Caterpillar Cat 320C and 320C L 320CL Excavator (Prefix PAB) Service Repair Manual Instant Download

Service Repair Manual Model 320C and 320CL320CLExcavator

w 1/4(W) Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320C EXCAVATOR PAB Configuration: 320C & 320C L Excavators PAB00001-UP (MACHINE) POWERED BY 3066 Engine Disassembly and Assembly 320C Excavator Machine Systems Media Number -RENR3826-16 Publication Date -01/11/2014 Date Updated -30/03/2016 i02044033 Track - Connect SMCS - 4170-077 Connection Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 5P-6214 Track Block Assembly 1 B 1U-7630 Impact Socket 1 3S-6224 Electric Hydraulic Pump (115 Volt)(1) 1 8T-0820 Hydraulic Pressure Gauge 1 3B-7722 Pipe Bushing 2 1P-2376 Quick Connect Coupler 2 C 1P-2377 Dust Plug 2 6D-7726 Hose Assembly 2 5P-2379 Track Press Tool Gp 1 8S-7172 Double Acting Cylinder 8S-9903 Track Press Rollover Gp D 1P-3545 Coupler for Track Chain 1 E 1P-3533 Bar 1 F 5P-0960 Molybdenum Grease 1 G 5F-9447 Pilot Pin 1 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 2/4(W) (1)8S-8033 Electric Hydraulic Pump (230 Volt) is available. Illustration 1 g01036073 1. Install Tooling (D) in the track link and on the sprocket, as shown. 2. Start the machine. Move the sprocket forward until the track assembly is pulled up on the sprocket. Move the sprocket forward until the end of the track assembly is past a vertical line through the center of the sprocket. Remove Tooling (D). Illustration 2 g01036161 3. Install Tooling (E) between the first bushing in the track link and the track shoe, as shown. 4. Move the sprocket forward. Use Tooling (E) to guide the track assembly over the carrier rollers and the front idler. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

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w 3/4(W) Illustration 3 g01036164 Typical example 5. Use a suitable lifting device to raise the front of the track assembly. Install Tooling (A) in position under the track shoe, as shown. 6. Apply Tooling (F) on two track bushings. Install the bushings in the track links. The grease will hold the bushings in place. 7. Apply Tooling (F) in the master pin bores in the track assembly and on the master pin. 8. Connect the ends of the track assembly. Make sure that the pin bore in each end of the track assembly is aligned with each other. Illustration 4 g01036167 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 4/4(W) Illustration 5 g00722410 9. Install Tooling (G) in the track assembly. Make sure that Tooling (G) is centered in the track links. Use Tooling (G) and a hammer to install master pin (2). Note: If you can not install master pin (2) with the hammer, use Tooling (C) to install master pin (2). Refer to Illustration 5. 10. Install the cotter pin in the master pin. Remove Tooling (A) from the rear of the track assembly. Note: Refer to Special Instruction, "Track - Assembly" for further information regarding Tooling (C). 11. If the track shoe on each side of the master pin was removed, reinstall the track shoes. Use Tooling (B) to reinstall the track shoe mounting bolts. 12. Tighten the tension of the track. Refer to Operation and Maintenance Manual, "Track Adjustment - Adjust" for the correct procedure. Copyright 1993 - 2019 Caterpillar Inc. Tue Oct 1 10:03:19 UTC+0800 2019 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 1/3(W) Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320C EXCAVATOR PAB Configuration: 320C & 320C L Excavators PAB00001-UP (MACHINE) POWERED BY 3066 Engine Disassembly and Assembly 320C Excavator Machine Systems Media Number -RENR3826-16 Publication Date -01/11/2014 Date Updated -30/03/2016 i01953048 Front Idler, Recoil Spring and Hydraulic Track Adjuster - Remove SMCS - 4157-011; 4158-011; 4159-011 Removal Procedure Start By: a. Separate the track assemblies. Refer to Disassembly and Assembly, "Track - Separate". Illustration 1 g00708892 The spring of the recoil spring assembly is compressed under several tons of force. Do not attempt to compress or release the tension of the spring with the nut on the end of the retaining rod. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 2/3(W) Damaged threads on the retaining rod or nut can cause the assembly to come apart with force, resulting in injury or death. 