Kubota KX015-4 Operating Instructions

Operation

Safety rules for operation

  • The safety instructions (see following section) must be followed.
  • The excavator may only be operated according to its approved use.
  • The excavator may only be operated by trained personnel.
  • Do not operate the excavator when under the influence of drugs, medication or alcohol. Stop operation when getting tired. The operator must be physically capable of operating the excavator safely.
  • The excavator should only be operated if all protective devices are fully operational.
  • Before starting or working with the excavator, make sure that there is no danger for any person nearby.
  • Before starting the excavator, it must be checked for external damage and operability, and the pre-start checks must be carried out. If defects are detected, the excavator should only be taken into operation after the defects have been repaired.
  • Wear tightly fitting working clothes in accordance with the trade association regulations.
  • During the operation of the excavator, nobody except for the operator is allowed to be inside the cab or get on the excavator.
  • For getting on or off, the swivel frame should be positioned  in an angle which allows the operator to use the crawler or the step (if applicable) to enter the cab.
  • Always stop the engine when leaving the cab. In exceptional cases, e.g. for troubleshooting, the cab can also be left with the engine running. The operator must make sure that the left control console remains in an upright position. The controls may only be used while the operator is sitting on the operator’s seat.
  • During operation, it is forbidden to stretch any part of the body out of the window or cab door, such as arms, legs, or the body.
  • If the operator leaves the excavator (e.g. for breaks or at the end of work), the engine must be stopped and the excavator must be secured against restarting by removing the key. The cab door must be locked. Before leaving the excavator, park the machine so that it can not move.
  • Whenever work is interrupted, the bucket must always be lowered to the ground.
  • Do not allow the engine to run indoors, unless the room is equipped with an exhaust gas extraction system or otherwise well ventilated. The exhaust gas contains carbon monoxide, a colourless, odourless, and lethal gas.
  • Never crawl under the excavator before the engine is stopped, the key is removed and the excavator is secured against moving.
  • Never crawl under the excavator if it is only raised with the bucket or the dozer. Always use suitable supports.

Safety for children

A stop logo indicating important informationChildren are normally attracted to machines and their normal operation. If children are in the vicinity of the machine and are not at a suitable distance and in the field of vision of the operator, this can lead to serious accidents or even death of the children.

Always observe the following rules of conduct:

  • Never assume that children will remain where you last saw them.
  • Keep children far away from the working area and always under the supervision of other responsible adults.
  • Be vigilant and switch the machine off when children enter the working area.
  • Never let children drive with you on your machine, there is no safe place for passengers. Children could fall off the machine and be run over or affect the control of the machine.
  • Children must never operate the machine, even under supervision of an adult.
  • Never let children play on the machine or attachments.
  • Be particularly careful when manoeuvring. Look behind and down below on the machine and ensure that there are no children in the manoeuvring area.
  • Before leaving the machine, park it so that it cannot move. When leaving the machine (e.g. for breaks or at the end of work), stop the engine, remove the key and close the cab door, if present.

Guiding the operator

  • If the operator’s working and driving area is obscured, the operator must be supported by a guide.
  • The guide must be capable of performing this kind of work.
  • Before starting work, the guide and the operator must agree the necessary signals.
  • The guide’s position must be clearly visible by the operator.
  • The operator must stop the excavator immediately if the eye contact to the guide is interrupted. –> As a rule, either the excavator or the guide may move, never both at once!

Working in the vicinity of overhead power lines

When working with the excavator in the vicinity of overhead power lines and tram lines, a minimum distance as specified in the following table must be maintained between the excavator and its attachments and the power line.

Rated voltage [V] Safe distance [m]
  up to 1 kV 1.0 m
over 1 kV up to 110 kV 3.0 m
over 110 kV up to 220 kV 4.0 m
over 22o kV up to 380 kV or when rated voltage is unknown 5.0 m

If safe distances can not be maintained, the power lines must be switched off in coordination with their owner or provider and secured against making them live again.

When approaching overhead power lines, any possible movements of the excavator must be taken into consideration.

Unevenness of the ground or sloping the excavator can reduce the safe distance.

Wind can cause the overhead power lines to sway, thus reducing the safe distance.

In case of power cross-over, leave the danger zone with the excavator, if possible, by taking suitable measures. If this is not possible, do not leave the operator’s place, warn any approaching persons of the danger, and have the power switched off.

