Supplement Section 3: Governor System - Haybuster H-1130 Operating Instructions And Parts Reference

Supplement Section 3: Governor System

Electric motor speeds change very little between no load and full load conditions, necessitating a change of systems
from the engine driven and P.T.O. units.
A current transformer sensor sends a variable signal to the electronic governor as the current flow varies. The electronic
governor then sends a varying signal to a solenoid valve that diverts some oil from the tub drive and reduces tub
rotational speed. As the load increases on the motor (and increases the current flow), the tub slows down, reducing the
load on the rotor.
A 12 Volt DC power supply is provided with the H1130 Electric Tub Grinder to power the Electronic Governor system.
Refer to the grinder operator's manual for calibrating and operating the Electronic Governor system.
The electric governor includes the following:
Fuse Light
This light is on whenever the electric governor is receiving power.
Sensor Light
This light is on whenever the electronic governor is receiving a signal from the sensor.
Speed Lights
This provides a relative indication on how fast your tub should be turning.
Mode Switch
The mode switch has three positions.
Off - Turns the electric governor off, the tub will not rotate in the off Position.
Manual - Tub rotates at constant speed based on position of tub speed knob. Tub speed does not vary and is not
affected by load placed on motor. This mode should be used for maintenance only and not for grinding.
Auto - In auto mode the electronic governor decreases tub speed as the load on the motor increases. Maximum
tub rotational speed is set by the tub speed knob, tub speed decreases proportionally to the motor load and the
tub will stop rotating when maximum motor load is reached. The motor load is adjusted using the engine load
knob.
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