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ansen
T R A N S M I S S I O N S
10. MAINTENANCE
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Maintenance operations are limited to check oil level, to regular oil change,
to regrease the lubrication points and filter cleaning.
Oil quantity : see paragraph 6.4, page 8.
Oil draining : see paragraph 6.8, page 9.
Read also
points in the other paragraphs.
M
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10.1. INSPECTION AND MAINTENANCE
Rotating parts may cause harm and damage.
!
For inspection and maintenance always de-
energize the drive and make sure that the drive
is
secured
against
movement.
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10.2. OIL CHANGE
The first oil change should be carried out preferably after 100 hours and not
later than 800 hours of operation. The removed oil may be used again after
filtering. Filter the oil volume at least 10 times. Use a 10 µm filter or smaller.
Subsequently the oil should be renewed after 4000 to 8000 hours or max.
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18 months of operation depending on working conditions. Use clean oil out
of clean drums. Entrance of abrasive particles and water must be avoided.
The water content should be kept below 0,05%.
If the lubrication system has an oil filter, change the filter cartridge every 800
hours of operation.
Operating procedure and specifications are mentioned in the service manual
of the lubrication and cooling equipment and / or the technical leaflets con-
cerning the specific instrumentation.
Only steel mesh filter cartridge may be used again if thoroughly cleaned in a
solvent.
When operating continuously either at oil temperatures of 80° to 95°C (175°
to 200°F) or in dusty or humid atmosphere, it is recommended to have oil
analyses by oil supplier or qualified laboratory at least after 4000 hours in
order to define exact lifetime of oil bath.
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10.3. GREASE LUBRICATION POINTS
Regrease all lubrication points after every 800 hours of operation.
Recommended greases are given in lubricant table. (page 36)
For longer lubrication intervals: consult HANSEN.
10.4. MAINTENANCE FREE OIL-LOCK
The high speed shaft is equipped as standard with an OIL-LOCK
The high and low speed shaft of the Hansen P4 single stage gear units are
n
TM
equipped with an OIL-LOCK
maintenance free due to its centrifugal operating principle. The dual purpose
labyrinth seal also prevents the entrance of dirt and moisture.
Disassembly of the OIL-LOCK
TM
personnel.
10.5. EXTENDED PERIODS OF STANDSTILL
When gear units are at standstill for an extended period, the protective oil
film containing anti corrosion additives gradually disappears and the unpro-
tected internal parts become subject to corrosion. Adverse ambient condi-
tions such as humid, marine, tropical and chemically aggressive environ-
ments will accelerate the process.
A periodic visual inspection through the inspection cover is required.
Corrosion of the internals can be avoided by letting run the gear unit for a
few minutes every two weeks (depending on the ambient conditions) thus
allowing the formation of a new oil film.
Install a special breather (marked with the label shown below) to prevent
moisture from entering the gear unit.
If it is not possible to run the unit regularly and the risk for corrosion is immi-
nent, during extended periods of standstill the unit must be protected as
follows :
- an oil soluble concentrate including corrosion inhibitors which are active
both in the liquid and in the vapour phase has to be added. A 2% volume
concentration is considered to be normal. Consult your oil supplier about
lifetime, compatibility with the actual oil and about volume concentration.
- seal all gear unit openings (dipstick, breather etc.) hermetically .
®
inadvertent
switch-on
TM
SEAL
TM
oil seal.
seal. This oil seal is wear resistant and
seal should only be carried out by skilled
10.6. SERVICE AFTER SALES
For technical assistance or additional information, the HANSEN sales centres
are at your disposal. When you contact them, please specify the complete
type code and the manufacturing number mentioned on the gear unit's name-
plate.
10.7. REPAIRS
Any repair should only be carried out by skilled personnel.
Only original HANSEN spares should be used.
or
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