OM 803 us – Edition 3.7 * 803b340.fm 3-77
Operation
Installing a bucket
• Install a bucket only if it is positioned on level ground with the flat side facing downward
• Apply grease to the pins and joints before inserting the pins
• Start the engine
• Straighten the stick so that bores D and E are flush
• Insert greased pin F
• Actuate the stick cylinder until bores H and I are flush
• Insert the greased pin J
• Install linch pins K
Connections for auxiliary hydraulics
For hammer operation we recommend installing the hydraulic lines up to the
stick in order to avoid damage – see chapter Connections for auxiliary
hydraulics (stick hose routing option) on page 3-78.
Auxiliary hydraulics can be connected as required.
If the machine is equipped with the double-action auxiliary hydraulics option, only the flow
direction of the hydraulic oil changes.
Follow the instructions in the Operator’s Manual of the attachment manufac-
turer for connecting the auxiliary hydraulics to an attachment.
Connect and disconnect as follows:
☞Park the machine on level and horizontal ground.
☞Extend the stick cylinder halfway through.
☞Stop the engine.
☞Release the pressure on the operating hydraulics
– see chapter 3.19 Pressure release on the auxiliary hydraulics on page 3-75.
➥The attachment couplings can be connected.
☞Raise the lock lever.
☞Remove the starting key.
Fig. 167: Installing a bucket
D
H
I
E
F
K
K
J
Fig. 168: Auxiliary hydraulics connections
U
T
Connection Left side of boom Right side of boom
T
☞Return line
U
☞Pressure line
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