Geely Diagnosis Flow. Manual part — 82

325

Over-high or over-low recharging
voltage from generator

Loosing or over worn-out of generator belt

Replace generator
belt

Loosing or bad contact of fuse of generator

Change fuse

Malfunction of generator regulator

Replace generator
regulator

Malfunction of generator rectifier

Sulfurization or short-circuit of internal battery
plate

Replace generator rectifier or generator
assembly

Replace battery

Normal

Sulfurization
or
short-circuit

Normal

Normal

Normal

Abnormal

Abnormal

Abnormal

Abnormal

326

No. 233 Generator can’t work

Malfunction

Cause

Solution

Malfunction of generator
belt

Check generator belt for tension and wearing condition and if there is 10 mm of
flexibility in the middle of belt under 50 N pressure; if the belt is over-loosing or over
worn-out, the generator belt should be adjusted or replaced;

Malfunction of fuse

Check fuse of generator (60A) for break; if it’s broken, the generator fuse should be
replaced;

Malfunction of generator
regulator

Check if generator regulator is able to adjust generated voltage; if it’s abnormal,
regulator or generator assembly should be replaced;

1. Check forward rectifying: Connect one probe of Ohm meter to positive pole of
rectifying diode, and the other probe to every end of rectifiers; changeover the
polarity of probes and repeat above procedure; the Ohm meter will show
conducting for one and cutoff for the other; if the conductivity is different from above
description, the rectifier or generator assembly should be replaced;

Malfunction of generator
rectifier

2. Check backward rectifying: Connect one probe of Ohm meter to negative pole of
rectifying diode, and the other probe to every end of rectifiers; changeover the
polarity of probes and repeat above procedure; the Ohm meter will show
conducting for one and cutoff for the other; if the conductivity is different from above
description, the rectifier or generator assembly should be replaced.

Malfunction of stator coil of
generator

1. Place multi-meter to Rx1 grade and connect two probes to any two leads of
armature windings; they should be connected; if the resistance is infinite, it
indicates that the break results in failure of generator, thus the coil or generator
assembly should be replaced; 2. Check windings with bond strap: Place
multi-meter to Rx1 grade and connect one probe to any lead of armature winding
and the other probe to core of stator; if the resistance is infinite, the insulation of
armature windings is good, otherwise the coil or generator assembly should be
replaced;

Malfunction of rotator coil
of generator

1. Check resistance of rotator windings: Place multi-meter to Rx1 grade and
connect two slip rings; the standard resistance should be 2.7 – 3.1 Ohm; if the
resistance is different from standard, the rotator or generator assembly should be
replaced; 2. Check flexibility of rotator: The radial swinging standard should be less
than 0.5 mm; if it's abnormal, the generator assembly should be replaced;

Malfunction of internal
brush for engine

The length standard of exposed brush measured by vernier caliper should be 10.5
mm and the minimum length should be 1.5 mm; if the length is smaller than the
minimum length, the brush or generator assembly should be replaced;

Generator can’t
work

Malfunction of harness

Check the harness of generator for short-circuit or poor contact, if it's abnormal, the
generator harness should be checked and repaired;

327

Generator can’t
work

Loosing or over worn-out of generator belt

Adjust or replace generator belt

Broken fuse of generator

Replace fuse

Generator regulator in poor operation

Replace starter
assembly

Open circuit or short-circuit of stator coil of generator

Replace generator
assembly

Damage of internal brush or rotator for generator

Replace generator
assembly

Generator rectifier in poor operation

Replace rectifier or generator

Check and repair
generator loop

Loosing or break of wire for connectors of generator

328

No. 234 Charging indicator of generator is always on or not on

Malfunction Cause

Solution

Malfunction of
generator belt

Check generator belt for tension and wearing condition and if there is 10 mm of flexibility
at middle of belt under 50 N pressure; if the belt is over-loosing or over worn-out, the
generator belt should be adjusted or replaced;

Malfunction of
generator regulator

Check if generator regulator is able to adjust generated voltage; if it’s abnormal,
regulator or generator assembly should be replaced;

1. Check forward rectifying: Connect one probe of Ohm meter to positive pole of
rectifying diode, and the other probe to every end of rectifiers; changeover the polarity of
probes and repeat above procedure; the Ohm meter will show conducting for one and
cutoff for the other; if the conductivity is different from above description, the rectifier or
generator assembly should be replaced.

Malfunction of
generator rectifier

2. Check backward rectifying: Connect one probe of Ohm meter to negative pole of
rectifying diode, and the other probe to every end of rectifiers; changeover the polarity of
probes and repeat above procedure; the Ohm meter will show conducting for one and
cutoff for the other; if the conductivity is different from above description, the rectifier or
generator assembly should be replaced;

Malfunction of
generator fuse

Check positive pole fuse of generator for conducting; if it’s broken, the generator fuse
should be replaced;

Malfunction of
combined instrument

Check indicating diode of combined instrument for mixed connection or breakdown; if
it’s abnormal, the combined instrument should be replaced;

Malfunction of harness Check charging loop for good contact; if it’s abnormal, check or repair the loop;

Charging
indicator of
generator is
always on or not
on

Malfunction of battery Replace battery assembly;

Replace generator
belt

Loosing or over worn-out of generator belt

Check or repair charging indicator
loop of generator

Short-circuit or open circuit of charging indicator loop of
generator

Replace generator
regulator

Generator regulator in poor operation

Change fuse

Broken fuse of generator

Replace rectifier or generator
assembly

Generator rectifier in poor operation

Replace
combined

Short-circuit or open circuit of internal charging indicator of
combined instrument

Charging indicator of generator is always on
or not on

Abnormal

Normal

Normal

Normal

Normal

Normal

Abnormal

Abnormal

Abnormal

Broken

Worn-out

Normal

Normal