Caterpillar Cat 140M 3 AWD MOTOR GRADER (Prefix N9G) Service Repair Manual Instant Download

Service Repair Manual

Models

140M 3 AWD MOTOR GRADER

140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

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Shutdown SIS Previous Screen Product: MOTOR GRADER Model: 140M 3 AWD MOTOR GRADER N9G Configuration: 140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERED BY C9.3 Engine

Disassembly and Assembly 12M Series 3, 140M Series 3 and 160M Series 3 Motor Graders Machine Systems Media Number -UENR3488-02

Publication Date -01/09/2018

Date Updated -24/09/2018

i07512054

Gerotor Motor (Circle Drive) - Assemble SMCS - 5082-016; 5206-016

Assembly Procedure Table 1 Required Tools Tool

Part Number

A

1P-0510

Part Description Driver Gp

Qty 1

1. Make sure that all the components of the gerotor motor are clean prior to assembly. During the assembly, check the condition of all the O-ring seals that are used in the motor. If any of the seals are damaged, use new parts for replacement.

Illustration 1

g00926979

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 2

g00926505

2. Install bearing (18). Use a suitable press to press bearing (18) to a depth of 7.62 mm (0.300 inch) below Surface (X).

3. Install lip seal (17). Press lip seal (17) in flush to 0.51 mm (0.020 inch) below face.

Illustration 3

g00926506

4. Install backup ring (19) and the shim to the motor assembly.

5. Install lip seal (20) to the motor assembly.

6. If equipped, install the needle bearing (13). Press the needle bearing to a depth of 2.92 mm (0.115 inch) below Surface (Z). Install O-ring seal (21) to the motor assembly.

Illustration 4

g00926242

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

7. Position the motor assembly so that Face (Y) is facing upward. Install two races (15) and bearing (14) to shaft (16), as shown.

8. Install shaft (16) to the motor assembly.

Illustration 5

g00635545

9. Install link (11) and bearing (12) to the motor assembly.

Illustration 6

g00992953

10. Install spacer (10) and inner rotor (9) to the motor assembly.

11. Install the O-ring seal in outer rotor (7). Install pins (8) and outer rotor (7) to the motor assembly.

Illustration 7

g00635552

12. Install the O-ring seals on both sides of manifold (6). Install manifold (6) to the motor assembly.

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 8

g00635553

13. Install a new ring (5) to inner plate (4).

Note: Ring (5) is cone-shaped. The cone fits into the groove of inner plate (4).

Illustration 9

g00635555

14. Install inner plate (4). The seal ring should face the outer cap. Install outer plate (3) to the motor assembly.

Illustration 10

g00635556

15. Install cap (2) and bolts (1) on to the motor assembly.

16. Tighten bolts (1) to a torque of 68 ± 7 N·m (50 ± 5 lb ft).

End By:

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Shutdown SIS Previous Screen Product: MOTOR GRADER Model: 140M 3 AWD MOTOR GRADER N9G Configuration: 140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERED BY C9.3 Engine

Disassembly and Assembly 12M Series 3, 140M Series 3 and 160M Series 3 Motor Graders Machine Systems Media Number -UENR3488-02

Publication Date -01/09/2018

Date Updated -24/09/2018

i02798560

Gerotor Motor (Circle Drive) - Install SMCS - 5082-012; 5206-012

Installation Procedure Table 1 Required Tools Tool

Part Number

A

311-1362

Part Description Vacuum Cap

Qty 1

NOTICE Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

Note: Check the O-ring seals for wear or for damage. Replace the components, if necessary.

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 1

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g01398364

1. Position the O-ring seal and gerotor motor (4). Install bolts (1).

2. Connect hose assemblies (3) and (2).

Illustration 2

g01397769

3. Remove Tooling (A).

4. Check the level of the hydraulic system. Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check" for the correct procedure.

End By: a. Separate the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".

Copyright 1993 - 2019 Caterpillar Inc.

