EP(*)
PAO
PAG
t
o
< 65
25000
65 < t
o
< 80
15000
80 < t
o
< 95
12500
Average oil opera-
ting temperature
[C°]
Interval replacement [h]
mineral oil
synthetic oil
not required
not required
not required
not required
not required
not required
(*) = Replacement within 1 year
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 8)
(tab 7)
Inspection parameter
Frequency
First oil change after putting into service (excluding gearboxes that are
lubricated “for life”)
300 h
Subsequent oil changes
see the above table
Noise, vibration
24 h
External condition of gearbox (fouling, oil deposits)
170 h ... 720 h
Oil leaks, external seals and gaskets
720 h
Oil level
720 h
Tightness of fixing bolts, connecting flanges and torque transmission
components
2000 h ... 4000 h
Regrease bearings and seals (where required)
2000 h ... 4000 h
Condition of torque arm polymer bushes (aging, cracking)
3000 h
Condition of oil in gearbox (possible presence of contaminants,
especially water)
2000 h ... 9000 h
Alignment of gearbox shafts with respect to coupled machine shafts
9000 h ... 18000 h
Cleanliness of electric motor fan and fan cowling (if present) and cleanliness
of gearbox body
at each oil change
56 / 64
IOM Manual VF-W_ATEX_gb - Translation of original instructions in Italian - Rev 03_0 - 30/09/16
