Toro 640 manual Changing Nozzle and Stator, Changing Complete Nozzle Assembly

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4.With the valve depressed, grasp snap ring "ears" with TORO snap ring pliers (Model No. 995-07), release snap ring from groove and remove from body.

5.Remove valve mechanism with TORO Valve Removal Tool (Model No. 995-08) or carefully grasp one valve rib with snap ring pliers, pulling valve up and out of body.

6.Reassemble valve mechanism in reverse order.

Note: Due to limited work space in 640 sprinklers, use of Toro Valve Insertion Tool (Model No. 995-35) is recommended to simplify valve and snap ring installation.

7.See Reinstalling Nozzle/Drive Assembly.

Body

Snap

Ring

Valve

Changing Nozzle and Stator

Note: Nozzle changes may be accomplished by changing the entire nozzle assembly or by removing the nozzle container end changing only the upper nozzle. In either case, the appropriate matching stator must be installed (i.e., No. 42 Nozzle and No. 42 Stator, etc.) to ensure proper sprinkler operation.

Changing Complete Nozzle Assembly

1.Remove cap set screw with 1/3 in. hex wrench and unscrew cap.

2.Remove nozzle container seal, nozzle retainer and nozzle/drive assembly from body.

3.Remove 1/16 in. allen set screw in side of nozzle canister.

4.Unscrew nozzle assembly from drive assembly.

5.Assure nozzle seal is located at bottom of nozzle base threads.

6.Install new nozzle assembly — HAND-TIGHTEN ONLY, DO NOT OVER-TORQUE.

7.Turn set screw clockwise until contact with riser threads is made (see CAUTION below).

CAUTION

Do not over-torque set screw. Over-tightening will cause thread damage and possible water leak between lower nozzle base and drive assembly.

8.Remove boss on nozzle rubber cover to identify drive assembly arc.

FIGURE 2

Nozzle

Assembly

Set Screw

Drive

Assembly

2

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Contents Servicing the Sprinkler Installation ProcedureValve Replacement Construct Swing JointsChanging Complete Nozzle Assembly Changing Nozzle and StatorChanging Upper Nozzle Changing StatorReinstalling Nozzle/Drive Assembly Alignment Slots

640 specifications

The Toro 640 is a highly regarded model in the Toro lineup, offering exceptional performance and advanced features that cater to both professional landscapers and homeowners. Designed for versatility and efficiency, the Toro 640 stands out with its robust construction and cutting-edge technology.

One of the standout features of the Toro 640 is its powerful engine. Equipped with a reliable and efficient engine, the 640 ensures that users can tackle a variety of lawn care tasks with ease. Whether it’s mowing, mulching, or bagging, this model delivers top-notch performance, ensuring a flawless cut every time.

The Toro 640 is renowned for its innovative SmartStow technology. This feature allows for convenient storage by folding the handle and standing the mower upright. This design not only saves space but also makes it easier to access tighter storage areas. This is especially beneficial for those with limited garage or shed space, as it maximizes efficiency and organization.

Another significant characteristic of the Toro 640 is its cutting system. The model typically includes a superior deck design that promotes an even cut and allows for exceptional grass dispersal. The adjustable cutting height provides users with the flexibility to manage different grass lengths, ensuring that the lawn always looks its best.

The Toro 640 is also designed with user comfort in mind. Its ergonomic handle provides a comfortable grip, reducing fatigue during prolonged use. Additionally, the self-propulsion feature allows users to move with ease across various terrains without requiring excessive effort, making lawn care a more enjoyable task.

In terms of technology, the Toro 640 incorporates advanced features such as an intuitive control panel and maintenance reminders. These elements ensure that the mower remains in optimal condition and that users are aware of necessary servicing, thus extending the life of the equipment.

For those concerned about environmental impact, the Toro 640 promotes eco-friendly practices. With options for mulching and bagging, users can choose to recycle the clippings back into the lawn or collect them for disposal, contributing to better lawn health while reducing waste.

In summary, the Toro 640 is a powerful, innovative lawn mower packed with features that enhance performance and user experience. Its smart storage capabilities, ergonomic design, and advanced cutting technology make it a top choice for anyone looking to achieve a pristine lawn. Whether for occasional use or daily yard maintenance, the Toro 640 stands as a reliable partner in lawn care.