OM ET18/20/24 us 1.3 * et18_20_24b510.fm 5-27
5
Additional control circuit – AUX I (option)
1. Changeover to the dual-circuit function. The ball-type cock is located
on the right in traveling direction on the upper carriage.
2. The auxiliary hydraulics is enabled when the machine is started.
➥ Pressing button A changes over to boom swivel.
Operating the additional control circuit
Oil flow to right-hand line:
Press pedal 2 forward.
Oil flow to left-hand line:
Press pedal 2 backward.
Fig. 158: Ball-type cock
Hammer
operation (sin-
gle-circuit
function)
Grab opera-
tion (dual-cir-
cuit function)
Fig. 159: Changeover of boom swivel
A
Fig. 160: Boom swivel/auxiliary hydraulics pedal
2
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