Problem
Possible Cause
Corrective Action
1. The seat-sensor switch is
malfunctioning.
1. Check the mechanical and electrical
operation of the switch and ensure the
operator weight has been set correctly.
2. The hydraulic-fluid level is low.
2. Fill the hydraulic-fluid reservoir to the
correct level.
3. A driveshaft is sheared.
3. Check the motor and flail rotor
driveshafts and replace them if
necessary.
4. The pressure relief valve is jammed
open or set wrong.
4. Have the relief valve pressure checked.
Consult your authorized dealer.
5. A flail rotor is jammed.
5. Clear any jams as necessary.
6. A cutting unit control valve is in the
‘off’ position, caused by malfunctioning
control valve.
6. Overhaul the control valve.
7. A cutting unit control valve is in the ‘off’
position, caused by an electrical fault.
7. Have the electrical system checked for
an electrical fault.
The cutting units fail to start-up when
lowered into work.
8. The lift-arm-proximity switch is
incorrectly set.
8. Check and adjust the proximity switch.
The flail rotors rotate in the wrong
direction.
1. The hoses are connected wrong.
1. Check the hydraulic circuit and connect
the hoses correctly.
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