Kubota WSM J Series Workshop Manual page 155

J SERIES, WSM
(C) Dynamo and Regulator [Z482, D722]
E01940EN16300
(D) Alternator [D1005, V1305]
(Precaution when checking)
• If disconnect the B terminal or coupler, engine will stop by emergency device.
• Do not directory connect the L terminal with the B terminal. Otherwise the three exciting diodes may be damaged.
When connecting the L terminal, insert a 3.4 W lamp between the L and B terminals.
• Always use a full charged battery.
• Be careful to observe the proper polarity of the battery. Never install the battery in the wrong direction.
• Never disconnect the battery while the alternator is operating.
NOTE

• Check the alternator with alternator test bench.
Dynamo No-load voltage
1. Disconnect the lead wire from the dynamo.
2. Start the engine and measure the voltage generated by the
dynamo.
3. Measure the output voltage with a voltmeter. If the measurement
is not within the factory specifications, replace the dynamo.
No load dynamo voltage Factory spec.
Continuity across Regulator's Terminals
1. Measure with a circuit tester according to the list below.
NOTE

• For this test, use only analog meter and do not use a high
voltage tester such as a M  meter.
• This check sheet shows the results of the test conducted by
using the "Sanwa-made testers SP-10 and SP-15D" (analog
meter).
• Use of other testers than those above may show different
measured results.  shall be used as the unit for the
measuring range.
• The judgment should be as below table.
"ON" if the indicator moves, otherwise "OFF".
(1) Blue
(2) Blue
(3) Red
Tester +
terminal
Tester
Blue
- terminal
Blue
Blue OFF
Red OFF
Cord
colors
Yellow ON
Green OFF
Black OFF
S-109
AC14V or more at
-1
86.7 (5200 rpm)
S
(4) Yellow
(5) Green
(6) Black
Cord colors
Blue Red Yellow Green
OFF ON OFF OFF
ON OFF OFF
OFF OFF OFF
ON ON OFF
OFF OFF OFF
OFF OFF OFF OFF
KiSC issued 10, 2016 A
ENGINE
W1145708
Black
OFF
OFF
OFF
ON
OFF
W1145899