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9 MAINTENANCE
9.1 WARNINGS
• Do not wear rings, wristwatches, jewelry, loose-fitting or hanging clothing such as ties, torn garments,
ordinary shoes, unbut toned jackets or un-zipped overalls, which could get caught up in the moving
parts of the crane. Instead, always wear approved accident-prevention clothing such as protective
helmets, anti-slip shoes, anti-noise headphones, protective glasses, and reflective jackets with bre
athing apparatus. Consult your employer concerning current safety regulations and accident-pre
vention equipment.
• Apply a clearly visible plate on the cab door or on the control valve with the notice: “crane under
maintenance. Do not start”
• Do not get under any raised part of the crane, unless a safety lock support has been applied to it.
• Before starting any maintenance or repair operation always install safety locking supports on any
raised part of the crane, especially the boom system.
• Do not jump into or out of the machine, always use adequate steps and handrails.
• The truck engine should be started in closed rooms only if well aired.
• Before operating the crane make sure that nobody stays or walks in the working area.
9.2 MAINTENANCE PRESCRIPTIONS
• Many damages and accidents are caused by a bad maintenance or by mistakes in the maintenance
itself. Common causes are recognized to be:
leacking of oil, grease or anti-freeze liquid.
dirt on crane components or assemblies.
breaking of ropes or slings.
safety valves, load limiting device or other safety devices out of service or not in good working
conditions.
hydraulic plant in bad conditions, for instances: hoses damaged, loose hydraulic fittings, etc.
• Every maintenance work has to be carried out with care.
• Do not delay repair or maintenance works on the crane.
• Repair works must be assigned only to qualified, skilled people.
• The recommended procedures of repair and maintenance must always be followed carefully. If ne
cessary ask for a preventive authorization.
• Before taking any part away of the crane, always switch the motor off and be sure that the pressure
in all the circuits has been discharged. See relevant manual.
• Do not put the head or fingers or feet or arms or any other part of the human body into an area where
the danger of shearing or crushing exists, if the parts of the machine have not previously locked in a
safe way.
• Do not use your fingers to align holes or slots: always use appropriate centering tools.
• Wear protective glasses with side shields to protect your eyes when using compressed air for clea
ning the machine parts. Do not allow the pressure of the air to exceed 2 bar (29 psi).
• The access steps or platforms in the workshop or where the crane is operated must be built accor
ding to current hazard avoiding regulations.
• Never use petrol or thinners or other flammable liquids or detergents. Use instead authorized com
mercially sold cleaning products which are granted to be non-flammable and non toxic.
