Control and operation

A screen appears with the operating hours and the duration for the ten first and the ten last occurrences of the selected error.

Press the Back key: the first page of the sub-menu appears.

Press the Back key again, to select another error type, or press the Down or Up arrow key, to preselect another error code.

The asterisk "*" shows that the error was also indicated by the buzzer and then acknowledged using the Back key. .

–s*: signals that the duration is given in seconds. –m*: signals that the duration is given in minutes.

Notice!

Only operating faults with an error code E 5xx are displayed in the list Exxx menu.

Press the Back key. The first page of the sub-menu appears.

Press the Down or Up key to select a new error code or press the Back key again to select another error type .

"list E-elec.": Errors of the electrical system

Fig. 3-29 List of the electrical errors

Select "list E-elec."

Press the Menu key: the sub-menu is entered.

The screen displays the list of all electrical errors with their error code.

The “Test” column displays the number of errors which have occurred since the last deletion.

The hour information "reset test at x Hrs" (eg. 12Hrs) indicates the operating hour in which the "Test" column was the last time deleted.

Press the Back key to return to the first page of the sub-menu.

Press the Down key and then the Menu key to confirm the new choice.

"list S-Exxx": Operating faults in service mode

Fig. 3-30 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" - Time setting

Via this menu the clock displayed in the upper right corner of the main screen can be set.

Fig. 3-31 Setting of the clock

After function start, the presently set time will appear in the lower section of the screen with the digit completely right inversely displayed (unity digit of the minutes).

Press the UP or DOWN key to adjust the selected digit.

Press the MENU key: the immediately more left digit is now inversely displayed. Repeat the procedure until all the digits have been set.

Press the Enter key:

3-32 Confirmation of the storage of the new time

The confirmation message “update xx : xx” will appear momentarily on the screen and the new time is stored. The menu "set clock" is closed and the main menu is displayed on the screen.

3.1.7Controls on side control desks

3-33 Switches and control lights on the side control desks

Note: In this section, only the serially mounted controls are mentionned. The functions of the control lights and switches concerning optional mounted special equipments are described in next section.

S41 – Selector switch / Emergency lowering movements

This 3 positions selector switch is installed only on machines equiped with some well defined types of working attachments (industrial attachment, demolition attachment, ...).

On these machines, the switch S41 allows the preselection of the attachment part which will be emergency lowered when actuating the touch S42.

•With the selector switch S41 in position "0" (central), the actuation of the touch S42 will cause the emergency lowering of the boom of the machine.

•With the selector switch S41 in position "1" (to the left), the actuation of the touch S42 will cause the emergency lowering of the industrial stick or of the demolition stick of the machine.

•With the selector switch S41 in position "2" (to the right), the actuation of the touch S42 will cause the emergency lowering of the intermediate on machines with a demolition attachment.

S42 – Touch / Emergency lowering of working attachment

This push button allows to carry out an emergency lowering of the working attachment in case of a malfunction in the servo control circuit.

See the corresponding paragraph under the heading "Emergency operation", further in this chapter.

Note: On machines also fitted with a selector switch S41, the position preselected on S41 determines which is the attachment part to be emergency lowered at actuation of the touch S42.

S84-1 – Touch / Central lubrication of attachment and swing ring roller races

This push button allows to monitor the automatic greasing system as well to release an additional lubrication procedure in the lubrication circuit for working attachment and swing ring roller races.

See the section "Greasing the machine" in chapter Maintenance.

S84-2 – Touch / Central lubrication of swing ring teeth

This push button allows to monitor the automatic greasing system as well to release an additional lubrication procedure in the lubrication circuit for swing ring teeth. See the section "Greasing the machine" in chapter Maintenance.

S218 – Touch / Cab roof window wiper

This touch allows to control the window wiper and the window washer which are mounted in the cab roof.

S248 – Touch / Air bleeding of main control valves

This push button allows to control the bleeding procedure of the air possibly accumulating in the servo control chambers of the main control valves. This bleeding procedure must be performed at regular intervals and also in case of too slow or erratic reactions of the hydraulic cylinders and motors, see the corresponding section in the chapter Maintenance - hydraulic circuit.

3.1.8Controls and instrumentation for optional equipment

The location of the controls may be different, depending on the type of the other installed optional equipments.

H31

Control light / Ladder problem

This control light lights up to indicate that the ladder is not correctly pushed up. The uppercarriage swing movments are blocked.

H90

– Control light / Rotation in opposite direction of reversible fan

On machines fitted with the special equipment "cooler fan reversible", this control light lights up to indicate that the fan has been changed over to rotation in opposite direction via the push button S160, see also the section "Reversible cooler fan (Optional equipment)" in the chapter "maintenance".

S26 – Touch / Fuel preheater

This button turns on the electrical fuel pre heating system, see the section "Starting aids" in this chapter.

S40 – Touch / Frequency commutation for hydraulic hammer

When actuating this touch a pressure signal is send to the reversing hydraulic hammer, causing the hammer to change over to the second cycle frequency.

S41 – Rotary switch / Emergency lowering of attachment parts

For the function of this rotary switch, refer to the heading "Controls on side desks" previously in this manual.

S42 – Touch / Emergency lowering of working attachment

Note :This push button is mounted serially, not as an option, see previous section.

S45 – Touch / Priority for special equipment

If an hydraulic actuator ( cylinder, hydraulic motor, ) of a special equipment requires a constant oil flow, the speed of the remaining attachment movements can be reduced by depressing the push button S45 (control light inside the button must light).

