Caterpillar Cat 641B WHEEL TRACTOR (Prefix 67K) Service Repair Manual (67K00605 and up)

1. Service Repair Manual Models 641B and651B WHEEL TRACTOR

2. w 1/6(W) Shutdown SIS Previous Screen Product: WHEEL TRACTOR Model: 651B WHEEL TRACTOR 67K Configuration: 641B & 651B TRACTORS 67K00605-UP (MACHINE) POWERED BY D346 ENGINE Disassembly and Assembly 3408E and 3412E Engines for Caterpillar Built Machines Media Number -SENR1013-11 Publication Date -01/07/2015 Date Updated -22/08/2016 i06177964 Camshaft - Remove and Install SMCS - 1210-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 1P-0510 Driver Group 1 Start By: a. Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove". b. Remove the lifter group. Refer to Disassembly and Assembly, "Lifter Group - Remove and Install". c. Remove the flywheel housing. Refer to Disassembly and Assembly, " Flywheel Housing - Remove and Install". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. NOTICE https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

3. w 2/6(W) 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, "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. Illustration 1 g00572086 1. Remove four bolts (1) and plate (2) from the rear of the camshaft. Remove gear (3) from the camshaft. Illustration 2 g00572090 2. Rotate the engine until the “V” marks on the front of the timing gears are in alignment. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

4. w 3/6(W) Illustration 3 g00572095 3. Remove two bolts (5) and plate (4) from the camshaft. Illustration 4 g00572105 4. Remove camshaft (6) from the cylinder block. Illustration 5 g00572214 5. If necessary, remove camshaft gear (7) with Tool (A) and press. Installation Procedure https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

5. w 4/6(W) NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Illustration 6 g00572220 Note: The key for gear (7) must be in position on the camshaft (6) before gear (7) is installed. 1. Do not use a torch to heat camshaft gear (7). Raise the temperature of camshaft gear (7) by one of the following methods. ◦ Use a suitable oven to raise the temperature of camshaft gear (7). Do not exceed 150° C (302° F) for more than four hours. ◦ Use a suitable induction heater to raise the temperature of the hub of camshaft gear (7). Do not exceed 150° C (302° F) at bottom of gear teeth root radius. 2. Install camshaft gear (7) to camshaft (6). 3. Put 8T-2998 Lubricant on the camshaft lobes and the rollers for the valve lifter. Put clean engine oil on the bearing journals of the camshaft. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

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7. w 5/6(W) Illustration 7 g00572105 4. Install camshaft (6) until the rear of the camshaft is even with the rear of the cylinder block. Illustration 8 g00572090 5. Make an alignment of the “V” marks on the camshaft gear and the idler gear. Illustration 9 g00572221 6. Install plate (4) on the cylinder block. Illustration 10 g00572086 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

8. w 6/6(W) 7. Install gear (3) and plate (2) on the rear of the camshaft. End By: a. Install the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing - Remove and Install". b. Install the lifter group. Refer to Disassembly and Assembly, "Lifter Group - Remove and Install". c. Install the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Install". Copyright 1993 - 2021 Caterpillar Inc. Mon Feb 22 15:21:55 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

9. w 1/5(W) Shutdown SIS Previous Screen Product: WHEEL TRACTOR Model: 651B WHEEL TRACTOR 67K Configuration: 641B & 651B TRACTORS 67K00605-UP (MACHINE) POWERED BY D346 ENGINE Disassembly and Assembly 3408E and 3412E Engines for Caterpillar Built Machines Media Number -SENR1013-11 Publication Date -01/07/2015 Date Updated -22/08/2016 i01519738 Camshaft Bearings - Remove and Install SMCS - 1211-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty 8S-2241 Camshaft Bearing Tool Group 1 A 8S-8293 Extension 1 5P-1667 Tube 1 Start By: A. Remove the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing - Remove and Install". B. Remove the camshaft. Refer to Disassembly and Assembly, "Camshaft - Remove and Install". C. Remove the pistons and connecting rods. Refer to Disassembly and Assembly, "Pistons and Connecting Rods - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

