V. OPERATING INFORMATION

Hydraulic System Continued

Detasseling Heads

The hydraulic motors on the detasseling heads (fig. 5.30) are controlled by a master switch (fig. 5.29, item 1) and individually turned on and off with a row of switches m ounted on the control panel to the right of the operator’s seat (fig. 5.29, item 2). To open the solenoid on any of the motor control valves (fig. 5.28) which activates the motors, flip the corresponding switch(es) away from the operator. To shut any or all motors off, flip the corresponding switch(es) toward the operator.

Each set of motors is controlled with an adjustable needle valve (fig. 5.28, item 1) that restricts hydraulic flow to the hydraulic motors so they don’t over-speed and become damaged.

This valve is preset at the factory and requires no adjustment. Activate hydraulic motors while engine speed is at an idle, then increase engine RPM to operating speed.