Troubleshooting; Maintenance And Repairs - TOYAMA TA3.5CS2 Manual De Instrucciones

2. Before stopping the machine, remove all loads from it and then turn it off. If the
generator is switched off with the loads connected to it, its residual magnetism may
be lost and remagnetize it before the next operation.
3. The field rheostat should be set to the short circuit position after the stop in order to
avoid reducing the voltage at the next star.

6. TROUBLESHOOTING

The following are possible causes of problems and suggestions for solutions:
1. Loss of residual magnetism:
Residual magnetism may be lost when the generator is stored and idle for a long period
of time or switched off while charging.
It will be necessary to magnetize the generator field with a 12v battery or dry the battery
while it is running. To do this, the positive terminal of the battery must be connected to
L1, and the negative terminal to L2. Connection of terminals inverted is STRICTLY
PROHIBITED.
2. The speed of rotation is too low to reach the nominal value.
Measure the speed of rotation with a tachometer and increase it properly.
3. Open circuit or short circuit occur in harmonic winding; thus, there is no harmonic third-
voltage output.
Check the winding connections or replace if necessary.
4. The rectifier element is perforated. There is no output D.C.
Replace the rectifier with a new one.
5. The field winding is shorted or open circuit.
Check the field winding connections or replace them.
6. Poor contact between the brush and the release ring
If the brush is worn and the spring pressure is not good, the brush should be replaced.
7. Loose connection or bad contact of the terminals.
Tighten the terminal nuts.
8. If the field rheostat is not set to the short circuit position, it will cause poor contact or
burn.
Check and adjust the rheostat to the short circuit position. If it is burnt, it should be
replaced with a new one.
If it is still difficult for the generator to increase the load when the above problems are
solved, you must apply a suitable load, which will help the equipment to increase the
voltage.

7. MAINTENANCE AND REPAIRS

GENERAL MAINTENANCE:
1. During storage, always leave the generator in a dry place. Whenever the generator is
placed on a dirt or concrete floor, it should be on a wooden base, and covered with a
layer of oil to avoid accumulation of moisture.
2. Precautionary measures should be taken to avoid dust, splashes of water, metal chips
or other foreign matter that may penetrate the generator.
3. To prevent clogging for heat to dissipate, do not leave fabrics or other materials on
the machine while it is running.
4. Care should be taken to avoid sustained overload.
5. If sparks begin to appear on the release rings or strange noises are produced during
generator operation, take corrective action immediately.
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