Caterpillar Cat 325C and 325C L Excavator (Prefix JLC) Service Repair Manual Instant Download

Service Repair Manual Models 325C and325C L Excavator

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 1/2 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C EXCAVATOR JLC Configuration: 325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06 Publication Date -01/08/2018 Date Updated -17/08/2018 i01931442 Crankshaft Wear Sleeve (Rear) - Remove - If Equipped SMCS - 1161-011-ZV Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 4C-4869 Distorter Ring 1 B 5P-7312 Seal Distorter 1 Start By: a. Remove the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - 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=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 2/2 Illustration 1 g00614029 Note: Wear sleeves are not installed at the factory. The wear sleeve is included with the replacement rear seal. 1. Install Tooling (A) in the bore of the crankshaft rear sleeve. 2. Install Tooling (B) between Tooling (A) and the crankshaft wear sleeve. Turn Tooling (B) until the edge of Tooling (B) makes a crease in the crankshaft wear sleeve. Make a crease in the crankshaft wear sleeve at two other locations around the crankshaft wear sleeve until the crankshaft wear sleeve is loose. 3. Remove Tooling (B), Tooling (A), and the crankshaft wear sleeve from the end of the crankshaft. Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 9 23:41:06 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

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325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 1/3 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C EXCAVATOR JLC Configuration: 325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06 Publication Date -01/08/2018 Date Updated -17/08/2018 i01929732 Crankshaft Wear Sleeve (Rear) - Install SMCS - 1161-012-ZV Installation Procedure Table 1 Required Tools Tool Part Number Part Description Qty C(1) 132-8772 Seal Locator 1 D(1) 1U-7596 Bolt 2 E(1) 1U-7597 Sleeve Ring 1 F(1) 1U-7594 Seal Installer 1 G(1) 9S-8858 Nut 1 (1)Part of the 1U-7598 Seal Installer NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 1. Ensure that the rear of the crankshaft is thoroughly clean and dry prior to the installation of the crankshaft rear seal. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 2/3 Illustration 1 g01003875 2. Fasten Tooling (C) to the rear of the crankshaft with Tooling (D). Hand tighten Tooling (D). 3. Position the crankshaft rear seal and crankshaft rear sleeve (1) on Tooling (C). Position Tooling (E) on Tooling (C). Illustration 2 g01003866 Typical example 4. Position Tooling (F) over Tooling (C) and Tooling (E). Install Tooling (G). Tighten Tooling (G) in order to install the crankshaft rear seal and the crankshaft wear sleeve. 5. Remove Tooling (G), Tooling (F), and Tooling (E). Turn over Tooling (E). Install Tooling (E), Tooling (F), and Tooling (G). Tighten Tooling (G) in order to complete the installation of the crankshaft rear seal and the crankshaft wear sleeve. 6. Remove Tooling (G) and Tooling (F). Check Tooling (E) and Tooling (C). The faces of Tooling (E) and Tooling (C) will be flush if the crankshaft rear seal and the crankshaft wear sleeve are properly installed. Refer to the Specifications module for more information. 7. Remove Tooling (E), Tool (E), and Tooling (C). End By: a. Install the flywheel. Refer to Disassembly and Assembly, "Flywheel - Install". https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 1/3 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C EXCAVATOR JLC Configuration: 325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06 Publication Date -01/08/2018 Date Updated -17/08/2018 i02374834 Crankshaft - Install SMCS - 1202-012 Installation Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 8T-5096 Dial Indicator Group 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. NOTICE Ensure that the crankshaft main bearing tabs engage with the grooves in the block and the crankshaft main bearing cap. Note: The number six main bearing is the thrust bearing. 1. Clean the bearing surfaces in the cylinder block for the main bearings. Apply clean engine oil on the upper main bearing. Do not put engine oil on the back side of the bearing https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 2/3 surfaces. Install the upper main bearing in the cylinder block. Ensure that the tab on the back side of the bearing engages with the groove in the cylinder block. Illustration 1 g01184978 2. Put clean engine oil on the journals of the crankshaft bearing. Attach a suitable lifting device to crankshaft (1). The weight of crankshaft (1) is approximately 60 kg (132 lb). Carefully install the crankshaft in the cylinder block. 3. Clean the bearing surface of the main bearing caps. Install the lower main bearing in the crankshaft main bearing caps. Ensure that the tab on the back side of the bearing engages with the groove in the main bearing cap. Apply clean engine oil on the lower main bearing. Do not put engine oil on the back side of the bearing surfaces. 4. Install crankshaft main bearing caps with the part numbers toward the right hand side of the cylinder block. The numbers should start at the front of the engine. Place clean engine oil or Molylube on the bolt threads and the washers. