Control and operation

S168 – Key switch / Oil flow limitation when operating a super long working attachment

When using a long reach attachment (super long working attachment with a smaller digging tool), this device allows to limit the working pumps oil flows to a value admissible for all the hydraulic cylinders of the working attachment.

Turn the key switch S168 to the right, in position „1“ to limit the velocity of all the movements of the working attachment.

S200 – Rotary switch / Height adjustable cab - up or down

With an optionally installed height adjustable cab, this switch allows to lift up or to lower down the cab into the desired position, see the section "Height adjustable cab (option)" further in this chapter.

S218 – Touch / Cab roof window wiper

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

S225 – Key switch / Activation of a charge limitation

This function is used for the loading working of a machine. The charge limitation is activated for determinate positions, for example to stop a dangerous movement of the working attachment.

–S225 is in position "0", the charge limitation is not required when the machine is working.

–S225 is in position "1", the charge limitation is required to supervise the machine’s stablility during the work.

Wenn the key switch is in position "1":

•the charge limitation is on,

•the speed of the attachment is automatically reduced,

•the function "pressureless lowering" is off,

•it is not possible to lower the working attachment in case of emergency with the touch S42.

S232 – Control unit / Standstill cab heater

This unit controls an eventually installed standstill heater for the cab or for other circuits on the uppercarriage. Refer to the special issued operation and maintenance manual of the maker of the additional heater.

S248 – Touch / Air bleeding of main control valves

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

S275 – Touch / Additional floodlight on rear of cab roof

This touch switch on and off the additional floodlight.

S276 – Touch / Additional floodlight on counterweight

This touch switch on and off the additional floodlight.

S276 – Touch / Additional floodlight on catwalks and ladders

This touch switch on and off the additional floodlight.

S357 – Touch / Lifting the attachment while the grapple is being closed

With this function, the working attachment is lifted slightly while the grapple is being closed. This reduces the risk of damage to the surface on which the grapple is used. Example: Protection of loading areas, ship bottoms and similar surfaces.

Note! This function is an auxiliary tool designed to assist the machine operator. Even if the function is activated, the surface can still be damaged due to lack of care.

S358

– Push button / Washer for cab roof window

The button turns on the electric cab roof window washer system. Washer fluid will be sprayed to the window and the cab roof window wiper will be actuated as long as the push button S358 is depressed.

3.1.9Display for LIEBHERR particle filter (option)

The particle filter replacing the normal silencer in the exhaust line reduces the hydrocarbon, carbon monoxide and soot particles emissions.

The particle filter regenerates itself if the exhaust temperature is over 250°C, the use of Diesel additive to improve the regeneration is not necessary.

The control unit A175 in the operator ’s cab allows to monitor the particle filter system. The indications of exhaust back-pressure, Diesel engine RPM. and exhaust gas temperature show the charge conditions of the particle filter. Warning signals are optic and acoustic. The operator can thereby react to possible disturbance cases in the filter system and avoid any imminent damage to the filter and to the Diesel engine.