MAINTENANCE MANUAL OF GW4D20/GW4D20B TURBOCHARGED DIESEL ENGINES
468
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
Section II Starting System
1. General
1.1 Starting System
The starting system consists of storage battery, starter, starting switch, ignition lock, starter relay and
other components which are connected according to Fig. 11-2-1.
Fig. 11-2-1 Starting system
Fig. 11-2-2 Starter
The starter is installed on the cylinder body on the
left side of the engine.
Starter technical parameters:
Voltage: 12 V.
Output power: 2 kW.
Rotation direction: clockwise (view from the drive
gears).
1.2 Starter
The magnetic gear-reduction starter is adopted in
the starting system, and the starter shaft is used as
pinion shaft as well. When the starting switch is on,
the magnetic switch contact point is turned on so
as to drive the armature to rotate. At the same time
the movable core is attracted, and the shifter lever
drives the pinion forward to engage with gear ring.
Then the gear ring rotates to start the engine.
When the engine is started and the starting switch
Starter relay
Starter
Starting switch
Holding coil
Contact point
―50‖ terminal
―30‖
terminal
Storage battery
Magnetic switch
Attraction coil
Pinion clutch
Cylinder body
