MANIFOLD A 7G2538 - Caterpillar

Illustration 1 g02725034
Typical example
(1) Steering cylinder
(2) Outer steering arm
(3) Center steering arm
(4) Steering link
Attach the magnetic base of a 8T-5096 Dial Indicator Group to the steering link. The dial indicator will allow the horizontal movement of the ball stud to be measured.
Measure the horizontal wear of the ball studs and outer bearing races on the outside ends of the linkage, by placing the dial indicator against the side of the outer steering arm.
Set the dial indicator to zero.
Steer the front wheels in both directions. Record the amount of horizontal play from the dial indicator. The dial indicator indicates the amount of wear in the ball studs and the outer bearing races. Note: It is only necessary to move the steering wheel in each direction enough to absorb any slack that may have worn into the ball stud and outer race. When the front wheels have moved any amount either direction. The steering linkage has to moved enough to register the horizontal wear on the dial indicator.
Measure the horizontal wear of the ball studs and outer bearing races on the inside ends (center) of the linkage by placing the dial indicator against the side of the center arm.
Set the dial indicator to zero.
Steer the front wheels in both directions. Record the amount of horizontal play from the dial indicator.
Repeat this procedure in order to measure the ball studs and outer bearing races for the other steering link.
Repeat this procedure in order to measure the ball studs and outer bearing races for both steering cylinders.
The maximum amount of horizontal wear is 1.02 mm (0.040 inch). If any of the measurements exceed this limit, replace the worn ball studs and the outer bearing races.
Visually inspect each outer steering arm and the center steering arm for cracks. If necessary, use dye penetrant to confirm the presence of any suspected cracks. If a crack is confirmed, replace the damaged part immediately.
Inspect all of the covers for the ball studs. Inspect all grease fittings and seals. Replace any worn components and any damaged components. Note: Properly lubricate the steering linkage in order to ensure the durability of components. The steering linkage must be free of contaminants in order to ensure the durability of components. For more information on the inspection or replacement of the steering linkage, contact your Cat dealer.