INSTRUMENTS AND CONTROLS 19 - BACKHOE SPEED CONTROL BUTTON This button permits the selection of the oil delivery of the hydrau- lic pump. Whenever restarted, the machine automatically selects the POWER mode (LED on), even if when it stopped the selected mode was ECONOMY. This position makes it possible to use the maximum oil delivery and is indispensable for a correct use of the backhoe. When the button is pressed (LED off), the ECONOMY operation mode is selected. To return to the POWER mode (LED on), press the button again.
The machine passes automatically from the POWER to the ECONOMY operation mode when the forward or the reverse gear are engaged (inverter control lever forward or backward). To return to the POWER operation mode, shift the lever back to the neutral position. POWER 19 20 21 RWA31230 21 20 19 20 - BACKHOE BOOM LOCK SWITCH This switch is used to couple the safety lock with the boom when the backhoe is not used or when travelling. The safety lock is engaged when the switch is off (led off), while its disengagement takes place when the switch is on (led on). (See “3.3.5 pos. 8”).
21 - BACKHOE SLIDING LOCK SWITCH This switch has the function to release the backhoe unit from the sliding guides, in such a way as to make it possible to change the position of the backhoe with respect to the machine. The backhoe unit is generally locked on the guides and the switch is not operated (led off). When pressed, the switch comes on and releases the unit from the guides, thus allowing the backhoe to slide; once the desired position has been reached, press the switch again to lock the backhoe unit (led off). 70