Caterpillar Cat 345C and 345C L Hydraulic Excavator (Prefix PJW) Service Repair Manual Instant Download

Service Repair Manual Models 345C and345C L Excavator

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 1/20 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 345C EXCAVATOR PJW Configuration: 345C L Hydraulic Excavator PJW00001-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 i05970668 Final Drive - Assemble SMCS - 4050-016 Assembly Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 1P-2420 Transmission Repair Stand 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 G 8T-0531 Duo-Cone Seal Installer As 1 H 4C-5599 Anti-Seize Compound 1 J 9S-3263 Thread Lock Compound 1 K 1U-8846 Gasket Sealant 1 L 6V-7059 Micrometer 1 M 1U-9895 Crossblock 1 1. Make sure that all parts of the final drive are thoroughly clean and free of dirt and debris prior to assembly. Check the condition of all O-ring seals that are used in the final drive. If https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 2/20 any of the seals are damaged, use new parts for replacement. Reassemble the final drive on Tooling (A) . Illustration 1 g01208879 2. Apply Tooling (H) to the surfaces inside sprocket housing (35) that makes contact with the bearing cups. Install a bearing cup that is in each side of the sprocket housing with a press. Make sure that the bearing cups are properly seated. 3. Apply Tooling (H) to the surfaces inside the motor housing that makes contact with bearing cones (42) . 4. Install inner bearing cone (42) on the motor housing. Illustration 2 g01208625 5. Apply Tooling (F) and a suitable lifting device to sprocket housing (35) , as shown. The weight of sprocket housing (35) is approximately 127 kg (280 lb). Install sprocket housing (35) on the motor housing. Carefully install outer bearing cone (42) on the sprocket housing. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

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345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 3/20 Illustration 3 g01208578 6. Adjust the bearing preload of the final drive. Determine the correct number of shims (40) that are required for the proper bearing preload, as follows: Illustration 4 g01208987 a. Use a depth micrometer in order to measure the step height of coupling gear (38) at several locations around the gear. Find the average for the measured dimensions around the gear and record the dimension. Call this Dimension (X) . b. Apply a load of 10000 kg (22000 lb)to bearing cones (42) . c. Rotate sprocket housing (35) several times in order to seat the bearing cones. d. Reduce the load to 3500 350 kg (7700 770 lb). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 4/20 Illustration 5 g00631001 Illustration 6 g03742848 e. While the load is still on the bearing cones, measure the distance between the top face of the motor housing and the top face of bearing cone (42) . Take measurements in several locations around the motor housing. Find the average of the measured dimensions, and record the dimensions. Call this Dimension (Y) . f. Determine the correct thickness of shims (40) which are used between bearing cone (42) and coupling gear (38) . Use the following equation in order to determine the shim pack thickness. Shim pack thickness ... (X) (Y) 0.05 mm (0.002 inch) Note: If shims (40) are required, install the thinnest shim next to coupling gear (38) during final assembly. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 5/20 Illustration 7 g01208625 7. Apply Tooling (F) and a suitable lifting device to sprocket housing (35) , as shown. Separate sprocket housing (35) from the motor housing. ReferenceRefer to Disassembly and Assembly, "Duo-Cone Conventional Seals - Install". Note: The rubber seals and all surfaces that makes contact with the seals must be clean and dry. After installation of the seals, put clean SAE 30 oil on the contact surfaces of the metal seals. Illustration 8 g00631006 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 6/20 Illustration 9 g01208999 8. Install Duo-Cone seal kit (43) in the sprocket housing with Tooling (G) . Illustration 10 g00631014 Illustration 11 g01208626 Illustration 12 g01208625 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 7/20 9. Install Duo-Cone seal kit (41) in the motor housing with Tooling (G) . 10. ApplyTooling (H) in the bores for the locating pins that are in the motor housing. Reinstall the locating pins in the motor housing. 