Form No. 3418-558 Rev D Flow Divider Kit Groundsmaster® 4500-D, 4700-D Traction Unit Model No. 31527 Installation Instructions Safety 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. decal132-6104 132-6104 1. 4WD Lock 2. 4WD Unlock decal132-6185 132-6185 1.
Installation Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 4 5 6 7 8 Description Use Qty. No parts required – Prepare the machine. No parts required – Remove the hydraulic lines.
WARNING 1 Incorrect battery-cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. Preparing the Machine No Parts Required • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. Procedure Note: You can use a hoist for better access under the machine. • Always connect the positive (red) battery cable before connecting the negative (black) cable.
2 Removing the Hydraulic Lines No Parts Required Removing the Pressure Hose 1. Align a drain pan below the forward end of the pressure hose (Figure 2). g021282 Figure 3 Side View Shown g021275 1. Bolts 2. Chassis bracket 3. Divider tube 6. Tube bracket 7. Pressure hose 8. Up 4. Nut 5. Clamp 9. Forward 3. Remove the rear end of the pressure hose from the fitting in the hydraulic pump, and remove the pressure hose; refer to Figure 2 and Figure 3. 4. Temporarily cap the pump and the divider tube.
Removing the Tube Bracket and Clamp 1. 2. Removing the Tank Hose Important: This procedure is necessary if you are going to install the 4WD switch. Remove the bolt and the nut that secure the divider tube to the tube bracket, and remove the clamp (Figure 3 or Figure 2). Remove the 2 bolts and the 2 nuts that secure the tube bracket to the chassis bracket (Figure 3 or Figure 2). 1. Align a drain pan below the forward, straight end of the tank hose. 2.
3 Installing the Coils on the Flow-Divider Manifold Assembly 4WD Switch Only Parts needed for this procedure: 1 Plug 2 Valve 2 Coil (12 V) 2 Coil nut Procedure g230515 Figure 5 Important: The manifold comes pre-assembled for use without the switch; this procedure is necessary if you are going to install the 4WD switch. 1. 2. 1. Coil nut 4. Existing orifice (removed) 2. Coil (12 V) 5. Plug 3. Valve 6. New orifice Remove the 2 existing valves from the CV1 and CV2 ports of the manifold. 3.
Installing the Rear-traction Tube and the Pressure Hose 4 1. Installing the Hydraulic Components Align the forward tube nut for the rear-traction tube with the elbow fitting in the flow-divider manifold (Figure 7 and Figure 8). Parts needed for this procedure: 1 Flow-divider manifold 1 Pressure hose 1 Manifold tube 1 Traction-motor tube 1 Divider tube 1 Tank hose 2 Bolt 2 Flange nut Installing the Flow-divider Manifold 1.
Installing the Cross Tube 1. Remove the cap on the fitting of the rear-traction manifold that you previously installed. 2. Align the tube nuts for the cross-manifold tube to the fittings in the rear-traction manifold and the flow-divider manifold (Figure 9). g205014 Figure 8 1. Flow-divider manifold 4. Pressure hose (pump fitting) 2. Pressure hose (divider fitting) 5. Hydraulic pump 3. Rear-traction tube (forward fitting) 6. Forward g205016 Figure 9 3.
Installing the Filter Tube and the Divider Tube 1. Installing the Traction-motor Tube 1. Prepare the hydraulic-filter tube retained from Removing the Cross Tube (page 4). Align the tube nut for the hydraulic-filter tube to the fitting in the cross-manifold tube as shown in Figure 10. Align the tube nuts for the traction-motor tube to the fittings in the traction motor and the flow-divider manifold (Figure 11). g205018 Figure 11 1. Traction motor 4. Traction-motor tube (flow-divider fitting) 2.
Installing the Tank Hose Important: This procedure is necessary if you are going to install the 4WD switch. 1. Remove the temporary cap from the bulkhead fitting and thread the angled end of the tank hose onto the bulkhead fitting. g205309 Figure 12 Bottom View 1. Hydraulic tank fitting 3. Bulkhead fitting 2. Tank hose Note: Ensure clearance for the coils by facing the angled end and hose out toward the right side of the machine, perpendicular to the frame. 2.
