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Caterpillar cat 938 g wheel loader (prefix 8rs) service repair manual (8rs00611 and up)

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This document provides instructions for removing and installing a cylinder head on a Caterpillar 3126 engine. The removal process involves detaching several engine components before removing the cylinder head bolts and lifting the cylinder head off. The installation process specifies cleaning the mating surfaces, installing a new cylinder head gasket, positioning the cylinder head, inspecting and lubricating the cylinder head bolts, and tightening the bolts in a specific sequence according to the provided torques.

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Service Repair Manual Models 938G WHEEL LOADER
Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i01930139 Rocker Shaft - Disassemble SMCS - 1102-015 Disassembly Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 6V-0083 Emery Polishing Paper 1 Start By: a. Remove the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: For information on reusability of components of the rocker shaft, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8267, "Rocker Arms and Rocker Arm Shafts for 3114 and 3116 Engines". 1/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Illustration 1 g00629612 1. Remove support bracket (1) from rocker shaft assembly (4). 2. Remove valve rocker arms (2) and unit injector rocker arm (3) from rocker shaft assembly (4). Note: Do not force the rocker arms from the rocker shaft assembly. If necessary, use a piece of Tooling (A) to lightly buff the surface of the shaft to aid in removal . 3. Check the adjustment screws on valve rocker arms (2) and unit injector rocker arm (3) for damage. 4. Inspect rocker shaft assembly (4) for scratches and cracks. Illustration 2 g00630277 5. Inspect bearing (5) on unit injector rocker arm (3). The bore in the rocker arm is 24.808 ± 0.20 mm (0.9767 ± 0.0079 inch). Refer to Specification, "Valve Rocker Arm and Lifters". Replace the bearing, if necessary. 6. Ensure that button (6) on unit injector rocker arm (3) is not damaged. Also ensure that the retaining ring for button (6) is in place. Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:26:36 UTC+0800 2020 2/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i01930194 Rocker Shaft - Assemble SMCS - 1102-016 Assembly Procedure NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: For information on reusability of components of the rocker shaft, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8267, "Rocker Arms and Rocker Arm Shafts for 3114 and 3116 Engines". 1/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Illustration 1 g00630277 1. Install button (6) and the retaining ring, if necessary. 2. Place clean engine oil on a new bearing (5) prior to installation. 3. Ensure that the oil hole in bearing (5) is aligned with the oil hole in the rocker arm. Hone the bearing, if necessary. Refer to the Specifications Module for the correct dimensions. Illustration 2 g00629612 4. Lubricate rocker shaft assembly (4) with clean engine oil. 5. Install valve rocker arms (2) and unit injector rocker arm (3) on rocker shaft assembly (4). 6. Install support bracket (1) on rocker shaft assembly (4). End By: a. Install the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Install". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:27:32 UTC+0800 2020 2/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i02736495 Rocker Shaft and Pushrod - Install SMCS - 1102-012; 1208-012 Installation Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 146-2597 Pushrod Holder 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: For information on reusability of components of the rocker shaft, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8267, "Rocker Arms and Rocker Arm Shafts for 3114 and 3116 Engines". 1. Install the pushrods in the engine. The base of the pushrod should be in the seat of the pushrod lifter. 2. Install Tooling (A). 1/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Illustration 1 g00629575 3. Position rocker shaft assembly (2) in the engine. Line up the pushrods with the rocker arms. 4. Install bolts (1) in rocker shaft assembly (2). Tighten the bolts to a torque of 28 ± 7 N·m (21 ± 5 lb ft). 5. Remove Tooling (A) from the pushrods. 6. Adjust the valve lash on all of the adjustment screws. Refer to Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust". 7. Repeat the procedure for the remaining rocker shaft assemblies. End By: a. Install the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:28:28 UTC+0800 2020 2/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i01935828 Cylinder Head - Remove SMCS - 1100-011 Removal Procedure Start By: a. Remove the fuel filter base. Refer to Disassembly and Assembly, "Fuel Filter Base - Remove and Install". b. Remove the governor. Refer to Disassembly and Assembly, "Governor - Remove". c. Remove the fuel control linkage. Refer to Disassembly and Assembly, "Fuel Injection Control Linkage - Remove". d. Remove the unit injectors. Refer to Disassembly and Assembly, "Unit Injector - Remove". e. Remove the water temperature regulator housing. Refer to Disassembly and Assembly, "Water Temperature Regulator Housing - Remove and Install". f. Remove the inlet manifold. Refer to Disassembly and Assembly, "Inlet Manifold - Remove". g. Remove the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold - Remove and Install". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 1/3938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