11. Make sure that inner bearing cone (42) is seated properly on the motor housing. Note: Do not scratch Duo-Cone seal gp (41) or damage the Duo-Cone seal gp in the main housing, or the motor housing during assembly of the two components. After installation of the main housing on the motor housing, there will be a small gap between the components. The gap between the components is caused by the Duo-Cone seal kit. This will be eliminated during the installation of the coupling gear. 12. Attach Tooling (F) and a suitable lifting device to sprocket housing (35) , as shown. Carefully install the sprocket housing on the motor housing. 13. Install outer bearing cone (42) on the sprocket housing. Make sure that the outer bearing cone is properly seated. Illustration 13 g01208578 14. Install shims (40) that were determined in Steps 6.a through 6.f on the end of the sprocket housing, as shown. If shims were required, make sure that the thinnest shim is installed on top. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 8/20 Illustration 14 g01208553 15. Put coupling gear (38) in the original position on the motor housing. 16. Apply Tooling (J) on the threads of bolts (37) that hold coupling gear (38) in position. Tighten bolts (37) evenly and tighten the bolts in diagonally opposite pairs. Illustration 15 g01208542 17. Install O-ring seal (36) in sprocket housing (35) . Illustration 16 g01208300 18. Thoroughly clean the mating surface of sprocket housing (35) that will make contact with ring gear (34) . 19. Apply a bead of Tooling (K) on the mating surface of ring gear (34) . 20. Attach Tooling (E) and a suitable lifting device to ring gear (34) . Put ring gear (34) in position on the sprocket housing. The weight of ring gear (34) is approximately 82 kg (180 lb). Make sure that the alignment mark up on the sprocket housing and the ring gear line with each other. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 9/20 Illustration 17 g01208280 Illustration 18 g01208265 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 10/20 Illustration 19 g00513451 21. Assemble carrier assembly (28) , as follows: Note: If planetary gear (32) is stamped with an "N", make sure that the planetary gear identification grooves are facing in the correct direction, which was noted during the disassembly of the carrier assembly (28) . a. Assemble carrier assembly (28) . b. Put clean SAE 30 oil on bearings (33) . c. Install bearings (33) in planetary gear (32) . d. Install a thrust washer (31) on each side of the planetary gear. e. Install the planetary gear and thrust washers in carrier (28) . f. Install planetary shaft (30) in carrier (28) and through planetary gear (32) . Make sure that the spring pin hole in the planetary shaft is in alignment with the spring pin hole in the carrier. g. Install spring pin (29) in the carrier and into the planetary shaft. Install the spring pin until the spring pin is even with the outside surface of the carrier. Orient the split in the spring pin horizontally to the carrier. Align the split in the spring pin to the left or to the right. Refer to Illustration 19. h. Make a stake mark on each side of the spring pin hole in the carrier. This will prevent the spring pin from falling out of the spring pin hole. Each stake mark should be approximately 1.5 to 3.00 mm (.59 to .118 inch) from the spring pin hole. i. Repeat Steps 21.a through 21.h in order to install the remaining three planetary gears in carrier (30) . Illustration 20 g01208256 22. Attach Tooling (E) and a suitable lifting device to carrier assembly (28) . The weight of carrier assembly (28) is approximately 64 kg (140 lb). Put carrier assembly (28) in position https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 11/20 in the ring gear. It will be necessary to rotate carrier assembly (28) back and forth during installation in order to engage all the gears properly. Illustration 21 g01208253 23. Install spacer (20) on carrier assembly (28) . 24. Assemble carrier assembly (19) , as follows: Illustration 22 g01208245 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 12/20 Illustration 23 g01208189 Illustration 24 g01208169 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 13/20 Illustration 25 g00513451 Note: If planetary gear (24) is stamped with an "M", make sure that the planetary gear's identification grooves are facing in the correct direction, which was noted during the disassembly of carrier assembly (19) . a. Install sun gear (27) in carrier assembly (19) . Refer to Illustration 22. b. Use a screwdriver to install retaining ring (26) that holds sun gear (27) in the carrier. c. Put clean SAE 30 oil on bearing (25) . Install bearing (25) in planetary gear (24) . d. Install a thrust washer (23) on each side of the planetary gear. e. Install the thrust washers and the planetary gear in carrier (19) . f. Install planetary shaft (22) in carrier (19) and through planetary gear (24) . Make sure that the spring pin hole in the carrier is in alignment with the spring pin hole in the planetary shaft. g. Install spring pin (21) in