320GX Hydraulic Excavator Machine Systems Upper Frame and Undercarriage Frame - Separate 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

Position - To locate the desired or intended location

Operation and Maintenance Manual - Refer to a procedure in an Operation and Maintenance Manual

Remove - To take off or eliminate component

Repeat - To perform once more. Iterate to do, make, or perform again

Replace - To restore, or return to a former or proper place

Attach - To connect together or to fasten on something.

Disconnect Line (Hose Disconnect) - To remove from a fluid line (hydraulic, fuel, air, brake, refrigerant, and so on) to separate fluid transmission connectors

Lower - To drop to a reduced energy position. To reduce the level of material in a container. To cause to descend.

Lift-Raise - To raise to a higher position, move, or bring something upward.

Support - To bear the weight of an object.

Weight - A heavy object, especially one being lifted or carried

Cut - To divide or terminate. To reduce the length of an object.

Disconnect - To remove or separate in an electrical circuit.

Mark - To make a visible trace or impression on something.

Move - To change position

Level - To position a surface in a horizontal orientation. To position in vertical dimension. To align to assist positioning a surface in a horizontal orientation.

Inspect - To confirm, inspect, look, or observe to confirm or assure accuracy, conformance.

Separate - To move or be apart.

Separate

Table 1

Required Tooling
Tool	Part Number	Part Description	Qty
A	504-9790	Lift Group	3
	504-9794	Tool Group	1
B	FT-3091	Beam	1
C	1U-7499	Stand - 12T Support	1
	1U-7500	Tube - Extension	1
D	228-4532	Link Assembly - Boom Cylinder	1
E	128-5049	Guide Stud	1

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2. Position stick on tooling (A) , as shown. Ensure the eye of pin hole from the stick is level with the bottom of the frame to enable level lifting. Release system hydraulic pressure and drain hydraulic oil. Refer to Operation and Maintenance Manual, M0117473, "320 GX Excavator", "Hydraulic System Oil - Change".
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4. Drain the final drive oil. Refer to Operation and Maintenance Manual, M0117473, "320 GX Excavator", "Final Drive Oil - Change".
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7. Refill with oil for towing. Refer to Operation and Maintenance Manual, M0117473, "320 GX Excavator", "Final Drive Oil - Change".
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15. Attach a suitable lifting device to Tooling (D). Connect the bottom of the beam first. Raise the beam and connect the beam to the boom pin. Adjust the jack to remove the slack between the eyes of the beam and the pins.
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    View from underside of the undercarriage assembly.

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    Typical Example

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27. The weight of Tooling (B) is approximately 265 kg (584 lb). The weight of the upper frame is approximately 12000 kg (26455 lb).
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32. The weight of the upper frame is approximately 12000 kg (26455 lb).

    Note: Ensure that the upper frame assembly is lifted in a LEVEL position.

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    Note: Inspect to ensure that the upper frame assembly is completely clear of the undercarriage before proceeding.

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35. Use a suitable towing device to pull the undercarriage away from the upper frame assembly.