Toro 104-5945 Installation Instructions

Form No. 3327-813

Backhoe Pressure Kit

Dingo Backhoe with Dingo 420TX or 425TX Traction Units

Part No. 104-5945

Installation Instructions

Warning

Hydraulic fluid escaping under pressure can penetrate skin and cause injury. Fluid 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.

• 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,

never use your hands.

• Wear eye protection while performing this

procedure.

Loose Parts

Description Qty. Use

Check valve Adapter Hose Elbow fitting Cable tie

1 1 2 2 1

Caution

Hydraulic couplers, hydraulic lines/valves, and hydraulic fluid may be hot. If you contact hot components you may be burned.

• Wear gloves when operating the hydraulic

couplers.

• Allow the traction unit to cool before touching

hydraulic components.

• Do not touch hydraulic fluid spills.

Installing the new hoses

Installing the Kit

1. Disconnect the backhoe hydraulic couplers from the

traction unit.

2. Remove the 6 bolts securing the controls access panel

and remove the panel (Fig. 1).

3. Prepare a pan near the back of the backhoe to catch

oil.

4. Cut the plastic tie securing the hoses.

 2001 by The Toro Company 8111 Lyndale Avenue South Bloomington, MN 55420-1196

Figure 1

1. Controls access panel

5. Remove the female coupler and 90 deg. fitting from

the hose, draining the oil into the pan (Fig. 2).

6. Save the female coupler and discard the 90 deg.

fitting.

Printed in the USA

m–4587

10.Install the elbow joint of a new hose to the check valve

(Fig. 3).

11. Route the hose through the backhoe body (Fig. 3).

12.Install a new 90 deg. fitting to the end of the hose

(Fig. 3).

Important Ensure that you orient the 90 deg. fitting so

that the coupler will be facing the traction unit when you connect the hose to the traction unit couplers.

m-5664

Figure 2

1. Control block

2. Female coupler

3. Male coupler

4. Remove and discard these components

7. Pull the female hose through the backhoe body to the

front of the backhoe.

8. Disconnect and discard the hose, check valve, and

fittings from the control block (Fig. 2).

9. Install the check valve into the opening in the control

block from where you removed the hose. The arrow on the valve must point away from the control block (Fig. 3).

13.Install the female coupler removed previously to the

elbow fitting on the hose (Fig. 3).

14.Remove the male coupler and 90 deg. fitting from the

other hose, draining the oil into the pan (Fig. 2).

15.Save the male coupler and discard the 90 deg. fitting.

16.Pull the male hose through the backhoe body to the

front of the backhoe.

17.Disconnect and discard the hose and fittings from the

control block (Fig. 2).

18.Install the new adapter into the opening in the control

block from where you removed the hose (Fig. 3).

19.Install the elbow joint of the new hose to the new

adapter (Fig. 3).

20.Route the hose through the backhoe body (Fig. 3).

21.Install a new 90 deg. fitting to the end of the hose

(Fig. 3).

Important Ensure that you orient the 90 deg. fitting so

that the coupler will be facing the traction unit when you connect the hose to the traction unit couplers.

22.Install the male coupler removed previously to the

elbow fitting on the hose (Fig. 3).

1. Control block

2. Female coupler

3. Male coupler

4. Check valve

m-5665

Figure 3

5. Hoses

6. Adapter

7. Elbow fittings

23.Secure the hoses using the plastic tie provided.