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 3/3 Illustration 2 g01028042 5. Install the bolts for main bearing caps (2). Tighten the bolts to a torque of 54 7 N m (40 5 lb ft). 6. Turn the bolts for an additional 90 5 degrees (1/4 turn). 7. Install connecting rod caps (3). Refer to Disassembly and Assembly, "Pistons and Connecting Rods - Install". 8. Check the end play of crankshaft (1) with Tooling (A). The end play must be 0.07 to 0.32 mm (0.003 to 0.013 inch). End By: a. Install the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Install". b. Install the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Install". c. Install the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing - Remove and Install". Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 9 23:42:58 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 1/3 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C EXCAVATOR JLC Configuration: 325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06 Publication Date -01/08/2018 Date Updated -17/08/2018 i01984006 Crankshaft Gear - Remove and Install SMCS - 1204-010-GE Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty 8B-7551 Bearing Puller 1 8B-7549 Puller Leg 2 3H-0465 Push-Puller Plate 4 A 6B-6682 Full Nut 2 8B-7560 Step Plate 1 1P-0820 Hydraulic Puller 1 9U-6600 Hand Hydraulic Pump 1 Start By: a. Remove the crankshaft. Refer to Disassembly and Assembly, "Crankshaft - 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=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 2/3 Illustration 1 g00988783 1. Use Tooling (A) in order to remove crankshaft gear (3) from crankshaft (1). 2. Remove woodruff key (2). Installation Procedure 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=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 3/3 Illustration 2 g00988783 1. Position woodruff key (2) in crankshaft (1). Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin. 2. Raise the temperature of crankshaft gear (3). Install crankshaft gear (3) on crankshaft (1). End By: a. Install the crankshaft. Refer to Disassembly and Assembly, "Crankshaft - Install". Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 9 23:43:54 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 1/3 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C EXCAVATOR JLC Configuration: 325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06 Publication Date -01/08/2018 Date Updated -17/08/2018 i05977048 Bearing Clearance - Check SMCS - 1203-535; 1219-535 Measurement Procedure Table 1 Required Tools Tool Part Number Part Description Qty Plastic Gauge (Green) 0.025 to 0.076 mm (0.001 to 0.003 inch) 198-9142 1 Plastic Gauge (Red) 0.051 to 0.152 mm (0.002 to 0.006 inch) 198-9143 1 A Plastic Gauge (Blue) 0.102 to 0.229 mm (0.004 to 0.009 inch) 198-9144 1 Plastic Gauge (Yellow) 0.230 to 0.510 mm (0.009 to 0.020 inch) 198-9145 1 Note: Plastic gauge may not be necessary when the engine is in the chassis. 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=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 2/3 Note: Cat does not recommend the checking of the actual bearing clearances particularly on small engines. This is because of the possibility of obtaining inaccurate results and the possibility of damaging the bearing or the journal surfaces. Each Cat engine bearing is quality checked for specific wall thickness. Note: The measurements should be within specifications and the correct bearings should be used. If the crankshaft journals and the bores for the block and the rods were measured during disassembly, no further checks are necessary. However, if the technician still wants to measure the bearing clearances, Tooling (A) is an acceptable method. Tooling (A) is less accurate on journals with small diameters if clearances are less than 0.10 mm (0.004 inch). NOTICE Lead wire, shim stock or a dial bore gauge can damage the bearing surfaces. The technician must be very careful to use Tooling (A) correctly. The following points must be remembered: Ensure that the backs of the bearings and the bores are clean and dry. Ensure that the bearing locking tabs are properly seated in the tab grooves. The crankshaft must be free of oil at the contact points of Tooling (A). 1. Put a piece of Tooling (A) on the crown of the bearing that is in the cap. Note: Do not allow Tooling (A) to extend over the edge of the bearing. 2. Use the correct torque-turn specifications in order to install the bearing cap. Do not use an impact wrench. Be careful not to dislodge the bearing when the cap is installed. Note: Do not turn the crankshaft when Tooling (A) is installed. 3. Carefully remove the cap, but do not remove Tooling (A). Measure the width of Tooling (A) while Tooling (A) is in the bearing cap or on the crankshaft journal. Refer to Illustration 1. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 3/3 Illustration 1 g01152855 Typical Example 4. Remove all of Tooling (A) before you install the bearing cap. Note: When Tooling (A) is used, the readings can sometimes be unclear. For example, all parts of Tooling (A) are not the same width. Measure the major width in order to ensure that the parts are within the specification range. Refer to Specifications Manual, "Connecting Rod Bearing Journal" and Specifications Manual, "Main Bearing Journal" for the correct clearances. Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 9 23:44:49 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 1/1 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C EXCAVATOR JLC Configuration: 325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06 Publication Date -01/08/2018 Date Updated -17/08/2018 i01984226 Idler Pulley - Remove and Install SMCS - 1358-010 Illustration 1 g01028295 Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 9 23:45:45 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 1/2 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C EXCAVATOR JLC Configuration: 325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06 Publication Date -01/08/2018 Date Updated -17/08/2018 i01930316 Belt Tensioner - Remove and Install SMCS - 1358-010 Removal Procedure Illustration 1 g01011962 1. Use a breaker bar to release the tension on belt tensioner (1). Remove the drive belt. 2. Remove bolt (2) and belt tensioner (1). Installation Procedure https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 2/2 Illustration 2 g01011962 1. Position belt tensioner (1) on the cylinder block. Install bolt (2). 2. Install the drive belt. Use a breaker bar to release tension on belt tensioner (1). Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 9 23:46:41 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 1/2 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C EXCAVATOR JLC Configuration: 325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06 Publication Date -01/08/2018 Date Updated -17/08/2018 i01379733 Electronic Control Module - Remove and Install SMCS - 1901-010 Removal Procedure 1. Remove the fuel lines from the fuel cooled ECM (if equipped). Illustration 1 g00609591 Typical example 2. Loosen screw (1) until wiring harness (4) can be disconnected. Disconnect wiring harness (4) from electronic control module (2). 3. Remove four bolts (3). Remove the electronic control module from the engine. Installation Procedure https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 2/2 Illustration 2 g00609591 Typical example 1. Position electronic control module (2) on the engine and install four bolts (3). 2. Connect wiring harness (4) to electronic control module (2). Tighten screw (1) to a torque of 6 1 N m (53 9 lb in). 3. Reconnect the fuel lines to the fuel cooled ECM (if equipped). Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 9 23:47:37 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 1/3 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C EXCAVATOR JLC Configuration: 325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06 Publication Date -01/08/2018 Date Updated -17/08/2018 i01378281 Alternator - Remove and Install SMCS - 1405-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 1U-7117 Breaker Bar 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 1. Use Tool (A) to release the tension on the belt tensioner. 2. Remove the drive belt from the alternator drive pulley. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 2/3 Illustration 1 g00728265 3. Place an index mark on all electrical wires that are connected to alternator (1). Disconnect all electrical wires from the alternator. 4. Remove two bolts (2). 5. Remove alternator (1) from the mounting bracket. Installation Procedure Table 2 Required Tools Tool Part Number Part Description Qty A 1U-7117 Breaker Bar 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=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 3/3 Illustration 2 g00728265 1. Position alternator (1) on the mounting bracket. Install two bolts (2). 2. Install the drive belt on the alternator drive pulley. 3. Use Tool (A) on the belt tensioner in order to tighten the drive belt. 4. Connect all electrical wires to the alternator. Use the index marks to correctly connect the wires. Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 9 23:48:32 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

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325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 1/2 Shutdown SIS Previous Screen Product: EXCAVATOR Model: 325C EXCAVATOR JLC Configuration: 325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06 Publication Date -01/08/2018 Date Updated -17/08/2018 i06798491 Electric Starting Motor - Remove and Install SMCS - 1453-010 Removal Procedure Personal injury can result from failure to disconnect the battery. First, disconnect the negative battery cable. Then, disconnect the positive battery cable. A positive power lead can cause sparks if the battery is not disconnected. Sparks can possibly result in battery explosion or fire. Illustration 1 g06119357 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine... 2/2 1. Disconnect cable strap (1). 2. Place an index mark on all of the harness assemblies. Disconnect the harness assemblies from electric starting motor (2). 3. Fasten a suitable lifting device to electric starting motor (4). The weight of electric starting motor (4) is approximately 35 kg (77 lb). 4. Remove bolts (3). 5. Remove electric starting motor (4) and the gasket from the flywheel housing. Installation Procedure 1. Install electric starting motor (4) in reverse order of removal. Copyright 1993 - 2020 Caterpillar Inc. Thu Jul 9 23:49:28 UTC+0800 2020 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 2020/7/9

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