5 Installing the Fuse 4WD Switch Only Parts needed for this procedure: 1 Fuse (10 A) 1 Fuse decal Procedure g206710 Important: This procedure is necessary if you Figure 14 Fuse decal in C4 slot are going to install the 4WD switch. 1. Install the fuse into the C4 slot in the fuse box (Figure 13). 1. C5 Auxiliary slot Note: If another fuse is already occupying the C4 slot, place the fuse in any open auxiliary slot. g205019 Figure 13 1. C4 Slot 3. Auxiliary slot 2.
2. 6 Place the 4WD function decal over the drilled hole (Figure 16). Installing the Switch Parts needed for this procedure: 1 Toggle switch 1 Wire harness 1 4WD function decal Procedure 1. Drill a 13 mm (1/2 inch) hole in the center console; refer to Figure 15 for the appropriate orientation. Important: Use caution to not hit any components or wires underneath the console with the drill bit. g205310 Figure 16 3.
4. Secure the red wire labeled BYPASS ENGAGE SWITCH 2 to the override switch center terminal number 2 (Figure 17 and Figure 18). 5. Secure the gray wire labeled BYPASS ENGAGE SWITCH 1 to the override switch rear terminal number 1 (Figure 17 and Figure 18). Important: Incorrect switch wiring can result in damage to the hydraulic system. Verify that the wiring is installed correctly; refer to Testing the Four-Wheel Drive (page 18). g035968 Figure 19 1. Toggle switch 7. 2.
7 Installing the Wire Harness to the Machine 4WD Switch Only Parts needed for this procedure: 1 Wire harness 1 Relay 1 Self-tapping screw Procedure Important: This procedure is necessary if you are going to install the 4WD switch. 1. g274109 Figure 21 1. Hex locknut 2. Washer (15/32 inch) 3. Hex locknut 4. Toggle switch Route the wire harness along the existing harness into the opening in the frame behind the seat (Figure 22). g205030 Figure 22 Toolbox shell removed for clarity 1.
g205036 Figure 23 1. Entrance into right toolbox g205032 3. Rear of right console Figure 25 2. New wire harness 4. Plug the wire harness terminal into the auxiliary power wire leaving the fuse block as shown in Figure 24. 6. Unlatch the seat; refer to the Operator’s Manual for your machine. 7. Connect the relay to the relay mount with the provided self-tapping screw as shown in Figure 26.
g205034 Figure 27 1. Relay g205037 3. Wire harness continuing down to flow-divider manifold Figure 29 Bottom View 2. Relay connector 9. 1. Coil from existing wire harness 2. Connection 3-way manifold Route the 2 remaining wires that are not directly attached to the relay halfway along the existing wire harness under the frame until directly above the 3-way manifold (Figure 28). 11. 3. 3-way manifold 4.
8 Completing the Installation No Parts Required Completing the Installation (4WD Switch Only) 1. Connect the positive battery cable to the positive post of the battery; refer to the Operator’s Manual for your machine. g205040 Figure 31 Bottom View 1. Angled plug WARNING Incorrect battery-cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. 3. 3-way manifold 2. 3-way manifold coil 13.
Checking for Hydraulic Leaks Operation WARNING Operating Tips Hydraulic fluid escaping under pressure can penetrate skin and cause injury. • Make sure that all hydraulic fluid hoses and lines are in good condition and all hydraulic connections and fittings are tight before applying pressure to the hydraulic system. • Keep your body and hands away from pin hole leaks or nozzles that eject high-pressure hydraulic fluid. • Use cardboard or paper to find hydraulic leaks.
Declaration of Incorporation The Toro Company, 8111 Lyndale Ave. South, Bloomington, MN, USA declares that the following unit(s) conform(s) to the directives listed, when installed in accordance with the accompanying instructions onto certain Toro models as indicated on the relevant Declarations of Conformity. Model No. 31527 Serial No.
