CHIARAVALLI
CHM - USE AND MAINTENANCE INSTRUCTIONS
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CHM - USE AND MAINTENANCE INSTRUCTIONS
INSTALLATION
· The data shown on the identification name plate must correspond to the gear ordered.
· The oil level, for the sizes 110 and 130 equipped with filling, draining and level plug, must
correspond to the quantity foreseen for the assembly position requested (see catalogue), in
addition, always for the sizes indicated, it will be the client’s responsibility to substitute the blind
plug, supplied for transport, with the corresponding plug equipped with a bleed hole included
in the supply with the gear.
· All of the other gears are supplied complete with permanent synthetic oil in a quantity that is
sufficient for any assembly position.
· The gear must be fixed on a flat surface that is sufficiently rigid in order to avoid any vibration.
· The gear and the axis of the machine to be driven must be perfectly aligned.
· In the event that knocks, overloading or blockage of the machine are foreseen, the client must
install a limiting device, joints, overload cut-out etc.
· Coupling with pinions, joints, pulleys and other parts must be done after the parts have been
cleaned and knocks should be avoided while assembling as they could damage the bearings
and other internal parts.
· In the event that the motor is supplied by the client, he must check that the flange and shaft
tolerances correspond to a “normal” class; our motors satisfy this requirement.
· Check that the fixing screws for the gear and the related accessories are correctly tightened.
· Take suitable measures to protect the groups from any aggressive atmospheric agents.
· Where foreseen, protect rotating parts from any possible contact with the operators.
· If the gears are painted, protect the oil seals and the machined surfaces.
· All of the gears are painted RAL 9022 grey.
OPERATION AND RUNNING-IN
· To obtain the best performance the gears must first be runin by gradually increasing the power
in the first few hours of operation, in this phase an increase in temperature is considered
normal.
· In the event of defective operation, noise, oil leakage, etc. stop the gear immediately and,
when possible, remove the cause. Alternatively, send the piece to our factory to be controlled.
MAINTENANCE
· The worm gears from size 25 to size 90 and the pre-stage modules are lubricated with
permanent synthetic oil and therefore do not require any maintenance.
· The gears size 110 and 130 are lubricated with mineral oil and are equipped with a breather
plug, therefore the oil level must be checked periodically and if necessary topped up with the
same oil or one that is compatible with those indicated in our catalogue.
· For the gears size 110 and 130 proceed with the substitution of the oil after the first 300
working hours, replacing it with the correct quantity in accordance with the assembly position,
as detailed in our catalogue, after the inside of the gear has been thoroughly washed.
WAREHOUSE STORAGE
· If the warehouse storage will be for a long time, more than 3 months, the shafts and machined
surfaces should be protected using antioxidants and the oil seals should be greased.
HANDLING
· Care must be taken not to damage the oil seals and the machined surfaces when handling the
groups.
DISPOSAL OF PACKAGING
· The packaging in which our gears are delivered should be sent to specialised companies for
recycling if possible.