Mecc Alte ECO-ECP Série Manuel D'instruction Et De Maintenance page 18

ECO - ECP MANUAL
ENGLISH
MAINTENANCE
c) Mechanical checks of fastening bolts and, in particu-
lar, of electric connections.
We recommend a regular check of all fastening bolts, which must
be perfectly tightened up. Special attention should be paid to all
electric connections; this inspection must be carried out in the com-
plete absence of voltage. To choose the correct tightening wren-
ches suitable for the different sizes of the bolts, see generator ma-
nual.
d) Internal and external cleaning of the generator.
For the external cleaning of the generator, you can use compres-
sed air. The use of hydrocleaners and detergent fluids is strictly
forbidden. The standard protection degree of the generator is
IP21; therefore, use of fluids could cause anomalies or even short-
circuits.
Extraordinary maintenance operations can be summed up as fol-
lows:
a) Maintenance and replacement (if necessary) of bearings
b) Cleaning of air filters (if available)
c) Cleaning of windings
d) Replacement of diode bridge
e) Replacement of exciter
f) Replacement of voltage regulator
g) Check of residual voltage
a) Maintenance and replacement (if necessary) of bearings.
During the assembling phase, all bearings are greased with SKF
LGMT2 grease, or similar.
All generators, except the ECO40, the ECO43N and ECO46 ver-
sions, are equipped with sealed bearings; for this kind of bearing, no
maintenance is required for the total operating time (estimated:
30.000 hours).
Bearings of alternator versions 40, 43 and 46 must be greased on a
regular basis by means of a pressure grease cup (see bearings
chart).
During the operating time, checks to detect presence of either ove-
rheating, or noises, must be carried out on a regular basis.
If the bearing is worn off, it can cause excessive vibrations. In such
a case, the bearing must be removed, examined, and if necessary,
replaced.
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ECO-ECP iMANUAL December 2013 Rev. 03