Routine Maintenance - BONFIGLIOLI VF Series Installation, Operation And Maintenance Manual

6.2

ROUTINE MAINTENANCE

Respect the manufacturer's routine maintenance schedule to keep the gearbox at peak efficiency.
Good maintenance ensures maximum gearbox performance, extended service life and continued
compliance with safety regulations.
List of routine checks
We recommend keeping a checklist of inspections so that any changes in individual control parameters can
be identified rapidly and easily.
The times indicated in the following tables vary significantly in relation to the conditions of use of
the gearbox and must be construed as valid in the absence of other types of problems.
Depending on the temperature reached by the lubricant, it should be replaced at the intervals indicated in
the table below.
(tab 7)
Average oil opera-
ting temperature
[C°]
t < 65
o
65 < t
o
80 < t
o
(*) = Replacement within 1 year
(tab 8)
First oil change after putting into service (excluding gearboxes that are
lubricated "for life")
Subsequent oil changes
Noise, vibration
External condition of gearbox (fouling, oil deposits)
Oil leaks, external seals and gaskets
Oil level
Tightness of fixing bolts, connecting flanges and torque transmission
components
Regrease bearings and seals (where required)
Condition of torque arm polymer bushes (aging, cracking)
Condition of oil in gearbox (possible presence of contaminants,
especially water)
Alignment of gearbox shafts with respect to coupled machine shafts
Cleanliness of electric motor fan and fan cowling (if present) and cleanliness
of gearbox body
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IOM Manual VF-W_ATEX_gb - Translation of original instructions in Italian - Rev 03_0 - 30/09/16
mineral oil
EP(*)
not required
not required
< 80
not required
< 95
Inspection parameter
Interval replacement [h]
synthetic oil
PAO
not required
not required
not required
PAG
25000
15000
12500
Frequency
300 h
see the above table
24 h
170 h ... 720 h
720 h
720 h
2000 h ... 4000 h
2000 h ... 4000 h
3000 h
2000 h ... 9000 h
9000 h ... 18000 h
at each oil change