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Multi Pro 5800Hydraulic System Page 5 − 24

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One of the spray booms does not

raise or lower.

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Affected spray boom pivot is worn, binding or damaged.

Boom lift control manifold solenoid coil (S2 or S3) or circuit wiring

for affected boom has electrical problem (see Chapter 5 − Electrical

System).

Boom lift control manifold solenoid valve for affected boom is stick-

ing or damaged (left boom = S2, right boom = S3, upper coil = raise

boom, lower coil = lower boom).

Boom lift control manifold pilot operated check valve for affected

boom (PC1 or PC2) is sticking or damaged.

Boom lift control manifold orifice for affected boom is plugged or

damaged.

Lift cylinder is worn or damaged.

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Neither of the spray booms will raise

or lower.

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Oil level in reservoir is low.

Boom lift control manifold solenoid coil S1 or circuit wiring has elec-

trical problem (see Chapter 5 − Electrical System).

Boom lift control manifold solenoid valve S1 is sticking or damaged.

Check valve in steering control valve is sticking, worn or damaged.

Relief valve in gear pump is faulty.

Rear gear pump section is worn or damaged (steering circuit af-

fected as well).

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One of the spray booms will not re-

main in the raised position.

NOTE: Lift cylinders cannot provide

an absolutely perfect seal. A spray

boom may eventually lower during

storage.

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Boom lift control manifold pilot operated check valve for affected

boom (PC1 or PC2) is sticking or damaged.

Cartridge valve seals are leaking in boom lift control manifold.

Lift cylinder for affected boom leaks internally.

Hydraulic hoses to lift cylinder for affected boom are incorrectly

installed.

Brand	Toro
Model	Multi Pro 5800
Category	Paint Sprayer
Language	English

Toro Multi Pro 5800 Service Manual

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