Manitowoc 2250 MAX-ER 2000, Руководство оператора

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Reference
Only
SAFETY INFORMATION 2250 MAX-ER 2000 OPERATOR’S MANUAL
2-28
Published 01-08-13, Control # 049-05
Capacity Charts
Manitowoc provides two types of Capacity Charts for a crane
mounted on a barge or other supporting structure under
static conditions.
1. A Capacity Chart based on tipping when the crane is
anchored only to prevent shifting.
2. A Capacity Chart based on structural competence when
crane is securely fastened for use as a pedestal
mounted crane.
NOTE: Unless otherwise specified in a machine list
Capacity Chart, a 0 degree machine list Capacity
Chart rating applies to machine list not to exceed
1/2 degree. All other machine list ratings – 1°, 2°,
and 3° – must NOT be exceeded.
Shock Loading
Definition
Shock loads to the crane can be experienced when the
barge is subjected to up and down movement of wave action
(referred to as DYNAMICS). Figure 2-11 illustrates the
dynamic conditions of the barge which influence crane
capacity.
NOTE: Manitowoc does not recommend crane operation
under dynamic conditions.
Operation On Barge
General
Machine list and/or dynamics will be experienced when a
crane is operated on a barge, ship, or floating platform. Both
of these conditions reduce the crane’s capacity and each
must be taken into account for safe operation on a barge,
ship, or floating platform.
Definitions
1. Machine List, as defined by Manitowoc, is the crane’s
out-of-level condition — from side-to-side — as
measured by the angle between horizontal and a line
drawn through the centerline of the crane’s boom hinge
pins (Figure 2-12). This out-of-level condition creates
side load and affects the crane’s lifting capacity.
2. Barge List (also referred to as heel or trim) causes swing
out of the load and may produce side load. When
M an i to w o c p r o v i d es a C a pa c i t y C h a r t s h o w i n g
capacities for a 2 degree machine list for example, we
are referring to the maximum allowable lifting capacity
for the crane when experiencing an out-of-level
condition (side-to-side) of 2 degrees as measured by
FIGURE 2-11
AXIS TRANSITIONAL ROTATIONAL
SYMBOL NAME STATIC DYNAMIC STATIC DYNAMIC
X Longitudinal Surge Heel List Roll
Y Vertical Heave Yaw
Z Lateral Sway Trim Pitch
CAUTION
Structural Damage Hazard!
If crane boom or structure is shock loaded during
operation, or there is any indication of shock loading, all
structural components of crane shall be inspected to
detect cracks and other damage. Nondestructive test
equipment, such as magnetic particle or ultrasonic
procedures, is recommended for this inspection.
WARNING
Tipping Crane Hazard!
Tie-downs which only prevent crane from shifting as in
barge, ship or floating platform mounting, may not provide
adequate support when using a Capacity Chart for
pedestal mounting. Before operating a crane on a barge,
ship or floating platform, crane user shall verify that
correct Capaci ty Chart is bei ng used — pedestal
mounted, barge mounted, 0°, 1°, 2° or 3° list or dynamic
Capacity Chart.
Failing to use correct Capacity Chart can result in an
accident.