Hansen P4 Service Manual page 15

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6.2.3. Instrumentation and settings
For detailed information on lubrication system, instrumentation and settings, refer to the certified
drawing, the service manual of the lubrication and cooling system and/or separate leaflets on
instrumentation, supplied with this manual.
Settings stated on the certified drawing have been set during test-run by
HANSEN and should not be altered without written authorisation.
Presettings, if stated, are recommended values set by HANSEN, but may be altered according
to local conditions.
6.3. OIL SELECTION
Mineral oils containing EP additives, which increase oil film load capacity, should be used.
Always use oil of the type and with viscosity characteristics corresponding
to those given on gear unit's nameplate.
The viscosity has been selected according to operating conditions specified in the order.
For conversion from ISO viscosity class VG to other viscosity units see table of corresponding
lubricants page 23. The table is not exhaustive; equivalent brands can be used.
The oil suppliers are responsible for the selection and composition of their products.
Synthetic oils may be used only after written authorisation from the HANSEN
Engineering Department.
Only synthetic oils of the polyalpha-olefine type (SHF-type, Synthetic Hydrocarbon Fluid)
containing EP additives may be used. Due to the good oxidation- durability of synthetic oils their
life expectancy is longer than that of mineral oils of the same viscosity and for the same working
conditions. A longer use is only permitted if an oil analysis is made regularly (every 4000 hours)
by the oil supplier or a qualified laboratory, in order to determine the exact life-time of the oil.
6.4. OIL QUANTITY
(see fig. 5, page 16)
The oil level is determined by min. and max. markings on the dipstick.
An oil level glass or an oil level switch is optionally available.
THREADED DIPSTICKS SHOULD BE CHECKED IN PLUGGED POSITION.
The oil level must be checked when the gear unit is out of operation.
On systems with filters and coolers, oil level must be checked with
lubrication and cooling system filled with oil and after short test run.
The lubrication and cooling system, including the cooler, is automatically utilized when the oil
bath temperature rises above 60°C (140°F).
If oil filling is required to take place earlier, manual ventilation of the cooler must be carried out
whilst the pump is in operation.
The oil quantity mentioned on the nameplate of the gear unit is an approximate value given only
for procurement purposes.
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