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Groundsmaster 4000--D/4010--D Hydraulic SystemPage 4 -- 37
Steering Circuit Problems
Problem Possible Cause
Steering inoperative or sluggish Steering components (e.g. tie rods, steering cylinder ends) are
worn or binding.
Steering cylinder is binding.
Oil level in hydraulic reservoir is low (NOTE: Other hydraulic sys-
tems are affected as well).
Steering relief valve (RV1) in combination manifold is stuck or dam-
aged.
The pressure compensator valve (EC) in combination manifold is
stuck or damaged.
Steering cylinder leaks internally.
Steering control valve is worn or damaged.
Gear pump section is worn or damaged (NOTE: A worn or dam -
aged gear pump section will also affect the lift/lower, engine cooling
fan motor a nd traction charge circuits).
Hydraulic
System