
MAINTENANCE
MAINTENANCE
CUTTER UNIT
A. GENERAL
The INTERSTATER electrical circuit controls the flow of oil to the hydraulic motor on the cutter unit. The motor control valve relies on a solenoid to control the spool within the valve and direct the flow of oil.
When the mower ON/OFF switch is in the "ON" position, current flows to the solenoid which positions the spool to direct the oil flow from the pump to the motor. The oil then turns the motor which drives the cuttershaft.
When the mower ON/OFF switch is in the "OFF" position, the solenoid is not energized and oil pressure in the power circuit pushes the spool back allowing the oil to return to the reservoir from the valve. Without the flow of oil, the motor will no longer drive the cuttershaft.
B. OFF-ON SWITCH
The electrical circuit is connected to the tractor ignition switch. (See Electrical Schematic). The yellow wire connects to the switch accessory terminal and the red wire connects to the start terminal. A 6 amp
C. SAFETY CUT-OFF SWITCH
In the electrical circuit between the
D. SOLENOID OPERATED VALVE AT MOTOR
The electric solenoid valve is mounted in the hydraulic motor manifold block. The solenoid controls the spool within the valve. When the
GENERAL MAINTENANCE
Mowing is accomplished by a series of knives which rotate at high speed on a shaft. The shaft is driven by a hydraulic motor through a set of drive belts. Belt tension is maintained by a
The cutter unit is mounted to the lift frame by two mounting pins and held in place by a hydraulic cylinder. This cylinder is used to tilt the cutter unit to allow mowing on an angle and tilting to the vertical position for transporting. Another hydraulic cylinder is mounted to the lift frame and the lift cylinder support. This cylinder is used to raise the cutter unit via the lift frame.
The cutter unit rides on a large roller assembly. The position of this roller is adjustable and will determine the cutting height of the knives.
INTERSTATER 03/09 | Maintenance Section |
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