3.2 - Checks before first use
3.2.1 - Mechanical tests
Before starting for the first time, check that :
- the fixing bolts on the feet are locked securely,
- the coupling is correct, and the universal joint link is
aligned as closely as possible with the tractor power
take-off shaft,
- cooling air must enter and exit freely through the
machine vents,
- the grilles and protective housing are properly in place,
- the breather plug pin on the gearbox has been
removed,
- the bearings have been inspected and the oil level of
the gearbox is correct (see section 4.2).
3.2.2 - Electrical tests
3.2.2.1 - Insulation measurement and dielectric tests
See the maintenance manual for the machine concerned
ref : 1383.
DO NOT under any circumstances start
using an alternator, whether it is new or
not, if the insulation is lower than 1 megohm for the
stator and 100,000 ohms for the other windings.
3.2.2.2 - Checking connections
Check that :
- the TRACTELEC / GEARLEC is earthed (earthing rod),
- the residual circuit breaker conforms to the legislation
covering protection of personnel in force in the country of
use, and has been properly installed on the alternator
power output as near to the alternator as possible. (In
this case, disconnect the blue wire connecting the
neutral on the R 791 interference suppression module).
- the machine has been connected to the mains supply
according to the connection diagram (see section 1.3).
- the connection of cables and any links conforms to the
diagram included with the machine,
- no protection devices have tripped,
- the equipment to be supplied has its own switchgear or
starter system for motors.
The earth must meet electrical standards
and safety rules in force in that country.
The GEARLEC version must also be fitted
with a control and protection unit
enclosing all electrical accessories.
WARNING
3.3 - Setting
Your machine is preset and tested in the factory.
3.4 - Commissioning (environment /safety)
Before starting up, check that all
preparations and safety procedures
already mentioned in this manual have
been observed.
Select a site which is sheltered from dripping water and
dust, and is free from humidity.
- Ensure that the switch is in the "TRACTELEC" position
(standby).
- After engaging the power take-off shaft, accelerate
gradually, keeping an eye on the voltmeter. The voltage
should be 420V (50Hz) or 500V (60Hz).
- Start up a motor and check its direction of rotation. If
necessary, reverse two phase wires on the
"TRACTELEC" switch to obtain the opposite direction of
rotation.
- Switch on the various motors, start them in decreasing
order of power, then start the other equipment to be
used, and monitor the voltage reading on the voltmeter.
This should be approximately 400V at 50 Hz or 480V at
60 Hz. If not, increase the tractor speed. If the voltage
does not increase sufficiently, the "TRACTELEC" or
tractor power is insufficient.
- In the case of a star-delta starter, wait for a clear motor
startup before switching to delta position. The voltage
reading on the voltmeter should return to approximately
400V at 50 Hz or 480V at 60 Hz. If not, increase the
tractor speed.
- To break the "TRACTELEC" general power supply,
switch off the electrical circuit and set the reversing
switch to the mains "NORMAL" position. Stop the
tractor motor.
6
MAINTENANCE
GEARLEC / TRACTELEC . 27, 38, 70 kVA