in cylinder block and head are very small, so care must be taken not to block them especially those
holes between cylinder bores and the triangle area where injection nozzle located to prevent
trouble caused by overheating. Water pump is centrifugal type. If there is trouble in water seal,
water may leak out from overflowing hole, repair it in time. Alter long time operation, some
deposit shall be left in cooling system which can be removed by the following procedure:
Pour the mixture of 700-800g NaOH and 150g kerosene into water cooling system. Run the
engine for 5-10 minutes, then stop for 10 - 12 hours. Restart the engine for 10 – 15 minutes, drain
out the mixture and clean cooling system with clear water.
1 0. E LE CTR IC S YS TE M
Electric system consists of generator, starting motor, regulator, accumulator, oil pressure
sensor, glow plug and connecting wire etc. Engine normal voltage is 12v.
The negative pole of accumulator and generator should be earthed; positive and negative pole
can't be short circuit to prevent damage.
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