DLP-MT56(nº2) Maintenance of DC generation systems and power batteries
Maintenance of the three different DC voltage sources: Battery / Rectifier ( Dynamo
Touch on the different parts of the devices to get a description
In the next animation you will go along the different DC source devices and their basic maintenance.
Read a summary of the maintenance prcedures described in the previos animation.
DIRECT CURRENT VOLTAGE SOURCES BASIC MAINTENANCE
Battery
Check voltage on terminals. Around 12 volts means battery discharged; around 13 volts means battery charged.
After removing the plugs check the liquid level. It must cover completely the electrodes
Rectifier
Check voltage on the input connectors. It must be 230VAC.
Next, check voltage on the input voltage fuses. In case of malfunction, replace the fuses.
Next, check transfomer voltage output. Advisable to check it on the output fuses. Replace them if necessary.
Next, check voltage on the DC positive and negative bars of the diode bridge. In case of no voltage or low voltage replace the diodes.
Next, check voltage on the filter terminals. Better using an oscilloscope.
Finally check output voltage on output connectors and fuses. Replace fuses if necessary.
Dynamo
Check voltage on F terminal (Field)
Check voltage on D terminal (Armature)
Also check the contact brushes on rotor.
You must give ten consecutive right answers. If not, go over the animations and repeat the test.
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