784C and 785C Off-Highway Trucks Machine Systems Caterpillar

Steering Link - Remove and Install

Usage:

785C 1HW

Removal Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	176-6538	Spanner Wrench As	1
B	5S-6084	Socket (3-1/2 inch)	1
	478-3993	Hydraulic Torque Wrench	1
	385-3995	Hydraulic Pump Gp	1
	384-8916⁽¹⁾	Hydraulic Pump Gp	1
C	231-4904	Wedge	1
D	1U-7505	Hydraulic Jack	1
D	485-8004	Support Stand	1
E	-	Retaining Ring Pliers	1

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⁽¹⁾	Available Substitute

Note: Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal components.

Note: Put identification marks on all hose assemblies and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss and this helps to prevent contaminants from entering the system.

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Illustration 1	g00612643

Disconnect lubrication hose (1) from the plug (2) at each end of the steering link .
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Illustration 2 g00939746
Use Tooling (E) to remove retaining ring (3). Remove retaining ring (3) and plug (2) at each end of the steering link (4).
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Illustration 3 g00939909
Install Tooling (A) to hold the ball stud (5) while the locknut (6) is being loosened.
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Illustration 4 g00939917

Note: Do not remove the locknut (6) completely from the ball stud (5) until the ball stud has been broken loose from the taper.
Use Tooling (B) to loosen the locknut (6). Loosen the locknut until the locknut is even with the bottom of the ball stud (5).
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Illustration 5 g00941189

Shown with hose for photo purposes
Position Tooling (C) between the steering link (4) and the steering arm (7), as shown.
Strike Tooling (C) with a hammer.
Repeat Steps 3 through 6 to loosen ball stud (6) at the opposite end of the steering link (4).
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Illustration 6 g00939770
Position Tooling (D) to support the weight of steering link (4). The weight of the steering link is approximately 115 kg (254 lb).
Remove locknut (6) from each ball stud (5).
Remove steering link (4).
Repeat Steps 1 through 10 to remove the opposite steering link.

Installation Procedure

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Table 2
Required Tools
Tool	Part Number	Part Description	Qty
A	176-6538	Spanner Wrench As	1
B	5S-6084	Socket (3-1/2 inch)	1
	478-3993	Hydraulic Torque Wrench	1
	385-3995	Hydraulic Pump Gp	1
	384-8916⁽¹⁾	Hydraulic Pump Gp	1
D	1U-7505	Hydraulic Jack	1
D	485-8004	Support Stand	1
E	-	Retaining Ring Pliers	1
F	-	Loctite Graphite-50	-

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⁽¹⁾	Available Substitute

Note: Cleanliness is an important factor. Before the installation procedure, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble.

Note: Inspect all parts. If any parts are worn or damaged, use new parts.

Apply Tooling (F) to the threads and on the taper of ball stud (5).
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Illustration 7 g00943875
Support the weight of steering link (4) with Tooling (D). The weight of the steering link is approximately 115 kg (254 lb).
Install steering link (4).
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Illustration 8 g00943956
Apply Tooling (F) to the face of locknut (6). Install locknut (6) on ball stud (5), as shown.
Repeat Step 4 for the ball stud on the opposite end of steering link (4).
Install Tooling (A) to hold the ball stud while the locknut is being tightened.
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Illustration 9 g00943887
Use Tooling (B) to install locknut (6). Tighten the locknut to a torque of 2060 ± 100 N·m (1519 ± 74 lb ft).
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Illustration 10 g00943997
Install plug (2). Use Tooling (E) to install retaining ring (3) onto the ball stud. Install retaining ring (3).
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Illustration 11 g00944031
Connect lubrication hose (1) to the plug (2).
Repeat Steps 6 through 9 to complete the installation of steering link (4).
Repeat Steps 1 through 10 to install the opposite steering link.
After the steering links are installed, check the front wheel alignment. Refer to Testing and Adjusting, "Front Wheel - Align" for the correct procedure.