10. w 2/5(W) 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 Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. Illustration 1 g00569925 1. Remove the rear camshaft bearing with Tool (A) . 2. Remove the remainder of the camshaft bearings with Tool (A) through the rear of the engine block. Start from the rear of the cylinder block and move toward the front. Installation Procedure Table 2 Required Tools Tool Part Number Part Description Qty 8S-2241 Camshaft Bearing Tool Group 1 A 8S-8293 Extension 1 5P-1667 Tube 1 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

11. w 3/5(W) NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: Ensure that the inside of the cylinder block is clean. Inspect the camshaft bore for metal burrs. Put a thin film of clean engine oil on the inside of the camshaft bearing bores and on each camshaft bearing prior to installation. Note: Two different camshaft bearings are used. Install the wider camshaft bearings in the front and rear camshaft bores. Install the narrow camshaft bearings in the inner bores. Illustration 2 g00570127 1. Install all the camshaft bearings with Tool (A) so that the oil hole in the camshaft bearing is in a horizontal position. Installation angle (1) is 90 ± 15°. 2. Install the camshaft bearings with Tool (A) on the front side of the engine. Start the bearing that is being installed from the rear of each bore. Pull the bearing into the bore with Tool (A). Use the following procedure for achieving the proper installation depth for the bearings. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

12. w 4/5(W) Illustration 3 g00583232 a. Install the rear camshaft bearing. Pull the bearing into the bore until the front face of the bearing is flush with the front face of bore (2). b. Install the narrow internal camshaft bearings. Start at the rear of the engine and work forward. Pull each bearing into the bore until the front face of the bearing is flush with the front face of the bore. Illustration 4 g00569930 Measure the depth of the front camshaft bearing. c. Install the front camshaft bearing with Tool (A) until the bearing is at the specified depth. the depth is measured from the front of the engine block. The front camshaft bearing for the 3412E should be 7.4 ± 0.5 mm (0.29 ± 0.02 inch) from the front face of the engine block. The front camshaft bearing for the 3408E should be 4.6 ± 0.5 mm (0.18 ± 0.02 inch) from the front face of the engine block. Note: Refer to Specifications, "Camshaft Bearings" for more information about camshaft bearings. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

13. w 5/5(W) End By: a. Install the camshaft. Refer to Disassembly and Assembly, "Camshaft - Remove and Install". b. Install the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing - Remove and Install". c. Install the pistons and connecting rods. Refer to Disassembly and Assembly, "Pistons and Connecting Rods - Install". Copyright 1993 - 2021 Caterpillar Inc. Mon Feb 22 15:22:51 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

14. w 1/4(W) Shutdown SIS Previous Screen Product: WHEEL TRACTOR Model: 651B WHEEL TRACTOR 67K Configuration: 641B & 651B TRACTORS 67K00605-UP (MACHINE) POWERED BY D346 ENGINE Disassembly and Assembly 3408E and 3412E Engines for Caterpillar Built Machines Media Number -SENR1013-11 Publication Date -01/07/2015 Date Updated -22/08/2016 i01057286 Engine Oil Pan - Remove and Install SMCS - 1302-010 Removal Procedure 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. Dispose of all fluids according to local regulations and mandates. NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

15. w 2/4(W) Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin. 1. Drain the oil from the engine oil pan into a suitable container for storage or disposal. Illustration 1 g00552331 Typical example 2. Remove tube assembly (1). Remove the gaskets. Illustration 2 g00552333 Typical example 3. Remove bolts (2) from engine oil pan (3). 4. Use two technicians in order to remove engine oil pan (3). The weight of the engine oil pan for the 3408E is approximately 14 kg (31 lb). The weight of the engine oil pan for the 3412E is approximately 27 kg (60 lb). 5. Thoroughly remove gasket (4) from the engine oil pan and the cylinder block. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

16. w 3/4(W) Make sure that all of the old gasket material has been removed from the mating surfaces of the engine oil pan and the cylinder block. Make sure that all surfaces are clean and free of dirt and debris. Installation Procedure NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 1. Use 5H-2471 Adhesive to install a new gasket on the engine oil pan. Illustration 3 g00552333 Typical example 2. Put new gasket (4) into position on engine oil pan (3). 3. Use two technicians in order to put engine oil pan (4) in position on the engine. The weight of the engine oil pan for the 3408E is approximately 14 kg (31 lb). The weight of the engine oil pan for the 3412E is approximately 27 kg (60 lb). 4. Install bolts (2) that hold engine oil pan (3) to the cylinder block. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

