Toro 100-4744, 100-4745, 100-4746, 100-4750, 100-4751 Installation Instructions

Form No. 3324-163

Flush-face Hydraulic Coupler Kit

for Dingo Traction Units and Attachments

Part No.: 100-4744, 100-4745,

100-4746, 100-4750, and 100-4751

DESCRIPTION QTY. USE

Adapter Flush-face coupler, female Flush-face coupler, male Coupler cover, male (traction unit kits only) Coupler cover, male (traction unit kits only)

1. If you are installing a kit onto a traction unit, stop the

engine, remove the key, and move the auxiliary hydraulics lever forward, rearward, and back to neutral.

2. Allow the traction unit or attachment to cool

completely.

POTENTIAL HAZARD

• Quick couplers, hydraulic lines/valves, and

hydraulic fluid may be hot.

WHAT CAN HAPPEN

• Contact with hot hydraulic components or

fluid may cause burns.

HOW TO AVOID THE HAZARD

• Allow the traction unit or attachment to

cool before touching hydraulic components.

2 1 1 1 1

Install on traction unit or attachment

POTENTIAL HAZARD

• Hydraulic fluid escaping under pressure

can penetrate skin and cause injury.

WHAT CAN HAPPEN

• Fluid accidentally injected into the skin

must be surgically removed within a few hours by a doctor familiar with this form of injury or gangrene may result.

HOW TO AVOID THE HAZARD

• Keep body and hands away from pin hole

leaks or nozzles that eject high pressure hydraulic fluid.

• Use cardboard or paper to find hydraulic

leaks, never use your hands.

3. Position a drip pan under the hydraulic couplers you

are replacing and have several rags ready to wipe up any spills.

Installation

Instructions

Printed in USA

The Toro Company – 1999

Installation Instructions

4. Thread an adapter into both the new male and female,

flush-face couplers (Fig. 1).

Figure 1

1. Adapter

2. Female, flush-face coupler

3. Male, flush-face coupler

5. Torque the adapter/coupler assemblies to 100 ft-lb

(135.6 N⋅m).

6. Remove the old female coupler from the hose.

7. Install the female coupler assembly onto the hose as

follows (refer to Figure 2 during this procedure):

m–4764

Figure 2

1. Coupler assembly

2. Hose end

3. Protective cover (traction units only)

8. Repeat steps 6 and 7 to install the male, flush-face

coupler.

9. If you are installing a kit on a traction unit, install the

protective covers onto the couplers (Fig. 2).

10.Wipe up any spills.

For Kit Number 100-4744 and 100-4750:

• Thread the assembly onto the hose end.

• Torque the assembly to 60 ft-lb (81 N⋅m).

For Kit Number 100-4746 and 100-4751:

• Thread the assembly onto the hose end.

• Torque the assembly to 67 ft-lb (90 N⋅m).

For Kit Number 100-4745:

• Clean all old pipe thread sealant from the threads

on the hose.

• Apply pipe thread sealant to the hose threads.

Do not apply sealant to the first thread.

• Thread the assembly onto the hose end until it is

finger-tight.

• Turn the assembly onto the hose end 2 to 3

complete turns.

• Allow the sealant to cure according to the

manufacturer’s instruction before using the attachment.