1 / 31

Caterpillar Cat 345C L Mobile Hydraulic Excavator (Prefix M3F) Service Repair Manual (M3F00001 and up)

To get the complete manual, please open the home page website.<br><br>https://www.aservicemanualpdf.com/

yhuhnkm8u6km
Download Presentation

Caterpillar Cat 345C L Mobile Hydraulic Excavator (Prefix M3F) Service Repair Manual (M3F00001 and up)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Service Repair Manual Models 345C and345C L M obile Hydraulic Excavator

  2. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 1/13 Shutdown SIS Previous Screen Product: MOBILE HYD POWER UNIT Model: 345C MOBILE HYD POWER UNIT M3F Configuration: 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWERED BY C13 Engine Disassembly and Assembly 345C Excavator and 345C MHPU Mobile Hydraulic Power Unit Machine Systems Media Number -RENR8612-06 Publication Date -01/02/2013 Date Updated -21/02/2013 i03778971 Travel Motor - Assemble SMCS - 4351-016 Assembly Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 3E-3879 Eyebolt 1 D 4C-8359 Eyebolt 1 F 1P-1862 Pliers 1 G 1P-0510 Driver Group 1 J 4C-4030 Thread Lock Compound 1 K 180-6533 Seal Driver 1 L 6V-7030 Micrometer Depth Gauge 1 M 8T-0447 Calipers 1 N 1U-6396 O-Ring Assembly Compound 1 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. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  3. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 2/13 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. Clean the hydraulic system properly after any major component exchange or especially after a component failure, to remove any contamination. Note: If a failure occurs, an accurate diagnosis of the cause can prevent a recurrence. Information is available to analyze failures for piston pumps and motors. Refer to Special Publication, SEBD0641, "Analyzing Axial Piston Pump and Motor Failures". Note: Inspect all parts. If any parts are worn or damaged use new parts for replacement. The installation of used parts during reconditioning is acceptable. Reuse and salvage information is available on piston pumps. Refer to Guideline For Reusable Parts and Salvage Operations, SEBF8032, "Piston Pumps and Motors". During reconditioning, correct any conditions that might have caused the original failure. Note: O-ring seals , gaskets, and seals should always be replaced. A used O-ring seal may not have the same sealing properties as a new O-ring seal. Use Tooling (H) during the assembly procedure. Note: Apply a light film of "10W" oil to all components before assembly. Illustration 1 g01204890 1. Install O-ring seal (34) on plug (33). 2. Install piston (32) and the plug in the travel motor body. Tighten the plug to a torque of 430 ± 40 N·m (317 ± 30 lb ft). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  4. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 3/13 Illustration 2 g01204916 Illustration 3 g01204919 3. Apply a thin coat of Tooling (J) on the outer surfaces of lip seal (31). 4. Use Tooling (K) and a suitable hammer to drive the lip seal into the travel motor body. Drive the seal downward until Tooling (K) makes contact with the travel motor housing. 5. Use Tooling (F) to install retaining ring (30) to the shaft end of the travel motor body. Illustration 4 g01204923 6. Install keys (29) inside the travel motor body. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  5. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 4/13 Illustration 5 g01204924 7. Assemble washers (25), inner spacer (28) and outer spacer (27) in the proper orientation, as shown. Illustration 6 g01204931 8. Use Tooling (L) to measure the distance from the outer spacer to the surface of the table. The distance should be 22.1 ± 0.6 mm (0.87 ± 0.02 inch). If this measurement is off, check orientation of the washers. If orientation is correct, replace washers and spacers with new parts. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  6. https://www.aservicemanualpdf.com/ My Dear Friend! Thank you very much for visiting. Full manual if required, please enter the following URL into your browser. https://www.aservicemanualpdf.com/

