USE AND MAINTENANCE MANUAL FOR
JIB CRANE
-
GRL SERIES
51
Mechanical technician
•
Typical technical activities:
mechanical adjustments of safety devices, calibrations and acceptance tests (annual load tests)
routine maintenance operations after replacement of complex mechanical components and/or
those which are critical for safety purposes (anchoring components, arm, gear motors, motors, etc.)
repair of mechanical units after extraordinary maintenance operations (repair of structural parts
with welding, mechanical machining on the crane, etc.)
•
Required technical knowledge:
knowledge of lifting and industrial handling mechanical systems certified by specific training
specific knowledge of the safety devices used in the hoist (limit switch, brakes, load limiter, clutch,
etc.)
basic knowledge of electrical control and adjustment techniques (testing of motors)
specific competence in measurement and test methods for determining the actual state of the crane
and hoist conditions (testing of: brakes, pushbutton panel, control panel, limit switch, etc.)
specific competence on logical troubleshooting methods and result assessment
ability to oversee the measurements aimed at restoring the jib crane operation and performance
ability to write a maintenance intervention report
•
Required qualification:
Complete training as an industrial mechanic technician with specialisation and specific competence
in lifting and handling systems.
Electrical technician
•
Typical maintenance activities:
electrical adjustments of safety devices, calibrations and acceptance tests (annual load tests)
routine maintenance operations including replacement of complex electrical components and/or
those which are critical for safety purposes (lifting limit switch, motors, LV panel)
repair of electrical units after extraordinary maintenance operations (repair of electrical motors with
partial replacements, replacement of limit switch with changes in layout, etc.)
•
Required technical knowledge:
excellent knowledge of electrical systems and installations on lifting and industrial handling
equipment
specific knowledge of electrical components and safety devices used in the hoist (limit switch,
brakes, load limiter, etc.)
experience with electrical control and adjustment techniques (ability to intervene on the original
diagram for improvements on; limit switch, pushbutton panel, control panels, cables, etc.)
knowledge of mechanical control and adjustment techniques (testing of wear, testing of mechanical
component performance, adjustment of mechanical stops, noise testing, etc.)
specific competence on the measurement and test methods to determine the actual state of the
hoist conditions (testing of the efficiency and reliability of the electrical equipment)
specific competence on the logical troubleshooting methods and risk assessment on the command
and control electrical equipment of lifting equipment
ability to oversee the measurements aimed at restoring the crane and hoist operation and
performance
Summary of Contents for GRL Series
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