Caterpillar Cat 301.4C Mini Hydraulic Excavator (Prefix LJK) Service Repair Manual Instant Download

Service Repair Manual Models 301.4C M ini Hydraulic Excavator

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 1/3 Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 301.4C MINI HYD EXCAVATOR LJK Configuration: 301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE) Disassembly and Assembly 3TNV70 and 3TNV76 Engines for Caterpillar Built Machines Media Number -UENR3279-00 Publication Date -01/07/2013 Date Updated -23/07/2013 i05260516 Fuel Injection Lines - Remove and Install SMCS - 1252-010 Removal Procedure Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. Plugging the lines will help to prevent fluid loss, and will help to keep contaminants from entering the system. 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. Dispose of all fluids according to local regulations and mandates. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 2/3 Illustration 1 g03348893 Illustration 2 g03349705 1. Use line wrench in order to loosen fuel injection line nuts. Use two wrenched to avoid turning lower nut. Disconnect fuel injection line nuts (2) from the injector pump and the fuel injectors. Remove fuel injector line assemblies (3). Installation 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, "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. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

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301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 3/3 Illustration 3 g03348974 Illustration 4 g03349700 1. Position fuel injection lines assemblies (3) on the fuel injection pump and the fuel injectors. Start fuel injection line nuts (2) on by hand before tightening with a wrench. Hold wrench on lower nut for the return line to avoid moving the return line. Tighten fuel injection line nuts (2) to a torque of 29 to 34 N m (257 to 300 lb in). . Copyright 1993 - 2020 Caterpillar Inc. Fri Apr 17 09:05:56 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 1/5 Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 301.4C MINI HYD EXCAVATOR LJK Configuration: 301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE) Disassembly and Assembly 3TNV70 and 3TNV76 Engines for Caterpillar Built Machines Media Number -UENR3279-00 Publication Date -01/07/2013 Date Updated -23/07/2013 i05260707 Fuel Injection Pump - Remove and Install SMCS - 1251-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 8S-2264 Puller Gp 3 Start By: A. Remove fuel injection lines Note: Refer to Specifications, ""Engine Design"" for non-specified engine torques. Illustration 1 g03351476 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 2/5 1. Remove fuel injection pump drive gear access cover (1) from front housing (2). Note: The cover is secured with adhesive sealant. Use a scraper to separate the cover from the gear case. Illustration 2 g03349227 Note: After marking the position of the fuel injection pump drive gear (3) , do not rotate the engine crankshaft. Rotating the crankshaft will cause the fuel injection pump to become misaligned. 2. Place a mark on the fuel injection pump drive gear (3) and the idler gear for installation purposes. Loosen center nut (4) and back out to the end of the fuel injection pump shaft. DO NOT loosen the four bolts (5) that hold the fuel injection pump gear to the hub. Illustration 3 g03384642 Note: Do not loosen or remove the four bolts (5) retaining the fuel injection pump drive gear (3) to the fuel injection pump hub (3A). Do not disassemble the fuel injection pump drive gear from the hub. Correct fuel injection timing will be difficult or next to impossible to achieve. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 3/5 Illustration 4 g03349237 3. Install Tooling (A) onto the end of the fuel injection pump shaft nut (4). Loosen the pump drive gear (3) from the shaft, remove Tooling (A) and remove nut and washer (4) . Note: Fuel injection pump drive gear (3) can be removed from the gear case, however, would be best to let the gear remain in the gear housing. Illustration 5 g03349431 4. Locate and highlight the timing mark (9) on the base of fuel injection pump (6) for installation purposes. Make a corresponding mark on the gear case. Unplug the stop solenoid harness assembly. Remove lube oil line (7) from the fuel injection pump and the block assembly. Remove mounting nuts (8) and fuel injection pump (6). Installation Procedure Table 2 Required Tools Tool Part Number Part Description Qty B Loctite 593 Silicone Sealer https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 