  7. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 5/13 Illustration 7 g00625917 9. Install inner spacer (28), washers (25), and outer spacer (27) to barrel (24). 10. Install guide (26) to the barrel. Illustration 8 g00625911 11. Install piston assemblies (23) with retainer (22) in the piston assembly's original bore in barrel (24). Illustration 9 g00625908 12. Install cam plate (21) on the rotating group. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  8. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 6/13 Illustration 10 g00666621 Illustration 11 g00628062 13. Use a suitable press to install bearing (19) onto shaft assembly (18). Illustration 12 g00668076 14. Use a suitable press in order to install inner race (20) onto shaft assembly (18). Note: Place the two support plates under the lip of shaft assembly (18). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  9. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 7/13 Illustration 13 g00626633 15. Insert shaft assembly (18) in the rotating group. Illustration 14 g00625891 Illustration 15 g00666743 16. Alternate disks (17) and separator plates (16) into the travel motor housing. Start with a separator plate and end with a separator plate. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  10. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 8/13 Illustration 16 g00626837 17. Attach Tooling (D) to the shaft. Use a suitable lifting device in order to place barrel assembly into the travel motor body. Note: Align the notches of the cam plate with the keys in the travel motor body before you lower the barrel assembly into the travel motor body. Illustration 17 g01204938 18. Use Tooling (M) to measure the depth from the top surface of the travel motor body to the bronze face of the barrel assembly. The distance should be 32.2 ± 2 mm (1.27 ± 0.08 inch). If this measurement is off, check orientation of the barrel assembly. Also check if the cam plate is properly seated on the keys. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  11. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 9/13 Illustration 18 g00625888 Illustration 19 g00667938 (15) O-Ring seals 19. Install O-ring seals (15) and the backup rings on the brake piston. Note: Make sure that you install the backup ring and the O-ring seal in the original position. Refer to Illustration 19. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  12. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POW... 10/13 Illustration 20 g00629015 20. Install brake piston (14) in the body of the travel motor by hand. It may be necessary to use a soft faced hammer to seat the brake piston correctly. Illustration 21 g01204953 21. Use Tooling (M) to measure the distance from the top of the brake piston (14) to the top surface of the travel motor body. The distance should be 20.8 ± 1.0 mm (0.82 ± 0.04 inch). If this measurement is off, drive the brake piston further into the travel motor body. Illustration 22 g00627391 22. Install springs (12) and plate (11). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  13. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POW... 11/13 23. Install O-ring seals (13). Illustration 23 g01204965 24. Use Tooling (G) to drive the bearing into the head. Illustration 24 g00627405 25. Install O-ring seal (9) onto the head. 26. Install port plate (8) on the head. It may be necessary to apply a small amount of grease to the port plate in order to hold the port plate in place during the installation of the head. Illustration 25 g01205007 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  14. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POW... 12/13 27. Turn over head (6). Install Tooling (A) onto the head. Use a suitable lifting device to install the head onto the travel motor. Illustration 26 g00631594 28. Install Pins (7) into the head. Illustration 27 g00628657 29. Install an O-ring on each plug (5). 30. Install bolts (4) which hold the head in place. Tighten the six bolts to a torque of 530 ± 70 N·m (391 ± 52 lb ft). 31. Install plugs (5) that hold the pins in the head. Tighten the plugs to a torque of 75 ± 7 N·m (55 ± 5 lb ft). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  15. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POW... 13/13 Illustration 28 g00624938 32. Install O-ring seals (2) and rings (3) on the displacement change valve. Illustration 29 g00627438 33. Install displacement change valve (1) onto the head of the travel motor. Tighten the displacement change valve to a torque of 50 ± 3 N·m (37 ± 2 lb ft). 34. To prevent possible damage to the travel motor, the unit should be filled with oil at least up to the fill port prior to operation. Refer to Operation and Maintenance Manual for the correct oil specification. End By: a. Install the travel motor. Refer to Disassembly and Assembly, "Travel Motor - Install". Copyright 1993 - 2020 Caterpillar Inc. Sat Aug 1 10:52:02 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  16. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 1/2 Shutdown SIS Previous Screen Product: MOBILE HYD POWER UNIT Model: 345C MOBILE HYD POWER UNIT M3F Configuration: 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWERED BY C13 Engine Disassembly and Assembly 345C Excavator and 345C MHPU Mobile Hydraulic Power Unit Machine Systems Media Number -RENR8612-06 Publication Date -01/02/2013 Date Updated -21/02/2013 i02429546 Travel Motor - Install SMCS - 4351-012 Installation Procedure Table 1 Required Tools Tool Part Number Part Description Qty Threaded Rod M 20 X 2.5 by 18 inch A - 2 B 140-7742 Sleeve 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. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  17. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 2/2 Illustration 1 g01213930 Illustration 2 g01213930 1. Install Tooling (A) as a guide. Attach Tooling (B) and a suitable lifting device onto travel motor (4). The weight of travel motor assembly (4) is approximately 127 kg (280 lb). Position travel motor assembly (4) and install bolts (3). Illustration 3 g01213929 2. Install bolts (2). Connect hose assemblies (1). End By: a. Install the counterbalance valve. Refer to Disassembly and Assembly, "Counterbalance Valve (Travel) - Install". Copyright 1993 - 2020 Caterpillar Inc. Sat Aug 1 10:52:59 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  18. