Chemical Pre-Mix Kit

1. Remove the fasteners securing the rear tank straps at the top of the tank.

   Note: Retain all parts.

2. Install 2 carriage bolts (3/8 x 1-1/2 inch) to the inboard holes on the left side of the rear tank strap.

3. Install the tank strap fasteners removed previously to secure the straps to the tank.

   Note: Make sure that the strap is secure to the tank. Do not overtighten the strap.

4. Mount 1 thick square spacer and 1 thin square spacer over the 2 previously installed carriage bolts (Figure 3).

   

   Figure 3

   1. Main support frame assembly
   2. Guide plate
   3. Thick square spacer and thin square spacer)

5. Remove and retain the 4 bolts and nuts securing the guide plate to the main-support-frame assembly (Figure 3).

6. Install the main support frame over the square spacers and carriage bolts as shown in Figure 3.

7. Check the fit of the main support frame to the tank.

   When shimmed correctly, the feet of the main support frame are flush with the surface of the tank.

   Important: If the main support frame is not flush, add or remove the installed thick and thin square spacers until the feet of the main support frame are flush with the surface of the tank.

8. Secure the main support frame to the tank strap (Figure 4) using 2 flange locknuts (3/8 inch).

   

   Figure 4

   1. Main-support-frame assembly
   2. Exposed bolt
   3. Exposed bolt
   4. Flange locknut (3/8 inch)

9. Install the previously removed guide plate with the 4 bolts and nuts retained in step 5.

1. Assemble the pivot pin through the upper hole in the cradle arm (Figure 5).

   

   Figure 5

   1. Cradle arm (left)
   2. Bolt (3/8 x 1-1/4 inches)
   3. Upper hole (Cradle arm—left)
   4. Pivot pin
   5. Jam nut (3/8 inch)
   6. Handle
   7. Lower hole (Cradle arm—left)

2. Apply medium-grade, thread-locking compound to the threads of the bolt (3/8 x 1-1/4 inch).

3. Assemble the bolt (3/8 x 1-1/4 inch) through the lower hole in the cradle arm and the retainer of the pivot pin (Figure 5) with the jam nut (3/8 inch), and tighten the jam nut to 15 to 17 N∙m (11 to 13 ft-lb).

4. Thread the handle onto the bolt (3/8 x 1-1/4 inch) and tighten the handle against the jam nut and tighten the handle by hand (Figure 5).

5. Repeat steps 1 through 4 to the other cradle arm (Figure 5).

1. Insert the axle of the right cradle arm through the hinge shaft (Figure 6).

   

   Figure 6

   1. Back-plate assembly
   2. Hairpin
   3. Flat washer
   4. Bushing
   5. Pivot pin
   6. Jam nut (3/8 inch)
   7. Handle
   8. Bolt (3/8 x 1-1/4 inches)
   9. Right cradle arm
   10. Main-support-frame assembly
   11. Cradle-arm axle
   12. Pivot housing

2. Loosely attach the left arm to the exposed axle on the other side of the frame. (Figure 6).

3. On the back-plate assembly, install the 2 small bushings into the back-plate pivot points (Figure 6).

4. Move the back-plate assembly into position between the upper holes in each arm. (Figure 6).

5. Install a pivot pin through the upper hole in the arm and the back-plate assembly. (Figure 6).

6. Secure the handle to the back-plate assembly using a flat washer and hairpin as shown in Figure 6.

7. Secure the handles to the lower holes on the arms (Figure 6) with a bolt (3/8 x 1-1/4 inches) and a jam nut (3/8 inch).

8. Secure the upper pivot pin of the left cradle arm to the back plate with a washer (1/2 inch) and hairpin (Figure 6).

9. Thread 2 set screws into the left arm at the lower hinge point (Figure 7).

   Note: Do not tighten the set screws. You will tighten the set screws in Assembling the Eductor to the Sprayer.

   

   Figure 7

   1. Cradle arm (left)
   2. Pivot tube
   3. Set screw
   4. Holes in cradle arm

1. Install the spring in the hole in the lower end of the angled tab on the side of the frame assembly (Figure 8).

   

   Figure 8

   1. Angled tab
   2. Hole in tab
   3. Spring
   4. Post
   5. Groove

2. Hook 1 end of the spring into the hole and the other end onto the spring post (Figure 8).

3. Make sure that the spring end is seated properly in the groove in the post (Figure 8).

4. Repeat steps 1 through 3 for the other side.

Move the cradle assembly into the upper transport position to adjust the tongue.

