Suzuki 2000 Grand Vitara SQ416, Service Manual

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YH4
GRAND
VITARA
Pinion drive
lever
Plunger
Hold in coil
Pull in coil
Magnetic switch
To distributor
Magnetic switch
contacts
Starting motor
Pinion & over
running clutch
Ignition &
starter switch
IG
ST
BAT.
Battery
6G1-2 CRANKING SYSTEM
GENERAL DESCRIPTION
CRANKING CIRCUIT
The cranking circuit consists of the battery, starting motor, ignition switch, and related electrical wiring. These com-
ponents are connected electrically as shown below.
Only the starting motor will be covered in this section.
STARTING MOTOR
The starting motor consist of parts shown following page and has field coils mounted in starting motor yoke (frame).
The magnetic switch assembly and parts in the starting motor are enclosed in the housings so that they will be
protected against possible dirt and water splash.
In the circuit shown above, the magnetic (motor) switch coils are magnetized when the ignition switch is closed.
The resulting plunger and pinion drive lever movement causes the pinion to engage the engine flywheel gear and
the magnetic switch main contacts to close, and cranking takes place. When the engine starts, the pinion overrun-
ning clutch protects the armature from excessive speed until the switch is opened, at which time the return spring
causes the pinion to disengage.
NOTE:
Starting motor does not require lubrication except during overhaul.
Make sure to apply grease before assembly where so indicated “A” in the figure below.