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Reelmaster 7000−D Hydraulic SystemPage 5 − 33

Mow Circuit Problems

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Problem

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Possible Cause

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None of the cutting units will oper-

ate.

NOTE: To engage the mow circuit,

the seat must be occupied, the cut-

ting units(s) must be fully lowered,

the traction speed must be in the

LOW (mow) position and the reel

enable/disable switch must be ON.

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Cutting units are not fully lowered to ground.

Reel enable/disable switch is not in engaged position.

Operator seat is unoccupied.

Traction system is in HI speed (transport).

Engine coolant temperature is above 221F (105C) preventing cut-

ting units from engaging (Fault 01 should be displayed on InfoCen-

ter).

Cutting unit position sensor is out of adjustment or faulty.

Electrical problem exists that prevents mow control manifold sole-

noid valve operation (see Chapter 6 − Electrical System).

Gear pump sections that supply mow circuits are damaged.

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One cutting unit will not operate.

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Circuit pressure to the affected reel motor is low.

Cutting unit problem exists (see Chapter 9 − DPA Cutting units).

Spline on affected reel motor (or adapter) is damaged.

Reel motor relief valve is stuck or damaged.

Reel motor is damaged.

NOTE: If appropriate, transfer a suspected damaged motor to anoth-

er cutting unit. If problem follows the motor, motor needs repair or

replacement.

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Several cutting units will not operate.

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Electrical problem exists that prevents mow control manifold sole-

noid valve operation (see Chapter 6 − Electrical System).

Cutting units are not fully lowered to ground.

Solenoid cartridge valve (SP1 or SP2 in mow control manifold) for

affected cutting units is faulty.

Logic cartridge valve (LC1 or LC2 in mow control manifold) is stuck

or damaged.

Gear pump section (P2 or P3) is worn or damaged.

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All cutting units operate slowly.

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Engine RPM is low.

Gear pump section (P2 or P3) is worn or damaged.

Hydraulic

System

Brand	Toro
Model	03721
Category	Lawn Mower
Language	English

Toro 03721 Service Manual

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