Working in the vicinity of underground power lines

Before starting with excavation work, the owner of the excavator or the person responsible for the work must check if there are any underground power lines in the proposed working area.

If there are underground power lines present, the position and routing of the power lines must be determined together with the owners or operators and the required safety measures must be determined.

If power lines are encountered or accidentally damaged, the operator must stop working immediately and inform the responsible person.

Check the fuel level

Figure showing the fuel gauge

Figure showing the fuel gauge

Image of a pointer indicating an important instructionThe fuel gauge (1 – figure to the right) indicates the relative fuel amount in the tank. The less fuel is left in the tank, the lower the dial of the gauge.

  • Turn the starter switch to the RUN position.
  • Check fuel situation by looking at the fuel gauge on the display and control unit.
  • Refuel excavator if there is too little fuel left – see the section on refuelling.

Check the fluid level of the washer system (cab version)

Position of the washer system's reservoir

Position of the washer system’s reservoir

Image of a pointer indicating an important instructionDo not operate the washer system if its reservoir (1 – in the figure to the right) is empty as running dry could damage the pump.

  • Check whether the liquid reservoir is full enough.

If the filling volume is too low, fill washer system reservoir.

Setting up the workplace

For excavation work with a cab, please consider section titled Opening and closing the cab door.

Getting on the excavator

A stop logo indicating important informationRisk of injury when entering or leaving the machine!

When entering or leaving the machine without a secure halt, you can slip and fall down.

  • Do not jump up or down on the excavator.
  • Always hold fast with one hand at the hand rail.
  • Pay attention to a safe step.
Diagram of the operator's place showing the left control console

Diagram of the operator’s place showing the left control console

  • Move the left control console (2 – figure right) up as far as possible by pulling the control lever lock (1 – figure right) up.

Image of a pointer indicating an important instructionThe control console must remain in this position until the engine is started, as the engine can only be started in this position.

  • Get into the excavator, use the chain as a stepping aid.
  • Sit down on the operator’s seat.

Adjusting the operator’s seat (KX015-4/KX016-4)

Image of a pointer indicating an important instructionAdjust the operator’s seat so that fatigue-free and comfortable working is possible. It should be possible to operate all controls safely.

Horizontal seat adjustment (seat stand-off)

Pull the horizontal seat adjustment lever (4 – figure below right) up and move the seat to the desired position by moving it forward or back, then release the lever.

A stop logo indicating important informationCheck that the seat is locked into place.

Figure showing the controls to adjust the seat

Figure showing the controls to adjust the seat

Spring seat adjustment (operator’s weight)

  • The seat can be set to the weight of the operator using the toggle (figure to the right, position/2). Refer to the weight indicator (figure to the right, position/1) when choosing your setting.
  • Depressing the lever increases spring tension (heavier operator), and pulling up the lever reduces spring tension (lighter operator).
  • Adjust the seat so that a comfortable cushioning is achieved.

Backrest adjustment

  • Take the load off the backrest and pull up the backrest adjustment lever (figure above right, position/3). Set the backrest to the desired sitting position and release the lever. The backrest should be adjusted so that the operator can safely operate the control levers with the back resting completely on the backrest.

Spring adjustment (operator’s weight)

  • The seat can be set to the weight of the operator using the toggle (figure above right, position/3). Refer to the weight indicator (figure above right, position/2) when choosing your setting.
  • Sit down on the operator’s seat.
  • Swivel the toggle outwards by 90°.
  • Pumping up and/or down, change the spring tension until the weight indicator shows your own weight.

Image of a pointer indicating an important instructionAdjust the seat so that the arrow points to the centre of the weight indicator.

Backrest adjustment

Take the load off the backrest and pull up the backrest adjustment lever (figure above right, position/1). Set the backrest to the desired sitting position and release the lever. The backrest should be adjusted so that the operator can safely operate the control levers with the back resting completely on the backrest.

Seat belt

  • Buckle up.
  • Check that the seat belt is fastened tightly.

A stop logo indicating important informationDo not operate the excavator without the seat belt fastened.

Rear view mirrors adjustment

  • Check the adjustment of the rear view mirrors. If necessary, adjust the mirrors until the optimum sight is ensured.

Safety instructions for starting the engine

Image of a pointer indicating an important instructionThe excavator is equipped with an anti-theft system – see section.

