Table Of Scheduled Maintenance; Operator's Notes; Details Of Maintenance Operations - Helvi MFE-HD Manual De Uso

REDUCED SUCTION

TABLE OF SCHEDULED MAINTENANCE

TYPE OF CHECK OR
MAINTENANCE
1
GENERAL CHECK OF THE CONDITION OF THE AIR CLEANER
2
CLEANING
3
CHECK OF THE CONDITION OF THE SEALS
4
CHECK OF TIGHTNESS OF NUTS AND BOLTS
5
CHECK OF FILTER CLOGGING
6
CHECK OF EXTRACTOR FAN
7
REPLACEMENT OF BEARINGS
NOTE A
The cleaning intervals vary according to the type of fluid conveyed and its concentration and also according
to the type of work environment in which it is used. The end user must therefore define a cleaning interval
suitable to always keep the machine perfectly clean; the accumulation of material on the fixed parts must
not be more than 5 mm thick.
NOTE B
A special device (optional) on the equipment signals the need to replace the filters. It is however recom-
mended to check whether the filters are clogged for maximum suction and machine efficiency; for this
reason the cleaning interval described in the filter paragraph should be respected and the entire filter set
should be replaced at least once a year. The filters deteriorate even if they are not used very often.
NOTE C
The fan extractor must be monitored at intervals established by the user to check that it is good working
order, to check for faults or damage to the impeller and to check that the electric motor is in good condition.
NOTE D
This is the lifecycle defined for the bearings, however due to external factors such as increased vibrations for
a certain period of time the replacement of the bearings may have to be carried out at shorter intervals. At
the end of their lifecycle, the bearings should be replaced even if apparently they seem in good condition.

DETAILS OF MAINTENANCE OPERATIONS

The following table must be completed by a specialized technician authorized by HELVI S.p.A..
It is of fundamental importance to keep these notes up-to-date in order to have an affective record of the
problems encountered and the maintenance performed; in this way future malfunctions could be settled
in a short time and with the least economic expenditure.
30
Clogged filters
Air leaks on the machine
Unbalanced impeller
PERIODIC CHECKS

OPERATOR'S NOTES

Check the status of the filters; in case
replace the filters with a new set.
Check that there are no drafts of
air or strange openings on the
carpentry. If possible try to seal
everything with silicone.
Check the condition of the impeller,
checking that it has no broken parts
or dirt on the blades. Remove the
fan assembly and clean the impeller
completely.
METHOD
VISUAL
MANUAL
VISUAL
MANUAL
VISUAL OR MANUAL
MANUAL
MANUAL
FREQUENCY
DAILY
See note A
150 HOURS
150 HOURS
600 HOURS See note B
See note C
40000 HOURS See note D