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Toro Multi Pro 1750 Installation Instructions Manual

Turf sprayer
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Valve Conversion Kit
Multi Pro
Model No. 136-0372
The valve conversion kit is a kit that replaces the sprayer control valves and related components for a turf spray application
vehicle.
You may contact Toro directly at www.Toro.com for product safety and operation training materials, accessory information,
help finding a dealer, or to register your product.
This product contains a chemical or chemicals known to the State of California to
Use of this product may cause exposure to chemicals known to the State of California

Safety

WARNING
Chemical substances used in the spray system may be hazardous and toxic to you, bystanders, animals,
plants, soils, or other property.
• Carefully read and follow the chemical warning labels and material safety data sheets (MSDS) for all
chemicals used and protect yourself according to the chemical manufacturer's recommendations. For
example, use appropriate personal protective equipment (PPE), including face and eye protection,
gloves, or other equipment to guard against personal contact with a chemical.
• There may be more than 1 chemical used and information on each chemical should be assessed.
• Refuse to operate or work on the sprayer if this information is not available.
• Before working on a spray system, ensure that the system has been triple rinsed and neutralized
according to the recommendations of the chemical manufacturer(s) and that all the valves have been
cycled 3 times.
• Verify that there is an adequate supply of clean water and soap nearby, and immediately wash off any
chemicals that contact you.
© 2016—The Toro® Company
8111 Lyndale Avenue South
Bloomington, MN 55420
®
1750 Turf Sprayer
Proposition 65 Warning
cause cancer, birth defects, or reproductive harm.
to cause cancer, birth defects, or other reproductive harm.
Register at www.Toro.com.
WARNING
CALIFORNIA
Form No. 3406-976 Rev A
Installation Instructions
Original Instructions (EN)
All Rights Reserved *3406-976* A
Printed in the USA

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  • Page 1 The valve conversion kit is a kit that replaces the sprayer control valves and related components for a turf spray application vehicle. You may contact Toro directly at www.Toro.com for product safety and operation training materials, accessory information, help finding a dealer, or to register your product.
  • Page 2 Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or missing. 127-6976 1. Decrease 2. Increase 127-6982 1. Pump-return flow 2.
  • Page 3 Installation Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description Qty. – No parts required Prepare to install the kit. – No parts required Disconnecting the pressure-sense tube. Disconnect the wire harness from the –...
  • Page 4 Procedure Description Qty. Sprayer supply hose—2.5 x 73 cm (1 x 28-7/8 inches)—machines without the optional eductor kit Flange clamp—40 to 64 mm (1-9/16 to 2-1/2 inches) Gasket—25 x 35 mm (1 x 1-3/8 inches) Support clamp—machines without the optional eductor kit Flange-head bolt (5/16 x 3/4 inch)—machines without the optional eductor kit...
  • Page 5 Preparing to Install the Kit No Parts Required Preparing the Sprayer Tank and Optional Rinse Tank 1. Park the machine on a level surface. 2. Engage the parking brake. 3. Shut off the engine and remove the key. Figure 2 1.
  • Page 6 Disconnecting the Battery 4. Rotate the seat and seat plate forward until the end of the prop rod at the prop-rod bracket is at the bottom WARNING of the groove of the bracket (Figure 5. Allow the engine to cool completely. Electrical sparks can cause the battery gasses to explode, resulting in personal injury.
  • Page 7 Disconnecting the Disconnecting the Wire Pressure-Sense Tube Harness from the Valves No Parts Required No Parts Required Procedure Procedure 1. Press in the collar for the tube coupler in the end cap 1. Remove the screw that secures the 3-contact connector of the right boom-section valve (Figure of the wire harness labeled...
  • Page 8 Figure 8 Figure 7 1. Bracket (throttle valve) 3. Bracket 1. Master spray valve 4. Valve electrical connector (agitation/rate/master-spray (agitation valve) valve) 2. Rate valve 5. 3-contact connector 2. Push-in fastener (wire harness— AGITATION VALVE 3. Agitation valve 6. Valve electrical connector (master spray valve) 5.
  • Page 9 Disconnecting the Optional Attachments Figure 10 No Parts Required Disconnecting the Optional Eductor Kit 1. Remove the flange clamp that secures the flanged hose-barb of the supply hose to the inlet flange of the eductor (Figure Figure 9 1. Inlet flange (eductor) 3.
