Genie Z-34/22IC, Руководство по обслуживанию

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4 - 28 Z-34/22 IC Part No. 128267
July 2007 Section 4 • Repair Procedures
REV A SECONDARY BOOM COMPONENTS
42 Attach a lifting strap from an overhead crane to
the lug on the rod-end of the secondary boom
lift cylinder.
43 Tag, disconnect and plug the hydraulic hoses
from the secondary boom lift cylinder. Cap the
fittings on the cylinder.
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.
44 Use a slide hammer to remove the secondary
boom lift cylinder barrel-end pivot pins. Remove
the secondary boom lift cylinder from the
machine.
Crushing hazard. The secondary
boom lift cylinder could become
unbalanced and fall when
removed from the machine if not
properly supported by the
overhead crane.
Note: Access the pins using the access holes
located in the bulkheads, one on each side.
45 Attach a lifting strap from an overhead crane to
the mid-pivot for support. Do not lift it.
46 Remove the pin retaining fasteners from the
mid-pivot to lower compression arm pivot pins.
Place a rod through the compression arm pivot
pins and twist to remove the pins.
47 Remove the pin retaining fasteners from the
mid-pivot to lower secondary boom pivot pins.
Use a soft metal drift to remove the pin.
48 Remove the mid-pivot from the machine.
Crushing hazard. The mid-pivot
could become unbalanced and fall
when removed from the machine if
not properly supported by the
overhead crane.
49 Attach a lifting strap from an overhead crane to
the control box side lower compression arm.
50 Remove the pin retaining fasteners from the
lower compression arm to turntable pivot pins.
Place a rod through the compression arm pivot
pin and twist to remove the pin. Remove the
compression arm from the machine.
Crushing hazard. The lower
compression arm could become
unbalanced and fall when
removed from the machine if not
properly supported by the
overhead crane.
51 Repeat step 50 for the engine side lower
compression arm.
52 Attach a liftiing strap from an overhead crane to
the lower secondary boom.
53 Remove the pin retaining fasteners from the
lower secondary boom to turntable pivot pin.
Use a soft metal drift to remove the pin.
54 Remove the lower secondary boom from the
machine.
Crushing hazard. The lower
secondary boom could become
unbalanced and fall when
removed from the machine if not
properly supported by the
overhead crane.