Caterpillar Cat 345C L Mobile Hydraulic Excavator (Prefix B6N) Service Repair Manual Instant Downloa

Service Repair Manual

Models

345C L Mobile Hydraulic Excavator

345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

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Shutdown SIS Previous Screen Product: MOBILE HYD POWER UNIT Model: 345C L MOBILE HYD POWER UNIT B6N Configuration: 345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY C13 Engine

Disassembly and Assembly 345C MHPU Mobile Hydraulic Power Unit Machine Systems Media Number -KENR6438-00

Publication Date -01/03/2007

Date Updated -19/03/2007

i03874214

Piston Motor (Hydraulic Fan) - Disassemble SMCS - 1386-015-QP; 5058-015-HFN; 5058-015-FM

Disassembly Procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

1P-1861

Retaining Ring Pliers

1

B

9S-9152

Bearing Puller Gp

1

Start By: A. Remove the motor. Refer to Disassembly and Assembly, "Piston Motor (Hydraulic Fan) Remove".

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 1

g01175660

1. Remove bolts (1) and cover (2) .

Illustration 2

g01175661

2. Remove O-ring seal (3) .

Illustration 3

g01175662

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.

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

3. Remove bolts (4) and head assembly (5) .

Illustration 4

g01175663

4. Remove O-ring seal (6) and bearing cup (7) .

Illustration 5

g01175664

5. Remove port plate (8) and bearing cone (9) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 6

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g01175665

6. Remove shim (10) and rotating assembly (11) .

Illustration 7

g01175666

7. Remove shaft (12) and bearing cone (13) .

Illustration 8

g01176865

8. Use a suitable press and Tooling (B) in order to remove bearing cone (13) from shaft (12) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 9

g01175668

9. Remove swashplate (14) .

Illustration 10

g01175727

10. Remove pistons (15) and retainer (16) .

Illustration 11

g01175729

11. Remove bearing (17) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 12

g01278723

12. Remove pins (18) .

Illustration 13

g01278726

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.

13. Use Tooling (A) and a suitable press in order to remove retaining ring (19) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 14

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g01278729

14. Remove washers (20) and spring (21) .

Illustration 15

g02117134

15. Use Tooling (A) in order to remove retaining ring (22) . Remove lip seal (23) .

Copyright 1993 - 2020 Caterpillar Inc.

Tue Aug 11 19:34:47 UTC+0800 2020

All Rights Reserved.

Private Network For SIS Licensees.

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2020/8/11

345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

1/7

Shutdown SIS Previous Screen Product: MOBILE HYD POWER UNIT Model: 345C L MOBILE HYD POWER UNIT B6N Configuration: 345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY C13 Engine

Disassembly and Assembly 345C MHPU Mobile Hydraulic Power Unit Machine Systems Media Number -KENR6438-00

Publication Date -01/03/2007

Date Updated -19/03/2007

i03874213

Piston Motor (Hydraulic Fan) - Assemble SMCS - 1386-016-QP; 5058-016-HFN; 5058-016-FM

Assembly Procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

1P-1861

Retaining Ring Pliers

1

Illustration 1

g02117134

1. Install lip seal (23) . Use Tooling (A) in order to install retaining ring (22) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 2

g01278760

2. Install washers (20) and spring (21) .

Illustration 3

g01278756

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. Use Tooling (A) and a suitable press in order to install retaining ring (19) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 4

g01278757

4. Install pins (18) .

Illustration 5

g01175729

5. Install bearing (17) .

Illustration 6

g01175727

6. Install pistons (15) and retainer (16) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 7

g01175668

7. Install swashplate (14) .

Illustration 8

g01175783

8. Raise the temperature of bearing cone (13) .

9. Install bearing cone (13) onto shaft (12) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 9

g01175666

10. Install shaft (12) and bearing cone (13) .

Illustration 10

g01175665

11. Install rotating assembly (11) and shim (10) .

Illustration 11

g01175664

12. Install port plate (8) and bearing cone (9) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 12

g01175663

13. Install O-ring seal (6) and bearing cup (7) .

Illustration 13

g01175662

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.

14. Install head assembly (5) and bolts (4) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 14

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g01175661

15. Install O-ring seal (3) .

Illustration 15

g01175660

16. Install cover (2) and bolts (1) .

End By: Install the motor. Refer to Disassembly and Assembly, "Piston Motor (Hydraulic Fan) Install".

Copyright 1993 - 2020 Caterpillar Inc.

