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HD-8 SERIES V
O P E R A T I N G I N S T R U C T I O N S
3.34 Electro-hydraulic valve calibration
3.34 Electro-hydraulic valve calibration
3.34 Electro-hydraulic valve calibration
3.34 Electro-hydraulic valve calibration
3.34 Electro-hydraulic valve calibration
IMPORTANT:
Stay clear of all moving parts while calibrating the electro-hydraulic valve.
The tub
will be rotating during this adjustment.
To calibrate the electro-hydraulic valve coil perform the following steps:
1.
To access the electro-hydraulic valve, Start the engine, raise the platform, and install the platform safety
stop. The proceedure for raising the tub can be found in section 3.13 on page 31 of this manual.
2.
Remove the rubber end cap from the end of the electro-hydraulic valve. This will reveal a jam nut and an
adjusting stud with a screwdriver slot.
3.
Disconnect the wiring harness from the electro-hydraulic valve coil, and loosen the jam nut.
4.
Engage the tub drive in the forward direction. Throttle the engine up to a fast idle.
figure 3.10
electro-hydraulic valve
5.
If the tub is not rotating, turn the adjusting screw clockwise until it bottoms out. Turn the adjusting screw
counterclockwise until the tub stops. The electro-hydraulic valve is now calibrated.
6.
Lock the adjusting screw with the jam nut and replace the rubber cap. Shut down the machine using the
normal shutdown procedure in this manual. Reconnect the wiring harness to the electro-hydraulic valve
coil.
IMPORTANT! - DO NOT ENGAGE THE ROTOR CLUTCH
!