Toro 835S, 855S manual Servicing Main Valve

Page 8

Servicing Main Valve

WARNING

IF THE VALVE SNAP RING IS DIFFICULT TO REMOVE, RESIDUAL WATER PRESSURE MAY BE REMAINING IN THE SYSTEM. TO PREVENT POSSIBLE SERIOUS INJURY DUE TO VALVE BEING EJECTED UPWARD UNDER PRESSURE, CONFIRM THE FOLLOWING CONDITIONS EXIST PRIOR TO REMOVING THE SNAP RING AND VALVE.

A.WATER SUPPLY TO SPRINKLER IS SHUT OFF AT SOURCE.

B.ALL PRESSURE IS BLED FROM SYSTEM, INCLUDING CONTROL TUBES.

C.AC POWER IS DISCONNECTED AT SOURCE.

1.See Warning above. To remove valve assembly, squeeze snap ring ears together with snap ring pliers (P/N 995-100) and remove snap ring from sprinkler body. See Figure 16.

2.Use valve removal tool P/N 995-08 for 835S or 995-09 for 855S to remove valve assembly from base of sprinkler body. Valve removal tool is inserted into sprinkler body and pushed through valve ribs. A slight twist will catch tool under ribs enabling valve removal by pulling straight up and out. See Figure 17.

Note: If valve removal tool is not available, use snap ring pliers to grasp rib of valve cylinder assembly and pull up and out of sprinkler body.

3.Reinstall valve assembly using valve insertion tool P/N 995-76 for 835S or 995-101 for 855S as follows:

Load snap ring onto insertion tool carrier with stepped side against carrier as shown in Figure 18. While holding snap ring in compressed position, slide retainer clip in to hold snap ring ears

Load valve assembly on carrier as shown.

Figure 16

Figure 17

Locate position of communication tube in bottom of sprinkler body and orient insertion tool accordingly.

Insert tool straight down into sprinkler body aligning bosses on t-handle with holes on sprinkler body flange. When valve assembly clears vertical side wall ribs inside body, pull up on snap ring release mechanism (855 models only) and press valve assembly into position. Snap ring will lock into groove when properly installed. Remove insertion tool and check snap ring to confirm that it is fully seated in groove

Figure 18

 

 

Snap Ring In

 

Retainer Clip

Snap Ring Release

 

Mechanism

 

 

Valve Assembly

Stepped Side

Orientation In Carrier

Press Valve Assembly

of Snap Ring

Into Position

 

 

Snap Ring

 

Released

Image 8
Contents Constructing Swing Joints Installation ProcedureConnecting Control Wires Electric Models Only Connecting Hydraulic Control Tubing Hydraulic Models Only System Start UpHydraulic Control Systems Recommended System Fill Rate Pipe Size Flow VelocityArc Adjustment Procedure See FigureTrajectory Adjustment Procedure Adjustment Band Angle Indicators180 270 360 Decrease Increase TrajectionTroubleshooting Pilot Valve Operation Electric Models OnlyPilot Valve Sprinkler MechanismMain Valve Service Procedures Servicing Sprinkler MechanismServicing Main Valve Flushing Sprinkler Servicing Pilot Valve

855S, 835S specifications

The Toro 835S and 855S are powerful and versatile groundsmaking machines designed for high performance in a variety of turf care applications. These models are particularly favored for their efficiency, ease of use, and advanced technology, making them ideal for both large and small operators in the landscape and turf management industries.

One of the standout features of the Toro 835S and 855S is their robust and reliable engines. Both models are equipped with high-performance engines that provide ample power for demanding terrain and conditions. This allows operators to tackle tough jobs with confidence, ensuring consistent performance across diverse landscaping projects. The engines also feature advanced cooling systems that maintain optimal temperatures, increasing longevity and reducing downtime.

In terms of cutting capabilities, the Toro 835S and 855S come with a range of cutting decks that can be easily adjusted to the desired height. This flexibility makes it easy to adapt to different grass types and conditions, ensuring a clean and precise cut every time. Furthermore, the dial-in height adjustment allows for quick and accurate setting changes, enhancing productivity.

The intuitive design of these models means they are user-friendly, even for those who may be less experienced. With simplified control layouts and ergonomic seating, operators can navigate through tight spaces and around obstacles with ease. The advanced steering system and lightweight frame also contribute to a more agile operation, reducing operator fatigue during long hours of use.

Both models boast innovative technologies, such as Toro’s Smart Power system, which optimizes engine performance and fuel efficiency. This system adjusts power delivery based on terrain and operating conditions, providing the necessary torque while minimizing fuel consumption. Additionally, Toro's renowned cutting technology ensures a superior quality of cut, promoting healthy turf growth.

Durability is another hallmark of the Toro 835S and 855S. Constructed with high-quality materials and designed for rough handling, these machines are built to withstand challenging conditions and maintain their functionality over extended periods. Features like heavy-duty frames and reinforced components allow for reliable operation even in the toughest environments.

In summary, the Toro 835S and 855S are exceptional machines with powerful engines, flexible cutting options, and user-friendly controls. Their advanced technologies and robust construction make them a valuable asset for any turf management professional looking to enhance productivity and achieve superior results in their landscaping projects.