Tue Dec 31 10:24:30 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

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Shutdown SIS Previous Screen Product: MOTOR GRADER Model: 140M 3 AWD MOTOR GRADER N9G Configuration: 140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERED BY C9.3 Engine

Disassembly and Assembly 12M Series 3, 140M Series 3 and 160M Series 3 Motor Graders Machine Systems Media Number -UENR3488-02

Publication Date -01/09/2018

Date Updated -24/09/2018

i05508935

Circle Drive - Remove SMCS - 5207-011

Removal Procedure Table 1 Required Tools Tool

Part Number

A

138-7575

Part Description Link Bracket

Qty 3

Start By: a. Remove the gerotor motor.

Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 1

g00929322

1. Bend lock (1) from nut (2). Remove nut (2), lock (1), and washer (3).

2. Remove O-ring seal (4). Remove nuts (5).

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 2

g00929323

3. Remove bolts (6).

4. Remove bolts (7).

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 3

g00929325

5. Attach Tooling (A) to circle drive (8). Attach a suitable lifting device to Tooling (A). The weight of circle drive (8) is approximately 127 kg (280 lb).

6. Raise circle drive (8) and remove gear (9) and thrust washer (10).

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 4

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g00929328

7. Remove Duo-Cone seal (11) from circle drive (8). Remove circle drive (8).

Illustration 5

g00929332

8. Remove Duo-Cone seal (12) from gear (9).

Copyright 1993 - 2019 Caterpillar Inc.

Tue Dec 31 10:25:26 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2019/12/31

140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

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Shutdown SIS Previous Screen Product: MOTOR GRADER Model: 140M 3 AWD MOTOR GRADER N9G Configuration: 140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERED BY C9.3 Engine

Disassembly and Assembly 12M Series 3, 140M Series 3 and 160M Series 3 Motor Graders Machine Systems Media Number -UENR3488-02

Publication Date -01/09/2018

Date Updated -24/09/2018

i05508896

Circle Drive - Disassemble SMCS - 5207-015

Disassembly Procedure Table 1 Required Tools Tool

Part Number

A

Part Description

Qty

Forcing Bolt 3/8-16 by 4 inch

2

B

138-7575

Link Bracket

1

C

8H-0663

Bearing Puller Gp

1

8B-7554

Bearing Cup Puller Gp

1

8B-7548

Push-Puller Tool Gp

1

D

Start By: a. Remove the circle drive. Refer to Disassembly and Assembly, "Circle Drive - Remove".

Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly procedures on a clean work surface. Keep components covered and protected at all times.

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 1

g00937730

1. Remove coupling (1) from housing (3). Remove pin (2) from coupling (1).

Illustration 2

g00937733

2. Remove nuts (4). Remove bracket (5).

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

3. Remove O-ring seal (7) and shims (8).

4. Remove bearing cup (6) from bracket (5).

Illustration 3

g00937735

5. Remove bolts (9) and cover (10).

6. Remove bolts (11).

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 4

g00937707

7. Install Tooling (A) and remove cover (12).

Illustration 5

g00937728

8. Remove plug (13) and O-ring seal (14) from cover (12).

9. Remove bearing (15) from cover (12).

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 6

g00937708

10. Install Tooling (B) on shaft assembly (16). Attach a suitable lifting device to Tooling (B).

The weight of shaft assembly (16) is approximately 32 kg (70 lb).

11. Remove shaft assembly (16). Remove Tooling (B).

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 7

g00937732

12. Remove remaining bolts (17) and retainer (18). Remove spacer (19) and shims (20).

13. Remove spring (21) and spacer (22).

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 8

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g00937709

14. Remove gear (23) from shaft assembly (16). Remove friction discs (24) and discs (25) from gear (23). Remove spacer (26).

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140M Series 3 Motor Grader-All Wheel Drive N9G00001-UP (MACHINE) POWERE...

Illustration 9

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g00937727

15. Remove thrust washer (27) and remove bearing (28).

16. Remove worm assembly (29) from housing (3).

Illustration 10

g00937739

17. Use Tooling (C) and a suitable press in order to remove bearings (31) from worm assembly (29).

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