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Toro SGR-6 Stump Grinder 138-3125 Belt Kit Installation Instructions PDF

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Summary of Content for Toro SGR-6 Stump Grinder 138-3125 Belt Kit Installation Instructions PDF

Form No. 3422-238 Rev B Belt Kit SGR-6 Stump Grinder Model No. 138-3121 Model No. 138-3125

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.

decal117-4979

117-4979

1. Rotating beltkeep guard in place.

decal119-4692

119-4692

1. Warningshut off the engine; use both hand holds to lift the grinder.

2018The Toro Company 8111 Lyndale Avenue South Bloomington, MN 55420

Register at www.Toro.com. Original Instructions (EN) Printed in the USA All Rights Reserved *3422-238* B

Installation Loose Parts Use the chart below to verify that all parts have been shipped.

Procedure Description Qty. Use

1 No parts required Prepare the machine.

2 No parts required Remove the existing belt and cutter wheel.

Wheel Tooth Kit 13 Cutter wheel 1 Install the wheel teeth.

Bearing assembly 2 Bolt (3/8 x 1-1/2 inches) 4 Washer (0.40 x 0.81 x 0.11 inches) 8 Locknut (3/8 inch) 4 Guard plate 1 Flange bolt (5/16 x 3/4 inch) 2 Carriage bolt (5/16 x 3/4 inch) 1 Locknut (5/16 inch) 3 Front pulley 1 Square key 1 Washer (0.27 x 0.89 x 0.09 inches) 1 Bolt (1/4 x 3/4 inch) 1 Clutch pulley 1 Washer (0.76 x 1.26 x 0.07 inches) 2 Washer (0.32 x 1.12 x 0.18 inches) 1 Washer (0.31 x 0.78 x 0.07 inches) 1 Bolt (5/16 x 1-1/8 inch) 1 Belt 1 Belt guard 1 Bolt (3/8 x 1 inch) 2

4

Washer (0.38 x 0.75 x 0.08 inches) 2

Install the cutter wheel and belt.

5 Decal 1 Install the decal (Model 138-3125 only).

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1 Preparing the Machine No Parts Required

Procedure 1. Park the machine on a level surface. 2. Engage the parking brake. 3. Shut off the engine. 4. Disconnect the spark plug wire from the spark

plug.

2 Removing the Existing Belt and Cutter Wheel No Parts Required

Procedure Note: Discard all removed parts unless indicated otherwise. 1. Remove the 2 bolts, 2 washers, and belt guard

(Figure 1).

g238745

Figure 1

1. Belt guard 3. Bolt3/8 x 1 inch (2) 2. Washer0.38 x 0.75 x

0.08 inches (2) 4. Belt

2. Loosen, or remove and retain, the 4 carriage bolts, 4 washers, and 4 locknuts securing the engine to the frame (Figure 2).

g238897

Figure 2 Front fasteners shown

1. Jam nut 3. Washer0.38 x 0.73 x 0.07 inches (4)

2. Locknut5/16 inch (4) 4. Carriage bolt5/16 x 1-1/2 inches (4)

3. Loosen the jam nut on the tensioner bolt (Figure 2).

4. Remove the belt (Figure 1). 5. Remove the clutch pulley (Figure 3).

Note: Remove and retain the square key for later installation.

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Figure 3

1. Square key 4. Washer (0.39 x 1.25 x 0.12 inches)

2. Clutch pulley 5. Washer (0.31 x 0.75 x 0.08 inches)

3. Washer (0.81 x 2.00 x 0.15 inches)

6. Bolt (5/16 x 3/4 inch)

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6. Remove the front pulley (Figure 4).

g238744

Figure 4

1. Set screw 3. Square key 2. Front pulley

7. Remove the guard plate (Figure 5).

g238746

Figure 5

1. Flange bolt5/16 x 3/4 inch (3)

3. Guard plate

2. Locknut5/16 inch (3)

8. Remove the cutter wheel (Figure 6).

g238743

Figure 6

1. Bolt3/8 x 1-1/2 inches (4)

4. Locknut3/8 inch (4)

2. Washer0.40 x 0.81 x 0.11 inches (8)

5. Cutter wheel

3. Bearing assembly (2)

3 Installing the Wheel Teeth Parts needed for this procedure:

1 Wheel Tooth Kit

1 Cutter wheel

Procedure Refer to the Installation Instructions for the kit to install the wheel teeth to the cutter wheel.

