Toro Greensmaster 3250-D 04383 Service Manual page 67

Problem
No traction exists in either direction.
Wheel motor will not turn.
Wheel motor will not hold load in
neutral.
Reel motor drive pump is noisy (ca-
vitation).
Reels will not turn.
Reel speed is erratic.
Reel speed is low.
Greensmaster 3250--D
Possible Cause
Parking brake is not released.
Oil level in reservoir is low.
Hydrostat by--pass valve is open.
Charge pressure is low (see Charge Pressure Relief Valve (R4)
Pressure Test).
Traction pump (P3) or wheel motor(s) are worn or damaged (see
Traction Drive Hydrostat (P3) Flow and Wheel Motor Efficiency
Tests).
Brakes are binding.
Key on wheel motor shaft is sheared or missing.
Wheel motor is damaged.
Make up fluid from charge pump is not available.
Hydrostat ball check valves are damaged.
Reservoir oil level is low.
Hydraulic pump suction line is restricted.
Hydraulic pump suction line has an air leak.
Solenoid valve S1 is stuck open.
An electrical problem exists (see Chapter 5 -- Electrical System).
Relief valve R1 is stuck open (see Mow Circuit Relief Valve (R1)
Pressure Test).
LC1 logic valve (when Backlap Kit is installed) is stuck open.
Gear pump P1 is damaged (see Gear Pump (P1) Flow Test).
Cutting Unit problem exists (see Cutting Unit Chapter).
Hydraulic manifold reel circuit cartridge is leaking or damaged.
Hydraulic manifold orifice is plugged.
Cutting Unit problem exists (see Cutting Unit Chapter).
Hydraulic manifold reel circuit cartridge is leaking or damaged.
Excessive internal wear in reel motor exists (see Reel Motor Case
Drain Flow Test).
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Hydraulic System (Rev. I)