Toro 640 manual Changing Upper Nozzle, Changing Stator

Changing Upper Nozzle

Note: Some of the nozzle assembly components shown in the following procedure are no longer available from Toro as service parts. This procedure should only be used if the upper nozzle assembly is already on hand.

1.Remove cap set screw with 1/8 in. hex wrench and unscrew cap.

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

3.Straighten locking tabs on nozzle container with nozzle container removal tool, Model No. 995-42 or other appropriate tool (see Figure 3).

4.Remove nozzle container, nozzle screws and upper nozzle assembly (see Figure 4).

5.Position new upper nozzle assembly and secure with nozzle screws. DO NOT OVER-TIGHTEN SCREWS. (See Figure 4 and Note below.)

Note: Over-tightening nozzle screws will expand plastic nozzle base causing difficult nozzle container replacement.

FIGURE 3

Container

Removal Tool

995-42

6.Align nozzle opening in container with nozzle orifices and press container downward until fully seated on nozzle assembly.

7.Bend locking tabs into notches approximately 90° to secure nozzle container.

Changing Stator

1.Place nozzle/drive assembly on a flat work surface, nozzle down, and compress return spring to expose stator assembly (see Figure 5).

2.Separate stator from drive assembly (held together by press fit) and CAREFULLY relieve return spring tension.

3.Press in new stator assembly to fully seated position.

FIGURE 4

Upper

Nozzle

Assembly

Lower

Nozzle

Assembly

FIGURE 5

Stator

Assembly

3