Groundsmaster 4000--DHydraulic System (Rev. B) Page 4 -- 22
Problem Possible Causes
Front cutting unit drops too fast or
too slow.
Flow control valve is not adjusted properly.
Cutting units will not lower. Lift arm pivots are binding.
Lift cylinder is damaged.
Counterbalance pressure is excessive.
Lift/lower control valve is worn or damaged.
Pilot valve in lift/lower manifold is damaged or sticking.
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