User`s manual

47
DAILY AND PERIODICAL MAINTENANCE
It includes maintenance operations which can be directly performed by the machine operator or by qualified personnel, as
prescribed in this publication and/or in papers herewith attached, which do no require the use of special tools or equipment.
Maintenance operations are divided into:
DAILY OPERATIONS, FOR THE CARE OF THE HOIST OPERATOR:
• generic visual checks
• functional verifications: motor check, limit switch check, brake test with no load, test of the “stop” button and
of other functions of the push button control panel
• check of the conditions of wire rope and hook.
MONTHLY OPERATIONS, PERFORMED BY QUALIFIED PERSONNEL:
• visual check of each mechanism and of lubricant leaks, if any
• functional test of brakes with a full load
• check for anomalous noises and/or vibrations
• greasing of mechanisms and limit switches in order to ensure regular operations and limit their wear and tear
• check of functionality and integrity of the push button control panel and cable thereof.
QUARTERLY OPERATIONS, PERFORMED BY QUALIFIED PERSONNEL:
• verification of efficiency and wear and tear degree of: hook, wire rope and rope guide
• verification of the wear and tear degree of drum and pulleys
• verification of the wear and tear degree of wheels, pinions, traveling trolley’s and/or bridge’s guide rollers
• verification of efficiency and functionality of load limiter
• visual check of the switchboard’s inside to ascertain any presence of dusts
• verification of oxidized contacts: after cleaning, they are to be covered with a very thin layer of a specific product
• verification of greasing of traveling trolleys of the festooned line, if any, and check of cables
• verification of the efficiency and integrity of the power supply line and of its components
• verification of motors and brakes and check of their wear and tear degree
RECURRENCE AND DEADLINES OF MAINTENANCE OPERATIONS
The recurrence of the following operations refers to machines which are used under standard operation conditions and are
valid up to the M5 service group (ISO 4301/88 rule), or 2m (FEM 9.511 rule). If the hoist is normally and properly used on a
8-hour daily shift, its overhauling may be carried out after a period of use of 10 years approx. (FEM 9.755 – S.W.P. rule). If the
hoist is employed on more than one shift per day, maintenance intervals shall be reduced accordingly.