Pto Circuit Problems - Toro Groundsmaster 360 Service Manual

PTO Circuit Problems

Problem
Cutting deck blades will not turn.
Cutting deck blade(s) turn too slowly.
PTO does not stop when disengaged.
Hydraulic System
Possible Causes
Cutting deck problem exists (see Chapter 7 -- Cutting Deck).
An electrical problem exists that prevents PTO from engaging (see
Chapter 5 -- Electrical System).
The engine coolant temperature is excessive.
Transmission solenoid valve is stuck.
Transmission charge pump is damaged (traction charge circuit also
affected).
Transmission pressure valve is faulty.
Engine speed is too low.
Cutting deck problem exists (see Chapter 7 -- Cutting Deck).
Transmission PTO clutch is worn or damaged.
An electrical problem exists that prevents PTO from dis--engaging (see
Chapter 5 -- Electrical System).
Transmission solenoid valve is stuck or damaged.
Transmission PTO brake friction plates are worn or damaged.
Machine is equipped with attachment that includes an over--running
clutch.
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