20
— Condition of threaded connections – tighten if necessary.
—
Surface condition. Periodically clean the motor from impurities and dirt which can hinder heat exchange.
—
At least once three months lubricate the moving element of the boiler (gears with chain, hinges and so on).
Motor
The motor bearings are of closed type and are lubricated with long-term grease, therefore in normal conditions the
bearings do not need maintenance or re-lubricating for the period of 20.000 working hours, but no longer than
three years.
Upon expiration of above period of time it is recommended to replace motor bearings.
Reducing gear
The reducing gear is filled with synthetic oil which, in normal conditions, should be replaced every 20,000 working
hours, but at least every three years.
If oil replacement is necessary, please use one of oils specified below:
The table below specifies lubricants that can be used for lubricating of worm gear-motors:
Oil type
Oil
type
Working
tempera-
ture
range
Synthetic
oil
