Toro 106-7580, 106-7581 Installation Instructions

Brake Kit

Dingo TX 420 & 425 Compact Utility Loader

Part No. 106–7580 & 106–7581

Installation Instructions

Loose Parts

Note: Determine the left and right sides of the machine from the normal operating position.

Description Qty. Use

Drive wheel Brake rim Wheel hub

Brake plate 1 Removing the brake assembly Brake block 1 Installing the brake block

1 1 1

Removing the rear wheel

Form No. 3329-412

Hex socket screw, 3/8 x 1-1/4 inch Lock washer, 3/8 inch

Found in 106-7580 only

Found in 106-7581 only

This kit requires parts to be welded to the chassis. Welding can expose you to a number of hazards including toxic fumes, smoke, dust, burns, fires, explosions, electric shock, radiation, noise, and heat stress which can cause serious injury and death.

• Welding portions of the kit should be performed by a trained welder.

• Weld in a adequately ventilated area with suitable fire extinguishing equipment readily

available.

• Weld in a firesafe workplace. This can be accomplished by welding behind firesafe barriers or

curtains and on concrete or other firesafe flooring. Remove or protect all combustibles from ignition sources.

• Wear proper protective clothing when welding, such as fire retardant coveralls. Protect your

hands with leather gauntlet gloves. Feet should be protected by high top leather shoes, preferably safety shoes.

• Protect your eyes when welding. A welding helmet or hand shield with filter plate and cover

plate is mandatory to protect the eyes while welding. Transparent goggles or safety glasses should be worn at all times.

Installing the brake assembly

Warning

 2003 by The Toro Company 8111 Lyndale Avenue South Bloomington, MN 55420-1196

Printed in the USA

Installation

Preparing the Unit

1. Lower the loader arms, stop the engine, and remove the

key.

2. Open the rear access cover and disconnect the negative

battery cable.

4. Push the tension wheel toward the rear of the unit to

move the fork tube against the frame (Fig. 2). (If it does not touch the frame, continue turning the tensioning screw until it does.)

5. Begin removing the track at the top of the tension

wheel, peeling it off of the wheel while rotating the track forwards.

6. When the track is off of the tension wheel, remove it

from the drive wheel and road wheels (Fig. 2).

Removing the Track (Dingo TX 420)

1. Lift/support the side of the unit to be worked on so that

the track is three to four inches (7.6 to 10 cm.) off of the ground.

2. Remove the tensioning screw locking bolt and nut

(Fig. 1).

1. Locking bolt

2. Tensioning screw

3. Using a 1/2 inch drive socket, release the drive tension

by turning the tensioning screw clockwise (Fig. 2).

m–4774

1. Track

2. 1/2 in. socket

3. Tension wheel

4. Fork tube

Figure 1

Figure 2

Dingo TX 420

m–4747

3. Tension tube

4. Tension wheel

5. Track lug

6. Drive wheel

7. Wheel spacer

8. Road wheels

7. Repeat steps 1–6 for the opposite track when installing

a second brake kit.

Removing the Track (Dingo TX 425)

1. Lift/support the side of the unit to be worked on so that

the track is three to four inches (7.6 to 10 cm.) off of the ground.

2. Remove the tensioning screw locking bolt and nut (Fig.

1).

3. Using a 1/2 inch drive socket, release the drive tension

by turning the tensioning screw clockwise (Fig. 3).

Figure 3

Dingo TX 425

1. Track

2. 1/2 in. socket

3. Tension wheel nut

4. Outer tension wheel

5. Fork tube

6. Track lug

7. Drive wheel

8. Wheel spacer

9. Road wheels

4. Push the tension wheel toward the rear of the unit to

move the fork tube against the frame (Fig. 3). (If it does not touch the frame, continue turning the tensioning screw until it does.)

5. Remove nut securing outer tension wheel and remove

wheel.

m-6706

6. Begin removing the track at the top of the tension

wheel, peeling it off of the wheel while rotating the track forwards.

Removing the Rear Drive Wheel (Dingo TX 425)

7. When the track is off of the tension wheel, remove it

from the drive wheel and road wheels (Fig. 3).

8. Repeat steps 1–6 for the opposite track when installing

a second brake kit.

Removing the Rear Wheel (Dingo TX 420)

1. Remove the cotter pin and wheel nut. Remove the rear

wheel assembly from the motor shaft. (Fig. 4)

1. Remove the cotter pin and motor wheel nut. Remove

the rear wheel assembly from the motor shaft. (Fig. 5)

m–6668

Figure 5

1. Cotter pin

2. Wheel nut

3. Bolt, 1/2 x 1-3/4 inch

4. Nut, 1/2 inch

5. Hex socket screw, 1/2 x 1-1/2 inch

6. Spacer, short

7. Spacer, long

8. Brake rim

9. Drive wheel

10. Wheel hub

11. Wheel plate

12. Motor shaft

m–6667

Figure 4

1. Cotter pin

2. Wheel nut

3. Bolt, 3/8 x 2 inch

4. Nut, 3/8 inch

5. Hex socket screw, 1/2 x 1-1/2 inch

6. Spacer

7. Drive wheel

8. Wheel plate

9. Motor shaft

2. Disassemble the rear wheel by removing the 22 hex socket screws and spacers securing the outer ring of the wheel assembly, and then remove the six bolts and nuts on the inner ring of the wheel assembly (Fig. 4).

3. Save the fasteners, spacers, and the wheel plates.

4. Discard the drive wheel.

5. Assemble the wheel installing the new drive wheel.

6. Torque the hex socket screws and the inner bolts to 27

to 33 ft-lb (37 to 45 N⋅m).

7. Set the wheel assembly, cotter pin, and wheel nut aside.

8. Repeat steps 1-7 for opposite side when installing a

second brake kit.

2. Disassemble the rear wheel by removing the 22 hex

socket screws, long spacers, and short spacers securing the outer ring of the wheel assembly, and then remove the four bolts and nuts on the inner ring of the wheel assembly (Fig. 5).

3. Save the fasteners, spacers, drive wheels, and wheel

plate.

4. Discard the brake rim assembly and wheel hub.

5. Assemble the wheel, installing the new brake rim

assembly and wheel hub.

6. Torque the hex socket screws and the inner bolts to 67

to 83 ft-lb (91 to 113 N⋅m).

7. Set the wheel assembly, cotter pin, and wheel nut aside.

8. Repeat steps 1-7 for opposite side when installing a

second brake kit.

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