Haybuster H-1130 Operating Instructions And Parts Reference page 77

ELECTRONIC GOVERNOR HARDWARE TEST
1. Power source: 12 volts DC
Red wire + positive pin A wiring harness
Black wire - Negative Pin B wiring harness
2. Test output voltage to valve DC
Red wire + positive pin D wiring harness.
Black wire - negative pin E. wiring harness.
Test the electronic governor with power supplied to the governor control box and the mode switch set to the tub
position. The grinder does not need to be running for this test. Disconnect the wiring harness at the valve. With a
voltmeter set for 12 volts DC, connect the red lead of the voltmeter to the red lead of the wiring harness and black
lead to the black wire. Turn the tub limit knob until the left speed light (turtle) is on. The voltmeter should read
approximately 3 volts. Turn the tub limit knob clockwise. As more speed lights light up, the voltage should increase.
Turn the knob until the right speed light (Rabbit) is lit. The volt meter should now read a minimum of 9 volts.
3. Output voltage of sensor AC
red wire - Pin C wiring harness
Black wire - Pin B wiring harness.
Set the sensor gap to 3/32".
Remove the wiring harness from the electronic governor.
With the grinder at operating speed. Set volt meter to AC volts, connect leads to pins B and C. The volt meter should
read at least 2 to 3 volts AC.
ELECTRONIC GOVERNOR VOLT-OHM READINGS
ELECTROHYDRAULIC VALVE COIL TEST
H - 1 1 3 0 T U B G R I N D E R O P E R A T I N G I N S T R U C T I O N S
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