BA 1404 en – Edition 2.7 * 1404b340.fm 3-77
Operation
Grab couplings
Connect and disconnect the grab couplings as follows:
Removing the coupling:
☞ Park the machine on level and horizontal ground
☞ Extend stick cylinder A halfway through
☞ Stop the engine
☞ Turn the starting key to position 1
☞ Release the pressure on stick ram A by moving the right-hand control lever to the left
and right
☞ Raise the control lever base
☞ Turn lock sleeve C toward lock ball B
☞ Pull lock sleeve C upward
☞ The coupling opens
Connecting the coupling:
☞ Connect the coupling onto the stick ram connection making sure it is straight
☞ Wait until you hear a hissing sound of the connection
☞ Fully connect the coupling on the connection
☞ Turn back the lock again (away from lock ball B)
Attachments
Please refer to the Operator’s and maintenance manual of the attachment
manufacturer for using and performing maintenance on attachments such as
hammers, etc.
Maintenance of attachments
Correct maintenance and service is absolutely necessary for smooth and con-
tinuous operation, and for an increased service life of the attachments.
Observe the lubrication and maintenance instructions in the Operator’s Manu-
als of the attachments.
3.36 Working with the standard bucket
The following section describes work operations with the machine equipped with the
standard bucket.
The standard bucket is mainly used for earth-moving applications, and for loosening, pick-
ing up, digging and loading loose or solid material.
Abb. 160: Grab couplings
B
A
C
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