OM 25-3503 us – Edition 4.1 * 2503_3503b340.fm 3-101
Operation
Information!
Follow the instructions in the Operator’s Manual of the attachment manufac-
turer for connecting the hydraulics to the attachment.
3.56 Grab operation
Bucket operation:
☞ Set the ball-type cocks to position A
Grab operation:
☞ Set the ball-type cocks to position B
Coupling:
☞ Park the machine on level and horizontal ground.
☞ Extend stick cylinder A halfway through.
☞ Stop the engine.
☞ Set the ball-type cocks to position B
☞ Release the pressure in the hydraulic system – see chapter 3.50 Releasing the pres-
sure on the operating hydraulics on page 3-88.
☞ The grab can now be coupled onto couplings C and D.
Uncoupling:
☞ Park the machine on level and horizontal ground.
☞ Extend stick cylinder A halfway through.
☞ Stop the engine.
☞ Release the pressure in the hydraulic system – see chapter 3.50 Releasing the pres-
sure on the operating hydraulics on page 3-88.
☞ The grab can now be uncoupled from couplings C and D.
☞ Set the ball-type cocks to position A
Fig. 236: Connections on the right
C
B
A
Fig. 237: Grab ball-type cock
A
B
B
A
Fig. 238: Grab couplings
D
C
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