the carrier and into the planetary shaft. Install the spring pin until the spring pin is even with the outside surface of the carrier. Orient the split in the spring pin horizontally to the carrier. Align the split in the spring pin to the left or to the right. Refer to Illustration 25. h. Make a stake mark on each side of the spring pin hole in the carrier.Staking will prevent the spring pin from falling out of the spring pin hole. Each stake mark should be approximately 1.5 to 3.00 mm (.59 to .118 inch) from the spring pin hole. i. Repeat Steps 24.a through 24.h in order to install the other two planetary gears in carrier (19) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 14/20 Illustration 26 g01208136 25. Attach Tooling (D) and a suitable lifting device to carrier assembly (19) . The weight of carrier (19) is approximately 45 kg (100 lb). Put the carrier assembly in position in ring gear (34) . It may be necessary to rotate the carrier assembly back and forth during installation in order to engage the gears properly. 26. Assemble carrier assembly (11) , as follows: Illustration 27 g01208035 Illustration 28 g01207897 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 15/20 Illustration 29 g01207865 Illustration 30 g01209086 Note: If planetary gear (13) is stamped with an "L", make sure that the planetary gear identification marks are facing in the direction, which was noted during the disassembly of carrier (11) . a. Install sun gear (18) in carrier (11) . Refer to Illustration 27. b. Use a screwdriver in order to install retaining ring (17) that holds the sun gear (18) in carrier (11) . c. Put clean SAE 30 oil on bearing (16) , and install bearing (16) in planetary gear (15) . d. Install a thrust washer (14) on each side of the planetary gear. e. Install the planetary gear and thrust washers on the shaft of carrier (11) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 16/20 f. Use Tooling (C) in order to install retaining ring (13) that holds the planetary gear in position. Make sure that the retaining ring is installed correctly. Refer to Illustration 30. g. Repeat Steps 26.a through 26.f in order to install the remaining two planetary gears on carrier assembly (11) . Illustration 31 g01209158 27. Install a spacer (12) on each side of sun gear (18) in carrier (11) . 28. Install carrier (11) in carrier assembly (19) . Illustration 32 g01209163 29. Install sun gear (10) in carrier (11) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 17/20 Illustration 33 g00631068 30. Use a 25.4 mm (1.00 inch) thick straight edge and a depth micrometer in order to measure Dimension (P) . Dimension (P) is between the upper surface of sun gear (10) and the machined surface of ring gear (34) . Call this Dimension (P) . Illustration 34 g00631074 31. Use a 25.4 mm (1.00 inch) thick straight edge and a depth micrometer in order to measure Dimension (Q) . Dimension (Q) is from the machined surface of cover (5) to the bottom of the insertion hole for shim (7) . Call this Dimension (Q) . 32. Use Tooling (L) to measure the thickness of spacer (6) . Record this measurement as Dimension (R) . 33. Determine the correct thickness of shims (7) . Shims (7) control the amount of end play of sun gear (10) . The clearance should be between 1.00 to 2.60 mm (0.04 inch to 0.102 inch). Use the following equation in order to determine the amount of required shims. Shim pack thickness ... (Q) (P) (R) https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 18/20 Illustration 35 g01207845 34. Put ring gear (9) in position in cover (5) . Make sure that all of the mounting bolt holes in both components are in alignment with each other. Apply Tooling (J) on the threads of socket head bolts (8) that hold ring gear (9) in place. Install the bolts, and tighten the bolts evenly. 35. Install the correct thickness of shims (7) that were determined in Steps 30 through 33 into cover (5) . Illustration 36 g01207835 36. Install spacer (6) in cover (5) . It may be necessary to use a soft faced hammer to seat the spacer. 37. Make sure that the machined surface of ring gear (34) is thoroughly clean and dry and that the machined surface is free of dirt and debris. 38. ApplyTooling (K) around the machined surface of the ring gear. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 19/20 Illustration 37 g01207801 39. Attach Tooling (B) and a suitable lifting device to cover (5) . The weight of cover (5) is approximately 52 kg (115 lb). Put the cover in the original position on the ring gear. It will be necessary to rotate the cover back and forth in order to engage the planetary gears of carrier assembly (11) with the ring gear in the cover (5) . 40. Remove the suitable lifting device and Tooling (B) from the cover. Illustration 38 g01207796 41. Apply Tooling (J) on the threads of socket head screws (3) . 