Cutting Deck Operating Problems - Toro GroundsmasterR 4300-D Service Manual

Cutting Deck Operating Problems

Problem
The cutting decks remain engaged, but should not,
with no operator in the seat.
Cutting decks run, but should not, when raised. Cutting
decks shut off with PTO switch.
Cutting decks run, but should not, when raised. Cutting
decks do not shut off with PTO switch.
None of the cutting decks operate. Cutting decks are
able to raise and lower.
NOTE: For cutting deck operation, operator seat needs
to be occupied, mow speed limiter needs to be in mow
position, decks need to be fully lowered and PTO switch
needs to be engaged.
Cutting decks run, but should not, when lowered with
joystick and PTO switch in the OFF position.
The front cutting decks do not operate. Rear cutting
decks operate. Cutting decks are able to raise and
lower.
Groundsmaster 4300--D
Possible Causes
Seat switch or circuit wiring is faulty.
TEC controller is faulty.
A hydraulic problem in cutting deck circuit exists (see
Troubleshooting section of Chapter 4 - Hydraulic
System).
TEC controller is faulty.
PTO switch or circuit wiring is faulty.
A hydraulic problem in cutting deck circuit exists (see
Troubleshooting section of Chapter 4 - Hydraulic
System).
TEC controller is faulty.
PTO switch is in the OFF position.
High coolant temperature has disabled cutting decks.
Seat switch or circuit wiring is faulty.
PTO switch or circuit wiring is faulty.
Mow/transport switch or circuit wiring is faulty.
Temperature sender or circuit wiring is faulty.
Circuit wiring to deck control manifold solenoids may
be faulty.
A hydraulic problem in cutting deck circuit exists (see
Troubleshooting section of Chapter 4 - Hydraulic
System).
TEC controller is faulty.
The PTO switch or circuit wiring is faulty.
TEC controller is faulty.
Deck control manifold PRV2 solenoid coil or circuit
wiring is faulty.
A hydraulic problem in front mow circuit exists (see
Troubleshooting section of Chapter 4 - Hydraulic
System).
TEC controller is faulty.
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