Caterpillar Cat 345C L Mobile Hydraulic Excavator (Prefix B6N) Service Repair Manual (B6N00001 and up).pdf

Service Repair Manual
Models
345C L Mobile Hydraulic
Excavator

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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 ...
2020/8/11
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

Illustration 1 g01175660
1. Remove bolts (1) and cover (2) .
2. Remove O-ring seal (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.
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3. Remove bolts (4) and head assembly (5) .
4. Remove O-ring seal (6) and bearing cup (7) .
5. Remove port plate (8) and bearing cone (9) .
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6. Remove shim (10) and rotating assembly (11) .
7. Remove shaft (12) and bearing cone (13) .
8. Use a suitable press and Tooling (B) in order to remove bearing cone (13) from shaft (12) .
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9. Remove swashplate (14) .
10. Remove pistons (15) and retainer (16) .
11. Remove bearing (17) .
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12. Remove pins (18) .
13. Use Tooling (A) and a suitable press in order to remove retaining ring (19) .
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14. Remove washers (20) and spring (21) .
15. Use Tooling (A) in order to remove retaining ring (22) . Remove lip seal (23) .
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Tue Aug 11 19:34:47 UTC+0800 2020
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345C MHPU
Machine Systems
i03874213
Piston Motor (Hydraulic Fan) - Assemble
SMCS - 1386-016-QP; 5058-016-HFN; 5058-016-FM
Assembly Procedure
Table 1
Required Tools
A 1P-1861 Retaining Ring Pliers 1
1. Install lip seal (23) . Use Tooling (A) in order to install retaining ring (22) .
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2. Install washers (20) and spring (21) .
3. Use Tooling (A) and a suitable press in order to install retaining ring (19) .
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4. Install pins (18) .
5. Install bearing (17) .
6. Install pistons (15) and retainer (16) .
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7. Install swashplate (14) .
8. Raise the temperature of bearing cone (13) .
9. Install bearing cone (13) onto shaft (12) .
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10. Install shaft (12) and bearing cone (13) .
11. Install rotating assembly (11) and shim (10) .
12. Install port plate (8) and bearing cone (9) .
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13. Install O-ring seal (6) and bearing cup (7) .
14. Install head assembly (5) and bolts (4) .
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15. Install O-ring seal (3) .
16. Install cover (2) and bolts (1) .
End By: Install the motor. Refer to Disassembly and Assembly, "Piston Motor (Hydraulic Fan) -
Install".
Tue Aug 11 19:35:44 UTC+0800 2020
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345C MHPU
Machine Systems
i02427710
Piston Motor (Hydraulic Fan) - Install
SMCS - 1386-012-QP; 5058-012-FM
Installation Procedure
Table 1
Required Tools
A FT-2674 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.
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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) .
2. Connect hose assemblies (8). Install cover (7) .
3. Install tubes (6). Install support (5) .
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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) .
5. Close access panel (2) and install bolts (1) .
6. Close the front left access door.
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7. Remove Tooling (A) .
Tue Aug 11 19:36:41 UTC+0800 2020
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345C MHPU
Machine Systems
i02554917
Hydraulic Lockout Control - Remove
SMCS - 5001-011-LK
Removal Procedure
1. Remove screws (2) and panel (1).
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2. Remove screws (6). Cut cable strap (8) and place switch (7) aside.
3. Remove bolt (4), bolt (5), and hydraulic lockout control (3).
Tue Aug 11 19:37:37 UTC+0800 2020
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345C MHPU
Machine Systems
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".
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1. Remove retaining rings (1) and lever assembly (2).
2. Remove retaining ring (4), lever assembly (5), and spring (3).
3. Pull back cover (8) in order to remove pin (7) from pipe assembly (6).
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4. Remove pin (10) from pin (9).
5. Remove spring (11) from cover (12).
Tue Aug 11 19:38:34 UTC+0800 2020
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Caterpillar Cat 345C L Mobile Hydraulic Excavator (Prefix B6N) Service Repair Manual (B6N00001 and up).pdf

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Caterpillar Cat 345C L Mobile Hydraulic Excavator (Prefix B6N) Service Repair Manual (B6N00001 and up).pdf