Tue Aug 11 19:35:44 UTC+0800 2020

All Rights Reserved.

Private Network For SIS Licensees.

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2020/8/11

345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

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Shutdown SIS Previous Screen Product: MOBILE HYD POWER UNIT Model: 345C L MOBILE HYD POWER UNIT B6N Configuration: 345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY C13 Engine

Disassembly and Assembly 345C MHPU Mobile Hydraulic Power Unit Machine Systems Media Number -KENR6438-00

Publication Date -01/03/2007

Date Updated -19/03/2007

i02427710

Piston Motor (Hydraulic Fan) - Install SMCS - 1386-012-QP; 5058-012-FM

Installation Procedure Table 1 Required Tools Tool

Part Number

A

FT-2674

Part Description

Qty

Vacuum Cap

1

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used 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.

Illustration 1

g01213351

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

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1. Use a suitable lifting device in order to position fan motor (9). The weight of fan motor (9) is approximately 25 kg (55 lb). Install bolts (11). Install fittings (10) .

Illustration 2

g01213350

2. Connect hose assemblies (8). Install cover (7) .

Illustration 3

g01213348

3. Install tubes (6). Install support (5) .

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 4

g01213346

4. Use a suitable lifting device in order to install hood (3). The weight of hood (3) is approximately 68 kg (150 lb). Install bolts (4) .

Illustration 5

g01213345

5. Close access panel (2) and install bolts (1) .

6. Close the front left access door.

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 6

4/4

g01213343

7. Remove Tooling (A) .

Copyright 1993 - 2020 Caterpillar Inc.

Tue Aug 11 19:36:41 UTC+0800 2020

All Rights Reserved.

Private Network For SIS Licensees.

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2020/8/11

345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

1/2

Shutdown SIS Previous Screen Product: MOBILE HYD POWER UNIT Model: 345C L MOBILE HYD POWER UNIT B6N Configuration: 345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY C13 Engine

Disassembly and Assembly 345C MHPU Mobile Hydraulic Power Unit Machine Systems Media Number -KENR6438-00

Publication Date -01/03/2007

Date Updated -19/03/2007

i02554917

Hydraulic Lockout Control - Remove SMCS - 5001-011-LK

Removal Procedure

Illustration 1

g01187398

1. Remove screws (2) and panel (1).

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Illustration 2

2/2

g01278781

2. Remove screws (6). Cut cable strap (8) and place switch (7) aside.

3. Remove bolt (4), bolt (5), and hydraulic lockout control (3).

Copyright 1993 - 2020 Caterpillar Inc.

Tue Aug 11 19:37:37 UTC+0800 2020

All Rights Reserved.

Private Network For SIS Licensees.

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

2020/8/11

345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

1/3

Shutdown SIS Previous Screen Product: MOBILE HYD POWER UNIT Model: 345C L MOBILE HYD POWER UNIT B6N Configuration: 345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY C13 Engine

Disassembly and Assembly 345C MHPU Mobile Hydraulic Power Unit Machine Systems Media Number -KENR6438-00

Publication Date -01/03/2007

Date Updated -19/03/2007

i02378526

Hydraulic Lockout Control - Disassemble SMCS - 5001-015-LK

Disassembly Procedure Start By: a. Remove the hydraulic lockout control. Refer to Disassembly and Assembly, "Hydraulic Lockout Control - Remove".

Illustration 1

g01187382

Personal injury can result from being struck by parts propelled by a released spring force.

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2020/8/11

345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

Make sure to wear all necessary protective equipment.

Follow the recommended procedure and use all recommended tooling to release the spring force.

1. Remove retaining rings (1) and lever assembly (2).

2. Remove retaining ring (4), lever assembly (5), and spring (3).

Illustration 2

g01187383

3. Pull back cover (8) in order to remove pin (7) from pipe assembly (6).

Illustration 3

g01187385

Personal injury can result from being struck by parts propelled by a released spring force.

Make sure to wear all necessary protective equipment.

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345C L Mobile Hydraulic Power Units B6N00001-UP (MACHINE) POWERED BY ...

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Follow the recommended procedure and use all recommended tooling to release the spring force.

4. Remove pin (10) from pin (9).

5. Remove spring (11) from cover (12).

Copyright 1993 - 2020 Caterpillar Inc.

Tue Aug 11 19:38:34 UTC+0800 2020

All Rights Reserved.

Private Network For SIS Licensees.

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2020/8/11