Haybuster H-1130 Operating Instructions And Parts Reference page 54

3. If tub is not turning, you are ready to proceed to the grinding section of this book. Remember the engine
load knob adjusts the load placed on the engine, and under normal conditions this will be the only
adjustment you will have to make.
IMPORTANT: Stay clear of all moving parts while calibrating the electro-hydraulic valve. The tub
will be rotating during this adjustment.
location of acorn nut
and jam nut
To calibrate the electro-hydraulic valve coil after following the three steps above, perform the following steps:
1. Shut down the machine using the normal shutdown procedure in this manual
2. Disconnect the wiring harness from the electro-hydraulic valve coil.
3. Remove the acorn nut from the end of the electro-hydraulic valve. This will reveal a jam nut and a
adjusting stud with a screwdriver slot.
4. Loosen the jam nut.
5. Turn the adjusting screw counterclockwise until it stops.
6. Lock the adjusting screw with the jam nut and replace the acorn nut. Reconnect the wiring harness to the
electro-hydraulic valve coil.
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electro-hydraulic valve
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