17. w 4/4(W) Illustration 4 g00552331 Typical example 5. Install tube assembly (1). 6. Fill the engine to the correct level with the recommended oil. Refer to the Operation and Maintenance Manual. Copyright 1993 - 2021 Caterpillar Inc. Mon Feb 22 15:23:49 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

18. w 1/2(W) Shutdown SIS Previous Screen Product: WHEEL TRACTOR Model: 651B WHEEL TRACTOR 67K Configuration: 641B & 651B TRACTORS 67K00605-UP (MACHINE) POWERED BY D346 ENGINE Disassembly and Assembly 3408E and 3412E Engines for Caterpillar Built Machines Media Number -SENR1013-11 Publication Date -01/07/2015 Date Updated -22/08/2016 i05661411 Cylinder Liner - Remove SMCS - 1216-011 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty 5P-8665 Cylinder Liner Puller Gp 1 A 6V-9448(1) Cylinder Pack Puller Gp 1 373-1438(2) Cylinder Pack Puller Gp 1 (1)Alternative option to remove liner, piston, and connecting rod as an assembly for 137 mm (5.4 inch) and 140 mm (5.5 inch) bore diameters. (2)Alternative option to remove liner, piston, and connecting rod as an assembly for 145 mm (5.7 inch) bore diameter. Start By: a. Remove the pistons and connecting rods. Refer to Disassembly and Assembly, "Pistons and Connecting Rods - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

19. w 2/2(W) Illustration 1 g01005579 1. Remove cylinder liner (1) with Tooling (A). Copyright 1993 - 2021 Caterpillar Inc. Mon Feb 22 15:24:42 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

20. w 1/4(W) Shutdown SIS Previous Screen Product: WHEEL TRACTOR Model: 651B WHEEL TRACTOR 67K Configuration: 641B & 651B TRACTORS 67K00605-UP (MACHINE) POWERED BY D346 ENGINE Disassembly and Assembly 3408E and 3412E Engines for Caterpillar Built Machines Media Number -SENR1013-11 Publication Date -01/07/2015 Date Updated -22/08/2016 i02854134 Cylinder Liner - Install SMCS - 1216-012 Installation Procedure Table 1 Required Tools Tool Part Number Part Description Qty 7H-3598 Bolt 6 A 8F-1484 Washer (Steel) 6 7K-1977 Washer (Fiber) 6 B 8T-0455 Liner Projection Tool Group 1 C 2P-8260 Cylinder Liner Installer 1 D 8S-3140 Counterbore 1 E 5P-3975 Rubber Lubricant - NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

21. w 2/4(W) Illustration 1 g00517900 1. Install a clean liner or cylinder pack (1) in the cylinder block without the filler band or the rubber seals. Illustration 2 g00505048 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

22. w 3/4(W) Illustration 3 g00505050 2. Install Tooling (A) around the cylinder liner bore. Tighten the six bolts from Tooling (A) evenly in four steps to a torque of 95 N·m (70 lb ft). 3. Use Tooling (B) to measure the cylinder liner projection at locations A, B, C, and D. Note: Measure the cylinder liner projection around the cylinder liner. Dimensions for the cylinder liner projections must be within specifications. If the dimensions are not in tolerance, rotate the cylinder liner to a new position in the cylinder bore. It may be necessary to move the cylinder liner to a different cylinder bore. Check the cylinder liner projection again. 4. Dimensions for the cylinder liner projection must be within specifications. The machined counterbore surface to the top surface of the cylinder block can be changed. Note: Refer to Special Instruction, FM055228, "Using Caterpillar Cylinder Pack Pulling Tools" for additional information in the use of Tooling (D). Refer to Testing and Adjusting, "Cylinder Liner Projection - Inspect" in order to find the thickness of the shims, the part number and the installation procedure for the cylinder liner. 5. Put a mark on cylinder liner (1) and the spacer plate so the cylinder liner can be installed in the same position. Remove Tooling (A) and Tooling (B). Remove cylinder liner (1). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

