Toro Groundsmaster 300 Series Service Manual page 226

Problem
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Steering Wheel Lash (Free Movement)
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Excessive Heat in Hydraulic System
Troubleshooting
Possible Causes
Steering wheel loose on column.
Steering linkage loose or worn.
Steering valve loose at mounting.
Air in hydraulic system.
Internal leakage in hydraulic cylinder.
Undersized replacement hose or tube line.
Kinked or severely bent hose or tube line.
Restricted oil cooler.
Restricted recentering of steering valve control valve
plate.
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Groundsmaster 300 Series