Service Procedures, Servicing Sprinkler Mechanism

Service Procedures ______________________________________________________________

WARNING

NEVER STAND OR LEAN OVER THE SPRINKLER WHILE THE IRRIGATION SYSTEM IS BEING FILLED, DURING MANUAL OR AUTOMATIC OPERATION OR WHEN PERFORMING SPRINKLER SERVICE PROCEDURES. DIRECT CONTACT WITH IRRIGATION SPRAY, A FAILED OR IMPROPERLY INSTALLED SPRINKLER CONNECTION OR SPRINKLER COMPONENTS FORCIBLY EJECTED UPWARD UNDER PRESSURE CAN CAUSE SERIOUS INJURY.

Servicing Sprinkler Mechanism

Note: Refer to Figure 13 for the following procedure.

1.Remove the cap screw (1) and cap (2).

Note: During reassembly, ensure the cap is correctly installed with the Toro Logo positioned over the main nozzle (10).

2.Insert the hooked end of the multi-purpose tool (P/N 995-83) into the snap ring slot (3). Pull the snap ring inward towards the sprinkler assembly, then upward to remove from the groove in body.

Note: During reassembly, ensure the snap ring is correctly installed and fully seated in the sprinkler body.

3.Insert the hooked end of the tool into the slot provided in the nozzle base above the right intermediate nozzle (9). Pull the riser assembly until enough clearance to handle. Hold onto the riser body (13) and carefully extract it from the sprinkler body.

CAUTION: The seal/retainer (4) will eject (caused by the decompressing spring [5]) as it clears the sprinkler body.

4.Three small tabs are provided on the edge of the multi-purpose tool. Insert tabs into the debris filter screen (17). Holding the plastic base of riser assembly, turn the screen counterclockwise to remove.

5.Remove the variable stator (16) from riser assembly.

6.Loosen the drive assembly retaining screw (14) 6–7 turns and pull the drive assembly (15) using a pair of pliers. See Figure 14. Note: Do not remove the retaining screw completely as it is easily misplaced.

CAUTION: When removing or installing the drive assembly, do not use the turbine to pull the drive assembly. Use the drive assembly body to extract it out. Failure to comply may cause separation of the drive assembly components.

Note: During reassembly, ensure drive assembly is properly aligned with the retaining screw.

7.Using a 5/8" nut driver (P/N 995-99), unscrew main nozzle (10) from nozzle base assembly.

8.Using a 5/16" nut driver (P/N 995-105), unscrew the inner (8) and intermediate (9) nozzles.

9.Thoroughly clean and inspect all parts and replace as necessary. Reassemble in reverse order.

10.When installing the riser assembly to the sprinkler body, align the ratchet ring with the inside body rib. Use the indicator on top of the sprinkler body to center the ratchet ring. See Figure 15.

Figure 13	1
2	10	8	7
3			12
3
	11	9	13
			13
4
			15
	14
	5
			16
			17
6

Figure 14

Figure 15

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.