Greensmaster 3250--D Hydraulic SystemPage 4 -- 2 5
Mow Circuit Problems
Problem Possible Cause
Gear pump is noisy (cavitation). Oil level in reservoir is low (other hydraulic circuits affected as well).
Hydraulic pump suction line is restricted.
Hydraulic pump suction line has an air leak.
Reels will not turn. Solenoid valve S1R1 is stuck open or damaged.
An electrical problem exists (see Chapter 5 -- Electrical System).
FC1 logic valve in control manifold is stuck open.
PRV valve in control manifold is stuck closed.
Pilot piston in control manifold is stuck or damaged.
Front section of gear pump is worn or damaged (see Gear Pump
(Front Section) Flow Test).
Reel speed is erratic. Cutting unit problem exists (see Chapter 7 -- DPA Cutting Units).
Hydraulic manifold reel circuit cartridge is leaking or damaged.
Hydraulic manifold orifice is plugged.
Reel speed is low. Cutting unit problem exists (see Chapter 7 -- DPA Cutting Units).
Hydraulic manifold reel circuit cartridge is leaking or damaged.
Excessive internal wear in reel motor exists (see Reel Motor Case
Drain Flow Test).
Hydraulic
System
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