Toro Groundsmaster 3400 Operator's Manual page 50

Problem
A cutting unit fails to start up.
The blades are rotating in wrong direction.
Possible Cause
1. The seat-sensor switch is not
functioning.
2. The hydraulic-fluid level is low.
3. The drive shaft is sheared.
4. The pressure-relief valve is jammed
open or wrongly set.
5. The cutting-unit blade(s) is jammed.
6. The cutting-unit control valve is
in the Off position caused by a
non-functioning control valve.
7. The cutting-unit control valve is in the
Off position caused by an electrical
fault.
1. The hoses are incorrectly connected
50
Corrective Action
1. Check the mechanical and electrical
operation of the switch.
2. Fill the hydraulic-fluid reservoir to the
correct level.
3. Check the motor and drive shafts and
replace them if necessary.
4. Have the relief valve cleaned and
pressure checked. Consult your
authorized dealer.
5. Clear the jam as needed.
6. Overhaul the control valve.
7. Have the electrical system checked.
1. Check the hydraulic circuit and
reconnect as needed.