The necessary oil flow for the hydraulic actuator is maintained, even in case of simultaneous actuation of other attachment movements.

S46 – Touch / Lifting magnet operation

This button turns on and off the control circuit for an optionaly mounted lifting magnet, see "Lifting magnet control system (optional equipment)" in this chapter.

S47 – Push button / Quick change adapter

The push button S47 turns on the control circuit for the quick change adapter for the working tool. See also the section "Hydraulic quick change adapter for working tools (optional equipment)" in this chapter.

S53 – Touch / Special control circuit supply

Actuating this touch makes alive an additional control circuit for a special equipment. The green indicator light in the touch lights up to show that the additional servo control circuit is under pressure.

S54 – Key switch / Unlocking of cylinder end position

On some special working attachments, or on attachment showing particular cinematic capacities (as example on industrial attachment), certain movement(s) may be stopped automatically by electrical end switches. The main purpose of this movement limitation is to prevent possible damages due to components frequently reaching their end stops.

See "Cutoff by end switches of attachment movements (option)" in this chapter.

S76 – Touch / Travel parking brake

This touch controls the travel parking brake on the machines fitted with a special undercarriage, or on machines mounted on a loading bridge, a wagon, ... When the red indicator light in the touch lights up, the travel brake is applied. On machines with a standard undercarriage, the travel brakes are controlled directly via the travel pedals and the touch S76 does not exist.

S77 – Touch / Pressurized driver's cab

When the touch is depressed, the green indicator light in the touch lights up and an air fan is started to maintain a slight pressurization inside the driver's cab. The entering of dust or not filtered air into the cab is then almost prevented.

S78 - Push button / Height adjustable cab - emergency down

See the section "Height and inclination adjustable cab (optional equipment)" in this chapter.

S79 – Touch / Flow divider for special attachment

Should a certain user (cylinder, hydraulic motor, ...) has to be fed with a constant oil flow during the actuation of a special attachment, so the necessary oil flow can be reserved to give priority to this user while depressing the touch S79.The indicator light in the touch is then lighting up. The velocity of the other simultaneously actuated working movements is correspondingly reduced.

S84-1 – Touch / Central lubrication of attachment and swing ring roller races

Note :This push button is mounted serially, not as an option, see previous section.

S84-2 – Touch / Central lubrication of swing ring teeth

Note :This push button is mounted serially, not as an option, see previous section.

S90 –Potentiometer / Intermittent mode of the cab roof window wiper

The pause time of the intermittent mode of the cab roof window wiper can be adjusted by turning this button. (The window wiper is switched on and off using the touch S218).

S98 – Touch / Low pressure protection for boom cylinders

If the touch S98 is actuated, the pressure protection value for lowering the attachment (circuit for retraction of the boom cylinders) is reduced, so to limit the possible downward thrust exerted by the working attachment onto the materials to be dug out.

This safety device must be turned on, as an example, when unloading a boat or a barge, so to avoid damage to its bottom.

S104 – Touch / Hydraulic width adjustment of undercarriage

On excavators fitted with an undercarriage with adjustable track gauge, this button activate the circuit which controls the adjustment of the undercarriage width.

S114 – Key switch / Control of a special attachments with the joysticks

Thanks to this switch, the operator can control the movement of the additional user of an add on kit AHS either using the double pedal destined for this purpose (key switch in position "pedal")., or via the right joystick (key switch in position "joystick"). See also "Commutation of the control for the user of add on kit AHS" in this chapter.

S121 – Touch / Float position of working attachment on pontoon excavator

Via the touch S121 the function "float position of working attachment" can be turned on and off if the pontoon operation of the machine has been previously preselected via the rotary switch S123.

When the float position is turned on, the indicator light in the touch S121 is on and the working attachment can move up and down freely to compensate the differences in water level for example during tides or between locks, when the digging bucket is left on an embankment or a wharf.

S122 - S154 –

Touch / Operation of the air compressor

Via the key S122, the compressed air compressor installed as an optiont is turned on and switched off. The stick is being pressurized.

S123 – Key switch / Excavator operation - Pontoon operation

The key switch S123 is installed on excavators mounted on undercarriage and which are used on a ship or a barge as pontoon excavator. When the machine is used in normal operation (when it is no longer operated in pontoon operation), the key switch S123 must be turned in position0. When the machine is used as a pontoon excavator, the key switch S123 must be turned in position1.

S125

– Touch / Deactivation of the travel motions

When depressing this touch, the indicator light in the touch is turned on and the travel movements are deactivated. This means that the travel drive will no longer be actuated when the travel pedals are depressed. This touch must be turned on each time when it is essential that any unintentional movement of the track chains is avoided, as an example when operating an excavator with undercarriage on a pontoon.

S157 – Touch / Flow reduction for special tools

When operating a specific user (smaller grapple or bucket, ..), having a maximum admissible oil flow sweepingly below the delivery of the working pumps, the touch S157 must be actuated so to adapt the oil flow of one or several pumps to the specific user.

S160 – Push button / Control of reversible fan in opposite direction

On machines fitted with the special equipment "cooler fan reversible", the direction of revolution of the cooler fan can be inverted while actuating the push button S160. In some particular working conditions, this inversion of the direction of the fan rotation allows an easy cleaning of the radiator core and of suction area of the fan.

See also the section "Reversible cooler fan (Optional equipment)" in the chapter "maintenance".