Image of a pointer indicating an important instructionWhen starting the excavator for the first time on a work day, carry out the pre-operational services – (see ‘Checking the fuel level’ section).

A stop logo indicating important informationThe safety rules for operation (see section above) are to be observed absolutely!

A stop logo indicating important informationMake sure that there are no persons within the excavator’s working area. It is essential to warn persons in the vicinity of the excavator by briefly honking the horn.

A stop logo indicating important informationMake sure that all operational controls are in the neutral position.

A stop logo indicating important informationStarting the excavator is only allowed when the operator is sitting on the operator’s seat.

Image of a pointer indicating an important instructionBefore starting the engine, make the necessary operator station adjustments (see section above)

An alert sign logo indicating important informationIf the engine does not start immediately, cease the starting procedure. Wait a short time before reattempting a start. If the engine does not start after several attempts, contact skilled personnel. If the battery is discharged, jump start the excavator.

An alert sign logo indicating important informationDo not use Start Pilot or similar substances as a starting aid.

Starting the engine

Figure showing the position of the throttle lever and starter switch when starting the excavator

Figure showing the position of the throttle lever and starter switch when starting the excavator

  • Push throttle lever (1 – in the figure to the right) in the following direction A small icon of a tortoise .
  • Insert the key into the starter switch (2 – figure to the right) and turn it to the RUN position.

Image of a pointer indicating an important instructionThe excavator is equipped with an anti-theft system. If the excavator is started with a wrong key, the indicator “Pull out key” (figure below right, 6) lights up on the display and control unit.

Image of a pointer indicating an important instructionIf the bunch of keys contain metal parts, such as key rings or other keys, the engine might fail to start.

If the control lever lock is not raised, the warning light (5 – figure below right) shines yellow, the engine cannot be started.

The indicator Pre-glowing (1 – figure below right) lights up briefly. The engine can be started after it goes off.

The engine oil pressure indicator (3 – figure right) lights up and goes out after the engine has been started.

Figure detailing the various indicators that light up when the starter switch is in the RUN position

Figure detailing the various indicators that light up when the starter switch is in the RUN position

The charge indicator (4 – figure right) lights up and goes out after the engine has been started.

If the indicators do not light up when the starter switch is in the RUN position, remove the key and contact suitable qualified personnel.

If the fuel reserve indicator (2 – figure right) blinks yellow, there is only a little fuel left in the tank, refuel excavator – see the refuelling section.

  • Turn the starter switch to the START position and hold it there until the engine has started. Release the starter switch.
  • Lower the left control console and make sure that the control lever lock engages.
  • Let the engine run at middle speed until the operating temperature has been reached.

After the engine has reached its operating temperature, set the engine speed required for operation:

  • Pull throttle lever in the direction of A small icon of a hare until the required revolutions per minute have been reached.

The display selector switch (1 – figure below left) allows you to change between the indication of time, engine speed or hours of operation in the display (2 – figure below left).

The time (1 – figure above right) indicates the current time of day in hours and minutes.

The speed indicator display indication (2 – figure above right) indicates the current engine speed.

The hour of operation indicator (3 – figure above right) indicates the hours of operation of the excavator performed up to now, regardless of the engine speed.

Check the displays and indicators during operation – see section below.

Stopping the engine

Image of a pointer indicating an important instructionIf the engine is to be stopped to take the excavator out of operation, the services for placing the excavator out of operation (see ‘Placing out of operation’ section) must be carried out.

  • Turn the starter switch to the STOP position and remove the key.

Observation of the displays after starting and during operation

Figure showing the display indicators during operation

Figure showing the display indicators during operation

The operator must observe the display indicators and displays after starting and during operation.

An alert sign logo indicating important informationThe warning light (1 – figure right) flashes red when a system fault or technical malfunction occurs. Stop the engine immediately! The warning light flashes yellow when the system issues a warning. Additionally, the display may show an error as in the figure to the right.

Image of a pointer indicating an important instructionClear the messages by taking appropriate steps or contact qualified personnel if necessary.

If the engine oil pressure becomes too low during operation, the engine must be stopped immediately. The engine oil pressure indicator (1 – figure below left) lights up, the warning light (2 – figure below left) flashes red and the display message as in the figure below left appears.

If a fault occurs in the charging system during operation, the engine must be stopped immediately. The charge indicator (1 – above right) lights up, the warning light (2 – above right) flashes red and the display message as in the figure above right appears.