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. Note: For information on the reusability of the cylinder head, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8218, "Specifications for Cylinder Head Assemblies 3114, 3116, and 3126 Engines" and Guideline For Reusable Parts And Salvage Operations, SEBF8162, "Procedure to Measure and Salvage Cylinder Head Assemblies and Related Components". Illustration 1 g01007597 Typical example 1. Attach a suitable lifting device to the cylinder head. 2/3938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Illustration 2 g00654709 2. Remove bolts (1) and (2) that hold the cylinder head to the cylinder block. Carefully remove the cylinder head from the cylinder block. The cylinder head for the 3116 engine weighs approximately 85 kg (187 lb). Illustration 3 g00611342 3. Remove cylinder head gasket (3). Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:29:24 UTC+0800 2020 3/3938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i04147334 Cylinder Head - Install SMCS - 1100-012 Installation Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 6V-4876 Lubricant 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: For information on the reusability of the cylinder head, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8218, "Specifications for Cylinder Head Assemblies 3114, 3116, and 3126 Engines" and Guideline For Reusable Parts And Salvage Operations, SEBF8162, "Procedure to Measure and Salvage Cylinder Head Assemblies and Related Components". 1. Thoroughly clean the mating surfaces of the cylinder head and the cylinder block. 1/5938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Illustration 1 g00611342 Typical example 2. Install a new cylinder head gasket (3) . Note: For information on the cylinder head gasket for 3116 engines, refer to Special Instruction, SEHS9395, "3116 Cylinder Head Gasket Usage". Illustration 2 g01007597 Typical example Note: To avoid damage to the cylinder head gasket, use guide bolts of an appropriate size to install the cylinder head. 3. Attach a suitable lifting device to the cylinder head. Position the cylinder head assembly onto the dowels in the cylinder block. Lower the cylinder head onto the cylinder block. 2/5938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Illustration 3 g00654709 4. Inspect the condition of cylinder head bolts (1) and (2) . For information on the reusability of the bolts, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8301, "Inspection and Reuse of Critical Fasteners Used in All Engines". Replace cylinder head bolts (1) and (2) , if necessary. 5. Lubricate cylinder head bolts (1) and (2) and both sides of the washers with Tooling (A) . Install cylinder head bolts (1) and (2) . Follow Step 6 for the correct tightening procedure. Illustration 4 g00641677 3114 Cylinder head 3/5938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Illustration 5 g00611358 6. Tighten the cylinder head bolts according to the following procedure: 7. Tighten bolts (1) through bolt (14) in a numerical sequence to a torque of 300 ± 15 N·m (221 ± 11 lb ft). 8. Loosen bolts (1) through bolt (14) to a torque of 0 N·m. 9. Tighten bolts (1) through bolt (14) again in a numerical sequence to a torque of 130 ± 15 N·m (96 ± 11 lb ft). 10. Retighten bolts (1) through bolt (14) again in a numerical sequence to a torque of 130 ± 15 N·m (96 ± 11 lb ft). 11. Turn bolts (1) through bolt (14) by numerical sequence an additional 90° (1/4 turn). 12. Tighten bolt (15) through bolt (20) in a numerical sequence to a torque of 55 ± 7 N·m (41 ± 5 lb ft). End By: a. Install the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold - Remove and Install". b. Install the inlet manifold. Refer to Disassembly and Assembly, "Inlet Manifold - Install". c. Install the water temperature regulator housing. Refer to Disassembly and Assembly, "Water Temperature Regulator Housing- Remove and Install". d. Install the unit injectors. Refer to Disassembly and Assembly, "Unit Injector - Install". e. Install the fuel control linkage. Refer to Disassembly and Assembly, "Fuel Injection Control Linkage - Install". f. Install the governor. Refer to Disassembly and Assembly, "Governor - Install". g. Install the fuel filter base. Refer to Disassembly and Assembly, "Fuel Filter Base - Remove and Install". 