Terex Genie Z-40/23N, Руководство по обслуживанию и ремонту

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Service and Repair Manual September 2016
Primary Boom Components
38 Z-40/23N, Z-40/23N RJ Part No. 1268528
5 Support and slide the extension tube and
extension cylinder assembly out of the boom
tube.
Crushing hazard. The boom
extension tube could fall when
removed from the boom if not
properly supported.
Note: During removal, the overhead crane strap will
need to be adjusted for proper balancing.
6 Remove the external snap rings from the
extension cylinder rod-end pivot pin at the
platform end of the extension tube. Use a soft
metal drift to remove the pin.
7 Support and slide the extension cylinder out of
the base end of the extension tube. Place the
extension cylinder on blocks for support.
Crushing hazard. The extension
cylinder could become
unbalanced and fall when
removed from primary boom
extension tube if not properly
supported.
Note: During removal, the overhead crane strap will
need to be adjusted for proper balancing.
4-3
Primary Boom Lift Cylinder
The primary boom lift cylinder raises and lowers
the primary boom. The primary boom lift cylinder is
equipped with a counterbalance valve to prevent
movement in the event of a hydraulic line failure.
How to Remove the Primary
Boom Lift Cylinder
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications,
Hydraulic Hose and Fitting Torque
Specifications.
1 Raise the primary boom to a horizontal
position.
2 Raise the secondary boom until the primary
boom lift cylinder barrel-end pivot pin is above
the turntable covers.
3 Attach a 5 ton / 5000 kg overhead crane to the
primary boom for support.
4 Using the overhead crane, raise the primary
boom slightly to take the pressure off the
primary boom lift cylinder pivot pins.