Figure showing the coolant temperature gauge

Figure showing the coolant temperature gauge

The needle of the coolant temperature gauge (1 – figure right) should be in the area between “C” (COOL) and “H” (WARM). If the needle rises up to range “H” (Red), cool down the engine by changing into idle.

Image of a pointer indicating an important instructionAllow the machine to idle for five minutes before switching off the engine!

  • Check the level of the coolant in the expansion tank.

A stop logo indicating important informationDo not open the radiator cap: risk of scalding.

  • Check the cooling system for leaks; if necessary, contact skilled personnel.
  • Check if the V-belt is very loose or broken, if necessary, contact skilled personnel.
  • Check if the air intake in the side panel, the radiator, and the oil cooler are very dirty. If necessary clean the radiator.

When the machine is being operated at or close to full capacity, the temperature of the coolant can rise a little higher than normal. The indicator Coolant temperature (1, figure below left) blinks and the message appears in the display as shown in the figure below left.

The message fades out after a short time and the indicator Coolant temperature blinks as long as the temperature remains elevated.

Operate the machine only with reduced loads until the operating temperature is normal again.

If the coolant temperature is too high, cool down the engine by changing into idle. The display message as in the figure above right appears.

Image of a pointer indicating an important instructionAllow the machine to idle for five minutes before switching off the engine!

  • Check the level of the coolant in the expansion tank.

A stop logo indicating important informationDo not open the radiator cap: risk of scalding.

  • Check the cooling system for leaks; if necessary, contact skilled personnel.
  • Check if the V-belt is very loose or broken, if necessary, contact skilled personnel.
  • Check if the air intake in the side panel, the radiator, and the oil cooler are very dirty. If necessary clean the radiator.
  • Watch the fuel gauge (1 – figure right).
Figure showing the fuel gauge

Figure showing the fuel gauge

Image of a pointer indicating an important instructionThe needle indicates the relative fuel amount in the tank. As fuel is used up during operation, the needle slowly descends.

When the fuel tank is full, the needle points to the top (A, figure right).

When the fuel tank is empty, the needle points to the bottom (B, figure right).

When the fuel reserve indicator (2 – figure right) is lit, there is only a little left in the tank, refuel the excavator – see the refuelling section.

Image of a pointer indicating an important instructionWhen operating the excavator on a slope, the fuel is displaced to one side of the fuel tank. In this situation, when the fuel level is low, the fuel pump may not deliver enough fuel, causing the engine to stall. The machine must be refuelled and the fuel system bled.

Image of a pointer indicating an important instructionWhen the fuel tank is empty, the machine cannot be operated. The machine must be refuelled and the fuel system bled.

Also stop the engine immediately if

  • the engine speed rises or drops suddenly,
  • abnormal noises are heard,
  • the excavating devices do not respond to the control lever as expected or
  • the exhaust fumes are black or white. When the engine is still cold, white smoke for a short time is normal.

Driving the excavator

Image of a pointer indicating an important instructionEnsure that the boom and the dozer blade are in the direction of travel as shown in the figure below left.

A stop logo indicating important informationWhen driving with the excavator, always observe the following safety instructions.

When working on slopes, observe the tilt of the excavator (see figure above right).

Climbing performance: 27 % resp. 15°

Max. lateral sway: 18 % resp. 10°

Figure showing the height of the bucket when driving

Figure showing the height of the bucket when driving

  • Keep the bucket as low as possible when driving.
  • Check the ground for stability, and verify if there are any holes or other potential obstacles.
  • Approach overhangs and edges of ditches carefully as they could cave in.
  • Drive slowly downhill, do not allow the vehicle speed to increase uncontrollably.
  • Close the cab door (cab version).
  • When driving, the bucket should be approx. 200 to 400 mm (A) above the ground (see figure to the right).
  • Raise the dozer blade to the top position.
  • Select an appropriate engine speed.

Driving

  • Push both drive levers forward simultaneously to drive the excavator straight ahead. Releasing the drive levers stops the excavator immediately.
    To reverse the excavator, pull both drive levers back simultaneously.

(A) Forward
(B) Reverse
(C) Straight ahead

A stop logo indicating important informationIf the dozer is not at the front, as shown in the figure below left, but at the rear, the operation of the drive levers is exactly opposite. Drive lever forwards: The excavator backs up.