4/5938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:30:19 UTC+0800 2020 5/5938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i01930413 Lifter Group - Remove and Install SMCS - 1209-010 Removal Procedure Start By: a. Remove the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 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. 1/4938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Dispose of all fluids according to local regulations and mandates. Note: For information on reusability of components of the lifter group, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8264, "Camshaft Roller Followers Used in 3114 and 3116 Engines" and Guideline For Reusable Parts And Salvage Operations, SEBF8067, "Slipper Followers and Camshaft Roller Followers". Illustration 1 g00747310 1. Remove bolts (1) from cover (2). 2. Carefully remove cover (2) and the gasket. Note: It may be necessary to remove the governor in order to remove the cover at the front of the engine. Illustration 2 g00629677 3. Remove bolts (4), lifter shaft (5), and lifters (3) from cover (2). Installation Procedure 2/4938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
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NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: For information on reusability of components of the lifter group, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8264, "Camshaft Roller Followers Used in 3114 and 3116 Engines" and Guideline For Reusable Parts And Salvage Operations, SEBF8067, "Slipper Followers and Camshaft Roller Followers". Illustration 3 g00629677 1. Position lifters (3) and lifter shaft (5) on cover (2). Install bolts (4). Illustration 4 g00747310 2. Position the gasket and cover (2) on the engine. 3. Install bolts (1) in cover (2). End By: 3/4938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
a. Install the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Install". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:31:15 UTC+0800 2020 4/4938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i01930426 Camshaft - Remove SMCS - 1210-011 Removal Procedure Start By: a. Remove the governor. Refer to Disassembly and Assembly, "Governor - Remove". b. Remove the side covers. Refer to Disassembly and Assembly, "Lifter Group - Remove and Install". c. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 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. 1/3938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

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Caterpillar cat 938 g wheel loader (prefix 8rs) service repair manual (8rs00611 and up)

  • 2. Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i01930139 Rocker Shaft - Disassemble SMCS - 1102-015 Disassembly Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 6V-0083 Emery Polishing Paper 1 Start By: a. Remove the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: For information on reusability of components of the rocker shaft, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8267, "Rocker Arms and Rocker Arm Shafts for 3114 and 3116 Engines". 1/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 3. Illustration 1 g00629612 1. Remove support bracket (1) from rocker shaft assembly (4). 2. Remove valve rocker arms (2) and unit injector rocker arm (3) from rocker shaft assembly (4). Note: Do not force the rocker arms from the rocker shaft assembly. If necessary, use a piece of Tooling (A) to lightly buff the surface of the shaft to aid in removal . 3. Check the adjustment screws on valve rocker arms (2) and unit injector rocker arm (3) for damage. 4. Inspect rocker shaft assembly (4) for scratches and cracks. Illustration 2 g00630277 5. Inspect bearing (5) on unit injector rocker arm (3). The bore in the rocker arm is 24.808 ± 0.20 mm (0.9767 ± 0.0079 inch). Refer to Specification, "Valve Rocker Arm and Lifters". Replace the bearing, if necessary. 6. Ensure that button (6) on unit injector rocker arm (3) is not damaged. Also ensure that the retaining ring for button (6) is in place. Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:26:36 UTC+0800 2020 2/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 4. Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i01930194 Rocker Shaft - Assemble SMCS - 1102-016 Assembly Procedure NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: For information on reusability of components of the rocker shaft, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8267, "Rocker Arms and Rocker Arm Shafts for 3114 and 3116 Engines". 1/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 5. Illustration 1 g00630277 1. Install button (6) and the retaining ring, if necessary. 2. Place clean engine oil on a new bearing (5) prior to installation. 3. Ensure that the oil hole in bearing (5) is aligned with the oil hole in the rocker arm. Hone the bearing, if necessary. Refer to the Specifications Module for the correct dimensions. Illustration 2 g00629612 4. Lubricate rocker shaft assembly (4) with clean engine oil. 5. Install valve rocker arms (2) and unit injector rocker arm (3) on rocker shaft assembly (4). 