S220/S221/S230/S231/Z200 6-7
Attachments 6
Figure 6-16
Figure 6-17
6.3.2 Front-end excavator
Mounting
The front-end excavator is mounted in a manner similar to
the multi-purpose bucket (section 6.3.1), except that all
four hydraulic hoses of the front-end excavator must be
connected to the four quick-change couplings of the quick-
change device (6-16).
CAUTION
When making connections, make sure that the
hydraulic connections are clean and completely
connected and that the colour coding coincides.
NOTE
Improper connection of the hydraulic hoses may
mean that movements of the front-end excavator
arm and/or the shovel do not correspond to the
symbols in the sign for the auxiliary hydraulic
system.
DANGER
The front-end excavator is mounted and locked
correctly when it is located next to the quick-
change device and the piston rods of the quick-
change device cylinder can be plainly seen (6-17/
arrow).
Dismounting
The front-end excavator is dismounted in a manner similar
to the multi-purpose bucket (section 6.3.1), except that the
four hydraulic hoses of the front-end excavator must be
disconnected from the four quick-change couplings of the
quick-change device.
NOTE
The type plate is on the right-hand side of the
shovel, near the support.
6.3.2.1 Shovel replacement
(1) Prop up the bucket arm mechanically [e.g. by inser-
ting the bucket arm support (option) (1-2/arrows)].
(2) Position the front-end excavator so that the rear of the
shovel lies on the ground.
(3) Depressurise the hydraulic lines. For this purpose,
press both pushbuttons for the auxiliary hydraulics (4-9/3)
alternatingly several times.
(4) Close the ball block valve (1-2/arrow) for the working
and auxiliary hydraulics.
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