  • To drive faster, press the travel speed button (1 – figure above right).
Figure showing the travel speed indicator

Figure showing the travel speed indicator

A tone sounds and the indicator (1 – figure right) shines. Renewed operating of the push button travel speed switches back to normal speed. Besides, audible signal sounds and the indicator goes out.

A stop logo indicating important informationDo not drive fast on muddy or uneven terrain, also if another control is operated (e.g. turning the swivel frame).

Turning

A stop logo indicating important informationTurns are described for the forward direction of travel with the dozer at the front. If the dozer is positioned at the rear, the steering movements should be in the opposite direction.

A stop logo indicating important informationWhen making turns, be sure nobody is standing within the swing area of the excavator.

During driving

  • Pull the left drive lever to neutral, leave the right drive lever pushed forward.

(A – figure below left) The excavator makes a left turn.

From a standing position

  • Leave the right drive lever in neutral, push the left drive lever forward. In this case, the turning radius is determined by the right track.

(A – figure above right) The excavator makes a right turn.

Figure showing the position of the drive levers in order to turn the excavator on the spot

Figure showing the position of the drive levers in order to turn the excavator on the spot

Turning on the spot

A stop logo indicating important informationDo not make a turn on the spot with the travel speed button actuated.

  • Move the drive levers in opposite directions. The tracks will turn in opposite directions. The centre of the vehicle is its vertical axis.

(A) Turing on the spot to the right.

Driving uphill and downhill

A stop logo indicating important informationExercise extreme caution when driving up and down a slope. Do not use the travel speed button.

  • When driving on gradients, raise the bucket approx. 200 to 400 mm (A) above the ground (see figure below left).
  • When driving on gradients, let the bucket slide over the ground if the terrain allows it.
Figure demonstrating rubber crawler operation

Figure demonstrating rubber crawler operation

Notes for rubber crawler operation

  • Driving or turning on sharp objects or over steps causes excessive wear on the rubber crawlers and will lead to breaking of the rubber crawler or cause the crawler running surface and the steel inserts to be cut.
  • Make sure that no foreign objects get stuck in the rubber crawler. Foreign objects lead to excessive wear and can cause it to break.
  • Keep oil products away from the rubber crawlers.
  • Remove any fuel or hydraulic oil spilled on the rubber crawlers.

Making sharp turns

  • On streets with a high-friction tarmac, e.g. concrete, do not make sharp turns.

Protecting the crawler against salt

  • Do not work with the machine on the seashore. (The salt will cause the steel insert to corrode.)

Operating the controls during excavation work

A stop logo indicating important informationAlways observe the following safety instructions when working with the excavator.

  • Never crush concrete or boulders using side boom swings with the bucket.
  • Do not use the dropping action of the bucket for excavation.
  • Never fully extend the cylinders. Always keep a certain safety margin, especially when operating with a breaker (accessory).
  • Never use the bucket as a hammer to drive posts into the ground.
  • Do not drive or dig with the bucket teeth rammed into the ground.
  • When loading soil, do not dig the bucket deeply into the ground. Instead, make relatively shallow slices with the bucket out as far as possible. This technique reduces the stress on the bucket.
  • When working in water, the water should only reach up the lower edge of the swivel frame.
  • After using the machine in water, always grease the pins at the bucket and arm with grease until the old lubricating grease emerges.
  • When digging in reverse direction, pay attention that the boom does not get into contact with the dozer.
  • It is forbidden to use the excavator for lifting operations, unless it is equipped with a pipe valve for crane operation (accessories) according to EN 474-5.
  • Adhering soil can be shaken off when the bucket is being emptied by moving the cylinder to the end of the stroke. Should this not suffice, dump the arm as far as possible and operate the bucket back and forth.
  • When excavating, always lower the dozer completely onto the ground.
Figure showing a large bucket hitting the excavator's cab

Figure showing a large bucket hitting the excavator’s cab

Note on using wider and deeper buckets

An alert sign logo indicating important informationWhen using a wider or deeper bucket, take good care when swinging or retracting the front attachments to make sure that the bucket does not hit the cab.

Operating the dozer

Image of a pointer indicating an important instructionWhen working with the dozer, operate both drive levers with the left hand and the dozer control lever with the right hand.

  • To lift the dozer, pull the dozer control lever (1 – figure below left) back.
  • To lower the dozer, push the dozer control lever forward.

(A – below right) Dozer up.

