Toro T4240 Operator's Manual page 50

Problem
The cutting units fail to start up when
lowered into work.
The cylinders rotate in the wrong direction.
Possible Cause
1. The seat sensor switch is
malfunctioning.
2. The hydraulic-oil level is low.
3. A driveshaft is sheared.
4. The pressure relief valve is jammed
open or wrongly set.
5. A cutting cylinder is jammed.
6. A cutting cylinder is tight on the bottom
blade.
7. A cutting unit control valve is in the O
position, caused by malfunctioning
control valve.
8. A cutting unit control valve is in the O
position, caused by an electrical fault.
9. The diverter valve is jammed.
1. The hoses are incorrectly connected .
2. The cutting unit drive switch is
incorrectly connected.
50
Corrective Action
1. Check the mechanical and electrical
operation of the switch.
2. Fill the hydraulic-oil reservoir to the
correct level.
3. Check the motor and cylinder
driveshafts and replace them if
necessary.
4. Have the relief valve pressure checked.
Consult your authorized dealer.
5. Clear any jams as necessary.
6. Adjust the setting.
7. Overhaul the control valve.
FF
8. Have the electrical system checked for
FF
an electrical fault.
9. Free off and lubricate or replace the
diverter valve as necessary.
1. Check the hydraulic circuit and connect
the hoses correctly.
2. Check the electrical connections of the
switch.