1. Use a pry bar and move the front idler (1), the recoil spring, and the hydraulic track adjuster partially out of the track roller frame. Attach a suitable lifting device to front idler (1), as shown. Illustration 2 g00708894 2. Once front idler (1), the recoil spring, and the hydraulic track adjuster (2) is partially out of the track frame reposition the suitable lifting device in order to support the recoil spring, the hydraulic track adjuster, and the front idler. 3. Slide the front idler, the recoil spring, and the hydraulic track adjuster (2) out of the track roller frame as one unit. The weight of the unit is approximately 204 kg (450 lb). 4. Leave the suitable lifting device attached and turn the front idler, the recoil spring, and the hydraulic track adjuster around 180 degrees. Illustration 3 g00708895 5. Install the front idler partially into the track frame. The front idler, the recoil spring, and the hydraulic track adjuster will be supported by the track frame. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 3/3(W) 6. Reposition the suitable lifting device in order to support the recoil spring and the hydraulic track adjuster (2). 7. Remove bolts (3) that hold the front idler to the recoil spring and the hydraulic track adjuster together. 8. Separate recoil spring and the hydraulic track adjuster (2) from the front idler. The front idler will be supported by the track frame. 9. The weight of the recoil spring and the hydraulic track adjuster as a unit is approximately 95 kg (210 lb). Illustration 4 g00708896 10. Attach a suitable lifting device to the front idler (1), as shown. 11. Remove the front idler from the track roller frame. The weight of the front idler is approximately 109 kg (240 lb). Reference: Refer to Undercarriage Reconditioning Bulletin, SEBF8495, "Hydraulic Excavator Idler Disassemble and Assembly Procedures" for the disassembly and assembly procedures for the idler. Copyright 1993 - 2019 Caterpillar Inc. Tue Oct 1 10:04:15 UTC+0800 2019 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 1/6(W) Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320C EXCAVATOR PAB Configuration: 320C & 320C L Excavators PAB00001-UP (MACHINE) POWERED BY 3066 Engine Disassembly and Assembly 320C Excavator Machine Systems Media Number -RENR3826-16 Publication Date -01/11/2014 Date Updated -30/03/2016 i04294430 Recoil Spring - Disassemble SMCS - 4158-015 Disassembly Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 4C-9540 Recoil Spring Bench 1 146-2457 Hydraulic Power Supply Gp 1 B 223-3506 Hydraulic Cylinder and Lines Gp 1 C 8S-9971 Adapter 1 D 4C-4467 65 mm Socket 1 Start By: a. Remove the front idler and the recoil spring assembly. Refer to Disassembly and Assembly, "Front Idler, Recoil Spring and Hydraulic Track Adjuster - Remove". The spring of the recoil spring assembly is compressed under several tons of force. Do not attempt to compress or release the tension of the spring with the nut on the end of the retaining rod. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 2/6(W) Damaged threads on the retaining rod or nut can cause the assembly to come apart with force, resulting in injury or death. 1. Prior to disassembling the recoil spring assembly, make sure that Tooling (A) is on a level surface. 2. Thoroughly clean the outside surface of the recoil spring assembly prior to disassembly. Illustration 1 g00483426 3. Install Tooling (C) on Tooling (B), as shown. Illustration 2 g00494710 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 3/6(W) Illustration 3 g00483437 Note: Two adjustable supports (1), reaction plate (2) and movable plate (3) are part of Tooling (A). 4. Adjust the spacing between reaction plate (2) and movable plate (3). The spacing is approximately the same length as the recoil spring assembly (free length). Also, make sure that two adjustable supports (1) are positioned between the reaction plate and the movable plate, as shown. Level the two supports. Note: The recoil spring assembly may be installed in Tooling (A) from the end. In this case, reaction plate (2) must be removed. Then reinstall the reaction plate after the recoil spring assembly is in place on two adjustable supports (1). NOTICE Do not remove the hoist from the recoil spring assembly until the unit is leveled, centered and locked in the specified tooling. 