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4 Installing the Cutter Wheel and Belt Parts needed for this procedure:

2 Bearing assembly

4 Bolt (3/8 x 1-1/2 inches)

8 Washer (0.40 x 0.81 x 0.11 inches)

4 Locknut (3/8 inch)

1 Guard plate

2 Flange bolt (5/16 x 3/4 inch)

1 Carriage bolt (5/16 x 3/4 inch)

3 Locknut (5/16 inch)

1 Front pulley

1 Square key

1 Washer (0.27 x 0.89 x 0.09 inches)

1 Bolt (1/4 x 3/4 inch)

1 Clutch pulley

2 Washer (0.76 x 1.26 x 0.07 inches)

1 Washer (0.32 x 1.12 x 0.18 inches)

1 Washer (0.31 x 0.78 x 0.07 inches)

1 Bolt (5/16 x 1-1/8 inch)

1 Belt

1 Belt guard

2 Bolt (3/8 x 1 inch)

2 Washer (0.38 x 0.75 x 0.08 inches)

Procedure 1. Slide a bearing assembly onto the shaft on

both sides of the cutter wheel and follow the instructions provided with the bearing assemblies (Figure 7).

g238743

Figure 7

1. Bolt3/8 x 1-1/2 inches (4)

4. Locknut3/8 inch (4)

2. Washer0.40 x 0.81 x 0.11 inches (8)

5. Cutter wheel

3. Bearing assembly (2)

2. Secure the bearings to the frame of the machine using 4 bolts (3/8 x 1-1/2 inches), 8 washers (0.40 x 0.81 x 0.11 inches), and 4 locknuts (3/8 inch) as shown in Figure 7. Torque to 60 to 76 Nm (44 to 56 ft-lb).

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3. Install the guard plate using 2 flange bolts (5/16 x 3/4 inch), 1 carriage bolt (5/16 x 3/4 inch) and 3 locknuts (5/16 inch) as shown in Figure 8.

g239138

Figure 8

1. Flange bolt5/16 x 3/4 inch (2)

3. Guard plate

2. Locknut5/16 inch (3) 4. Carriage bolt (5/16 x 3/4 inch)

4. Apply thread-locking compound to the bolt (1/4 x 3/4 inch) and use the bolt, washer (0.27 x 0.89 x 0.09 inches), and square key to install the front pulley, with the pulley face flush with the end of the shaft (Figure 9). Torque the bolt to 13.6 Nm (120 in-lb).

g239137

Figure 9

1. Set screw 4. Washer (0.27 x 0.89 x 0.09 inches)

2. Square key 5. Front pulley 3. Bolt (1/4 x 3/4 inch)

5. Apply thread-locking compound to the set screw, and secure the pulley with the set screw, washer (0.27 x 0.89 x 0.09 inches), and bolt (1/4 x 3/4 inch) as shown in Figure 9. Torque the setscrew to 14.9 to 17.6 Nm (132 to 156 in-lb).

6. Apply thread-locking compound to the bolt (5/16 x 1-1/8 inch) and use the bolt, 2 washers (0.76 x 1.26 x 0.07 inches), 1 washer (0.32 x 1.12 x 0.18 inches), 1 washer (0.31 x 0.78 x 0.07 inches) and the square key to install the clutch pulley (Figure 10). Torque the bolt to 22.6 to 28.2 Nm (200 to 250 in-lb).

g265325

Figure 10

1. Washer (0.76 x 1.26 x 0.07 inches)

4. Washer (0.32 x 1.12 x 0.18 inches)

2. Clutch pulley 5. Washer (0.31 x 0.78 x 0.07 inches)

3. Square key 6. Bolt (5/16 x 1-1/8 inch)

7. Install the belt around the front pulley and clutch pulley (Figure 13).

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8. Tighten the jam nut on the tensioner bolt (Figure 11).

g247150

Figure 11 Front fasteners shown

1. Jam nut 3. Washer0.38 x 0.73 x 0.07 inches (4)

2. Locknut5/16 inch (4) 4. Carriage bolt5/16 x 1-1/2 inches (4)

9. Push down on the belt to check the tension (Figure 12). You should be able to push the belt down 5.6 mm (0.22 inch) using 3.4 kg (7.4 lb) of force. Adjust the tensioner bolt as necessary to tighten or loosen the belt.

g240299

Figure 12

1. Belt without force 2. Belt with 3.4 kg (7.4 lb) of force

10. Install or tighten the fasteners securing the engine to the frame (Figure 11).

Note: Ensure that the engine does not twist in the chassis and the clutch pulley is aligned with the belt.

11. Install the belt guard using 2 bolts (3/8 x 1 inch) and 2 washers (0.38 x 0.75 x 0.08 inches) as shown in Figure 13.

g247149

Figure 13

1. Belt guard 3. Bolt (3/8 x 1 inch) 2. Washer0.38 x 0.75 x

0.08 inches (2) 4. Belt

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5 Installing the Decal Model 138-3125 Only

Parts needed for this procedure:

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