23. w 4/4(W) Illustration 4 g00575805 Note: Apply Tooling (E) and clean engine oil immediately before assembly. If Tooling (E) or engine oil is applied too early, the filler bands and O-ring seals may swell and the filler bands and O-ring seals may be pinched under the cylinder liner during installation. 6. Apply Tooling (E) on the three lower seals (3) and the cylinder bore. Install the three bottom seals on the cylinder liner. 7. Immerse upper filler band (2) in clean engine oil. Install the filler band on the cylinder liner. 8. Install the cylinder immediately into the cylinder block. Illustration 5 g00505054 9. Use Tooling (C) to install cylinder liner (1) in the cylinder block. Make sure that the marks on the cylinder liner and the marks on the spacer plate are in alignment. Note: Refer to Special Instruction, SEHS9564, "Cylinder Liner Projection" for additional information about cylinder liner installation. End By: a. Install the piston and connecting rods. Refer to Disassembly and Assembly, "Piston and Connecting Rods - Install". Copyright 1993 - 2021 Caterpillar Inc. Mon Feb 22 15:25:38 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

24. w 1/3(W) Shutdown SIS Previous Screen Product: WHEEL TRACTOR Model: 651B WHEEL TRACTOR 67K Configuration: 641B & 651B TRACTORS 67K00605-UP (MACHINE) POWERED BY D346 ENGINE Disassembly and Assembly 3408E and 3412E Engines for Caterpillar Built Machines Media Number -SENR1013-11 Publication Date -01/07/2015 Date Updated -22/08/2016 i01102911 Piston Cooling Jets - Remove and Install SMCS - 1331-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 9S-9082 Engine Turning Tool 1 Start By: a. Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

25. w 2/3(W) Illustration 1 g00580930 Typical example 1. Remove bolt (1). Remove piston cooling jets (2) from the engine. Use Tool (A) in order to turn the crankshaft in a clockwise direction in order to gain access to each of the piston cooling jets. Repeat this process for all of the piston cooling jets. Installation Procedure Table 2 Required Tools Tool Part Number Part Description Qty A 9S-9082 Engine Turning Tool 1 B 5P-8709 Cooling Jet Alignment Tool 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

26. w 3/3(W) Illustration 2 g00580930 Typical example 1. Check the alignment of the piston cooling jets (2) with Tool (B). Refer to Special Instructions, SMHS7267, "Use Of 5P-8709 Tool Group for Alignment Of Piston Cooling Jets" for the correct alignment procedure. 2. Install piston cooling jets (2) on the engine. Tighten bolt (1) to a torque of 25 ± 7 N·m (18 ± 5 lb ft). Use Tool (A) in order to turn the crankshaft in a clockwise direction in order to gain access to each of the piston cooling jets. Repeat this process for all of the piston cooling jets. End By: a. Install the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Install". Copyright 1993 - 2021 Caterpillar Inc. Mon Feb 22 15:26:34 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

27. w 1/2(W) Shutdown SIS Previous Screen Product: WHEEL TRACTOR Model: 651B WHEEL TRACTOR 67K Configuration: 641B & 651B TRACTORS 67K00605-UP (MACHINE) POWERED BY D346 ENGINE Disassembly and Assembly 3408E and 3412E Engines for Caterpillar Built Machines Media Number -SENR1013-11 Publication Date -01/07/2015 Date Updated -22/08/2016 i02347805 Pistons and Connecting Rods - Remove SMCS - 1225-011 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 9S-9082 Engine Turning Tool 1 Start By: a. Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove". b. Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Remove". c. Remove the piston cooling jets. Refer to Disassembly and Assembly, "Piston Cooling Jets - Remove and Install". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 1. Remove the carbon ridge from the top inside surface of the cylinder liner. 2. Use Tooling (A) and turn the crankshaft until two pistons are at the bottom center. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

28. w 2/2(W) Illustration 1 g01032888 3. Remove bolts (1) and the bearing caps. Push the connecting rods and pistons until the piston rings are out of the cylinder liners. Note: Be careful not to damage the cylinder liners and/or the crankshaft journals during the removal of the pistons and the connecting rods. Illustration 2 g01032895 4. Remove pistons (2) and connecting rods from the cylinder liners. 5. Repeat Steps 1 through 4 in order to remove the remainder of the pistons and connecting rods. Copyright 1993 - 2021 Caterpillar Inc. Mon Feb 22 15:27:30 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