  • Page 10 Disconnecting the Optional Electric Disconnecting the Optional Hand Hose-Reel Kit Spray-Wand Kit 1. Remove the hose clamp that secures the supply hose to 1. Remove the hose clamp that secures the supply hose to the barbed fitting at the inlet swivel of the reel (Figure the barbed fitting of the spray gun (Figure...
  • Page 11 Note: Retain the hose clamp for installation in Installing the Supply Hoses to the Boom Sections (page 39). Removing the Boom-Section Valves No Parts Required Removing the Boom-Section Hoses 1. At the outer-boom section, remove the hose clamp that secures the supply hose for the boom section to the barbed T-fitting (Figure 14).
  • Page 12 Removing the Flow Meter from the Removing the Bypass Hose from the Valve Manifolds Boom-Section Valves 1. Remove the flange clamp that secures the barbed 1. Remove the retainer that secures the 90° barbed fitting flange fitting of the flow meter hose to the flow meter of the bypass hose from the socket fitting of the bypass (Figure 16).
  • Page 13 Removing the Boom-Section Valves, Supply Hoses, and Section-Valve Mount 1. Remove the 4 flange-head bolts (5/16 x 3/4 inch) that Removing the Agitation secure the section-valve bracket to the section-valve Nozzles mount (Figure 18). Note: Retain the flange-head bolts for installation in Installing the Section Valve Manifold (page 24).
  • Page 14 Removing the Bracket for the Agitation Throttle Mount 1. Remove the 2 flange-head bolts (5/16 x 5/8 inch) that secure the agitation throttle valve to the throttle-valve Removing the Agitation, Rate, bracket (Figure 21). and Master-Spray Valves No Parts Required Disconnecting the Return, Sprayer-Supply, and Bypass Hoses 1.
  • Page 15 6. Remove the straight barbed fitting from the T-fitting (Figure 25). Removing the Agitation, Rate, and Master-Spray Valves from the Machine 1. While supporting the bracket for the agitation, rate, and master-spray valves, remove the 3 flange-head bolts (5/16 x 3/4 inch) that secure valve bracket to the mount (Figure 26).
  • Page 16 Removing the Section Bypass Hose the wire harness for the branch labeled RIGHT SPRAY as shown in Figure VALVE 1. Remove the retainer that secures the 90° barbed fitting of the section bypass hose for the boom-section valves from the bulkhead fitting at the back of the sprayer tank (Figure 28).
  • Page 17 Figure 32 1. DIN connector 6. Remove a 70 mm (2-3/4 inches) section of the sheathing from the DIN connector harness (Figure 33). Figure 31 1. Inline-fuse block 3. Cable tie 2. Positioned convoluted tubing 4. Align the inline-fuse block to the convoluted tubing as shown in Figure 31 and secure the fuse block to the...
  • Page 18 Wiring Table—Right Spray Valve Wire color codes—DIN wire Wire color codes—3-pin harness adapter Brown Pink Blue Black White Yellow/green 2. Insert the wire of the DIN wire harness into the butt-splice connector of the 3-pin adapter (Figure 34). Figure 36 Figure 34 1.
  • Page 19 Installing the Center Spray-Valve Installing the Rate-Valve Connector Connector 1. Cut off the butt-splice connectors for the pink wire and black wires of the 4-pin adapter (Figure 37). 1. Align the wire insulation colors of the DIN harness to the wire insulation colors of the 3-pin adapter for the center spray valve as shown in the wire table for the center spray valve.
  • Page 20 Figure 39 1. 4-pin adapter (rate valve) 4. Blue wire (DIN wire harness) 2. Gray wire (4-pin adapter) 5. Brown wire (DIN wire Figure 40 harness) 3. Green wire (4-pin adapter) 6. DIN harness (rate valve) 1. Green and yellow wire 3.
  • Page 21 Installing the Agitation Valve Connector 1. Cut off the butt-splice connectors for the pink wire and black wire of the 3-pin adapter (Figure 41). Figure 41 Figure 43 1. 3-pin adapter 3. Pink wire 2. Black wire 4. Butt-splice connector 1.
  • Page 22 Installing the Master-Spray Valve Connector 1. Insert the yellow and green wire of the DIN wire harness into the butt-splice connector on the white wire of the 3-pin adapter for the master-spray valve (Figure 45). Figure 44 1. Brown wire (cutting the 3.