1. Lift the cradle handles to raise the assembly while slightly tipping it toward the tank.

2. Guide the tongue under the crossbar with the welded tab in the upper portion of the frame assembly.

3. Let the assembly pivot down, toward the tank.

4. Making sure that the plastic stops are in contact with the spring tabs, apply enough pressure against the back plate assembly of the cradle to compress the spring tabs midway (Figure 9).

   

   Figure 9

   1. Spring tab under pressure
   2. Back plate
   3. Spring tab

5. While maintaining the pressure on the back plate, slide the tongue toward you until the lip of the tongue plate contacts the crossbar (Figure 10).

   

   Figure 10

   1. Tongue-plate lip
   2. Fasteners
   3. Slot in plate
   4. Welded tab

6. Tighten the fasteners in the tongue to secure its position, then release pressure on the back plate.

   Note: Check to see if there is any play in the cradle. It should be held snug to the frame assembly. You can repeat this procedure once the eductor is installed to adjust the locked position.

Note: You can install the latch handle and latch post at either the left or right side of the eductor handle.

1. Attach the handle to the eductor using 2 flange-head bolts and 2 flange nuts (Figure 11).

   

   Figure 11

   1. Flange nut (5/16 inch)
   2. Handle
   3. Flange-head bolt (5/16 inch)
   4. Eductor

2. Lower the cradle into the down position.

1. Align the holes in the eductor mount plate with the slots in the cradle support frame (Figure 12).

   Note: The fasteners need to be loose enough so that they can travel in the slot when the eductor is initially raised up into the transport position. This allows you to adjust the travel and alignment of the eductor.

   

   Figure 12

   1. Bolt (3/8 x 1 inch)
   2. Back plate
   3. Flanged-serrated nut (3/8 inch)
   4. Eductor assembly mount hole
   5. Eductor assembly mount

2. Assemble the eductor to the back plate (Figure 12) with the 4 bolts (3/8 x 1 inch) and locknuts (3/8 inch).

   Note: Do not tighten the bolts and locknuts.

3. To carefully raise the eductor in the cradle assembly up to the transport position, do the following:

   1. Lift the lower handle to raise the eductor while slightly tipping it toward the tank.

   2. Guide the tongue under the crossbar with the welded tab in the upper portion of the frame assembly.

   3. Then pivot the assembly toward the tank, taking care to line up the spring clip with the large pivot tube in the lower portion of the frame.

   4. Push until the spring clip snaps over the pivot tube as shown in Figure 13.

      

      Figure 13

      1. Spring clip
      2. Pivot tube

4. Check the eductor height on the cradle back plate and adjust the eductor position as necessary.

5. Torque the bolts and locknuts securing the eductor to the to the back plate to 36 to 45 N∙m (27 to 33 ft-lb).

6. Tighten the 2 set screws on the left hand pivot arm, refer to Figure 7 in Assembling the Cradle Arms to the Support Frame.

7. Check the overall position of the eductor assembly on the sprayer tank strap.

   Note: When adjusted correctly, the eductor appears upright when positioned to the transport position. Loosen the lower locknut on the frame assembly securing it to the tank. Do not remove the locknut. Adjust the position as necessary and tighten the locknut. Ensure that the tank strap is secure to the tank.

1. Open the lid of the spray tank and remove the filter basket (Figure 14).

   

   Figure 14

2. Locate the forward location on the top of the tank as shown in Figure 15.

   Note: Locate the drill mark in the center of the molded circle.

   

   Figure 15

3. Use a 9 cm (3-5/8 inch) hole saw to drill a hole at the drill mark (Figure 15).

   Note: You will need to increase the diameter slightly to accommodate the bulkhead.

4. After drilling the hole, remove any rough edges in the cut, and remove any debris that entered the main tank during the cutting process.

1. Install the bulkhead fitting and the seal through the hole that you created in Drilling the Tank, from inside the tank (Figure 16).

