Taylor-Dunn G0-010-00 Service And Replacement Parts Manual page 354

ELECTRICAL
TEST 1: Resistance Value of Each Stator Leg
1. Measure the resistance value of each of the three
stator legs: Y1 to Y2, Y1 to Y3, and Y2 to Y3.
2. Each test should measure: 0.15 Ω ± 20%
CONNECT
TEST METER
LEADS TO:
Battery Charge
Y1 to Y2
Coil
Battery Charge
Y1 to Y3
Coil
Battery Charge
Y2 to Y3
Coil
NOTICE
If there are any significant variations in ohm readings
between the three legs it is an indication that one of the
three stator legs maybe weak or failed.
TEST 2: Resistance Value of Each Stator Leg to
Ground
3. Measure the resistance value of each of the stator
legs to ground: Y1 to Ground, Y2 to Ground, Y3 to
Ground.
11.22
4. Each test should measure: Open Line (OL)
Any measurement other than Infinity (open) will indicate
TEST 3: Measure AC Voltage Output of Each
Stator Leg at Charging RPM
5. Set the selector dial to measure AC Voltage.
6. Start the engine and let it idle.
7. While holding the engine at a specified RPM,
separately measure the voltage across each 'leg' of
the stator by connecting the meter leads to the wires
OHMS
leading from the alternator (Y1 to Y2, Y1 to Y3, Y2 to
READING
Y3).
8. Refer to the following table for approximate AC
Less than 1 Ω
Voltage readings according to RPM. Test each leg at
the specified RPM in the table.
Less than 1 Ω
9. Example: The alternator voltage output reading
Less than 1 Ω
should be approximately 18 VAC at 1300 RPM
between each 'leg'.
If one or more of the stator leg output AC voltage varies
significantly from the specified value, the stator may
CONNECT
TEST METER
LEADS TO:
Battery Charge Y1, Y2, or Y3
Coil to Ground
NOTICE
a failed or shorted stator leg.
NOTICE
need to be replaced.
AC VOLTAGE (VAC)
RPM READING
READING
1300 21 VAC ± 25 %
3000 49 VAC ± 25 %
5000 80 VAC ± 25 %
9929758 R01 - 2019 TAYLOR-DUNN G-100 Service Manual
OHMS
READING
Open Line
(Infinity)
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