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2.3. Boom system and add-on lifting accessories
The
boom
system
components:
(1) 1st boom
(2) 2nd boom
(3) Hydraulic extensions
The length of the hydraulic extension depends on the type
of crane.
(4) Grapple
Add-on lifting accessorie is placed between the boom tip
and the load.
2.4. Stabiliser system
All our cranes are equipped with two stabiliser extensions
and two stabiliser legs. Auxiliary stabiliser systems may be
needed for heavy cranes.
• (1) Stabiliser beam. The stabiliser beam is a part of the
crane base.
• (2) Stabiliser extensions.
• (3) Stabiliser locking device.
• (4) Switch
• (5) Stabiliser leg.
2.5. Operating system - hydraulic components
The operating system consists of the following hydraulic components:
• oil tank
• hydraulic pump
• oil cooler [option on some cranes]
• main control valve
• stabiliser control valve
• hydraulic hoses and lines
• actuators:
first boom cylinder
second boom cylinder
extension cylinder/s
slewing cylinders
• return filter/oil tank
• pressure filter
Structure and parts of the crane
consists
of
the
Jonsered 1250RZ -1500RZ safety+R CE
following
⑤
11
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