The products supplied by Rossi S.p.A. have been designed and manufactured according to the essential health and
safety requirements provided for by Machine Directive 2006/42/EC - Annex I.
The following table lists the residual risks that the user is required to handle in accordance with the instructions
contained in this document and in those, if any, enclosed with the shipment.
General safety information 1
Residual risks
Nature/Cause of risk Countermeasures
Installation and maintenance
operations
The component must be handled, installed, commissioned, operated, inspected,
maintained, and repaired only by qualifi ed, responsible personnel who must
carefully read and strictly follow all instructions in this document, including any
instructions enclosed with the shipment. They shall also be specifi cally instructed
and have the necessary experience to recognize the hazards and potential hazards
(electrical or mechanical) associated with these products, such as, but not limited to:
- presence of electrical voltage;
- presence of temperature higher than 50 °C;
- presence of moving parts during operation;
- presence of suspended loads;
- presence of possible high sound level (> 85 dB (A)).
It must be equipped with appropriate personal protective equipment (PPE) and be
familiar with and comply with all applicable regulations regarding proper installation
and current safety laws in order to ensure the safety of persons and avoid signifi cant
damage to the machine or system.
Falling or projecting objects For gearboxes equipped with a backstop, provide a protection system against the
projection of objects resulting from the breaking of the backstop
For gearboxes equipped with a coupling (high or low speed shaft), provide protections
against the projection of objects resulting from breakage of the coupling itself.
For shaft-mounted gear units, provide appropriate safety devices against:
- loosening or breaking of the mounting screws;
- rotation or loosening of the gear unit from the machine pin due to accidental breakage of
the reaction constraint;
- accidental breakage of the machine pin.
Movable elements Provide safety guards for unused shaft ends and accessible fan cover passages (or
others).
Any operation on the gear reducer or gearmotor must be carried out with the machine
stopped and disconnected from the power supply, after the gear reducer or gearmotor have
cooled down.
Extreme temperatures During operation, the gear reducers may have hot surfaces (> 50 °C); before starting any
operation, always wait for the gearbox or gearmotor to cool down (wait about 1 to 3 hours
depending on the size); if necessary carry out a temperature measurement on the surface
of the gearbox or gearmotor near the high speed shaft. The same applies to the hydraulic
coupling, if present.
After a period of operation, the gear reducer will undergo a slight internal overpressure that
can result in the leakage of burning fl uid.
Therefore, wait until the gear reducer has cooled down before loosening the caps (of
any kind); alternatively, use appropriate protections (PPE) against burns resulting from
accidental contact with hot oil.
In all cases, always proceed with great care.
Noise Depending on the size, gear ratio, transmission ratio, duty cycle type, and mounting system
of the gear reducer or gearmotor, the noise emission level may exceed 85 dB(A). Perform
fi eld measurements and, if necessary, equip the personnel concerned with appropriate
personal protective equipment (PPE).
Changes that may aff ect the
safety of the equipment
Do not make any structural modifi cation to the products supplied by Rossi (reducers,
gearmotors, control group, etc.) without prior approval by Rossi S.p.A.
Use of replacement
components with
characteristics unsuitable for
the application
Spare parts must be those authorized by Rossi S.p.A.
Table 1.2.1 Residual risks
7
UT.D 208-2021.12-EN