5. The combined weight of the recoil spring assembly is approximately 116 kg (255 lb). 6. Fasten a suitable lifting device to the recoil spring assembly. Put the recoil spring assembly in position on two adjustable supports (1) in Tooling (A). 7. Adjust the two adjustable supports in order to align the centerline of the recoil spring assembly with the centerline of Tooling (A). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 4/6(W) Illustration 4 g00498760 The hoist has been removed from the recoil spring assembly in order to provide a better illustration of level gauge (4). 8. Put a level gauge (4) on the recoil spring assembly. Illustration 5 g00498781 9. Reposition the recoil spring assembly until the recoil spring assembly is level. Reposition the recoil spring assembly until the retaining rod and nut (6) are centered in the hole in reaction plate (2). 10. The recoil spring assembly is leveled by moving adjustable supports (1) higher or lower. After the recoil spring assembly is leveled and centered, install two pins (5) on the back side of reaction plate (2), as shown. 11. Operate Tooling (B) enough to hold the recoil spring assembly in position between reaction plate (2) and movable plate (3). Make sure that the recoil spring assembly is level and centered. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 5/6(W) Illustration 6 g00498784 Several tons of force are required to compress the recoil spring during assembly. Do not compress the spring assembly until the covers on the tooling have been closed. It is possible for the recoil spring to twist under load and come out of the tooling resulting in injury or death. 12. Close covers (7) on Tooling (A). Use Tooling (B) to compress the recoil spring assembly slightly. Illustration 7 g00889063 13. Through the opening in the end of Tooling (A), remove the socket head bolts and lock strip (8) from the end of the retaining rod. 14. Remove nut (6) with Tooling (D). Release the force on the recoil spring assembly. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 6/6(W) 15. Open the covers on Tooling (A). Fasten a suitable lifting device to the recoil spring assembly, and remove the recoil spring assembly from Tooling (A). Illustration 8 g00902471 16. Separate the components of the recoil spring assembly. Remove support (12), spring (10), support (9), and rod (11). Copyright 1993 - 2019 Caterpillar Inc. Tue Oct 1 10:05:11 UTC+0800 2019 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 1/6(W) Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320C EXCAVATOR PAB Configuration: 320C & 320C L Excavators PAB00001-UP (MACHINE) POWERED BY 3066 Engine Disassembly and Assembly 320C Excavator Machine Systems Media Number -RENR3826-16 Publication Date -01/11/2014 Date Updated -30/03/2016 i06208069 Recoil Spring - Assemble SMCS - 4158-016 Assembly Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 4C-9540 Recoil Spring Bench 1 B 223-3506 Hydraulic Cylinder and Lines Gp 1 C 8S-9971 Adapter 1 D - See Recoil Spring Chart - E - Loctite 242 - The spring of the recoil spring assembly is compressed under several tons of force. Do not attempt to compress or release the tension of the spring with the nut on the end of the retaining rod. Damaged threads on the retaining rod or nut can cause the assembly to come apart with force, resulting in injury or death. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 2/6(W) Note: Prior to assembling the recoil spring assembly, make sure that Tooling (A) is on a level surface. Illustration 1 g03855728 1. Check the condition of the threads on rod (11) and nut (6). If the threads are worn or damaged, use new parts for replacement. 2. Assemble the recoil spring assembly loosely. Position spring (10) onto support (9). Install rod (11) into support (9). Position support (12). Illustration 2 g00483426 3. Install Tooling (C) on Tooling (B). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 3/6(W) Illustration 3 g00494710 Illustration 4 g00483437 Note: Two adjustable supports (1), reaction plate (2), and movable plate (3) are part of Tooling (A). 