  • Page 23 7. Insert the pink wire of the 4-pin adapter for the rate valve, pink wire of the 3-pin adapter of the agitation valve, and brown wires for the DIN wire harness into the butt-splice connector on the pink wire of the 3-pin adapter for the master-spray valve.
  • Page 24 Installing the Section Valve Manifold 1. Align the 4 holes in the bracket for the section-valve with the 4 holes in the mount (Figure 49). Installing the Valve Manifolds Parts needed for this procedure: Agitation, rate, and master-spray manifold Section valve manifold Installing the Agitation, Rate, and Master-Spray Valve Manifold 1.
  • Page 25 Figure 51 1. Rate valve actuator 4. Left spray-valve actuator 2. Agitation valve actuator 5. Center spray-valve actuator 3. Master spray-valve 6. Left spray-valve actuator actuator 2. Remove the retainer that secures the valve actuator to Figure 50 the manifold valve and separate the actuator from the 1.
  • Page 26 Installing the Flow Meter 1. Align the flow meter to the reducer adapter at the left spray valve with the arrow of the flow meter pointing right (Figure 53). Figure 54 1. Quick-connect fitting 3. Retainer (master-spray valve) 4. Flow-meter hose 2.
  • Page 27 Assembling the Valve Actuator to the Manifold Valve Perform this procedure if you removed the valve actuator (s) to install the hose assemblies onto the manifold valve(s). 1. Align valve actuator that you identified in step Removing the Valve Actuators (page 25) with the manifold valve position shown in Figure...
  • Page 28 Connecting the Electrical Connectors for the Rate Valve, Agitation Valve, and Master-Spray Valve 1. Connect the 3-pin valve harness labeled MASTER SPRAY Assembling the Agitation into the 3-socket connector for the master-spray VALVE Throttle Valve and valve (Figure 57). Eductor–Shutoff Valve for Machines with the Optional Eductor Kit Parts needed for this procedure:...
  • Page 29 Assembling the Eductor–Shutoff Valve for Machines with the Optional Eductor 1. Align the hose in the eductor-shutoff bracket with the studs of the eductor-shutoff valve as shown in Figure Figure 59 1. Flange locknut (1/4 inch) 3. Stud (eductor-shutoff valve) 2.
  • Page 30 2. Assemble the agitation-valve bracket to the mount for the throttle-valve bracket (Figure 60) with 2 flange-head bolts (5/16 x 3/4 inch). 3. Torque the flange-head bolts to 1978 to 2542 (175 to Installing the Agitation-Nozzle 225 in-lb). Assembly and Hoses Assembling the Throttle Valve and Eductor-Shutoff Valve for Machines Parts needed for this procedure:...
  • Page 31 Figure 63 1. Agitation-nozzle assembly 3. 90° quick-connect fitting 2. Retainer 4. Quick-connect fitting (agitation throttle valve) Installing the Return Hose, Agitation Supply Hose, and Bypass Hose Parts needed for this procedure: Return hose—2.5 x 72 cm (1 x 27-7/8 inches) Figure 64 Agitation supply hose—2.5 x 72 cm (1 x 28-1/4 inches) 1.
  • Page 32 Installing the Agitation Supply Hose 1. Assemble the quick-connect fitting (straight barbed) of the agitation supply hose—2.5 x 72 cm (1 x 28-1/4 inches) onto the quick coupling of the agitation control valve with the retainer that is supplied with the hose (Figure 66).
  • Page 33 Figure 67 1. Agitation supply hose—2.5 x 72 cm (1 x 28-1/4 inches) 3. Assemble the quick-connect fitting (straight barbed) of the agitation supply hose onto the quick coupling of the agitation throttle valve with the retainer that is supplied with the hose (Figure 67).
  • Page 34 Installing the Sprayer Supply Hose Parts needed for this procedure: Sprayer supply hose—2.5 x 73 cm (1 x 28-7/8 inches)—machines without the optional eductor kit Figure 69 Flange clamp—40 to 64 mm (1-9/16 to 2-1/2 inches) 1. Bypass hose—2.5 x 110 cm (1 x 43-1/2 inches) Gasket—25 x 35 mm (1 x 1-3/8 inches) Support clamp—machines without the optional 4.
  • Page 35 Figure 71 1. Sprayer supply hose—2.5 x 73 cm (1 x 28-7/8 inches) 4. Assemble the straight barbed fitting of the sprayer supply hose into the forward, left T-fitting (Figure 70). 5. Secure the barbed fitting to the T-fitting with the retainer that you removed in step Disconnecting the Return, Sprayer-Supply, and Bypass Hoses (page...
