Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
22
Setting the LED Brightness
1. The LED brightness can be adjusted to (4) different intensities. Locate the
“B” button on the bottom of the unit.
2. Continuously depress the “B” button until the desired brightness is
obtained.
Final Installation of the Control:
After the overspeed and the reset set points are correctly set, complete the
installation of the control, under the dash or on the engine housing, utilizing
the supplied bracket and hardware. Be sure the E.O.C. unit is located within
easy reach of the operator and is clearly visible.
Before Starting the Engine
With the vehicle turned OFF, all lights in the E.O.C. unit should be OFF.
Engaging the Power Take-Off
1. When the vehicle ignition is on and the E.O.C. unit is Off, the “On/Off”
button is illuminated white.
2. To turn On the E.O.C. unit, depress the “On/Off” button. You must hold
down the button for at least 0.5 seconds for the unit to activate. This helps
prevent unintentional P.T.O. engagement. Upon activation the “On/Off”
button will turn from white to red.
3. When the P.T.O. engages, the pressure switch will close and the red “P.T.O.
Engaged” will illuminate.
4. Should the operating R.P.M. reach the Overspeed set point, the yellow
“Over Speed” will illuminate, the P.T.O. will disengage and the red “P.T.O.
Engaged” will turn off due to the lack of a signal from the P.T.O. pressure
switch.
5. To re-engage the P.T.O. lower the vehicle R.P.M. to less than the lower set
point.
a. When the lower R.P.M. set point is reached, the yellow “Over Speed” will
turn off and the red backlight on the “On/Off” button will begin to flash if in
the “MANUAL Engagement Mode”. Depress the “On/Off” button for 0.5
second to re-engage the P.T.O.
Bulletin HY25-1650-M1/US
Operating Instructions
Owner’s Manual
Electronic Overspeed Control
Control Adjustment Instructions (Continued)
