Kubota GR1600EC2, Workshop Manual, Page: 214 / 241

6-S15
GR1600EC2, WSM ELECTRICAL SYSTEM
(9) Timer Relay
Timer Relay Connector Voltage
1. Disconnect the connector from the timer relay after turning the
main switch off.
2. Measure the voltage with a voltmeter across the connector
terminal 4 and chassis.
3. Turn the main switch on, and measure the voltage across the
connector terminal 3 and chassis.
4. If these voltages differ from the battery voltage, the wiring
harness or main switch is faulty.
W1016544
Test of Timer Relay
1. Remove the timer relay from the machine.
2. Connect jumper leads across the battery positive terminal and
the timer relay terminal 3, and across the battery positive terminal
and the timer relay terminal 4.
3. Connect jumper leads across the battery negative terminal and
the timer relay terminal 2, and across the battery negative
terminal and the bulb terminal.
4. Connect jumper lead across the timer relay terminal 1 and the
bulb terminal.
5. The bulb lights up when disconnecting a jumper lead from the
terminal 3 arid goes off 6 to 13 seconds late, the timer relay is
proper.
W1016721
(10) Charging System
No-load Dynamo Output
1. Disconnect the lead wires from the dynamo.
2. Start the engine and operate the dynamo at the rated speed.
3. Measure the output voltage with a volt meter.
4. If the measurement is not within the specified values, replace the
dynamo.
W1048417
Voltage
Connector
terminal 4 - chassis
Approx. battery voltage
Connector
terminal 3 - chassis
Approx. battery voltage
(1) Timer Relay
(1) Timer Relay
(2) Load (Lamp) (3) Battery (12V)
No-load output Factory spec. AC 20 V or more
KiSC issued 07, 2006 A