Suzuki SY413 Service Manual page 3359

6H-10 CHARGING SYSTEM
Ammeter between generator (B)
terminal and battery (+) terminal.
1. Generator
2. Ammeter
3. Voltmeter
4. Battery
5. Load
6. Switch
UNDERCHARGED BATTERY
This condition, as evidenced by slow cranking can be caused by
one or more of the following conditions even though indicator lamp
may be operating normal.
Following procedure also applies to cars with voltmeter and amme-
ter.
1) Make sure that undercharged condition has not been caused by
accessories left on for extended period of time.
2) Check drive belt for proper tension.
3) If battery defect is suspected, refer to Battery section.
4) Inspect wiring for defects. Check all connections for tightness
and cleanliness, battery cable connections at battery, starter
and ignition ground cable.
5) Connect voltmeter and ammeter as shown in left figure.
Voltmeter
Set between generator B terminal and ground.
Ammeter
Set between generator B terminal and battery (+) terminal.
NOTE:
Use fully charged battery.
6) Measure current and voltage.
Voltmeter between
generator (B) termi-
nal and ground.
No-load Check
1) Run engine from idling up to 2,000 rpm and read meters.
NOTE:
Turn off switches of all accessories (wiper, heater etc.).
NOTE:
Consideration should be taken that voltage will differ
somewhat with regulator case temperature as shown.
Standard current
Standard voltage
10A
14.3 – 15.1 V
at 20_C (68_F)