320D2 GC Excavator Machine Systems Upper Frame and Undercarriage Frame

Upper Frame and Undercarriage Frame - Separate

320D2 GC Excavator Machine Systems [M0066452]

320D2 GC Excavator Machine Systems Boom Bearings and Seals - Remove and Install

320D2 GC Excavator Machine Systems Upper Frame and Undercarriage Frame - Connect

FRAME AND BODY

FRAME GP

320D2 GC Excavator Machine Systems Upper Frame and Undercarriage Frame - Separate

320D2 GC Excavator Machine Systems Upper Frame and Undercarriage Frame - Connect

1.1. Separate Procedure

Separate Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	-	Guide Bolts M20 x 2.5 by 250mm	2
B	-	Loctite RTV Clean Silicone Sealant
C	350-7768	Electric Hydraulic Pump Gp	1
	350-7769⁽¹⁾	Electric Hydraulic Pump Gp	1
	4C-6486	Stand	1
	8S-7641	Tube	1
	8S-7625	Collar	1
	8S-7615	Pin	1
	396-9840	Hydraulic Cylinder	1
D	422-2352	Jack Stand Gp	1
E	228-4532	Boom Cylinder Link Gp	1
F⁽²⁾	9U-7536	Lift Stand	2
	447-0910	Electric Hydraulic Pump Gp (115V)	1
	447-0911	Electric Hydraulic Pump Gp (230V)	1
F1	OR
	504-9826	Lift Gp (50/60 Hz)⁽³⁾	2
	504-9827	Lift Gp (50/60 Hz)⁽⁴⁾	2
G	-	Guide Stud M20 X 1.5 by 150mm	1
H	-	Anti-Seize Compound	1
J	FT-3091	Beam	1

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⁽¹⁾	CE Compliant
⁽²⁾	Use Tooling (F) or Tooling (F1) based on the requirement
⁽³⁾	Operating Voltage (380V-500V)
⁽⁴⁾	Operating Voltage (180V-300V)

Start By:

Remove the bucket.
Rotate the upper structure until the upper structure is at 90 degrees to the undercarriage frame.

Drain the final drives into a suitable container.
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Illustration 1 g02610897

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Illustration 2 g02610898
Remove two bolts (1) and install Tooling (A), as shown. Remove remaining bolts (1). Tighten forcing screws (3) to remove cover (2) from the final drive. Remove cover (2) while holding the ring gear against the sprocket housing.

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Without the sun gear in place, the brakes are ineffective. Personal injury or death could result. Provide other means to hold or stop the machine.

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Illustration 3 g02611717

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Illustration 4 g02610902
Place bolt (1) in the ring gear to hold in position, as shown. Remove sun gear (4).
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Illustration 5 g02610897
Apply Tooling (B) onto the cover (2). Install cover (2) and bolts (1). Refill with oil for towing. Repeat procedure for the opposite final drive.
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Illustration 6 g02609382
Position stick (6) on Tooling (C), as shown. Ensure the eye Dimension (X) of pin hole from the stick (6) is level with the bottom of the frame (5) to enable level lifting.
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Illustration 7 g02566718

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Illustration 8 g02566686
Disconnect hose assembly (9). Remove bolts (11) and plate (10). Attach a suitable lifting device to cylinder (12). The weight of boom cylinder (12) is approximately 181 kg (400 lb). Slide pin (13) toward the boom to reposition boom cylinder (12).
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Illustration 9 g02566684

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Illustration 10 g02564118
Lower boom cylinder (12) onto Tooling (D). Remove hoses (14). Attach a suitable lifting device to boom cylinder (12). The weight of boom cylinder (12) is approximately 181 kg (400 lb).
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Illustration 11 g02609038
Remove pin (15). Remove boom cylinder (12).
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Illustration 12 g02551745

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Illustration 13 g02609377
Attach a suitable lifting device to Tooling (E). The weight of Tooling (E) is approximately 95 kg (210 lb). Position Tooling (E) as shown. Install pin (13). Position pin (13) and install plate (10).
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Illustration 14 g02609379
Remove bracket (16). Remove hoses (17).
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Illustration 15 g02609380
Remove hose assemblies (19). Remove fittings (18). Remove clamp (22). Remove retainer (21). Remove boot (20).
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Illustration 16 g02611718

For Tooling (F)
Position Tooling (F) as shown. The weight of upper frame (5) is approximately 10890 kg (24000 lb).
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Illustration 17 g06414052

For Tooling (F1)
Position Tooling (F1) as shown. The weight of upper frame (5) is approximately 10890 kg (24000 lb). Refer to Tool Operating Manual, NEHS1328, "Lift Groups (Stand - 60 Ton)" for more information on Tooling (F1).
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Illustration 18 g02609381
Disconnect tube assembly (23). Remove bolts (24).
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Illustration 19 g02610878
Remove bolt (24) and insert Tooling (G). Use identification marks for the connecting procedure.
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Illustration 20 g02609382

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Illustration 21 g02781943
Raise the machine with Tooling (C). Raise the upper frame (5) in increments of 12.70 mm (0.50 inch) from the back then the front to keep the pinion gear (25) level. Raise the machine until the machine clears the tooling and the swivel gear (25).
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Illustration 22 g02611856
Use suitable towing device to pull the undercarriage away from the upper frame assembly.