Installing The 170-2400 Steering Column Assembly Kit{4310} Caterpillar

Off-Highway Trucks:

69D (PIN: 9SS1-UP)

73D (PIN: 1GW1-UP)

768C (PIN: 02X00371-UP)

769C (PIN: 01X05474-UP)

769D (PIN: 5TR1-UP)

773B (PIN: 63W03297-UP)

773D (PIN: 7ER1-UP)

777C (PIN: 4XJ1-104)

777D (PIN: 3PR1-UP)

777D (PIN: 2YW1-UP)

785 (PIN: 8GB1-693)

785B (PIN: 6HK1-UP)

789 (PIN: 9ZC1-651)

789B (PIN: 7EK1-UP)

793 (PIN: 3SJ1-16)

793B (PIN: 1HL1-UP)

793C (PIN: 4AR1-UP) Quarry Trucks

771C (PIN: 3BJ1-UP)

771D (PIN: 6JR1-UP)

775B (PIN: 7XJ1-UP)

775D (PIN: 6KR1-UP) Tractor

772B (PIN: 64W181-UP)

776C (PIN: 2TK1-UP)

776D (PIN: 5ER1-UP)

784B (PIN: 5RK1-UP)

Introduction

This Special Instruction provides the information that is necessary to install the 170-2400 Assembly Kit . The Assembly Kit helps prevent steering wheel rattle.

The procedures in this publication are used to ensure proper installation of the 170-2400 Assembly Kit . Perform the procedures and order the parts after you have read this publication.

The suggested tools and equipment should be readily available for installation. If the tools and equipment are not available, assembly will be more difficult and more time will be necessary to complete the assembly.

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Personal injury or death can result from improper assembly procedures. Do not attempt any assembly until you have read and understand the assembly instructions.

Removal of Steering Column

1. Remove the cab front cover.

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Illustration 1	g00551663

2. Disconnect the heater hose. Position the heater hose away from the steering column.

   Note: Plug all of the connections in order to prevent contamination.

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Illustration 2	g00551675
Remove the set screw in the steering column.

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Illustration 3	g00551678

3. Remove the set screw. Push the collar upward. Remove the dowel.

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Illustration 4	g00551707

4. Disconnect the wire harness.

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Illustration 5	g00551746

5. Remove the two set screws and the two brake handles.

   Note: The two set screws should clear the shaft assemblies before you remove the brake handles.

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Illustration 6	g00551751

6. Remove seven screws that hold the two steering column covers. Remove the two covers.

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Illustration 7	g00551861

7. Remove the four mounting bolts. Carefully remove the steering column.

Disassembly of the Steering Column

Illustration 8	g00551862

1. Remove the button assembly from the steering wheel.

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Illustration 9	g00551863

2. Remove the nut inside the steering wheel.

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Illustration 10	g00551864

3. Remove the steering wheel from the steering column. Use the 8S-2264 Puller Group to remove the steering wheel.

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Illustration 11	g00551865

4. Remove the seal. Replace the seal if the seal is damaged.

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Illustration 12	g00551866

5. Remove the three screws and the switch assembly.

   Note: Mark the wires of the switch assembly for reference. Replace the wire harness, if necessary.

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Illustration 13	g00551920

6. Remove the shaft assembly from the steering column.

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Illustration 14	g00551923

7. Remove the bushing and the pin assembly. Remove the retaining ring with the 1U-5429 Retaining Ring Pliers . Remove the washers, the spring, and the bushing from the pin shaft.

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Illustration 15	g00551933

8. Remove the spring from the steering column.

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Illustration 16	g00551934

9. Remove the three retaining rings with the 1P-1853 Retaining Ring Pliers . Place the steering column in a vise and remove the three screws. Remove the inner steering column.

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Illustration 17	g00554966
Remove the spacer, the top bearing and the bottom bearing.

