■ Sprinkler Assembly

PROBLEM

POSSIBLE CAUSE – CORRECTIVE ACTION

SPRINKLER WON'T ROTATE

(a)

Debris wedged between stator and turbine.

 

 

– Remove obstruction.

 

(b)

Drive assembly defective.

 

 

– Replace drive assembly.

 

(c)

Nozzle base assembly defective.

HEAD STICKS UP

 

– Replace nozzle base assembly.

(a)

Dirt in riser assembly.

 

 

– Flush out. (See Flushing Procedure on page 11.)

 

(b)

Damaged or missing return spring.

 

 

– Replace.

 

(c)

Damaged riser.

POOR DISTRIBUTION PATTERN

 

– Replace.

(a)

Nozzle plugged with debris.

 

 

– Clean or replace nozzle.

 

(b)

Nozzle orifice damaged.

 

 

– Replace nozzle.

 

(c)

Low operating pressure.

■ Main Valve

 

– Determine why system overloaded and correct.

 

 

PROBLEM

POSSIBLE CAUSE – CORRECTIVE ACTION

VALVE WON'T CLOSE

(a)

Continuous 24 VAC to sprinkler.

(Electric )

 

– Check controller for voltage source.

 

(b)

Leak in pilot valve assembly.

 

 

– Replace pilot valve assembly.

 

(c)

Plugged supply screen on piston.

 

 

– Clean or replace screen.

 

(d)

Manual control selector on pilot valve assembly turned to "ON" position.

 

 

– Turn to "AUTO" position.

 

(e)

Plunger movement restricted.

 

 

– Inspect and clean or replace.

 

(f)

Valve cylinder misaligned with sprinkler body communication tube.

 

 

– Remove valve assembly and install correctly.

 

(g)

Foreign object keeping valve from seating.

 

 

– Remove, clean and check valve for damage. Replace if necessary.

 

(h)

Damaged piston seal or piston assembly.

 

 

– Replace valve assembly.

VALVE WON'T CLOSE

(a)

Leak in control tubing.

(Hydraulic)

 

– Isolate and repair.

 

(b)

Pilot valve leak in controller.

 

 

– Confirm by observing constant dripping from discharge line of controller.

 

 

Refer to Controller Service Manual.

 

(c)

Valve cylinder misaligned with sprinkler body communication tube.

 

 

– Remove valve assembly and install correctly.

 

(d)

Foreign object keeping valve from seating.

 

 

– Remove, clean and check valve for damage. Replace if necessary.

 

(e)

Damaged piston seal or piston assembly.

 

 

– Replace valve assembly.

VALVE WON'T OPEN

(a)

Control (field) wires severed.

(Electric)

 

– Isolate and repair.

 

(b)

No power to controller.

 

 

– Establish controller power.

 

(c)

No power from controller to solenoid.

 

 

– Check for blown fuse and replace.

 

(d)

Manual control selector on pilot valve assembly turned to "OFF" position.

 

 

– Turn to "AUTO" position.

 

(e)

Pilot valve solenoid inoperative.

 

 

– Remove and replace.

 

(f)

Pilot valve plunger movement restricted.

 

 

– Inspect, clean and/or replace.

 

(g)

No supply from main valve.

– Debris in control tube, main valve assembly and/or communication passages in body. Flush thoroughly.

5

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Page 5
Image 5
Toro 830S, 850S specifications Sprinkler Assembly, Main Valve
Page 4 Page 6

830S, 850S specifications

The Toro 850S and 830S are cutting-edge ride-on mowers designed for commercial landscaping professionals who demand durability, efficiency, and optimal performance. Both models boast an array of advanced features and technologies that provide unparalleled mowing capabilities while ensuring ease of operation and maintenance.

The Toro 850S is known for its robust engine performance, powered by a high-torque, gasoline engine designed to deliver outstanding cutting power. Its 60-inch or 72-inch cutting deck options allow for a broad mowing path, enhancing productivity by covering large areas quickly. Enhanced with Toro’s patented Smart Speed Technology, the operator can easily adjust the speed without compromising cutting performance, allowing for precise control when navigating tight spaces or around obstacles.

Similarly, the Toro 830S offers impressive performance with its own high-powered engine while providing a slightly more compact design. The 830S features a 52-inch cutting deck, which is excellent for smaller properties or areas with constrained access. Its agility and responsiveness make it a favorite among landscapers who need to manage intricate landscapes without sacrificing speed or cutting quality.

Both models integrate Toro’s patented Zero Turn technology, enabling the mowers to pivot within their own footprint, significantly reducing the time spent maneuvering around obstacles. This makes them particularly effective in complex environments, where traditional mowers may struggle.

User ergonomics are a top priority, with both mowers featuring comfortable seating and intuitive control layouts. This attention to operator comfort minimizes fatigue during long hours of operation, allowing landscapers to maximize productivity without compromising personal well-being.

Fuel efficiency is another area where the Toro 850S and 830S shine. Their engines are engineered for reduced emissions and optimized fuel consumption, making them environmentally friendly while also cutting operation costs over time.

Maintenance is simplified through a modular design that allows for easy access to vital components. This means that regular upkeep can be done quickly, ensuring that both the 850S and 830S remain in peak operating condition with minimal downtime.

In summary, the Toro 850S and 830S mowers are exceptional choices for professionals needing reliable, powerful, and efficient tools for their landscaping needs. Their combination of innovative technologies, operator-friendly features, and robust construction ensures that they stand out in the competitive market of commercial ride-on mowers.
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