4/5 Illustration 6 g03353182 1. Position fuel injection pump (6) into the housing and the pump drive gear. Install nuts (8). Line up timing marks (9) if the old fuel injection pump is being reused. If new fuel injection pump is being installed, refer to Testing and Adjusting, "Fuel Injection Timing - Check/Adjust" for the correct fuel injection timing procedures. Install lube oil line (7). Tighten nut (8) to a torque of 23 to 28 N m (204 to 248 lb in). Illustration 7 g03349475 2. Make sure that fuel injection pump drive gear (3) is aligned with the idler gear using the reference marks made earlier. Install the washer and nut (4). Tighten nut (4) to a torque of 59 to 69 N m (44 to 51 lb ft) while holding the crankshaft pulley bolt with a socket wrench to prevent the crankshaft from turning. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 5/5 Illustration 8 g03351683 3. Apply Tooling (B) on mating surface of cover (1). Install cover (1) on front housing (2). End By: Install fuel injector lines Copyright 1993 - 2020 Caterpillar Inc. Fri Apr 17 09:06:53 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... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 1/2 Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 301.4C MINI HYD EXCAVATOR LJK Configuration: 301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE) Disassembly and Assembly 3TNV70 and 3TNV76 Engines for Caterpillar Built Machines Media Number -UENR3279-00 Publication Date -01/07/2013 Date Updated -23/07/2013 i05261431 Fuel Injector - Remove and Install SMCS - 1290-010 Removal Procedure Start By: A. Remove fuel injector lines Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. Plugging will prevent fluid loss, and will help to keep contaminants from entering the system. 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, "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. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 2/2 Illustration 1 g03349728 1. Remove nuts (3). Use two wrenches on nut (3) and on fuel injector (1) in order to hold fuel injector (1) from turning. Be careful to keep the return line (4) from twisting. Remove return line hose (2). Remove return line (4) . Illustration 2 g03349752 2. Remove copper washer (5) and fuel injector (6) . Installation Procedure 1. Install fuel injectors (6) with new copper washers (5) in the reverse order of removal. Tighten fuel injectors (6) to a torque of 49 to 59 N m (36 to 44 lb ft) 2. Tighten fuel return line nuts (3) to a torque of 24 to 33 N m (212 to 292 lb in). Copyright 1993 - 2020 Caterpillar Inc. Fri Apr 17 09:07:49 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... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 1/1 Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 301.4C MINI HYD EXCAVATOR LJK Configuration: 301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE) Disassembly and Assembly 3TNV70 and 3TNV76 Engines for Caterpillar Built Machines Media Number -UENR3279-00 Publication Date -01/07/2013 Date Updated -23/07/2013 i05262100 Exhaust Manifold - Remove and Install SMCS - 1059-010 Removal Procedure Note: Refer to Specifications, ""Engine Design"" for non-specified engine torques. Illustration 1 g03350037 1. Remove bolts (1). Remove exhaust manifold (2). Installation Procedure 1. Install exhaust manifold (2) in the reverse order of removal. Copyright 1993 - 2020 Caterpillar Inc. Fri Apr 17 09:08:46 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... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 1/4 Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 301.4C MINI HYD EXCAVATOR LJK Configuration: 301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE) Disassembly and Assembly 3TNV70 and 3TNV76 Engines for Caterpillar Built Machines Media Number -UENR3279-00 Publication Date -01/07/2013 Date Updated -23/07/2013 i05282070 Inlet and Exhaust Valve Springs - Remove and Install SMCS - 1108-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 9U-6195 Valve Spring Compressor 1 Start By: A. Remove the rocker arm and shaft. Note: The following procedure should be adopted in order to remove the valve springs when the cylinder head is installed to the engine. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 2/4 Illustration 1 g03384862 (X) Top Center Note: Ensure that the appropriate piston is at top center before the valve spring is removed. Failure to ensure that the piston is at top center may allow the valve to drop into the cylinder bore. Each cylinder is marked top center on flywheel as shown in above photo. NOTICE Plug the apertures for the push rods in the cylinder head in order to prevent the entry of loose parts into the engine. Illustration 2 g03357084 A typical example of Tooling (A) installation. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 3/4 Illustration 3 g03357140 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. NOTICE Ensure that the valve spring is compressed squarely or damage to the valve stem may occur. 1. Install Tooling (A) into position on the cylinder head in order to compress valve spring (4) for the appropriate piston. 2. Use Tooling (A) in order to compress valve spring (4) and open valve (1) slightly. Note: Do not compress valve spring (4) so that valve spring retainer (3) touches valve stem seal (5) . 3. Rotate crankshaft carefully, until the piston touches valve (1) . https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 4/4 Note: Do not use excessive force to turn the crankshaft. The use of force can result in bent valve stems. 4. Continue to rotate the crankshaft and gradually release the pressure on Tooling (A) until the piston is at the top dead center position. The valve is now held in a position that allows valve spring (4) to be safely removed. NOTICE Do not turn the crankshaft while the valve springs are removed. 5. Apply sufficient pressure to Tooling (A) in order to allow removal of valve keepers (2) . Note: Do not compress valve spring (4) so that valve spring retainer (3) touches valve stem seal (5) . 6. Remove valve keepers (2) . 7. Slowly release the pressure on Tooling (A). Remove valve spring retainer (3), remove valve spring (4) and valve spring seal (5). Installation Procedure 1. Install valve springs (4) in the reverse order of removal. Copyright 1993 - 2020 Caterpillar Inc. Fri Apr 17 09:09:43 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... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 1/4 Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 301.4C MINI HYD EXCAVATOR LJK Configuration: 301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE) Disassembly and Assembly 3TNV70 and 3TNV76 Engines for Caterpillar Built Machines Media Number -UENR3279-00 Publication Date -01/07/2013 Date Updated -23/07/2013 i05389588 Inlet and Exhaust Valves - Remove and Install SMCS - 1105-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 1P-3527 Valve Spring Compressor 1 Start By: A. Remove the cylinder head. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 2/4 Illustration 1 g03356660 1. Remove valve stem caps (1). Using Tooling (A), compress valve springs (4). Remove valve keepers (2). Release Tooling (A). Remove valve spring retainers (3) valve springs (4) and valve seals (5). Remove inlet and exhaust valves (6). Note: Mark the valves so that they can be reinstalled in the same location. Installation Procedure Illustration 2 g03384994 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 3/4 Illustration 3 g03385007 1. Place new valve seals (5) onto valve guides (7). Note: Intake valve seals have white seal springs. Exhaust valve seals have black seal springs. 2. Install valve seals (5) to a height on dimension (8) to 10.9 to 11.2 mm (0.430 to 0.440 inch) from the cylinder head. Illustration 4 g03356749 Note: Install valves in the original location. 1. After thorough inspection and replacement of parts, assemble inlet and exhaust valves (6) into the cylinder head. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 4/4 Illustration 5 g03385072 2. Install valve springs (4) and valve spring retainers (3). Use Tooling (A) to compress valve springs (4). Install valve keepers (2). Release Tooling (A). Install valve stem caps (1) . End By: Install the cylinder head. Copyright 1993 - 2020 Caterpillar Inc. Fri Apr 17 09:10:39 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... 2020/4/17

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301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE)(SEBP5955 - 26) - Doc... 1/2 Shutdown SIS Previous Screen Product: MINI HYD EXCAVATOR Model: 301.4C MINI HYD EXCAVATOR LJK Configuration: 301.4C Mini Hydraulic Excavator LJK00001-UP (MACHINE) Disassembly and Assembly 3TNV70 and 3TNV76 Engines for Caterpillar Built Machines Media Number -UENR3279-00 Publication Date -01/07/2013 Date Updated -23/07/2013 i05284654 Inlet and Exhaust Valve Guides - Remove and Install SMCS - 1104-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 423-9663 Valve Guide Driver 1 Start By: A. Remove the inlet and the exhaust valves. Illustration 1 g03357734 A typical example of the removal process. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2020/4/17

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