Caterpillar Cat 18M3 MOTOR GRADER (Prefix E9W) Service Repair Manual Instant Download.pdf

Service Repair Manual
Models
18M3 MOTOR GRADER

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Product: MOTOR GRADER
Model: 18M3 MOTOR GRADER E9W
Configuration: 18M Series 3 Motor Grader E9W00001-UP (MACHINE) POWERED BY C13 Engine
Disassembly and Assembly
16M Series 3 and 18M Series 3 Motor Graders Machine Systems
Media Number -UENR6762-02 Publication Date -01/09/2015 Date Updated -07/08/2018
i06146136
Piston Pump (Hydraulic and Steering) - Remove and Install
SMCS - 4306-010; 5070-010
Removal Procedure
Start By:
a. Remove the rear chassis support. Refer to Disassembly and Assembly, "Rear Chassis
Support - Remove".
Personal injury can result from hydraulic oil pressure and hot oil.
Hydraulic oil pressure can remain in the hydraulic system after the
engine has been stopped. Serious injury can be caused if this pressure is
not released before any service is done on the hydraulic system.
Make sure all of the work tools have been lowered to the ground, and
the oil is cool before removing any components or lines. Remove the oil
filler cap only when the engine is stopped, and the filler cap is cool
enough to touch with your bare hand.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
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18M Series 3 Motor Grader E9W00001-UP (MACHINE) POWERED BY C13 Engine...
2020/4/23
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat®
products.
Dispose of all fluids according to local regulations and mandates.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for
installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this
helps to keep contaminants from entering the system.
Illustration 1 g01373096
1. Disconnect hose (1).
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2. Loosen clamp (2). Position tube (3) out of the way.
3. Remove clip (4). Remove tube assembly (5).
4. Remove tube assembly (6). Disconnect hose assembly (7).
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5. Attach a suitable lifting device onto piston pump (8). The weight of piston pump (8) is
approximately 73 kg (160 lb).
6. Remove bolts (9) in order to remove piston pump (8).
7. Remove O-ring seal (10).
Installation Procedure
Note: Inspect the O-ring seals. Replace the O-ring seals that are worn or damaged.
1. Install piston pump (hydraulic and steering) (8) in the reverse order of removal.
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Thu Apr 23 15:21:43 UTC+0800 2020
4/4
2020/4/23

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i06146137
Piston Pump (Hydraulic and Steering) - Disassemble
SMCS - 4306-015; 5070-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-0510 Driver Gp 1
Start By:
a. Remove the piston pump. Refer to Disassembly and Assembly, "Piston Pump (Hydraulic
and Steering) - Remove".
1. Remove bolts (1) and valve (2).
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2. Remove O-ring seals (3).
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
3. Remove plug (9), the O-ring seal, retainer (8), spring (7), retainer (6), spool (5), plug (4),
and the O-ring seal.
4. Remove plug (16), the O-ring seal, retainer (15), spring (14), rod (13), retainer (12), spool
(11), plug (10), and the O-ring seal.
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5. Remove bolts (17) and head (18).
6. Remove piston (22), piston (21), spring (24), gasket (19), port plate (20), and bearing cup
(23).
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7. Remove bearing cone (25).
8. Remove shim (26), barrel (27), and dowel (28).
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9. Use Tooling (A) and a suitable press in order to remove retaining ring (32) from barrel (27).
10. Remove washer (31), spring (30), and washer (29).
11. Remove bolts (33) and cover (34).
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12. Remove O-ring seal (35).
13. Remove plug (36).
14. Remove shaft (37), bolts (39), and plates (38).
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15. Remove plates (40), retainer (41), and pistons (42).
16. Remove swashplate (43).
17. Remove screws (45), bearings (44), bearing cone (46), and bearing cup (47).
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18. Remove lip seal (50).
19. Remove retaining ring (49).
20. Remove lip seal (48).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Thu Apr 23 15:22:38 UTC+0800 2020
8/8
2020/4/23

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i06146138
Piston Pump (Hydraulic and Steering) - Assemble
SMCS - 4306-016; 5070-016
Assembly Procedure
Table 1
Required Tools
A 1P-0510 Driver Gp 1
1. Install lip seal (48).
2. Install retaining ring (49).
3. Install lip seal (50).
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4. Install screws (45), bearings (44), bearing cone (46), and bearing cup (47).
5. Install swashplate (43).
6. Install shaft (37).
7. Install plug (36).
8. Install dowel (28).
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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.
9. Install washer (31), spring (30), and washer (29).
10. Use Tooling (A) and a suitable press in order to install retaining ring (32) onto barrel (27).
11. Install pistons (42) into retainer (41) and barrel (27).
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12. Install barrel (27).
13. Install shim (26) and bearing cone (25).
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14. Position plates (40) and plates (38).
15. Install bolts (39).
16. Install piston (22), piston (21), spring (24), gasket (19), port plate (20), and bearing cup
(23).
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injury.
17. Install bolts (17) and head (18).
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injury.
18. Install retainer (15), spring (14), rod (13), retainer (12), spool (11), plug (10), and the O-ring
seal. Install plug (16) and the O-ring seal.
19. Install retainer (8), spring (7), retainer (6), spool (5), plug (4), and the O-ring seal. Install
plug (9) and the O-ring seal.
20. Install O-ring seals (3).
21. Install bolts (1) and valve (2).
End By:
a. Install the piston pump. Refer to Disassembly and Assembly, "Piston Pump (Hydraulic and
Steering) - Install".
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i06147756
Bank Valve - Remove and Install - Front Frame
SMCS - 5051-010
Removal Procedure
Table 1
Required Tools
A 311-1362 Vacuum Cap 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat®
products.
1/5
2020/4/23

Dispose of all fluids according to local regulations and mandates.
1. Lower the blade to the ground.
2. Release the system pressure. Refer to Operation and Maintenance Manual, "System
Pressure - Release".
3. Install Tooling (A) onto the hydraulic tank. Attach an air supply hose onto Tooling (A).
Apply 138 kPa (20 psi). This procedure will pull a vacuum on the hydraulic system.
4. Loosen bolts (1). Remove bolts (2). Use two people in order to remove cover (3). The
weight of cover (3) is approximately 32 kg (70 lb).
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5. Disconnect tube assemblies (4). Disconnect tube assemblies (5).
6. Disconnect harness assemblies (7).
7. Disconnect harness assemblies (8).
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Caterpillar Cat 18M3 MOTOR GRADER (Prefix E9W) Service Repair Manual Instant Download.pdf

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Caterpillar Cat 18M3 MOTOR GRADER (Prefix E9W) Service Repair Manual Instant Download.pdf