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Reelmaster 7000 Hydraulic SystemPage 4 -- 33
PTO Problems (Continued)
Problem Possible Cause
All cutting units operate slowly. Engine RPM is low.
Cutting unit motor is damaged.
Gear pump section (P1 or P2) is worn or damaged.
Cutting unit stops under load. Relief valve in mow control manifold is bypassing.
Cutting conditions (e.g. very tall or wet grass) exceed cutting unit
capacity.
Cutting unit motor relief valve is stuck or damaged.
Cutting unit motor has internal leakage (bypassing oil).
Gear pump section (P1 or P2) for affected cutting units is worn or
damaged.
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 (other hydraulic systems af-
fected as well).
Steering relief valve in steering control valve is stuck or damaged.
Flow divider (FD) in fan control manifold is faulty.
Steering cylinder leaks internally.
Steering control valve is worn or damaged.
Gear pump section (P3) is worn or damaged (NOTE: A worn or
damaged gear pump section (P3) will also affect the traction
(charge) and lift circuits).
Hydraulic
System