  • Page 36 Installing the Lower Sprayer Supply 4. Assemble the 90° barbed fitting of the sprayer supply hose into the forward, left T-fitting (Figure 75). Hose—Machines with the Optional Eductor Kit 1. Assemble the straight barbed fitting of the lower supply hose—25 x 66 cm (1 x 25-3/4 inches) into the port of the eductor-shutoff valve (Figure 73).
  • Page 37 Installing the Upper Sprayer Supply Hose—Machines with the Optional Eductor Kit 1. Align the straight barbed fitting of the upper supply Installing the Section Spray hose 25 x 22 cm (1 x 8-5/8 inches) and a gasket—25 x Valve Hoses 35 mm (1 x 1-3/8 inches) with the flange of the adapter on the eductor-shutoff valve (Figure...
  • Page 38 Figure 78 1. Section bypass hose—2.5 x 146 cm (1 x 57-1/2 inches) 3. Assemble the 90° barbed fitting of the section bypass hose into the bulkhead fitting (Figure 77). 4. Secure the 90° fitting to the bulkhead fitting (Figure with the retainer (large) that you removed in step Removing the Section Bypass Hose (page 16).
  • Page 39 Installing the Supply Hoses to the Boom Sections 1. Assemble the center boom-supply hose onto the T-fitting at the center-boom section (Figure 81). Figure 80 1. Retainer 5. Straight barbed fitting—supply hose for the left-boom section—2 x 205 cm (3/4 x 80-13/16 inches) 2.
  • Page 40 Installing the Shutoff Valve and Hoses for the Optional Spray Gun Kit or Electric Hose-Reel Kit Parts needed for this procedure: Cap and retrainer Straight barbed fitting (1/2 inch) Quick-connect fitting (socket) Hose clamp 13 to 32 mm (1/2 to 1-1/4 inches) Hose—1.3 x 762 cm (1/2 x 300 inches) Hose—1.3 x 180 cm (1/2 x 83 inches) Figure 82...
  • Page 41 5. Rotate the bypass manifold 180° and seat it onto the 3 quick-connect fittings of the spray valve manifold (Figure 85). Figure 83 1. Retainer 3. Plug Figure 85 2. Quick-connect socket 1. Bypass 3. Quick-connect fitting manifold—quick-connect (spray valve manifold) socket 2.
  • Page 42 Installing the Shutoff Valve for the Optional Spray Gun Kit or the Electric Hose Reel Kit 1. Remove the flange clamp that secures the gasket and end cap to the flange of the right spray valve (Figure 87). Figure 88 1.
  • Page 43 Figure 91 1. Hose—1.3 x 762 cm (1/2 x 3. Straight barbed fitting (1/2 300 inches) inch) Figure 89 2. Hose clamp 4. Quick-connect fitting (socket) 1. Flange 3. Flange clamp (right-boom-section valve) 3. Assemble the hose—1.3 x 762 cm (1/2 x 300 inches) 2.
  • Page 44 Installing the Supply Hose—Machines with the Optional Electric Hose-Reel Kit 1. Assemble the straight barbed fitting (3/4 inch) that you removed in step Installing the Shutoff Valve for the Optional Spray Gun Kit or the Electric Hose Reel Kit (page 42) to the hose—1.3 x 180 cm (1/2 x 71 inches) with a hose clamp 13 to 32 mm (1/2 to 1-1/4 inches) as shown in...
  • Page 45 Figure 98 Figure 96 1. Barbed fitting (inlet swivel) 3. Supply hose (hose reel) 2. Hose clamp 1. Quick-connect fitting 4. Hose—1.3 x 180 cm (1/2 (flange shutoff valve) x 83 inches) 2. Retainer 5. Front of the machine 3. Straight barbed fitting 3.
  • Page 46 Installing the Section Bypass Hose—Machines with the Optional Spray Gun Kit or the Optional Electric Hose Reel Kit 1. Assemble the bypass shutoff valve to the quick-connect socket of the bypass manifold (Figure 99) with the small retainer that you removed in step Repositioning the Section Bypass Valves (page 40).
