320GX Hydraulic Excavator Machine Systems Boom Bearings and Seals - Remove and Install Caterpillar

General Information

Graphic Color Description

Color-coding of targeted components, or sections of a part, is used to communicate a required action.

This table shows the different colors and what is represented when use in a graphic.

(Blue) The primary component of focus for a particular step. Target or primary component to be installed or removed. Installation implied unless otherwise noted with a symbol.

(Yellow) Components disconnected, connected, or placed aside for access, but not removed. Highlighted areas of adjustment, inspection, or special attention.

(Cyan) Special tools or other equipment required for use in a particular step.

(Light Gray) Components used for reference.

(Magenta) Any fastener, retainer, or electrical connector used to install or remove the primary component.

Visual Service Procedures Symbols per J2892

Remove - To take off or eliminate component

Install - To set up for use or service

Attach - To connect together or to fasten on something.

Cool - To reduce the temperature of an object or system.

Apply Sealant - To apply a sealing material having the specified thickness or diameter.

Removal Procedure

Start By:

1. Remove the boom.

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When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death.

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2. 
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3. Repeat Steps 1 and 2 for the opposite side.

Installation Procedure

Note: Make sure that the bores for the sleeve bearings are free of paint and grease prior to the installation of the sleeve bearings.

Note: Make sure that the bearings are installed in the bore so that the identification numbers of the bearings are facing outward.

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2. Use Tooling (B) to drive the sleeve bearing into the bearing bore to the depth of dimension (D) 9.5 ± 0.8 mm (0.37 ± 0.03 inch).
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4. Repeat Steps 1 and 2 for opposite side.

End By:

1. Install the boom.