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 1/4 Shutdown SIS Previous Screen Product: MOBILE HYD POWER UNIT Model: 345C MOBILE HYD POWER UNIT M3F Configuration: 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWERED BY C13 Engine Disassembly and Assembly 345C Excavator and 345C MHPU Mobile Hydraulic Power Unit Machine Systems Media Number -RENR8612-06 Publication Date -01/02/2013 Date Updated -21/02/2013 i02429611 Final Drive and Travel Motor - Remove SMCS - 4050-011; 4351-011 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A Block 1 1U-6221 Hydraulic Torque Wrench Assembly 1 B 132-8154 3/4 inch Square Drive Link 1 132-8223 Power Pack 1 C 138-7575 Link Bracket 2 Note: The final drive sprocket does not need to be removed prior to removal of the final drive. The sprocket must be removed in order to disassemble the final drive. Note: The procedure to remove the right hand final drive and the procedure to remove the left hand final drive is identical. The procedure that follows is for one of the final drives. 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. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  19. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 2/4 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. 1. Release track tension. Refer to Operation and Maintenance Manual, "Track Adjustment - Adjust". Illustration 1 g01213996 2. Start the machine and position track roller (1) on Tooling (A). Make sure that the pin for separating the track is positioned over the final drive. 3. Separate the track. Refer to Disassembly and Assembly, "Track - Seperate". 4. Drain the final drive. Refer to Operation and Maintenance Manual, "Final Drive Oil - Change". 5. Remove the counterbalance valve. Refer to Disassembly and Assembly, "Counterbalance Valve - Remove and Install". https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  20. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 3/4 Illustration 2 g01214021 6. Attach two lifting slings and a suitable lifting device to final drive (2), as shown. It may be necessary to adjust the lifting straps for correct balance of the final drive. Illustration 3 g01214049 Illustration 4 g01214023 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  21. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 4/4 7. Disconnect hose assemblies (3). Remove fittings (4) and bolts (5). 8. Use Tooling (B) to remove bolts (5) and the washers that hold the final drive to the undercarriage frame assembly. Carefully remove the final drive and the travel motor from the undercarriage frame assembly. The combined weight of the final drive and the travel motor is 725 kg (1600 lb). Illustration 5 g01214002 9. Invert final drive assembly (6) onto the cover, as shown. 10. Attach Tooling (C) and a suitable lifting device in order to remove travel motor (6). The weight of travel motor assembly (6) is approximately 127 kg (280 lb). Remove travel motor assembly (6). Copyright 1993 - 2020 Caterpillar Inc. Sat Aug 1 10:53:56 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  22. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 1/13 Shutdown SIS Previous Screen Product: MOBILE HYD POWER UNIT Model: 345C MOBILE HYD POWER UNIT M3F Configuration: 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWERED BY C13 Engine Disassembly and Assembly 345C Excavator and 345C MHPU Mobile Hydraulic Power Unit Machine Systems Media Number -RENR8612-06 Publication Date -01/02/2013 Date Updated -21/02/2013 i05331566 Final Drive - Disassemble SMCS - 4050-015 Disassembly Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 1P-2420 Transmission Stand Group 1 B 138-7573 Link Bracket 2 C 1P-1860 Retaining Ring Pliers 1 D 4C-8359 Eyebolt 3 E 4C-8359 Eyebolt 2 F 138-7574 Link Bracket 2 Start By: A. Remove the final drive. Refer to Disassembly and Assembly, "Final Drive and Travel Motor - Remove" in this manual. 1. Thoroughly clean the outside of the final drive and travel motor prior to disassembly. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  23. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 2/13 Illustration 1 g01207795 2. Remove coupling (1) from final drive (2) . 3. Attach a suitable lifting device to the final drive, and turn final drive (2) over 180 degrees. The weight of final drive (2) is approximately 590 kg (1300 lb). Illustration 2 g01207796 4. Attach the final drive to Tooling (A) . Put an alignment mark across the sections of the final drive for assembly purposes. All parts must be reinstalled in the original locations. 5. Remove socket head screws (3) from the final drive cover. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  24. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 3/13 Illustration 3 g01207801 6. Attach Tooling (B) and a suitable lifting device to cover (5) , as shown. The weight of cover (5) is approximately 52 kg (115 lb). 7. Remove bolts (4) and the washers that hold the cover in place. 8. Use a soft faced hammer in order to break the seal between cover (5) and the ring gear. Remove cover (5) . The weight of cover (5) is 52 kg (115 lb). Illustration 4 g01207835 9. Remove spacer (6) from the cover. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  25. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 4/13 Illustration 5 g01207845 10. Remove shims (7) from the cover. 11. Remove socket head bolts (8) and ring gear (9) from the cover. Illustration 6 g01207864 12. Remove sun gear (10) from carrier assembly (11) . Remove carrier assembly (11) by lifting the carrier assembly straight up. 13. Disassemble carrier assembly (11) , as follows: https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  26. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 5/13 Illustration 7 g01207865 a. Remove spacers (12) . A spacer is located on each side of the sun gear in carrier assembly (11) . Note: Planetary gears (15) might be stamped with identification marks "L". Note the position of the identification marks in relation to the carrier for assembly purposes. Illustration 8 g01207897 b. Remove retaining ring (13) with Tooling (C) . c. Remove thrust washers (14) and planetary gear (15) from the carrier. d. Remove bearing (16) from the planetary gear. e. Repeat Steps 13.b through 13.d for the other two planetary gears. Illustration 9 g01208035 f. Use a screwdriver in order to remove retaining ring (17) from the carrier. Remove sun gear (18) from the carrier. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  27. Thank you very much for your reading. Please Click Here. Then Get COMPLETE MANUAL. NO WAITING NOTE: If there is no response to click on the link above, please download the PDF document first and then click on it.

