Toro Groundsmaster 5900 Series Service Manual page 51

Groundsmaster ® 5900 & 5910
16227SL Rev B
Problem
Cutting deck(s) do not operate. Cutting decks
are able to raise and lower.
Possible Cause
The operator is lifting off the seat switch.
The cutting decks are not fully lowered.
High temperature of engine coolant or
hydraulic oil has disabled the cutting decks.
Coolant temperature sender or circuit wiring
is faulty.
The seat switch or circuit wiring is faulty.
The PTO switch or circuit wiring is faulty.
The cutting deck position switch or circuit
wiring is faulty.
The HIGH/LOW range traction speed switch or
circuit wiring is faulty.
Hydraulic PRV valve solenoid(s) or circuit
wiring to the affected deck(s) is faulty.
A hydraulic problem in the mow circuit exists
(see Chapter 5: Hydraulic System (page
The slave TEC is faulty.
Page 3–13
5–1)).
Troubleshooting: