User`s manual
72
Hoists
(1) Clean shafts, joints and other exposed machined surfaces using solvent and coat them with an anti-rust product.
(2) Keep bearings greased if they are not of the “life lubricated” kind.
(3) Clean loading chains and steel wire ropes and coat them with a suitable lubricant.
(4) Lubricate pulleys, pinions and sprockets applying grease on their teeth and grooves.
PRODUCTS AND MANUFACTURERS
SHELL MOBIL VALVOLINE AGIP APPLICAZIONE SU
ENSIS FLUID-S
METAL GARD 360
TECTYL 502 C
RUSTIA 81
MACHINED MECHANIC
COMPONENTS
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TECTYL 846
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SHIPMENTS BY SEA
DRYING SUBSTANCES: drying substances for absorbing humidity must be recyclable, non-corrosive and with a colored
indicator to indicate its exhaustion
OPERATIONS TO BE CARRIED OUT BEFORE SETTING MACHINES TO WORK WHICH HAVE UNDERGONE A
LONG PERIOD OF STORAGE ON THE SITE OR INACTIVITY
(to be carried out by a qualified operator)
STRUCTURES:
• Remove protection which is applied to rails, and any traces of paint or lubricant.
• Remove protection from threaded holes, e.g. end carriages to crane beam fixings, if necessary by tapping.
• Remove protection, lubricant, paint or any corrosion from bright mating surfaces, e.g. end carriage to crane beam.
• Repair any damage to crane beam flanges (single girder cranes) or mating surfaces that may have been caused by
mishandling or through storage.
• Using the correct paint, touch up parts that have been effected by handling and through storage.
MECHANISMS:
• Check there are no leaks of lubricant from the reducers and replace any damaged seals.
• Top up the lubricating oil.
• Check that all the elements which hold the mechanisms to the structures are tight.
• Remove any traces of corrosion from rotating or sliding pins such as limit switches, control pins, saddles for activating
micro-switches, control chains for various components.
• Check any corrosion of the wires which make up the rope. Clean the metal ropes, the pulley grooves and the lifting drums.
Lubricate with grease.
• Lubricate the axle ball bearing of the hooks, it not sealed for life type.
• Remove any water which has gathered in the concave parts of covers, ball bearings, fins.
• Lubricate the surface of the mechanical parts which are not painted (transmission shafts, couplings, control rods).
ELECTRIC
PART:
• Check the overall condition.
• Motors: Remove all condensation from the inside sucking air through the open terminal box or after having taken off the end
cover. Dry with blasts or air.
• Disk brakes: open the brake cover and remove all disks.
• Dry using air, check the condition an efficiency of the springs. Put the disks back after having carefully
• cleaned the braking surface and restored the air gap.
• Brakes and shoes: clean the braking surfaces carefully and remove all traces of humidity, paint or lubricant.
• Apply some lubricant to the articulations.
• Limit switches: limit switches must be checked carefully to establish their good running order both from the mechanical and
electrical points of view. Particularly lubricate the moving joints and pins.
• Control switch-gear: open al casings, remove condensation, dry the contacts of the remote control switches. Check the
condition of any electronic cards. Spray all components with a suitable substance. Apply Vaseline to the closing sections
and to the threaded covers off all the explosion-proof containers after having cleaned the surface carefully.
• Carry out insulation test at 2000 V after having first insulated any bridge rectifiers electronic cards, or DC brakes.
• Check that all electric lines and loops slide easily and if necessary lubricate trolley-wheels after having carefully cleaned
railways.
• A very thorough check should be carried out on the push-button control pendant: remove condensation, check that contacts
are working properly, and that terminals are well-secured. For explosions-proof version check the that pins turn perfectly
and the small control pistons slide properly, then lubricate.