2000 SUZUKI SWIFT charging

CHARGING SYSTEM 6H-7
UNDERCHARGED BATTERY
This condition, as evidenced by slow cranking or indicator clear
with red dot can be caused by one or more of the following condi-
tions even though indicator lamp may be operating normal.
Following procedure also applies to cars with voltmeter and
ammeter.
Make sure that undercharged condition has not been caused
by accessories left on for extended period of time.
Check drive belt for proper tension.
If battery defect is suspected, refer to BATTERY section.
Inspect wiring for defects. Check all connections for tight-
ness and cleanliness, battery cable connections at battery,
starting motor and ignition ground cable.
NO-LOAD CHECK
1) Connect voltmeter and ammeter as shown in left figure.
2) Run engine from idling up to 2,000 rpm with all accessories
turned off and read meters.
If voltage is higher than standard value, check ground of
brushes.
If brushes are not grounded, replace IC regulator.
If voltage is lower than standard value, proceed to following
check.
Specification for undercharged battery (No-load check)
Current: 10 A
Voltage: 14.2 – 14.8 V (at 25°C, 77°F) NOTE:
Use fully charged battery.
1. Generator
2. Ammeter (between generator (B) terminal and battery (+) terminal)
3. Voltmeter (between generator (B) terminal and ground)
4. Battery
5. Load
6. Switch
NOTE:
Consideration should be taken that voltage will differ
somewhat with regulator case temperature as shown in
left figure.
A: Regulated voltage (V)
B: Heatsink temperature (°C)
16.0
15.5
14.2 15.3
14.8
14.2
13.314.8
15.0
14.5
14.0
13.5
13.0
-30 0 25 135
[A]
[B]

6H-8 CHARGING SYSTEM
3) Ground F terminal and start engine, then measure voltage at
B terminal as shown in left figure.
Voltage is higher than standard value
It is considered that generator itself is good but IC regulator
has been damaged, replace IC regulator.
Voltage is lower than standard value
Generator itself has problem, check the generator.
LOAD CHECK
1) Run engine at 2,000 rpm and turn on head light and heater
motor.
2) Measure current and if it is less than 20 A repair or replace
generator.
OVERCHARGED BATTERY
1) To determine battery condition, refer to Battery section.
2) If obvious overcharge condition exists as evidenced by
excessive spewing of electrolyte, measure generator B ter-
minal voltage at engine 2000 rpm.
3) If measured voltage is higher than upper limit value, disas-
semble generator.
4) Check ground of brushes. If brushes are not grounded,
replace IC regulator. Then check field coil for grounds and
shorts.
A: Regulated voltage (V)
B: Heatsink temperature (°C)
16.0
15.5
14.2 15.3
14.8
14.2
13.314.8
15.0
14.5
14.0
13.5
13.0
-30 0 25 135
[A]
[B]

CHARGING SYSTEM 6H-9
ON-VEHICLE SERVICE
BATTERY
JUMP STARTING IN CASE OF EMERGENCY
WITH AUXILIARY (BOOSTER) BATTERY
Both booster and discharged battery should be treated carefully when using jumper cables. Follow procedure
outlined below, being careful not to cause sparks.
1) Set parking brake and place automatic transmission in PARK (NEUTRAL on manual transmission). Turn off
ignition, turn off lights and all other electrical loads.
2) Check electrolyte level. If it is below low level line, add distilled water.
3) Attach end of one jumper cable to positive terminal of booster battery and the other end of the same cable to
positive terminal of discharged battery. (Use 12-volt battery only to jump start engine).
4) Attach one end of the remaining negative cable to negative terminal of booster battery, and the other end to
a solid engine ground (such as exhaust manifold) at least 45 cm (18 in.) away from battery of vehicle being
started.
5) Start engine of vehicle with booster battery and turn off electrical accessories. Then Start engine of the vehi-
cle with discharged battery.
6) Disconnect jumper cables in the exact reverse order.
WITH CHARGING EQUIPMENT
CAUTION:
If vehicle is manual transmission model and has a catalytic converter, do not push or tow it to start.
Damage to its emission system and/or to other parts may result.
WARNING:
Departure from these conditions or procedure described below could result in:
–Serious personal injury (particularly to eyes) or property damage from such causes as battery
explosion, battery acid, or electrical burns.
–Damage to electronic components of either vehicle.
Remove rings, watches, and other jewelry. Wear approved eye protection.
Be careful so that metal tools or jumper cables do not contact positive battery terminal (or metal in
contact with it) and any other metal on vehicle, because a short circuit could occur.
WARNING:
Do not connect negative cable directly to negative terminal of dead battery.
CAUTION:
When jump starting engine with charging equipment, be sure equipment used is 12-volt and negative
ground. Do not use 24-volt charging equipment. Using such equipment can cause serious damage to
electrical system or electronic parts.

