4 - SERVICING - MAINTENANCE
All operations carried out on the
alternator should be undertaken by
qualified personnel, trained in the
commissioning, servicing and maintenance of
electrical and mechanical components.
4.1 - Safety measures
T
he machine should be inspected during
operation with all protective devices and
panels mounted.
4.2 - Normal maintenance
4.2.1 - Checks after startup
After approximately 20 hours in operation, check that all
the fixing screws on the machine are tight, verify the
state of the gearbox (for traces of oil) and the various
electrical connections in the installation.
4.2.2 - Ventilation circuit
- Take care that the suction grilles are not blocked by
foreign bodies (straw, feathers, wool etc.).
4.2.3 - Bearings
The bearings are greased for life (see the alternator
manual). A quick check of all the generator bearings can
be made by turning the shaft end by hand; the assembly
should turn freely without sticking.
4.2.4 - Gearbox
The gearbox oil should be emptied and replaced after 50
hours of operation, then every 500 hours and in all
cases, at least once each year. Quality of oil to be used :
synthetic oil MOBIL SHC 629 - PAO ISO, VG 150.
Quantity of oil for GT 41.1 , 42.1 : 1 litre
Quantity of oil for TF.1/ TM.1 27,38. : 1 litre
Quantity of oil for GT 44.1 : 2 litres
Quantity of oil for TF.1/ TM.1 70. : 2 litres
Before use, check the gearbox oil level using the oil level
screw (586), and top up if necessary.
Check that the gearbox temperature does not exceed
60
°
C above the ambient temperature. If this is exceeded,
the machine must be stopped and checked.
4.2.5 - Storage
- Do not clean the TRACTELEC with a water jet spray.
- Put away your machine in a dry, airtight place to avoid
condensation.
4.3 - Fault detection
If, on commissioning, the alternator does not work
normally, the source of the malfunction will need to be
identified.
In order to do this, check that :
- the protective devices are switched on,
- the connections conform to the diagrams in the
maintenance manuals included with the machine,
- the speed of the generator set is correct, see section
2.2 (use a frequency meter rather than a revolution
counter),
Repeat all operations set out in section 3.
7
MAINTENANCE
GEARLEC / TRACTELEC . 27, 38, 70 kVA
4.4 - Mechanical faults
See the alternator maintenance manual. For the gearbox, follow the troubleshooting guide below. Mechanical faults should be
noted and the machine disconnected from the mains.
4.5 - Electrical faults
See the alternator maintenance manual. For the generator, follow the troubleshooting guide below. Electrical faults should be
noted and the machine disconnected from the mains.
FAULT
ACTION
SOURCE OF FAULT
Excessive gearbox temperature rise
Check oil level
Lack of oil or incorrect oil level
Abnormal gearbox noise
Change the bearings
Faulty lubrication
Gearbox vibration
Stop the machine
Faulty universal joint coupling
FAULT
ACTION
SOURCE OF FAULT
Voltage too high or too low
Check the speed
Voltmeter faulty, speed incorrectly set
Check the alternator
See the alternator maintenance manual
No voltage
Check protective devices Circuit breaker, reversing switch, sockets
Check connections
Wire disconnected in the terminal box