6. Install support bracket (1) on rocker shaft assembly (4). End By: a. Install the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Install". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:27:32 UTC+0800 2020 2/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 6. Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i02736495 Rocker Shaft and Pushrod - Install SMCS - 1102-012; 1208-012 Installation Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 146-2597 Pushrod Holder 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: For information on reusability of components of the rocker shaft, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8267, "Rocker Arms and Rocker Arm Shafts for 3114 and 3116 Engines". 1. Install the pushrods in the engine. The base of the pushrod should be in the seat of the pushrod lifter. 2. Install Tooling (A). 1/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 7. Illustration 1 g00629575 3. Position rocker shaft assembly (2) in the engine. Line up the pushrods with the rocker arms. 4. Install bolts (1) in rocker shaft assembly (2). Tighten the bolts to a torque of 28 ± 7 N·m (21 ± 5 lb ft). 5. Remove Tooling (A) from the pushrods. 6. Adjust the valve lash on all of the adjustment screws. Refer to Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust". 7. Repeat the procedure for the remaining rocker shaft assemblies. End By: a. Install the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:28:28 UTC+0800 2020 2/2938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 8. Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i01935828 Cylinder Head - Remove SMCS - 1100-011 Removal Procedure Start By: a. Remove the fuel filter base. Refer to Disassembly and Assembly, "Fuel Filter Base - Remove and Install". b. Remove the governor. Refer to Disassembly and Assembly, "Governor - Remove". c. Remove the fuel control linkage. Refer to Disassembly and Assembly, "Fuel Injection Control Linkage - Remove". d. Remove the unit injectors. Refer to Disassembly and Assembly, "Unit Injector - Remove". e. Remove the water temperature regulator housing. Refer to Disassembly and Assembly, "Water Temperature Regulator Housing - Remove and Install". f. Remove the inlet manifold. Refer to Disassembly and Assembly, "Inlet Manifold - Remove". g. Remove the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold - Remove and Install". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 1/3938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 9. 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. Note: For information on the reusability of the cylinder head, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8218, "Specifications for Cylinder Head Assemblies 3114, 3116, and 3126 Engines" and Guideline For Reusable Parts And Salvage Operations, SEBF8162, "Procedure to Measure and Salvage Cylinder Head Assemblies and Related Components". Illustration 1 g01007597 Typical example 1. Attach a suitable lifting device to the cylinder head. 2/3938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 10. Illustration 2 g00654709 2. Remove bolts (1) and (2) that hold the cylinder head to the cylinder block. Carefully remove the cylinder head from the cylinder block. The cylinder head for the 3116 engine weighs approximately 85 kg (187 lb). Illustration 3 g00611342 3. Remove cylinder head gasket (3). Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:29:24 UTC+0800 2020 3/3938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 11. Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i04147334 Cylinder Head - Install SMCS - 1100-012 Installation Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 6V-4876 Lubricant 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: For information on the reusability of the cylinder head, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8218, "Specifications for Cylinder Head Assemblies 3114, 3116, and 3126 Engines" and Guideline For Reusable Parts And Salvage Operations, SEBF8162, "Procedure to Measure and Salvage Cylinder Head Assemblies and Related Components". 1. Thoroughly clean the mating surfaces of the cylinder head and the cylinder block. 1/5938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 12. Illustration 1 g00611342 Typical example 2. Install a new cylinder head gasket (3) . Note: For information on the cylinder head gasket for 3116 engines, refer to Special Instruction, SEHS9395, "3116 Cylinder Head Gasket Usage". Illustration 2 g01007597 Typical example Note: To avoid damage to the cylinder head gasket, use guide bolts of an appropriate size to install the cylinder head. 3. Attach a suitable lifting device to the cylinder head. Position the cylinder head assembly onto the dowels in the cylinder block. Lower the cylinder head onto the cylinder block. 2/5938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 13. Illustration 3 g00654709 4. Inspect the condition of cylinder head bolts (1) and (2) . For information on the reusability of the bolts, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8301, "Inspection and Reuse of Critical Fasteners Used in All Engines". Replace cylinder head bolts (1) and (2) , if necessary. 