   

   Figure 16

   1. Locking ring
   2. O-ring
   3. Bulkhead

2. Secure the bulkhead to the tank with the locking ring (Figure 16).

3. Install the filter basket and close the lid of the spray tank.

1. Install the hose end with the 90° fitting to the previously installed bulkhead using a retainer pin (Figure 17).

   

   Figure 17

   1. Eductor-hose assembly
   2. Retainer pin

2. Attach the other end of the hose to the forward-facing opening of the eductor using a gasket and hose clamp (Figure 18).

   

   Figure 18

   1. Hose clamp
   2. Hose
   3. Gasket
   4. Eductor

3. Raise and lower the eductor to ensure that the hose does not catch on anything.

   

   Figure 19

   1. Eductor hose
   2. Tank
   3. Slack in the hose

4. Secure the end of the supply hose without a bulkhead to the rear opening on the eductor valve using the gasket and hose clamp (Figure 20).

   

   Figure 20

   1. Eductor
   2. Gasket
   3. Hose
   4. Hose clamp

1. Remove the elbow, flange clamp, gasket, elbow, and inlet hose from the pressure filter head (Box A of Figure 21).

   Note: Retain the gasket, flange clamp, and retainer pin for installation later.

   

   Figure 21

   1. Elbow
   2. Flange clamp
   3. Gasket
   4. Valve bracket
   5. Eductor valve
   6. Nut
   7. Bolt

2. Place the valve bracket on top of the eductor valve as shown in Box B of Figure 21.

3. Install the eductor valve using the gasket and flange clamp removed in Step 1; refer to Box B of Figure 21.

4. Secure the bracket to the boom valve assembly using the bolts and nuts that are currently installed on the pressure filter; refer to Box C of Figure 21.

5. Route and secure the pressure hose assembly as shown in Figure 22.

   

   Figure 22

   1. Hose clamp
   2. Retainer pin
   3. Pressure hose assembly
   4. Hose clamp
   5. Retainer pin (existing)

6. Secure the supply hose to the valve using a retainer pin.

   

   Figure 23

   1. Supply hose assembly
   2. Eductor valve
   3. Retainer pin

Important: Under some conditions, heat from the engine, radiator, and muffler can potentially damage the grass when operating the sprayer in a stationary mode. Stationary modes include tank mixing, agitation, hand spraying, or using a walking boom.

Take the following precautions:

• Avoid stationary spraying when conditions are very hot and/or dry, as turf can be more stressed during these periods.

• Avoid parking the machine on the turf while stationary spraying. Park the machine on a cart path whenever possible.

• Minimize the amount of time that the machine is left running over any particular area of turf. Both time and temperature affect how much the grass may be damaged.

• Set the engine speed as low as possible to achieve the desired pressure and flow. This will minimize the heat generated and the air velocity from the cooling fan.

Note: Use a heat shield blanket underneath the vehicle during stationary operation for additional heat protection. Contact your authorized Toro distributor to obtain a Toro heat shield blanket kit for turf sprayers.

The following procedure assumes the following operational states exist for the standard tank agitation: the sprayer is started and running, the pump is engaged and set to the desired pressure, and the throttle is in the mid-range position.

Perform the following steps if you are having difficulty getting the powered or granulated chemicals to mix in the sprayer tank:

1. Mix a portion the chemical into the sprayer tank.

2. Close the eductor valve and run sprayer tank agitation.

3. Open the eductor valve and mix another portion of the chemical into the sprayer tank.

4. Repeat steps 2 and 3 until all the chemicals are mixed into the sprayer tank.

Important: Do not use brackish or reclaimed water to clean the machine.

1. Prepare the sprayer system for cleaning; refer to the Cleaning the Sprayer System in the Operator’s Manual for your machine.

2. Lower the eductor and ensure that the lid is closed and locked; refer to Lowering the Eductor.

3. Open the eductor valve, hopper valve, and rinse valve.

4. Clean the sprayer system; refer to the Cleaning the Sprayer System in the Operator’s Manual for your machine.

5. Close the rinse valve, hopper valve, and eductor valve.

6. Align a 19 L (5 US gallon) container under the drain valve, open the drain valve, allow the eductor to fully drain, and close the valve.

7. Close and lock the hopper lid by turning the cover clockwise.

8. Wash the exterior of the eductor as needed using water alone or with a mild detergent.

9. Raise the eductor to the transport position and secure it with the transport strap; refer to Raising the Eductor.