3-14
GTH-1544
Part No. 1272857
September 2016
Section 3 • Repair Procedures
BOOM COMPONENTS
6 Remove the retaining fasteners securing the
level cylinder barrel end pivot pin.
7 Using a soft metal drift and a hammer, remove
the pivot pin.
8 Carefully lift and remove the cylinder from the
machine.
DANGER
Crushing hazard. The cylinder
could fall if not properly
supported when removed from
the machine.
How to Replace the Fork Level
Cylinder Hoses
Note: When removing a hose assembly or
fi
tting,
the O-ring on the
fi
tting and/or hose end must be
replaced and then torqued to speci
fi
cation during
installation. Refer to Section 2,
Hydraulic Hose
and Fitting Torque Specifi cations
.
1 Start the engine.
2 Raise the boom to a horizontal position.
3 Fully retract the boom.
4 Turn the machine off and remove the key from
the key switch.
5 Before replacing a hydraulic hose, thoroughly
clean the machine.
6 Tag, disconnect and plug the hydraulic hoses
from the fork level cylinder.
WARNING
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
7 Securely attach a guide rope (lenght about 395
inches / 10 m) to the hydraulic hoses. This will
be used to install the new hoses.
8 At the pivot end of the boom, remove the lateral
fasteners securing the hoses inside the
fi
rst
boom section, and pull the hoses out of the
boom.
9 Get underneath the boom, disconnect the
hoses from
fi
ttings “c”, then pull out the hoses
from underneath the boom.
Содержание GTH-1544
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