5. Lubricate cylinder head bolts (1) and (2) and both sides of the washers with Tooling (A) . Install cylinder head bolts (1) and (2) . Follow Step 6 for the correct tightening procedure. Illustration 4 g00641677 3114 Cylinder head 3/5938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 14. Illustration 5 g00611358 6. Tighten the cylinder head bolts according to the following procedure: 7. Tighten bolts (1) through bolt (14) in a numerical sequence to a torque of 300 ± 15 N·m (221 ± 11 lb ft). 8. Loosen bolts (1) through bolt (14) to a torque of 0 N·m. 9. Tighten bolts (1) through bolt (14) again in a numerical sequence to a torque of 130 ± 15 N·m (96 ± 11 lb ft). 10. Retighten bolts (1) through bolt (14) again in a numerical sequence to a torque of 130 ± 15 N·m (96 ± 11 lb ft). 11. Turn bolts (1) through bolt (14) by numerical sequence an additional 90° (1/4 turn). 12. Tighten bolt (15) through bolt (20) in a numerical sequence to a torque of 55 ± 7 N·m (41 ± 5 lb ft). End By: a. Install the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold - Remove and Install". b. Install the inlet manifold. Refer to Disassembly and Assembly, "Inlet Manifold - Install". c. Install the water temperature regulator housing. Refer to Disassembly and Assembly, "Water Temperature Regulator Housing- Remove and Install". d. Install the unit injectors. Refer to Disassembly and Assembly, "Unit Injector - Install". e. Install the fuel control linkage. Refer to Disassembly and Assembly, "Fuel Injection Control Linkage - Install". f. Install the governor. Refer to Disassembly and Assembly, "Governor - Install". g. Install the fuel filter base. Refer to Disassembly and Assembly, "Fuel Filter Base - Remove and Install". 4/5938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 15. Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:30:19 UTC+0800 2020 5/5938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 16. Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i01930413 Lifter Group - Remove and Install SMCS - 1209-010 Removal Procedure Start By: a. Remove the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 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. 1/4938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 17. Dispose of all fluids according to local regulations and mandates. Note: For information on reusability of components of the lifter group, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8264, "Camshaft Roller Followers Used in 3114 and 3116 Engines" and Guideline For Reusable Parts And Salvage Operations, SEBF8067, "Slipper Followers and Camshaft Roller Followers". Illustration 1 g00747310 1. Remove bolts (1) from cover (2). 2. Carefully remove cover (2) and the gasket. Note: It may be necessary to remove the governor in order to remove the cover at the front of the engine. Illustration 2 g00629677 3. Remove bolts (4), lifter shaft (5), and lifters (3) from cover (2). Installation Procedure 2/4938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 18. 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.
  • 19. NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: For information on reusability of components of the lifter group, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8264, "Camshaft Roller Followers Used in 3114 and 3116 Engines" and Guideline For Reusable Parts And Salvage Operations, SEBF8067, "Slipper Followers and Camshaft Roller Followers". Illustration 3 g00629677 1. Position lifters (3) and lifter shaft (5) on cover (2). Install bolts (4). Illustration 4 g00747310 2. Position the gasket and cover (2) on the engine. 3. Install bolts (1) in cover (2). End By: 3/4938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 20. a. Install the rocker shaft and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Install". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Wed Mar 18 13:31:15 UTC+0800 2020 4/4938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
  • 21. Shutdown SIS Previous Screen Product: WHEEL LOADER Model: 938G WHEEL LOADER 8RS Configuration: 938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE Disassembly and Assembly 446 and 446B Backhoe Loaders, Lexion 450 Combine, 3114 and 3116 Engines, IT18F Integrated Toolcarrier, D6M Track-Type Tractor and 928F, 950F and 950G Wheel Loaders Media Number -SENR3611-18 Publication Date -01/05/2009 Date Updated -27/05/2009 i01930426 Camshaft - Remove SMCS - 1210-011 Removal Procedure Start By: a. Remove the governor. Refer to Disassembly and Assembly, "Governor - Remove". b. Remove the side covers. Refer to Disassembly and Assembly, "Lifter Group - Remove and Install". c. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 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. 1/3938G WHEEL LOADER 8RS00611-UP (MACHINE) POWERED BY 3126 ENGINE... 2020/3/18https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...