Terex Genie Z-33/18, Руководство по обслуживанию и ремонту

Страница: 42 / 117

3-20 Z ® -33/18 Part No. 1268514GT
January 2020 Section 3 • Repair Procedures
5 Tag, disconnect and plug the primary boom
extension cylinder hydraulic hoses. Cap the
fittings on the 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.
6 Raise the primary boom to a horizontal
position.
7 Attach a 5 ton / 5,000 kg overhead crane to the
primary boom.
8 Attach a similar lifting device to the primary
boom lift cylinder, rod-end.
9 Place support blocks under the primary boom
lift cylinder on the counterweight top surface.
10 Remove the pin retaining fasteners from the
primary boom lift cylinder rod-end pivot pin.
Use a soft metal drift to remove the pin.
WARNING
Crushing hazard. The primary
boom and primary boom lift
cylinder could fall if not properly
supported.
11 Lower the rod end of the primary boom lift
cylinder onto support blocks. Protect the
cylinder rod from damage.
12 Remove the pin retaining fasteners from the
primary boom pivot pin.
13 Remove the primary boom pivot pin with a soft
metal drift. Carefully remove the primary boom
from the machine and place it on a structure
capable of supporting it.
WARNING
Crushing hazard. The
primary boom could become
unbalanced and fall when
removed from the machine if
not properly attached to the
overhead crane.
During removal, the overhead crane strap will
need to be carefully adjusted for proper balancing.
PRIMARY BOOM COMPONENTS