Toro Groundsmaster 3500 30807 - Lift Circuit Problems

Groundsmaster 3500Hydraulic System Page 5 − 32
Lift Circuit Problems
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Problem
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Possible Cause
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Cutting units will not lift or lift slowly.
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Engine speed is too low.
Hydraulic tank oil level is low
(NOTE: Other hydraulic systems are affected as well).
Lift arm bushings are binding.
Implement relief valve (in steering control valve) is stuck open.
Lift cylinders leak internally.
Gear pump (P2) is worn or damaged
(NOTE: Steering and traction charge systems are affected as well).
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Cutting units raise, but will not stay
up as the traction units travels
between adjacent fairways or fields.
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Lift circuit hydraulic lines or fittings are leaking.
Lift control valve detent pin is worn or has failed.
Lift control valve check valve (in pilot valve) leaks.
Lift cylinders leak internally.
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Cutting units will not lower.
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Lift arm pivots are binding.
Lift control valve is faulty.
Lift cylinder(s) for affected cutting unit(s) is damaged.