USE AND MAINTENANCE MANUAL FOR
JIB CRANE
-
GRL SERIES
53
6.3 Maintenance plan
The maintenance plan includes all ordinary type operations, that entail inspections, tests and checks
conducted by the operator assigned to use of the crane and/or qualified personnel assigned to normal
company and periodic type maintenance which include replacement, setting and lubrication operations
performed by technical personnel instructed for the purpose through specific courses or publications.
•
Since maintenance operations can be performed at a
dangerous height above ground, the assigned personnel must
have appropriate means (scaffolding, platform, ladders, etc.)
that make it possible to perform the activity in safe conditions.
•
Personnel must also be in possession of adequate personal
protection equipment (P.P.E.) required by current laws.
6.3.1 Daily and routine maintenance
This involves maintenance operations that can be directly performed by the operator assigned to use the
crane or qualified personnel, as prescribed in this publication and/or in any attached documents, which do
not require the use of special instruments and equipment.
Maintenance operations are divided into:
Daily operations, handled by the operator assigned to crane use:
•
general visual inspections
•
functional tests with testing of motors, limit switches, clutch device, brakes with
no load,
“
stop
”
button, and other functions of the pushbutton panel
•
testing of the chain and hook conditions
testing of correct crane arm rotation
Monthly operations, handled by qualified personnel:
•
visual inspection of each mechanism and for lubricant leaking
•
functional testing of full load brakes
•
checking that no anomalous noises and/or vibrations exist
•
greasing of the mechanisms and limit switches to ensure regular operation
and limit wear
testing of the operation and conditions of the pushbutton panel and relative cable.
Quarterly operations, handled by qualified personnel:
•
check the efficiency and wear of: hook, chain and chain guide
•
check the nut, block/subblock wear
•
check the wheel, pinion, guide roller of the traverse trolley wear
•
check the efficiency and operation of the load limiter.
•
inspect the interior of the panels to check for the presence of dust
•
check and clean oxidised contacts and any plug/socket connectors
•
check the greasing of the mobile trolleys of the cable line and check the cables
•
check the efficiency and conditions of the power line and its components
•
test the motors and brakes with load with check of wear
•
check the efficiency and preservation of the structure (paint, oxidation, etc.)
Summary of Contents for GRL Series
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