6H-10 CHARGING SYSTEM
DISMOUNTING
1) Disconnect negative cable (1).
2) Disconnect positive cable (2).
3) Remove retainer (3).
4) Remove battery (4).
HANDLING
When handling battery, following safety precautions should be
followed:
Hydrogen gas is produced by battery. A flame or spark near
battery may cause the gas to ignite.
Battery fluid is highly acidic. Avoid spilling on clothing or
other fabric. Any spilled electrolyte should be flushed with
large quantity of water and cleaned immediately.
REMOUNTING
1) Reverse removal procedure.
2) Torque battery cables to specification.
Tightening torque
Body ground bolt (a): 8.0 N·m (0.8 kg-m, 6.0 lb-ft)
GENERATOR
GENERATOR BELT
Refer to “WATER PUMP BELT” in Section 6B “ENGINE COOL-
ING”.
5. Body ground bolt
6. Nut
NOTE:
Check to be sure that ground cable has enough clear-
ance to hood panel by terminal.

CHARGING SYSTEM 6H-11
DISMOUNTING AND REMOUNTING
DISASSEMBLY AND REASSEMBLY
1.“B” terminal wire 3. Generator bolt 5. Splash cover (Right) Tightening torque
2.“B” terminal nut 4. Generator belt 6. Generator
1. Pulley nut 7. Bearing retainer 13. Seal plate 19. Brush holder cover
2. Pulley 8. Rotor 14. Rectifier 20. Rear end cover
3. Drive end frame 9. End housing bearing 15. Insulator 21. Terminal plate
4. Stator 10. Bearing cover 16. Regulator
5. Stud bolt 11. Wave washer 17. Brush
6. Drive end bearing 12. Rear end frame 18. Brush holder

6H-12 CHARGING SYSTEM
INSPECTION
ROTOR
1) Using ohmmeter, check for continuity between slip rings of
rotor. If there is no continuity, replace rotor.
Standard resistance between slip rings of rotor
: 2.7 – 3.1
Ω
ΩΩ Ω at 20°C (68°F)
2) Using ohmmeter, check that there is no continuity between
slip ring and rotor. If there is continuity, replace rotor.
3) Check slip rings for roughness or scoring. If rough or scored,
replace rotor.
Using a vernier caliper, measure the slip ring diameter.
If the diameter is less than minimum, replace the rotor.
Slip ring diameter
Standard: 14.2 – 14.4 mm (0.557 – 0.567 in.)
Limit: 12.8 mm (0.504 in.)
STATOR
1) Using an ohmmeter, check all leads for continuity. If there is
no continuity, replace stator.

CHARGING SYSTEM 6H-13
2) Using ohmmeter, check that there is no continuity between
coil leads and stator core. If there is continuity, replace sta-
tor.
BRUSH AND BRUSH HOLDER
Check each brush for wear by measuring its length as shown. If
brush is found worn down to service limit, replace brush.
Exposed brush length “a”
Standard: 10.5 mm (0.41 in.)
Limit: 1.5 mm (0.06 in.)
RECTIFIER
1) Using an ohmmeter, connect one tester probe to the “B” ter-
minal (1) and the other to each rectifier terminal (2).
2) Reverse the polarity of the tester probes and repeat step 1).
3) Check that one shows continuity and the other shows no
continuity.
If there is continuity, replace the rectifier.
4) Using an ohmmeter, connect one tester probe to each nega-
tive terminal (1) and the other to each rectifier terminal (2).
5) Reverse the polarity of the tester probes and repeat step 4).
6) Check that one shows continuity and the other shows no
continuity.
If there is continuity, replace the rectifier.

6H-14 CHARGING SYSTEM
SPECIFICATION
BATTERY
GENERATOR
TIGHTENING TORQUE SPECIFICATION
NOTE:
The battery used in each vehicle is one of the following two types, depending on specification.
Battery type 38B20L 55B24L
Rated capacity AH/5HR, 12 Volts 28 38
Electrolyte L (US/Imp. pt) 2.1 (4.44/3.70) 2.8 (5.92/4.93)
Electrolyte S.G. 1.28 when fully charged at 20°C (68°F)
Type 75 A type
Rated voltage 12 V
Nominal output 75 A
Permissible max. speed 18000 r/min.
No-load speed 1020 r/min (rpm)
Setting voltage 14.2 to 14.8 V
Exposed brush length Standard: 10.5 mm (0.41 in.)
Limit: 1.5 mm (0.06 in.)
Permissible ambient temperature–30 to 90°C (–22 to 194°F)
Polarity Negative ground
Rotation Clockwise viewed from pulley side
Fastening partTightening torque
Nm kg-m lb-ft
Body ground bolt 8 0.8 6.0
Generator bolts 23 2.3 16.5
“B” terminal inner nut 4.2 0.42 3.0
“B” terminal outer nut 8 0.8 6.0
Pulley nut 111 11.1 80.5
Rear end frame nuts 4.5 0.45 3.5
Rear end cover nuts 4.5 0.45 3.5
Rectifier “B” bolt 3.9 0.39 3.0
Stator stud bolts 8.8 0.88 6.5
Drive end bearing plate screws 2.6 0.26 2.0
Rectifier screws 2.0 0.20 1.5
Regulator and brush holder screws 2.0 0.20 1.5
Terminal plate bolt 3.8 0.38 3.0