Calibration Of The Electronic Governor; Adjusting The Tub's Rotation Speed - Haybuster H-1130 Operating Instructions And Parts Reference

2.10 Calibration of the electronic governor

To calibrate the electronic governor, perform the following steps:
1. Begin calibration procedure with H-1130 Tub Grinder completely shutdown. Place the MODE switch in
the OFF position and the RANGE switch in the H-High position. Rotate the TUB LIMIT KNOB fully
clockwise toward the rabbit position. Turn the ENGINE LOAD KNOB fully clockwise, and switch the
MODE switch to Engine (Auto) Position.
2. Verify that tub rotation lever is in neutral. Inspect machine to verify that all personnel are clear of the
machine.
3. Start tractor and run the grinder at about 1/2 throttle to allow the hydraulic system to warm up before
calibrating the RCB93 Electronic Governor.
4. When the system has reached operating temperature, throttle the tractor to 1000-1200 engine RPM.
Engage the tub drive and throttle up to PTO speed. The FUSE light and the SENSOR light should come
on. The tub should not be rotating at this time. If the tub is rotating, read section 5.1 "Troubleshooting the
electronic governor system" in this manual.
5. Slowly rotate the ENGINE LOAD KNOB counter-clockwise until the tub just begins to move. The tub
should begin to rotate. If it does not begin to rotate, switch the range switch to M-Medium or L-Low and
repeat as necessary.
TEST: Throttle the tractor's engine down and the tub should stop rotating, return the tractor's engine to PTO RPM and
the tub should start to rotate.
If the tub will not rotate, read section 4.1 "Troubleshooting the electronic governor system" in this manual.

2.11 Adjusting the tub's rotation speed

Tub rotation is controlled by two components . The tub is started, stopped and reversed by the tub rotation control
valve, and the tub's rotation speed is controlled by the tub limit knob (tub speed knob) on the electronic governor.
34 H - 1 1 3 0 T U B G R I N D E R
tub limit knob (tub speed knob) on the
electronic governor.
tub rotation control valve
O P E R A T I N G I N S T R U C T I O N S