(B – below right) Dozer down.

Figure showing the functions of the left and right control levers

Figure showing the functions of the left and right control levers

Overview of the control lever functions

The figure shows, in connection with the following table, the functions of the left and right control levers.

Control lever   Movement
Right control lever 1 Lower boom
2 Raise boom
3 Bucket crowd
4 Bucket dump
Left control lever A Arm crowd
B Arm dump
C Swivel frame to the left
D Swivel frame to the right

Operating the boom

If the excavator is overloaded, the boom must be lowered until the load rests on the ground. To prevent personal injuries and damage to equipment, do not operate any other functions (e.g. moving the swivel frame).

  • To raise the boom, pull the right control lever back (the down arrow: ↓ in the figure below left).

Image of a pointer indicating an important instructionThe hydraulic cylinder of the boom is equipped with a cushioning function, which prevents the excavated material in the bucket from falling out. When the hydraulic system operating temperature is low, the cushioning is delayed for approx. 3 to 5 s. This delay is due to the viscosity of the hydraulic oil and is not a malfunction.

  • To lower the boom, push the right control lever forward (the up arrow: ↑ in the figure above left)

An alert sign logo indicating important informationWatch the boom during lowering, so that the boom or the bucket teeth do not hit the dozer.

The boom moves as shown in the figure above right.

Operating the arm

  • To dump the arm, push the left control lever forward (the up arrow: ↑ in the figure below left).
  • To crowd the arm, pull the left control lever back (the down arrow: ↓ in the figure below left).

The arm moves as shown in the figure below right.

Operating the bucket

  • To crowd (digging) the bucket, move the right control lever to the left (left arrow: ← in the figure below left).
  • To dump (empty) the bucket, move the right control lever to the right (right arrow: → in the figure below left).

An alert sign logo indicating important informationWhen crowding the bucket, take care that the teeth do not hit the dozer.

The bucket moves as shown in the figure below right.

Swivelling the swivel frame

A stop logo indicating important informationNo person is allowed to stand in the swivel area during the movement.

An alert sign logo indicating important informationSwivel carefully to avoid any contact of the front attachments with adjacent objects.

  • To turn anticlockwise, move the left control lever to the left (right arrow: → in the figure below left).
  • To turn clockwise, move the left control lever to the right (left arrow: ← in the figure below left).

The turning operation takes place as shown in the figure below right.

Swinging the boom

Figure detailing the swing movement of the excavator's boom

Figure detailing the swing movement of the excavator’s boom

A stop logo indicating important informationNo person is allowed to stand in the swing area during the movement.

An alert sign logo indicating important informationSwing carefully to avoid any contact of the front attachments with adjacent objects.

  • To swing the boom counter-clockwise, press the boom swing pedal on the left-hand side (left arrow: ← in the figure to the right).
  • To swing the boom clockwise, press the boom swing pedal on the right-hand side (right arrow: → in the figure to the right).

The figure to the right details the swing movement.

Image of a pointer indicating an important instructionThe boom swing control pedal can be secured against inadvertent operation by lowering the locking flap. Fold the locking flap when the boom swing pedal is not in use.

Operating the auxiliary port (KX015-4/KX016-4/KX018-4)

The auxiliary port serves for operating attachments.

A stop logo indicating important informationOnly implements approved by KUBOTA may be used. The implements must be operated in accordance with the operating instructions supplied by them.

A stop logo indicating important informationWith the use of a breaker or another attachment for demolition work, where material (e.g. asphalt) is removed and can uncontrollably sputter away, personal protective equipment is absolutely to be worn (safety shoes, safety helmet, eye protection, ear protection and if necessary facial mask). The use of a gravel guard (front protective grid) is recommended. For excavation work with a cab, the front window must be closed, in addition. For demolition (according to EN 474-1, Annex G), e.g. tearing down walls, the corresponding protective equipment is required (e.g. gravel guard).

A stop logo indicating important informationMake sure that, before carrying out the activities in the auxiliary port connectors, the pressure relief of the hydraulic equipment (link to section) and the auxiliary port connectors (link to section) has been carried out. Depending on the operation setting, the return change valve has to be set to the appropriate position.

An alert sign logo indicating important informationThe auxiliary ports may only be activated when an implement is attached.

Image of a pointer indicating an important instructionIf the auxiliary port has not been used for a longer time, dirt particles could have accumulated at the connectors of the conduit. Before installing the implement drain approx. 0.1 L of hydraulic oil at each port.

