Manual

Engine Maintenance And Servicing Manual
【18】 Engine electrical system.
The electrical system includes battery, alternator, starter, breakerless distributor, ignition controller, spark plug,
high-power ignition coil, high pressure assembly, water temperature sensor, oil pressure switch, electric fan,
thermo switch, and idle speed solenoid valve of carburetor.
1. Alternator.
Output voltage: 14V
Rated output current: 90A
B+Output D+ to the charging indicator filling-in bit
——Battery is not permitted to be connected to alternator with
the polarities reversed.
——Insure that the ground wire between the alternator and
chassis are tightly connected.
——It is forbidden to ground the power supply wire while the
alternator is under working condition, the wiring harness will be
burn away.
——While the alternator is under working condition, it is not
allowed to disconnect the alternator connector B from battery, or
the voltage caused will damage the transistor or other elements.
——To test the diodes, the voltage applied should be not beyond
40V.
——During servicing the alternator, apply enough No.2 lithium
base grease into the alternator sealing bearing for the operation
period before the next service.
——The electronic regulator needs no service and may only be
replaced if damaged.
——The alternator type is: JFZ1913—4 and JFZ1813—ZB.
——The alternator bracket for vehicle is quite different from the
one for independent assembly. The former is applied on the engine
equipped with A/C compressor.
——The left figure is the alternator bracket for the vehicle.
——The corresponding alternators are not exchangeable.
Alternator assembly
Fig. 118
Alternator
assembly
Fig.119
The alternator
bracket
Fig. 120
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