29. w 1/2(W) Shutdown SIS Previous Screen Product: WHEEL TRACTOR Model: 651B WHEEL TRACTOR 67K Configuration: 641B & 651B TRACTORS 67K00605-UP (MACHINE) POWERED BY D346 ENGINE Disassembly and Assembly 3408E and 3412E Engines for Caterpillar Built Machines Media Number -SENR1013-11 Publication Date -01/07/2015 Date Updated -22/08/2016 i02854107 Pistons and Connecting Rods - Disassemble - One-Piece Piston SMCS - 1225-015 Disassembly Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 6V-6192 Pliers 1 B 7M-3978 Ring Expander 1 Start By: a. Remove the Pistons and Connecting Rods. Refer to Disassembly and Assembly, "Pistons and Connecting Rods - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

30. w 2/2(W) Illustration 1 g00581449 Note: Do not mismatch components among the piston and rod assemblies. 1. Remove bearings (3) from the connecting rod and the connecting rod cap. 2. Use Tooling (A) to remove retaining ring (1). 3. Remove pin (2) and connecting rod (4) from the piston. Illustration 2 g00507525 4. Use Tooling (B) to remove piston rings (5) from the piston. Note: The piston pin bearing is pushed out of connecting rod (4) during installation of the new bearing. Refer to Disassembly and Assembly, "Pistons and Connecting Rods - Assemble". Copyright 1993 - 2021 Caterpillar Inc. Mon Feb 22 15:28:26 UTC+0800 2021 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

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32. w 1/4(W) Shutdown SIS Previous Screen Product: WHEEL TRACTOR Model: 651B WHEEL TRACTOR 67K Configuration: 641B & 651B TRACTORS 67K00605-UP (MACHINE) POWERED BY D346 ENGINE Disassembly and Assembly 3408E and 3412E Engines for Caterpillar Built Machines Media Number -SENR1013-11 Publication Date -01/07/2015 Date Updated -22/08/2016 i03849250 Pistons and Connecting Rods - Assemble - One-Piece Piston SMCS - 1225-016 Assembly Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 6V-6192 Pliers 1 B 7B-7974 Ring Expander 1 5P-8639 Hydraulic Press (Connecting Rod Bearing) 1 8F-0024 Hose Assembly 1 1P-2375 Connecting Coupler 1 1P-2376 Connecting Coupler 1 C 5P-8651 Spacer 1 5P-8649 Adapter 1 5P-8650 Bushing Adapter 1 - Hydraulic Pump 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

33. w 2/4(W) Illustration 1 g00507526 Illustration 2 g00570892 1. Install piston pin bearing (6) in connecting rod (4), as follows: https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

34. w 3/4(W) Note: The old bearing is pushed out by Tooling (C) as the new bearing is installed. NOTICE The connecting rod must be heated for the installation of the piston pin bearing. Do not use a torch. a. Raise the temperature of length (Y) of connecting rod (4) to a temperature of 175 to 260 °C (347 to 468 °F). (Y) Maximum length for heating the connecting rod ... 85.0 mm (3.35 inch) b. Use Tooling (C) to remove the old bearing and install the new bearing at the same time. The adapter of Tooling (C) should make full contact with the surfaces of the connecting rod. Note: Orient the bearing joint within ± 5 degrees of either location (X) . c. Allow the connecting rod and the bearing to cool to room temperature. 2. Use a pin boring machine to machine the bore of the piston pin bearing to the correct diameter. Diameter of piston pin bore ... 50.830 ± 0.008 mm (2.0012 ± 0.0003 inch) 3. Check the clearance between the ends of the piston rings. Refer to Specifications, "Pistons And Rings" for additional information. Note: The oil ring is installed over the spring with the oil ring end gap 180 degrees from the oil ring spring joint. 4. Install the oil ring spring in the oil ring groove of the piston. Illustration 3 g00507525 5. Install the oil ring on the piston with Tooling (B) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2021/2/22

35. 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/