4. Adjust the spacing between reaction plate (2) and movable plate (3) so that the spacing is approximately the same length as the recoil spring assembly. Also, make sure that two adjustable supports (1) are positioned between the reaction plate and the movable plate, as shown. Level the two supports. Note: The recoil spring assembly may be installed in Tooling (A) from the end. In this case, reaction plate (2) must be removed. Then reinstall the reaction plate after the recoil spring assembly is in place on two adjustable supports (1). NOTICE Do not remove the hoist from the recoil spring assembly until the unit is leveled, centered and locked in the specified tooling. 5. The combined weight of the recoil spring assembly is approximately 116 kg (255 lb). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 4/6(W) 6. Fasten a suitable lifting device to the recoil spring assembly. Position the recoil spring assembly on two adjustable supports (1) in Tooling (A). 7. Adjust the two adjustable supports in order to align the centerline of the recoil spring assembly with the centerline of Tooling (A). Illustration 5 g00949740 The hoist has been removed from the recoil spring assembly in order to provide a better illustration of level gauge (4). 8. Operate Tooling (B) and guide the end of the recoil spring assembly through the hole in reaction plate (2). Put a level gauge (4) on the recoil spring assembly. Make sure that the recoil spring assembly is level and centered in Tooling (A). Remove the suitable lifting device from the recoil spring assembly. Illustration 6 g00498784 9. Close covers (7) on Tooling (A). Compress the recoil spring assembly with Tooling (B). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 5/6(W) Illustration 7 g03855741 (X) Compressed length of the spring. 10. Open the covers on Tooling (A). Measure the assembled length of the recoil spring. The Compressed Length (X) must be set per chart below. Table 2 Recoil Spring Length Model Spring Length Socket 312E 377 0.70 mm (15 0.028inch) 386-3318 318C 432 0.70 mm (17 0.028 inch) 386-3319 320C 432 0.70 mm (17 0.028 inch) 386-3319 320D 550 1.50 mm (22 0.60 inch) 142-4216 320E 550 1.50 mm (22 0.060 inch) 142-4216 321C 440 0.7 mm (17 0.030inch) 386-3319 321D 550 1.50 mm (22 0.060 inch) 142-4216 322C 526 1.50 mm (21 0.060 inch) 142-4216 325C 640 1.0 mm (25. 0.040inch) 386-3313 11. If the assembled length is not correct, close covers (7) on Tooling (A), and adjust the spring length with Tooling (B). If the assembled length is correct, the assembly of the recoil spring assembly can be completed. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 6/6(W) Illustration 8 g03855744 12. Apply a rust inhibitor to the threads on the end of the retaining rod for the recoil spring. Install nut (6). Tighten nut (6) with Tooling (D). 13. Put Tooling (E) on the threads of the socket head bolts that hold strip (8) in place. Install the strip and the socket head bolts that hold the strip. 14. Fasten a suitable lifting device to the recoil spring assembly, and remove the recoil spring assembly from Tooling (A). The combined weight of the recoil spring assembly is approximately 116 kg (255 lb). End By: a. Install the front idler and the recoil spring. Copyright 1993 - 2019 Caterpillar Inc. Tue Oct 1 10:06:07 UTC+0800 2019 All Rights Reserved. Private Network For SIS Licensees. https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

w 1/3(W) Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320C EXCAVATOR PAB Configuration: 320C & 320C L Excavators PAB00001-UP (MACHINE) POWERED BY 3066 Engine Disassembly and Assembly 320C Excavator Machine Systems Media Number -RENR3826-16 Publication Date -01/11/2014 Date Updated -30/03/2016 i01957585 Hydraulic Track Adjusters - Disassemble SMCS - 4157-015 Disassembly Procedure Start By: a. Disassemble the recoil spring. Refer to Disassembly and Assembly, "Recoil Spring - Disassemble". Illustration 1 g00526451 1. Remove piston assembly (5) from cylinder (2). 2. Remove lip seal (6) from cylinder (2). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

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w 2/3(W) 3. Remove rod (1) from cylinder (2). 4. Remove O-ring seal (3) and backup ring (4) from cylinder (2). Illustration 2 g00526453 5. Remove O-ring seals (9), rings (8), and rings (7) from the grooves in piston assembly (5). Illustration 3 g00526454 6. Remove bolts (11). Remove plate (10). Illustration 4 g00526455 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw... 2019/10/1

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