10. Remove the spacer, the top bearing, and the bottom bearing from the inner steering column.

Reassembly of The Steering Column Using The 170-2400 Assembly Kit

Illustration 18	g00553721

Illustration 19	g00553724

1. Insert the inner steering column into a vise. Insert one 170-0624 Sleeve Bearing (5) from the top of the inner steering column.

2. Insert the other 170-0624 Sleeve Bearing (5) from the top of the inner steering column.

   Note: The two 170-0624 Sleeve Bearings (5) fit flush with the end of the inner bore.

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Illustration 20	g00553740

3. Install the 170-0623 Spherical Bearing (4) into the top of the inner steering column. The 170-0623 Spherical Bearing (4) fits flush with the top of the inner steering column.

4. Take the inner steering column out of the vise. Place the opposite end of the inner steering column upward in the vise.

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Illustration 21	g00553824

5. Insert the 170-0625 Sleeve Bearing (6) into the bottom of the inner steering column. The 170-0625 Sleeve Bearing (6) fits flush with the top of the inner steering column bore.

6. Install the inner steering column into the steering column.

7. Apply 4C-4030 Thread Lock to the threads of the three screws. Install the three screws.

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Illustration 22	g00551940

8. Use a feeler gauge to verify the clearances on both sides of the inner steering column. The clearances are approximate on both sides.

9. Install the three retaining rings with the 1P-1853 Retaining Ring Pliers .

10. Install the spring into the steering column.

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Illustration 23	g00553873

11. Install the 170-0621 Bushing (2) onto the pin assembly. Install the 170-0620 Sleeve Bearing (1) onto the pin assembly. Insert the 170-0620 Sleeve Bearing (1) into the 170-0621 Bushing (2) .

12. Install the spring and the washers. Install the retaining ring with the 1U-5429 Retaining Ring Pliers .

13. Install the 170-0622 Sleeve Bearing (3) into the pin assembly bore. The pin assembly bore is located in the outer steering column housing.

    Note: The 170-0622 Sleeve Bearing (3) should bottom out in the pin assembly bore.

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Illustration 24	g00553879

14. Apply 4C-4030 Thread Lock to the threads of the 170-0621 Bushing (2) .

15. Install the pin assembly.

16. Install the shaft assembly into the steering column.

17. Install the switch assembly onto the steering column. Use three screws to secure the switch assembly.

18. Install the seals over the shaft and the wiring.

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Illustration 25	g00551863

19. Install the steering wheel. Secure the steering wheel with the center nut. Torque the nut to 48 ± 3.4 N·m (35 ± 2 lb ft).

20. Install the button assembly to the steering wheel.

Reinstallation of the Steering Wheel

Illustration 26	g00551997

Illustration 27	g00552051

1. Position the steering column over the shafts. The set screw hole needs to face the front of the machine.

Note: A second person is needed to assist in this operation.

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Illustration 28	g00551678

2. Align the holes. Install the dowel into the steering column.

3. Position the collar over the dowel. Apply 4C-4030 Thread Lock to the threads of the set screw. Install the set screw. The set screw holds the collar in place.

4. Reconnect the wire harness.

5. Reconnect the heater hose.

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Illustration 29	g00551861

6. Install the four mounting bolts to the base of the steering column.

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NOTICE
The steering column must be positioned properly in order to prevent the binding of the steering shaft assembly when the tilt wheel is in the forward position.

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Illustration 30	g00552110

7. The steering column may need adjustment. The following procedure will allow you to make the adjustments.
   • Place the steering column in the fully forward position.

   • Measure the distance (A) between the bottom of the steering wheel to the top of the steering column. The distance of Dimension (A) should equal the following value: 2.5 ± 1 mm (0.10 ± 0.04 in). Loosen the bolts (B) at the bottom of the steering column. Pull up or push down on the steering wheel for proper adjustment.

   • Torque the bolts (B) to 47 ± 9 N·m (34.6 ± 6.6 lb ft).

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Illustration 31	g00551751

8. Install the two side covers with the seven screws.

9. Install the cab front cover.