Duratech 2009 - Calibration of the Electronic Governor; Adjusting the Tubs Rotation Speed; Raising the Tub

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2009 DURATECH TUB GRINDER OPERATING INSTRUCTIONS

With proper calibration, the engine will only load down to its optimum horsepower RPM, and the tub’s rotation speed

will be varied proportionally to keep the engine at this RPM.

Tub (Manual) mode

In tub (manual) mode, the electronic governor performs as a simple tub speed control. In this mode the tub speed is

constant and it will not change to match varying load conditions.

3.10 Calibration of the electronic governor

To calibrate the electronic governor, perform the following steps:

1. Begin calibration procedure with 2009 DURATECH TUB GRINDER Tub Grinder completely shutdown.

Place the MODE switch in the OFF position and the RANGE switch in the H‑High position. Rotate the

TUB SPEED 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 wet clutch is disengaged. Inspect machine to verify that all personnel are clear of the machine.

3. Start engine 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 engine to between 900 & 1100 RPM.

Engage the rotor and tub drive then throttle up to 1800 RPM. 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 6.1

“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 engine down and the tub should stop rotating, return the engine to 1800 RPM and the tub should

start to rotate.

If the tub will not rotate, read section 6.1 “Troubleshooting the electronic governor system” in this manual.

3.11 Adjusting the tub’s rotation speed

Tub rotation is controlled by two components or remote radio. The tub is started, stopped and reversed by a switch on

the control panel or the remote radio control and the tub’s rotation speed is controlled by the tub limit knob (tub speed

knob) on the electronic governor.

3.12 Raising the tub

NOTE: If the grinder becomes plugged or if the rotor requires maintenance, do not raise the platform

with the tub full of material.

( REV. 08-04 )