  • Page 47 Installing the Supply Hose for the Optional Eductor Kit Parts needed for this procedure: Eductor supply hose 2 x 88 cm (3/4 x 34-11/16 inches) Retainer (small) Procedure 1. Align the straight barbed fitting of the eductor supply hose 2 x 88 cm (3/4 x 34-11/16 inches) with the gasket that you removed in step Disconnecting the Optional Eductor Kit (page 9)
  • Page 48 Connecting the Pressure Sense Tube No Parts Required Procedure Insert the pressure sense tube into the tube connector at the end section valve (Figure 103 Figure 104). Figure 102 1. Eductor supply hose 2 x 88 cm (3/4 x 34-11/16 inches) 4.
  • Page 49 Product Overview Controls Regulating (Rate-Control) Valve This valve, located behind the tank (Figure 105), controls the amount of fluid that is routed to the booms or the rate return to the tank. Figure 104 Figure 105 Machines with the spray wand kit or electric hose-reel kit 1.
  • Page 50 Operation Calibrating the Boom-Section-Bypass Valves Note: Before using the sprayer for the first time, if you change the nozzles, or as needed, calibrate the sprayer flow, speed, and boom bypass. Select an open flat area to perform this procedure. 1. Fill the spray tank halfway with clean water. 2.
  • Page 51 Calibrating the Agitation-Bypass Valve Service Interval: Yearly Select an open flat area to perform this procedure. 1. Fill the spray tank with clean water. 2. Verify the agitation-control valve is open. If it has been adjusted, open it completely at this time. Figure 107 3.
  • Page 52 1. Fill the sprayer tank 1/2 full with clean water. Note: Optional pressure filter screens are available through 2. Move the machine to an open level surface. your authorized Toro parts distributor. 3. Set the parking brake. 1. Move the machine to a level surface, shut off the sprayer pump, shut off the engine, and remove the key 4.
  • Page 53 Note: Replace any damaged or worn O-rings for the plug, bowl, or both. 7. Install the new pressure-filter element into the filter head (Figure 110). Note: Ensure that the filter element is firmly seated into the filter head. 8. Install the bowl onto the filter head and tighten by hand (Figure 110).
  • Page 54 Removing the Agitation-Manifold Valve 1. Remove the clamps and gaskets that secure the manifold for the agitation valve to the agitation bypass valve, pressure-filter head, reducer coupling, and adapter fitting (agitation throttle valve) as shown in Figure 112. Note: Retain the clamps, gaskets, quick connect, and quick-connect pin for installation in Installing the Agitation-Manifold Valve (page...
  • Page 55 2. Remove the retainer that secures the section valve manifold to the bypass fitting (Figure 115). Figure 116 1. Bypass fitting 2. Section valve manifold Figure 115 1. Retainer 3. Manifold-valve assembly 2. Socket (bypass fitting) 4. Socket (outlet fitting) Cleaning the Manifold Valve 1.
  • Page 56 Figure 118 Agitation Valve Manifold Figure 119 Section Valve Manifold 1. Stem retainer 7. Back seating O-ring (0.676 inch / 0.07 inch) 1. Valve-stem seat 7. End cap O-ring (0.796 inch 2. Valve stem 8. Valve-seat ring / 0.139 inch) 3.
  • Page 57 Assembling the Manifold Valve 1. Check the condition of the outlet fitting O-rings (section valve manifold only), end cap O-rings, back seating O-rings, and ball seat for damage or wear (Figure 118 Figure 119). Note: Replace any damaged or worn O-rings or seats. 2.
  • Page 58 Installing the Section-Manifold Valve Installing the Valve Actuator 1. Insert the upper end-cap fitting of the manifold valve 1. Align the actuator to the manifold valve. into the bypass fitting (Figure 122). 2. Secure the actuator and valve with the retainer that you removed in step Installing the Valve Actuator Note: If needed, loosen the mounting hardware for...
  • Page 59 Storage Perform the following maintenance steps for short-term or long-term storage: • For short-term storage (less than 30 days), clean the sprayer system; refer to your Operator’s Manual. • For long-term storage (longer then 30 days), clean the agitation valve and the 3 section valves; refer to Cleaning the Agitation and Section Valves (page 53).
  • Page 60 Troubleshooting Troubleshooting the Spray System Problem Possible Cause Corrective Action A boom section does not spray. 1. The electrical connection on the boom 1. Turn the valve off manually. Disconnect valve is dirty or disconnected. the electrical connector on the valve and clean all leads, then connect it.
  • Page 61 Schematics Flow Diagram (Rev. A)
  • Page 62 Notes:...
  • Page 63 Notes:...

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136-0372

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