Spilled fuel iconCatch the drained hydraulic oil in a container and discard it in accordance with the valid environmental regulations.

Figure showing the auxiliary port pedal

Figure showing the auxiliary port pedal

  • Start the engine (see section above) and keep it at idle speed until the operating temperature has been reached.

Image of a pointer indicating an important instructionThe auxiliary port pedal (1 – in figure to the right) can be protected against unintentional operating by turning the locking flap (2 – in figure to the right). If the auxiliary port pedal is not used, the locking flap must be folded in.

  • When operating the right pedal part (down arrow: ↓ in the figure to the right) there is an oil flow at the connector (label 1 in the figure to the right).
  • When operating the left pedal part (bold down arrow: ↓ in the figure to the right) there is an oil flow at the connector (label 2 in the figure to the right).

Activating the auxiliary port function

Figure showing how to activate the auxiliary port function

Figure showing how to activate the auxiliary port function

The auxiliary port is used for hydraulic implements, such as a breaker. You can set the flow rate prior to operating auxiliary port. Refer to the section for the flow rate setting (see section below) for details.

Switch on the auxiliary port using the auxiliary port enable switch (1 – in the figure to the right). This switch is active when the left control console is lowered and the starter switch is in the RUN position. When the auxiliary port is switched on, the indicator Auxiliary port (2 – figure to the right) comes on or flashes.

Using this switch, you can also set the operation settings.

Image of a pointer indicating an important instructionThe proportional control enables you to smoothly control the implement speed. Example: If you move the rocker switch half a turn to the left, the implement moves at half speed.

Figure showing the auxiliary port rocker switch

Figure showing the auxiliary port rocker switch

  • Move the auxiliary port (1 – in the figure to the right) rocker switch in direction (A – in the figure to the right). The oil will flow towards connector (A – in the figure to the right) on the right side of the arm.
  • Move the auxiliary port (1 – in the figure to the right) rocker switch in direction (B – in the figure to the right). The oil will flow towards connector (B – in the figure to the right) on the left side of the arm.

One way hold operation

Image of a pointer indicating an important instructionFor one way hold operation, the return change valve has to be set to the direct return flow position.

  • Activate the operation setting for “one way flow”.

Switching on

  • Briefly press the one way hold switch (1 – in the figure below right), the oil flows unilaterally to the auxiliary port connectors (B) on the left side of the arm.
Figure showing how to activate the operation setting for the "one way flow"

Figure showing how to activate the operation setting for the “one way flow”

Switching off

  • Briefly press the one way hold switch to switch off the oil flow, or
  • press the rocker switch for auxiliary port 2 (3) briefly to the right or left to stop the oil flow.

Operating modes

The auxiliary port connector is preset at the factory, enabling four operating modes to be selected. Up to six operating modes can be preset.

Whenever the auxiliary port button is pressed the service mode changes by one level.

Image of a pointer indicating an important instructionWhen the starter switch is turned to the RUN position the most-recently used setting is activated.

Select the mode of operation

Figure showing the modes of operation for the auxiliary port connector

If the auxiliary port is switched on and a mode of operation has been selected, the set flow rate in the right auxiliary port connector and then in the left auxiliary port connector is indicated for a few seconds in the display (2 – in the figure below left) by pressing the display selector switch (1 – in the figure below left).

(All references are to the figure above right.)

A: Selected mode of operation

B: Right auxiliary port connector

C: Selected flow rate level

D: Left auxiliary port connector

After the indication of the flow rates the selected mode of operation in indicated in the display once more.

Flow rate setting

Suppose the same implement has to be attached to a different excavator. Even when using identical flow rate settings for the excavator, the working speed may differ. For each excavator, you need to individually adjust the flow rate settings. Upon changing the implement, you need to determine and adjust the optimum flow rates for the new implement.

An alert sign logo indicating important informationThe flow at auxiliary port 1 is not constant when using a different function or if a relief valve is responding.

Image of a pointer indicating an important instructionIt is recommended to adjust this setting during the operation of the implement.

  • Turn the starter switch to the RUN position.
  • Press menu button (2 – as in the figure below left).
  • The display message as in the figure below left appears.
  • Press display selector switch (1 – in the figure below left) until AUX is shown in the display.
  • To toggle between the operating modes, press and hold the display selector switch (1) again.
  • Press the display selector switch (1) repeatedly until the desired indicator appears in the display.
  • Press and hold the display selector switch until the selected operating mode’s flow rate is shown on the display.

