General; Definitions - Zoomlion RT60 Manual

1.4 GENERAL

1. Rated loads as shown on Lifting Charts pertain to this machine as originally
manufactured and equipped. Modifications to the machine or use of optional
equipment other than that specified can result in a reduction of capacity.
2. Construction equipment can be hazardous if improperly operated or maintained.
Operation and maintenance of this machine shall be in compliance with the
information in the Operator's Manual and Maintenance and Service Manual supplied
with this machine. If these manuals are missing, order replacements from the
manufacturer through your distributor.
3. These warnings do not constitute all of the operating conditions for the crane. The
operator and job site supervision must read the Operator's Manual .
4. This crane and its load ratings are in accordance with ASME/ANSI B30.5. .

1.5 DEFINITIONS

1. LOAD RADIUS – The horizontal distance from the axis of rotation before loading to
the center of the vertical hoist line or tackle with a load applied.
2. LOAD BOOM ANGLE – It is the angle between the boom base section and the
horizontal, after lifting the rated load at the rated radius. The boom angle before
loading should be greater to account for deflections. The loaded boom angle
combined with the boom length give only an
approximation of the operating radius.
3. WORKING AREA – Areas measured in a
circular arc about the centerline of rotation as
shown in the diagram.
4. FREELY SUSPENDED LOAD – Load hanging
free with no direct external force applied
except by the hoist rope.
5. Side load – Horizontal force applied to the lifted load either on the ground or in the air.
6. EXTRA-CAUTION ZONE – Tipping can occur with some boom/jib combinations at
radii within this area without any load on the hook.
7. BOOM SIDE OF CRANE – The side of the crane over which the boom is positioned
when in an OVER SIDE working position.
RT60 Rough Terrain Crane
CRANE WORKING POSITIONS
WITHOUT OUTRIGGERS WITH OUTRIGGERS
360
C
L
±3
BOOM
OVER FRONT
THESE LINES DETERMINE THE LIMITS OF
WORKING POSITIONS WHITCH CORRESPOND TO
THOSE SHOWN ON THE CRANE CAPACITY CHART.
360
C
L
BOOM
CENTER OF
ROTATION
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