Caterpillar cat 320 d3 excavator (prefix esx) service repair manual (esx00001 and up)

Service Repair Manual
Models
320D3 Excavator

Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 320D3 EXCAVATOR ESX
Configuration: 320D3 Excavator ESX00001-UP (MACHINE) POWERED BY ALUW06DTI Engine
Disassembly and Assembly
320D3 Hydraulic Excavator Machine Systems
Media Number -M0092841-00 Publication Date -01/06/2018 Date Updated -27/06/2018
i07398906
Load Control Valve (Stick Cylinder) - Disassemble
SMCS - 5811-015-JJ
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 6V-7981 Bolt (M10×1.5×70mm) 2
Start By:
a. Remove the load control valve (stick cylinder).
Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the
component should be thoroughly cleaned. This will prevent dirt from entering the internal
mechanism.
NOTICE
Keep all parts clean from contaminants.
Contamination of the hydraulic system with foreign material will
reduce the service life of the hydraulic system components.
To prevent contaminants from entering the hydraulic system, always
plug or cap the lines, fittings, or hoses as they are disconnected. Cover
any disassembled components and clean them properly before
assembly.
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2020/1/4https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...

Clean the hydraulic system properly after any major component
exchange or especially after a component failure, to remove any
contamination.
Illustration 1 g06310217
1. Remove fittings (1).
2. Remove O-ring seals (2) and (3) from both the fittings.
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Personal injury can result from parts and/or covers under spring
pressure.
Spring force will be released when covers are removed.
Be prepared to hold spring loaded covers as the bolts are loosened.
3. Remove two bolts (4), as shown in Illustration 3.
4. Install Tooling (A) and remove remaining two bolts (4).
5. Remove Tooling (A) and cover (5) from the valve body.
6. Remove O-ring seal (6) and backup ring (7) from cover (5).
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7. Remove spring (9) and spool valve (8) from the valve body.
8. Remove plug (10) and O-ring seal (11) .
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pressure.
9. Remove plug (12) and O-ring seal (13).
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10. Remove spring (16), guide (15), and spool (14) from the valve body.
11. Remove plug (17) and O-ring seal (18).
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12. Remove relief valve (19).
pressure.
13. Remove nut (20), screw (21), spring (23), plunger (24), body (25), spring (29), spring (30),
plunger (31), valve (32), and valve (35) from body (36).
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14. Remove O-ring seal (22) from screw (21).
15. Remove O-ring seal (28), backup rings (27), and O-ring seal (26) from body (25).
16. Remove backup rings (34) and O-ring seal (33) from valve (32).
17. Remove O-ring seal (37) from body (36).
18. Remove pipe plug (38) from the valve body.
19. Remove O-ring seals (39) and (41) from the valve body. Remove plug (40).
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20. Remove O-ring seal (42) from plug (40).
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All Rights Reserved.
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 320D3 EXCAVATOR ESX
Configuration: 320D3 Excavator ESX00001-UP (MACHINE) POWERED BY ALUW06DTI Engine
Disassembly and Assembly
320D3 Hydraulic Excavator Machine Systems
Media Number -M0092841-00 Publication Date -01/06/2018 Date Updated -27/06/2018
i07399913
Load Control Valve (Stick Cylinder) - Assemble
SMCS - 5811-016-JJ
Table 1
Required Tools
Tool Part Number Part Description Qty
A 6V-7981 Bolt (M10×1.5×70mm) 2
Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned
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 later trouble. Inspect all parts. If any parts are
worn or damaged, use new parts for replacement. All disassembly and all assembly procedures
must be performed on a clean work surface and in a clean hydraulic area. Keep cleaned parts
covered and protected.
Note: Check O-ring seals, gaskets, and seals for wear or for damage. Replace O-ring seals,
gaskets, and seals, if necessary.
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1. Install O-ring seal (42) onto plug (40).
2. Install plug (40). Tighten plug (40) to a torque of 10 ± 1 N.m (89 ± 9 lb in).
3. Install O-ring seals (39) and (41) onto the valve body.
4. Install plug (38). Tighten plug (38) to a torque of 35 ± 4 N·m (26 ± 3 lb ft).
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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.
5. Install O-ring seal (37) onto body (36).
6. Install O-ring seal (33) and backup rings (34) onto valve (32).
7. Install O-ring seal (26), backup rings (27), and O-ring seal (28) onto body (25).
8. Install O-ring seal (22) onto screw (21).
9. Install valve (35), valve (32), plunger (31), spring (30), spring (29), body (25), plunger (24),
spring (23), screw (21), and nut (20) into body (36). Tighten body (25) to a torque of
101 ± 10 N.m (74 ± 7 lb ft). Tighten nut (20) to a torque of 19.6 ± 2.0 N.m
(173.5 ± 17.7 lb in).
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10. Install relief valve (19) into the valve body. Tighten relief valve (19) to a torque of
95 ± 14 N·m (70 ± 10 lb ft).
12. Install plug (17). Tighten plug (17) to a torque of 40 ± 7 N.m (30 ± 5 lb ft).
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13. Install spool (14), guide (15), and spring (16) into the valve body.
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injury.
15. Install plug (12). Tighten plug (12) to a torque of 50 ± 7 N·m (37 ± 5 lb ft).
17. Install plug (10). Tighten plug (10) to a torque of 10 ± 1 N.m (89 ± 9 lb in).
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18. Install spool valve (8) and spring (9) into the valve body.
19. Lubricate backup ring (7) and O-ring seal (6) lightly with the lubricant that is being sealed.
Install backup ring (7) and O-ring seal (6) onto cover (5).
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injury.
20. Use Tooling (A) to install cover (5). Install two bolts (4) and remove Tooling (A). Install
remaining two bolts (4). Tighten bolts (4) to a torque of 55 ± 10 N.m (41 ± 7 lb ft).
21. Install O-ring seals (3) and (2) onto the fittings.
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Caterpillar cat 320 d3 excavator (prefix esx) service repair manual (esx00001 and up)

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