14
INSTALLATION AND MAINTENANCE
LSA 46.2 / 47.1 - 4 POLE
ALTERNATORS
SERVICING - MAINTENANCE
Ref. 2981 GB - 4.33/b - 07.02
LEROY-SOMER
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
machine in its original condition.
All such operations performed on the alternator
should be undertaken by personnel trained in the
commissioning, servicing and maintenance of
electrical and mechanical components.
Before any intervention on the machine, ensure that it cannot
be started by a manual or automatic system and that you
understand how the operating system works.
4.2 - Regular 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
condition of the machine and the various electrical
connections in the installation.
4.2.2 - Cooling circuit
It is advisable to check that circulation of air is not reduced by
partial blocking of the air intake and outlet grilles : mud, fibre,
grease, etc.
4.2.3 - Bearings
The bearings are greasable (option). It is advisable to
lubricate the machine during operation. Time intervals and
quantity of grease are given in the table below.
Lubrication intervals are given for a grease of grade
LITHIUM - standard - NLGI 3.
The factory lubrication is performed with grease :
SHELL - ALVANIA G3.
Before using another grease, check for compatibility with the
original one. Monitor the temperature rise in the bearings,
which should not exceed 50°C above the ambient
temperature. Should this value be exceeded, the machine
must be stopped and checks carried out.
4.2.4 - Electrical servicing
Cleaning product for the windings
Do not use : trichlorethylene, perchlorethylene,
trichloroethane or any alkaline products.
Certain strictly defined pure volatile degreasing products can
be used, such as :
- Normal petrol (without additives)
- Toluene (slightly toxic); inflammable
- Benzene (or benzine, toxic); inflammable
- Ciclohexare (non toxic); inflammable
Cleaning of the stator, rotor, exciter and diode bridge
The insulating components and the impregnation system are
not at risk of damage from solvents (see the above list of
authorised products).
Avoid letting the cleaning product run into the slots. Apply the
product with a brush, sponging frequently to avoid
accumulation in the housing. Dry the winding with a dry cloth.
Let any traces evaporate before reassembling the machine.
4.2.5 - 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 an air gun.
If filters have been added to the machine after manufacture
and do not have thermal protection, the service personnel
should clean the air filters periodically and systematically, as
often as is necessary (every day in very dusty atmospheres).
Cleaning can be performed using water for dry dust or in a
bath containing soap or detergent in the case of greasy dust.
Petrol or chlorethylene can also be used.
After cleaning the alternator, it is essential to check the
winding insulation (see sections 3.2. and 4.8.).
DE bearing - LSA 46.2
6316 C3
Quantity of grease
33 g
Lubrication interval
4000 H
NDE bearing - LSA 46.2/ 47.1
6315 C3
Quantity of grease
30 g
Lubrication interval
4500 H
DE bearing - LSA 47.1
6318 C3
Quantity of grease
41 g
Lubrication interval
3500 H
WARNING
ARNING
WARNING
ARNING