  28. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 6/13 Illustration 10 g01208136 14. Attach Tooling (D) and a suitable lifting device to carrier assembly (19) , as shown. Remove carrier assembly (19) by pulling the carrier assembly straight up. The weight of carrier assembly (19) is approximately 45 kg (100 lb). 15. Disassemble carrier assembly (19) , as follows: Note: Spacer (20) may remain with carrier assembly (19) , or the spacer may remain with carrier assembly (28) . Refer to Step 17. Illustration 11 g01208162 a. Remove spacer (20) from carrier assembly (19) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  29. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 7/13 Illustration 12 g01208169 b. Drive spring pin (21) into planetary shaft (22) with a hammer and a punch. Illustration 13 g01208189 c. Remove planetary shaft (22) , two thrust washers (23) and planetary gear (24) from the carrier. Note: Planetary gears (24) might be stamped with identification marks "M". Note the position of the identification marks in relation to the carrier for assembly purposes. d. Remove bearing (25) from the planetary gear. e. Remove spring pin (21) from planetary shaft (22) with a hammer and a punch. f. Repeat Steps 15.b through 15.e in order to remove the other two planetary gears from the carrier. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  30. 345C & 345C L Mobile Hydraulic Power Units M3F00001-UP (MACHINE) POWER... 8/13 Illustration 14 g01208245 g. Use a screwdriver to remove retaining ring (26) . Remove sun gear (27) from the carrier. Illustration 15 g01208253 16. If spacer (20) was not removed in Step 15.a, remove the spacer from carrier assembly (28) at this time. Illustration 16 g01208256 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/8/1

  31. https://www.aservicemanualpdf.com/ My Dear Friend! Thank you very much for visiting. Full manual if required, please enter the following URL into your browser. https://www.aservicemanualpdf.com/

More Related