48
1 1 5 0 / 1 1 5 5 H A Y B U S T E R 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
figure 3.4
electronic governor system
3.34 Electro‑hydraulic valve coil test
See the figure 3.5 for the location of the electro‑hydraulic valve coil.
This test requires an accurate ohm meter. Disconnect the wiring harness leads at the electro-hydraulic valve coil.
Check resistance of valve coil leads at the terminals. The resistance should be between 38 to 44 ohms. If the values are
not within this range, replace the electro-hydraulic valve coil.
MANUAL OVERRIDE
NOTE: If there is an electrical failure with the machine, it may still be able to grind. Switch the electronic governor
off. Remove the rubber end cap and loosen the jam nut on the electro-hydraulic valve. Start the machine and engage
the tub drive.
figure 3.5
location of the
electro-hydraulic
valve
electro-hydraulic
valve
location of adjusting
nut and jam nut found
under rubber cap end
location of adjusting
nut and jam nut found
under rubber cap end
SN UP TO 0166
SN 0167 AND UP