9
LEROY-SOMER
2011.03 / a
Installation and maintenance
LSA VS 40
ALTERNATORS
4779 en -
4 - SERVICING - MAINTENANCE
4.1 - Safety measures
Servicing or troubleshooting must be
carried out strictly in accordance with
instructions so as to avoid the risk of
accidents and to maintain the alternator
in its original state.
All such operations performed on the
alternator should be undertaken by
personnel trained in the commissioning,
servicing and maintenance of electrical
and mechanical components, who must
wear personal protective equipment
appropriate for mechanical and electrical
hazards.
Before any work is carried out on the
machine, ensure that it cannot be started by
a manual or automatic system and that you
have understood the operating principles of
the system.
Warning: After a period of operation,
some parts of the alternator can reach
high temperatures which may cause
burns.
4.2 - Routine maintenance
4.2.1 - Checks after start-up
After approximately 20 hours of operation,
check that all fixing screws on the machine
are still tight, plus the general state of the
machine and the various electrical
connections in the installation.
4.2.2 - Bearings
The bearings are permanently greased:
approximate life of the grease (depending
on use) = 20,000 hours or 3 years. Monitor
the temperature rise in the bearings, which
should not exceed 90°C. Should this value
be exceeded, the alternator must be stopped
and checks carried out.
4.2.3 - Electrical servicing
Commercially-available volatile degreasing
agents can be used.
Do
not
use:
trichlorethylene,
perchlorethylene, trichloroethane or any
alkaline products.
These operations must be performed at a
cleaning station, equipped with a
vacuum system that collects and flushes
out the products used.
The insulating components and the
impregnation system are not at risk of
damage from solvents. Avoid letting the
cleaning product run into the slots.
Apply the product with a brush, wiping away
the excess. Dry the winding with a dry cloth.
Allow it to evaporate before reassembling
the machine.
4.2.4 - Mechanical servicing
Cleaning the machine using water or a
high-pressure washer is strictly
prohibited. Any problems arising from
such treatment are not
covered by our warranty.
Degreasing: Use a brush and detergent
(suitable for paintwork).
Dusting: Use compressed air.
If the machine is fitted with air inlet and outlet
filters, the maintenance personnel should
clean them routinely at regular intervals. In
the case of dry dust, the filter can be cleaned
using compressed air and/or replaced if it is
clogged.
After cleaning the alternator, it is essential to
check the winding insulation (see sections
3.2 and 4.5).
4.3 - Fault detection
If, when commissioned, the alternator does
not work normally, the source of the
malfunction must be identified (see sections
4.4 and 4.5).
WARNING
WARNING
