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Section 3 - Operation
Hydraulic Operation - Electro-hydraulic
F3-109
ON
N
N
Programming of the lever can be performed in either
sequence, extend/retract, retract/extend or one
sequence only, extend or retract. The program for the
individual lever (2) will remain the same even when
the engine is stopped and the ignition switch is in
the off position, as long as the programming switch
(1) remains in the program position as shown. The
maximum allowable time limit for any programmed
timed operation is two minutes.
Programming the lever with the engine and hydraulic
flow off is possible however accuracy of actual operation
will be marginal. Whenever a hydraulic application is
changed, the lever should be reprogrammed to suit
the new operation.
When operating in the timed programmed mode,
feathering of the hydraulic flow is possible by
moving the lever variably anywhere between the
neutral position and the fully opened position.
The timed operation sequence only begins once
the lever has been locked in the fully opened
position.
Should the lever be moved to the float position no
timed program is possible and the lever must be
returned back to neutral manually.
When the bottom of the switch is depressed, light (3)
in the switch will begin to flash. This is an indication
to the operator that a timed sequence must be
programmed into the EHR controller. The light will
continue to flash for ten seconds to allow time for the
operator to begin the programming sequence.
If a program is not started within this ten second
period, the controller will not accept any sequence and
the remote control lever (2) will not remain latched in
either the extend or retract positions.
To program the EHR system, first ensure that the
cylinder hydraulic hoses are properly connected to the
appropriate rear remote valve. Start the tractor engine
and ensure the EHR engagement switch is up/on.
Set the tractor engine RPM’s at the normal operating
speed in which the cylinder is to be operated. This is
important as the programming of the control levers is
based on a time interval to correspond to the time it
takes the cylinder ram to extend as well as retract. Any
change in engine rpm will have an effect on hydraulic
flow (GPM) and therefore the time it takes the cylinder
to extend and retract. The control lever timed program
always remains the same regardless of oil flow (GPM)
until reprogrammed. Therefore consistent operation is
required for the system to operate correctly. Using the
corresponding color coded programming switch (1)
depress the bottom of the switch so light (3) begins to
flash. While the light is flashing use control lever (2)
to extend the cylinder. As soon as the control lever is
activated the programming light will go on solid. Hold
the lever until the cylinder is extended to the desired
position and then return the lever to the neutral
position. When the lever is returned to the neutral
position the programming light will once again begin
to flash indicating that the retract phase of the cycle
needs to be programmed.
Next use lever (2) to retract the cylinder. As soon as
the lever is activated the programming light will go
on solid. Hold the lever until the cylinder is retracted
to the desired position and then return the lever to
the neutral position. After the second phase has been
completed the programming light will go out indicating
that the programming has been memorized. The lever
timed operation is now programmed for the extend
and retract operation of the cylinder.
Repeat the above sequence to program the remaining
levers.
1
2
3