77
G60, G80, G100, G150, G200-SIIIA OM Manual
The machine is tested and set up at the factory. When
first used with no load, make sure that the drive speed is
correct and stable (see the nameplate). With the
regreasable bearing option, we recommend greasing the
bearings at the time of commissioning (See “Bearings”
on page 77). On application of the load, the machine
should achieve its rated speed and voltage; however, in
the event of abnormal operation, the machine setting can
be altered (follow the adjustment procedure (See
“SETTING UP” on page 77). If the machine still operates
incorrectly, the cause of the malfunction must be located
(See “MECHANICAL DEFECTS” on page 79).
SETTING UP
The various adjustments during tests must be made
by a qualified engineer. Ensure that the drive speed
specified on the nameplate is reached before
commencing adjustment. After operational testing,
replace all access panels or covers. The AVR is used
to make any adjustments to the machine.
SERVICING - MAINTENANCE
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
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 intervention 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.
ROUTINE MAINTENANCE
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.
Bearings
As standard, the alternator is fitted with permanently
greased bearings. As an option, they may be
regreasable. It is advisable to lubricate the alternator
during operation. Time intervals and quantity of grease
are given in the table below.
Lubrication intervals are given for grease type: LITHIUM -
standard - NLGI 3.
In the factory, the grease used for lubrication is: ESSO -
Unirex N3.
Before using another grease, check for compatibility with
the original one. Monitor the temperature rise in the
bearings (See “MECHANICAL DEFECTS” on page 79).
Electrical servicing
Commercially-available volatile degreasing agents can
be used.
CAUTION
Do not use: trichlorethylene, perchlorethylene,
trichloroethane or any alkaline products.
WARNING
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, sponging frequently to avoid accumulation in the
housing. Dry the winding with a dry cloth. Let any traces
evaporate before reassembling the machine.
DE / NDE BEARING
6316 C3
6315 C3
Quantity of grease
33g
30g
Regreasing interval
4000H
4500H
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