349F and 352F Excavators Machine Systems Pilot Valve (Joystick)

Table 1
Specification for 297-0529 Pilot Valve Gp, and 310-0382 Pilot Valve Gp
Item	Qty	Part	Specification Description
1	1	131-5915 Special Nut	Before assembly, apply red Loctite 271 between the threads part of the joint and the special nut. Torque to 68.6 ± 4.9 N·m (50.6 ± 3.6 lb ft).
2	1	165-9431 Plate	Before assembly, apply red Loctite 271 between the threads part of the joint and the plate. Torque to 68.6 ± 4.9 N·m (50.6 ± 3.6 lb ft).
3	1	4I-6365 Joint	Torque to 47.1 ± 2.9 N·m (34.7 ± 2.1 lb ft).
4	4	118-4087 Spring	Free length is 10.6 mm (0.42 inch).
5	2	165-9442 Spring	Free length is 29.7 mm (1.17 inch).
6	2	165-9460 Spring	Free length is 31.1 mm (1.22 inch).
7	4	099-6137 Washer	As required, use the following washers: Thickness of one, number 1 washer is 0.2 mm (0.01 inch). Thickness of one, number 2 washer is 0.4 mm (0.02 inch).
8	4	270-5953 Spring	Free length is 41.9 mm (1.65 inch).

Assembly Procedure

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Table 2
Required Tools
Tool	Part Number	Part Description	Qty
A	-	Loctite 271	-

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Illustration 2	g02154700

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Illustration 3	g02154699

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Improper assembly of parts that are spring loaded can cause bodily injury.

To prevent possible injury, follow the established assembly procedure and wear protective equipment.

Use the following procedure to assemble spool assembly (13).
Note: Spool (13) is assembled in Port (1) and Port (3) in the pilot valve.
1. Install washer (21), spring (19), and seat (17) on spool (23). Put the end of the spool in the slotted opening of seat (17).
Use the following procedure to disassemble spool assembly (12).
Note: Spool (12) is assembled in Port (2) and Port (4) in the pilot valve.
1. Install washer (20), spring (18), and seat (16) on spool (22). Put the end of the spool in the slotted opening of seat (16).
Note: Spool assembly (13) is installed in Port (1) and Port (3) in the pilot valve. Spool assembly (12) is installed in Port (2) and Port (4) in the pilot valve.
Install springs (14) and (15). Install spool assemblies (12) and (13).
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Illustration 4 g02154698
Install new seal (6) in plug (7).
Install new O-ring seal (8) on plug (7).
Install rod (9) in plug (7).
Note: Make sure that spring seats (11) are assembled in the correct port location.
Install spring (10) and the correct spring seat (11) in rod (9).
Note: Make sure that spring seat (11) and the spring do not fall out of the rod while you install the plug.
Install plug (7).
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Illustration 5 g02154696

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Illustration 6 g02154697

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Improper assembly of parts that are spring loaded can cause bodily injury.
To prevent possible injury, follow the established assembly procedure and wear protective equipment.
Install plate (5).
Apply Tooling (A) on the threads on the upper half of U-joint (4).
Install plate (3) on U-joint (4).
Install nut (2) on U-joint (4).
Tighten nut (2) against plate (3).
Install plate (3), nut (2), and U-joint (4). Tighten U-joint (4) to a torque of 47.1 ± 2.9 N·m (34.7 ± 2.1 lb ft).
Adjust plate (2) to Dimension (X) that was recorded in the disassembly procedure.
Tighten nut (2) against plate (3). Tighten nut (2) to a torque of 68.6 ± 4.9 N·m (50.6 ± 3.6 lb ft).
Install rubber boot (1).