Chery S11 / Chery QQ. Manual — part 51

Chery QQ Service Manual

Charging System

The characteristics of the generator are that a solid-state regulator is installed in it, and

all the elements of the regulator are packed in a sealed case. The regulator, together

with the brush carrier assembly, is installed in the slip ring and frame. The given

voltage of generator can’t be modified.

The generator rotor bearing contains enough grease, so it doesn’t need regular

lubricating. The two brushes make the current flow to the exciting coil in the rotor by

means of two slip rings. Under normal circumstance, the brush will provide the

long-term maintenance-free service.

The stator winding is installed in the laminated sheetiron strip that constitutes the

frame of generator. The rectified current bridge connected to stator line set contains 6

diodes, which turns the alternating voltage in the stator into direct voltage on the

output terminal post of generator. The neutral point diode is used to turn the wave of

neutral point voltage into direct current so as to increase the output of generator.

The capacitor installed in the regulator assembly protects the diode from high voltage,

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Chery QQ Service Manual

Charging System

and restrains the radio noise.

. Trouble Shooting

Ⅱ

In order to avoid the damage to generator the following items should be observed:

Attention:

Never mix up the polarity of IG terminal post and L terminal post.

※

Avoid the short circuit between IG terminal post and L terminal post. The

※

two

terminal posts should be connected through charging indicator light.

※

Loads should always be connected between IG coil and E terminal post .

Please see section “Battery” for how to connect charger or assistant battery to the

※

battery of the car.

The charging system is in malfunction when any of the following situations emerge:

1. The fault indicator lamp comes up.

2. Start slowly, which indicates that the battery is not sufficiently charged.

3. Too much electrolyte is ejected from vent opening, which indicates that the battery

is overcharged.

The noise generator may result from the following factors: the head pulley gets loose;

construction bolt gets loose; the bearing is worn out or has some foreign material in it;

diode or stator doesn’t work well.

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Chery QQ Service Manual

Charging System

Fault indicator comes on

Symptom Possible

Reasons

Measures

While the ignition switch is

switched on and the engine is

stopped, the charging indicator

light doesn't light up.

●The fuse snaps.

●Something wrong with indicator

lamp in the cluster gauge.

●The connection gets loose.

●Something wrong with the

regulator of integrated circuit.

Check the fuse.

Check the cluster

gauge.

Tighten what is loose.

Replace regulator of

integrated circuit.

When the engine runs, the charging

indicator light doesn’t go out, and

the battery needs frequent

recharging.

●The driving belt is loose or worn

out.

●The battery cable gets loose, rusty

or worn out.

●Regulator of integrated circuit or

generator doesn’t work well.

●Bad connection

Adjust or replace the

driving belt.

Repair or replace

driving belt.

Repair or replace

cable.

Check charging

system.

Repair the connection.

Unchargable Battery

The slow starting may result from one or some of the following factors, even though

the indicator light works normally. Operate according to the following steps using

voltmeter and ampere meter.

1. Ensure that being uncharged is not due to keeping the accessory equipment

working.

2. Check the driving belt for degree of tightness.

3. If you doubt whether the battery works well, please see section “battery” for further

details.

4. Check the connection for fault. Check whether all the connections are firm and

clean, and check the cranking motor and ignition grounding cable.

5. Connect the voltmeter and ampere meter according to the following chart.

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Chery QQ Service Manual

Charging System

Voltmeter

Be connected between terminal post B of generator and the earthing.

Ammeter

Be connected between terminal post B of generator and the positive terminal of

battery.

6. Measure the voltage and current under each of the following circumstance.

Zero-load check

Make the engine run at idle speed to a speed of 2000r/min, and read the number in the

gauge.

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