLGI grade according to
points DIN 51818 and DIN 51825 or EP 2 according to
NF-T-60 132.
The grease must consist of a lithium complex and
have a VKA value of at least 2300 N according to
DIN 51350 and ASTM D 2596.
Contact spray for slip rings Cramolin
Lubricant for pistons, piston Gleitmo 800
nuts and piston bearing in-
stallations on hydraulic cylin-
ders