SHB 28Z3 EN – Edition 2.0 * 28z3s710.fm 7-5
Options
7.4 Grab pipework
Connect and disconnect the grab couplings as follows:
Removing the coupling:
☞ Park the machine on level ground
☞ Extend stick ram A halfway through
☞ Stop the engine
☞ Turn the ignition key to position “1”
☞ Release the pressure on the stick ram A by moving the right-hand control lever to the
left and right
☞ Fold the control lever base up
☞ Turn lock sleeve C towards lock ball B
☞ Pull lock sleeve C upwards
☞ 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)
Changing over the ball-type cock:
Bucket operation:
☞ Set the ball-type cocks to position A
Grab operation:
☞ Set the ball-type cocks to position B
Attachments
Notice!
Please refer to the Operator's and maintenance manual of the attachment manu-
facturer for using and carrying out maintenance on attachments such as hammers,
grabs etc.
Fig. 1: Grab couplings
B
A
C
Fig. 2: Grab ball-type cock
B
B
A