42. Reinstall socket head screws (3) in cover (5) . 43. Apply Tooling (J) on the threads of bolts (4) that hold cover (5) in position. Install the washers and bolts (4) . Tighten the bolts evenly. 44. Attach a suitable lifting device to the final drive, and invert the final drive over 180 degrees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Eng... 20/20 Illustration 39 g01207795 45. Install spacer (1) to final drive (2) . End By: Install the final drive and the travel motor. Refer to Disassembly and Assembly, "Final Drive and Travel Motor - Install". Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 23 12:35:30 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... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 1/3 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 345C EXCAVATOR PJW Configuration: 345C L Hydraulic Excavator PJW00001-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 i07186056 Final Drive and Travel Motor - Install SMCS - 4050-012; 4351-012 Installation 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 439 3940 Bracket As 2 D - Loctite 243 - Note: The procedure to install the right hand final drive and the procedure to install the left hand final drive is identical. The procedure that follows is for one of the final drives. Note: The mounting surface for the final drive and the track roller frame must be clean prior to assembly. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 2/3 Illustration 1 g01214021 1. Attach a suitable lifting device to the final drive (2), as shown. The combined weight of the final drive and the travel motor is 725 kg (1600 lb). It may be necessary to adjust the lifting slings for correct balance of the final drive. Position the final drive and the travel motor on the track roller frame, as shown. Illustration 2 g01214023 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 3/3 Illustration 3 g01214049 2. Before assembly, remove compound, oil, and dust from female threads, then apply Tooling (D) to the threads of bolts (5). 3. Use Tooling (B) to tighten bolts (5) in an alternating sequence to a torque of 250 25 N m (184 18 lb ft). Turn an additional angle of 45 5 degrees. Refer to Service Magazine , M0083843 , "An Improved Bolt Tightening Procedure for the Critical Joints Is Now Used on all Excavators" for more detailed information. 4. Install fittings (4) and hose assemblies (3). 5. Fill the final drive. Refer to Operation and Maintenance Manual, "Final Drive - Change". 6. Connect the track. Refer to Disassembly and Assembly, "Track - Connect". 7. Install the counterbalance valve. Refer to Disassembly and Assembly, "Counterbalance valve - Change". Illustration 4 g01214117 NOTICE To avoid system damage, make sure that the hydraulic motor is properly filled with hydraulic oil before start-up. 8. Start the machine and reposition in order to remove Tooling (A). 9. Adjust the track tension. Refer to Operation and Maintenance Manual, "Track Adjustment - Adjust". Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 23 12:36:26 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... 2020/7/23

345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 1/3 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 345C EXCAVATOR PJW Configuration: 345C L Hydraulic Excavator PJW00001-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 i02430596 Swivel - Remove SMCS - 5060-011 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A FT-2674 Vacuum Cap 1 B 1U-7505 Hydraulic Jack 1 C 138-7575 Link Bracket 2 Start By: A. Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release". 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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

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345C L Hydraulic Excavator PJW00001-UP (MACHINE) POWERED BY C13 Engin... 2/3 Dispose of all fluids according to local regulations and mandates. Note: Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. 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. 1. Install Tooling (A) onto the hydraulic tank. Attach an air supply hose onto Tooling (A). Apply 276 to 414 kPa (40 to 60 psi) of air. This procedure will pull vacuum on the hydraulic system. Illustration 1 g01216634 2. Position Tooling (B) under guards (1). Remove bolts (2). Remove guards (1). The weight of each of guards (1) are approximately 25 kg (55 lb). Note: The weight of guards (1) can increase due to debris on the top of guards (1) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/7/23

https://www.ebooklibonline.com Hello dear friend! Thank you very much for reading. Enter the link into your browser. The full manual is available for immediate download. https://www.ebooklibonline.com