3-90 BA 50Z3/6003 en – Edition 4.3 * * 5003b340.fm
Operation
Left-hand control lever
Unintentional control lever operation –
Risk of accidents.
☞ Always perform smooth control movements.
Always perform smooth control movements.
Changeover between auxiliary hydraulics and boom swivel
Starting the machine automatically switches on the auxiliary hydraulics.
Switching on boom swivel
☞ Press button A on the control lever.
Switching on auxiliary hydraulics
☞ Release button A on the control lever.
Switching the status indicator on/off for auxiliary hydraulics/boom swivel
Boom swivel switched on
☞ Indicator light 2 in status indicator 52 illuminates permanently.
➥ Auxiliary hydraulics is switched off and the boom can be swivelled.
Auxiliary hydraulics switched on
☞ Indicator light 2 in status indicator 52 is not lit.
➥ The boom cannot be swivelled and the auxiliary hydraulics is now operational.
Fig. 181: Left-hand control lever
D
C
A
B
3
Position Lever Function
A
Forward Extends the stick
B
To the right Rotates the upper carriage to the right
C
Backward Retracts the stick
D
To the left Rotates the upper carriage to the left
Fig. 182: Changeover between auxiliary hydraulics and
boom swivel
A
Fig. 183: Characteristic curves – status indicator (up to
serial no. AH02781)
52
2
Fig. 183: Characteristic curves – status indicator (from
serial no. AJ02777)
52
2