303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems Support (Swing Boom)

Support (Swing Boom) - Install

303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems [UENR0102]

303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems Support (Swing Boom) - Remove

303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems Heating and Air Conditioning Unit - Remove

FRAME AND BODY

FRAME GP

303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems Upper Frame and Undercarriage Frame - Separate

303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems Upper Frame and Undercarriage Frame - Connect

303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems Support (Swing Boom) - Remove

303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems Support (Swing Boom) - Install

Installation Procedure

Show/hide table

Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	1P-1862	Retaining Ring Pliers	1
B	140-7742	Sleeve	2
D	1P-1832	Adapter	1
	4C-9633	Puller Stud	1
	6V-3160	Double Acting Cylinder	1
	9U-6833	Nut	1
	3S-6224	Electric Hydraulic Pump Gp	1

Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts in cleaning fluid. Allow the parts to air dry. Do not use wiping cloths or rags to dry parts. Lint may be deposited on the parts which may cause trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. Dirt and other contaminants can damage the precision component. Perform assembly procedures on a clean work surface. Keep components covered and protected always.

Show/hide table




Illustration 1	g01234282

Lower the temperature of bearings (22) and (23). Use Tooling (D) to install bearings (22) and (23).
Show/hide table

Illustration 2 g01234297

Show/hide table

NOTICE

Typical Example.
Install pin assembly (4) and bolt (5) that held the head end of the stick cylinder. Pin assembly (4) is used for the installation of support (11). Attach a suitable lifting device to pin assembly (4) and support (5). The weight of support (11) is approximately 160 kg (350 lb).
Install support (11) onto the machine. Note the location of any shims (21) that may be present.
Show/hide table

Illustration 3 g06087455

Show/hide table

Illustration 4 g06087459

Show/hide table

Illustration 5 g01233709
Install upper hitch pin (20) from the top of the hitch. Install bolts (19).
Install lower hitch pin (17) from the bottom of the hitch. Install pin (18) and the bolt.
Show/hide table

Illustration 6 g01233790

Show/hide table

Illustration 7 g01234330
Pull hose assemblies (16) and (17) into support (11).
Show/hide table

Illustration 8 g01233708
Remove the suitable lifting device. Remove bolt (5) and pin assembly (4) from support (11).
Show/hide table

Illustration 9 g01233696
Install guard (10) and bolts (9).
Show/hide table

Illustration 10 g01233694
Move swing boom cylinder (6) into position. Install pin assembly (7) and bolt (8).
Show/hide table

Illustration 11 g01233691

Show/hide table

Illustration 12 g01233692
Attach Tooling (B) and a suitable lifting device to boom assembly (3). The weight of boom assembly (3) is approximately 522 kg (1150 lb).
Install boom assembly (3). Install pin assembly (4) and bolt (5).
Show/hide table

Illustration 13 g01233687
Connect hose assemblies (2) to tube assemblies (1) that are located on the rear of the boom.