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Tightness of the belt can be judged appropriate, if the belt between fan and generator pulley is
pressed down by hand a distance of 10～20 mm. It is possible to make adjustment, after loosening
the bolts on generator bracket and support.
Electrical system consists of starting motor, charging generator, starting pushbutton and
meters etc. Wiring of electrical system is shown as Fig.17.
1-Storage battery
4-Ammeter
1. Storage battery
Model 6-Q-150 battery can be used. A new battery, without being re-charged, needs to be
charged. (This diesel engine, when delivered, does not have a storage battery in it).
When the engine is running, it is necessary to give attention to the value of charging current.
If it is near "0", it indicates that the battery has fully been charged, and the charging circuit can be
turned off.
When measuring the electrolyte of battery, metal rod is prohibited to be used, to prevent it
from reacting chemically with the electrolyte. Only when distilled water is not available, can the
boiled water, rainwater and snow-water after precipitated to remove impurities be added. Use of
well water and river water is strictly prohibited. In winter, it is necessary to add water when the
engine is running and the battery is being charged, to avoid freezing caused by uneven and
un-uniform mixture of water and electrolyte.
When in daily use, the plug-cover of battery should be screwed and tightened, venting hole
X. Electrical system
2-Starting motor
5-Ignition switch
Fig. 17 Electrical system schematic diagram
36
3-Electric wire part
6-Regulator
7-Charging generator
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