3-85 Section 3 - Operation

Hydraulic Operation - Electro-hydraulic

Manual-Programmable Operation

Rocker switch (1) is used to select either the manual or programmed operation for each of the remote control levers..

Manual Operation

Manual operation is provided primarily for the operation of continuous flow applications, such as hydraulic motors.. To operate the remote EHR valves in manual mode, depress the top of rocker lever (1) as shown.. In the manual mode, the control lever (2) can be operated in the four positions, neutral, extend, retract and float.. When the control lever is left in either the extend, retract or float positions the control lever WILL NOT automatically return to the neutral position and shut the flow of oil off to the rear remotes regardless if the system reaches maximum pressure.. The control lever must MANUALLY be returned to neutral..

In manual operating mode there is no automatic return to neutral.. This allows for efficient operation of motors without nuisance shut downs when the remote valve inadvertently returns to neutral.. When operating hydraulic motors it is important to always use the RETRACT position to activate the motor and the FLOAT position to stop the motor.. Using the float position to stop the motor allows the motor to come to a gradual stop preventing any damage to the motor itself..

IMPORTANT: Never use the neutral position from the extend or retract position to stop a hydraulic motor. Sudden hydraulic lock up of the system can cause extensive damage to the motor.

IMPORTANT: Do not operate the control levers in the manual mode when operating remote cylinders. When the cylinder has reached the end of its stroke the control lever will not return to neutral and the hydraulic system relief valve will be activated. This will overheat the oil and may lead to failure of the hydraulic and driveline components.

Programmable Operation

Programmable operation is provided primarily for operation of hydraulic cylinders.. This feature allows the operator to program a time delay between when the control levers are activated and when they will automatically return to neutral.. To operate the remote EHR valves in programmed mode, depress the bottom of rocker switch (1) as shown..

ON

N

N

2

1

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