When the selected flow rate is shown on the display, you can use the display selector switch (1 – figure below left) and the menu button (2 – figure below left) to increase or decrease the flow rate.

  • Press the menu button (2 – figure above right) to decrease the flow rate.
  • Press the display selector switch (1 – figure above right) to increase the flow rate.
Figure showing the display selector switch being pressed until the flow rate setting changes to left AUX port

Figure showing the display selector switch being pressed until the flow rate setting changes to left AUX port

The flow rate can be increased or decreased in 14 steps.

→ At the highest step, the flow rate reaches its maximum level.

→ If the flow rate is at the lowest level, flow is blocked and there is no oil flow.

  • Press and hold the display selector switch (1 – in the figure to the right) until the flow rate setting changes to left AUX port.

Image of a pointer indicating an important instructionYou can switch continuously between the left and right AUX port flow rate settings.

After setting the flow rate or the operating mode selected, you can either switch to the next operating mode or exit the settings screen.

To change the operating mode:

Figure showing how to switch to the next operating mode

Figure showing how to switch to the next operating mode

  • To toggle between the operating modes, press and hold the menu button (2 – in the figure to the right).
  • Press the display selector switch (1 – in the figure to the right) to select the next operating mode.
  • Set the flow rate for the next operating mode selected.

To finish the flow rate setting:

  • To toggle between the operating modes, press and hold the menu button (2 – in the figure to the right).
  • Press and hold the display selector switch (1 – in the figure to the right) to finish the flow rate setting.
  • Press the menu button (2 – in the figure to the right) again to return to the normal display screen.

Placing out of operation

A stop logo indicating important informationPark the excavator in such a way that it can not move and is secured against unauthorised use.

  • Drive the excavator onto level ground.
  • Extend the hydraulic cylinders as follows:
    Boom: Half-extended
    Arm: Half-extended
    Bucket: Half-extended
    Dozer: Lowered to the ground
    Swing mechanism: Front attachments lowered centrally to the ground
  • Stop the engine (see section above).
  • Remove the key.
  • Unbuckle the seat belt and lift the left control console.
  • Refuel the excavator, if necessary (see the refuelling section).
  • Close and lock the cab door. The key must remain with the operator.
  • Check the excavator for external damage and for leaks. Any defects must be repaired before the next start.
  • In case of a heavy accumulation of dirt in the area of the tracks and the hinges at the front attachments, clean the excavator.

Refuelling the excavator

No smoking alert iconWhen refuelling the excavator, smoking, an open flame, or other sources of ignition are not allowed. The danger zone has to be clearly marked with signs. A fire extinguisher must be kept at hand in the danger zone.

Spilled fuel iconSpilled fuel must be bound immediately with an oil binding agent. The contaminated oil binding agent must be disposed of in accordance with the applicable environmental regulations.

A stop logo indicating important informationIf no pumping station is available, the diesel may only be stored in approved canisters.

An alert sign logo indicating important informationRefuel the excavator in time so that the fuel tank is not running empty. Air in the fuel system can damage the fuel injection pump.

  • Stop the engine.
  • Insert the ignition key in the lock (1 – in the figure below left) of the filler cap (2 – in the figure below left) and turn it anti-clockwise.
  • Open the filler cap by turning anti-clockwise.
  • Insert filler funnel (1 – in the figure above right) in filler neck (2 – in the figure above right) start and turn clockwise, until the funnel engages.
  • Fill diesel fuel up to the base of the filler neck.
  • Screw on the fuel cap and turn the ignition key clockwise to lock the fuel cap.
Figure showing the indicator light for the anti-theft system

Figure showing the indicator light for the anti-theft system

Anti-theft system

The excavator is equipped with an anti-theft system that restricts the engine to be started using a registered key only. If a registered key gets lost or stolen, you can invalidate it. This will prevent the engine from being started with this key, thus protecting the vehicle against theft. The anti-theft system makes it difficult to steal the machine. However, it can not fully prevent theft.

If the starter switch is set to STOP, the indicator light (1 – in the figure to the right) is illuminated, indicating the activation of the anti-theft system.

Make sure that the indicator light is illuminated when leaving the machine.

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