How to disassemble and install the 320D2 EXCAVATOR piston cooling nozzle

  Removal Steps

Note: Keep all parts clean and free of impurities. 

Impurities cause rapid wear and shorten component life. 

  1. If the crankshaft is installed, use tool (A) to rotate the crankshaft so that the piston cooling nozzles can be accessed.

 

 

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 2. Remove bolt (1) and piston cooling nozzle (2) from the cylinder block. Remove O-ring (3) (not shown).

 3. Repeat steps 1 through 2 to remove the remaining piston cooling nozzles.

 Installation Steps

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  Note: Keep all parts clean and free of impurities.

 Impurities cause rapid wear and shorten component life.

  1. Clean the piston cooling nozzles and check them for damage. Ensure the valves move freely within each piston cooling nozzle. Replace any damaged piston cooling nozzles. For detailed information on piston cooling nozzle inspection procedures, please refer to the technical specifications, "Piston Cooling Nozzle Positioning".  

2. If a crankshaft is installed, use tool (A) to rotate the crankshaft so that the mounting flange of the piston cooling nozzle can be accesse

3. Install the new O-ring (3) (not shown) onto the piston cooling nozzle (2). 

4. Install the piston cooling nozzle (2) into the oil passage of the cylinder block. 

Note: Before tightening the bolts, ensure that the piston cooling nozzle is correctly installed in the oil passage of the cylinder block.  

  5. Install bolt (1). Tighten the bolt to a torque of 9 N·m (80 lb in).

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6. Repeat steps 2 through 4 to install the remaining piston cooling nozzles.

How to install caterpillar 320D2 Excavator shock absorbers and pulleys

 

 

    1. Ensure the crankshaft pulley and front of the crankshaft are clean and undamaged.

 2. Inspect the damper (5) for damage. Replace the damper if necessary.

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3. If necessary, install the damper and crankshaft pulley onto the crankshaft adapter following steps 3.

a. Position the crankshaft pulley (4) onto the appropriate support.

 b. Install the tool (D) onto the crankshaft pulley (4).

 c. Install the damper (6) above the tool (D).

d. Install the bolts (6) onto the crankshaft pulley assembly. 

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Note: Arrange the bolts (6) at equal intervals around the crankshaft pulley assembly. 

e. Tighten the bolts (6) by hand. 

 4. If necessary, install the friction plates (3). Install the friction plates (3) following steps 4.a through 4.b.

a. Install the friction plates (3). b. Install the new front oil seal onto the front cover. For correct steps, see Disassembly and Assembly, "Crankshaft Front Oil Seal - Removal and Installation". 

 

 a. Position the crankshaft pulley (4) onto the appropriate support.

5. If the friction plates have not been removed, install the new front oil seal onto the front cover. For correct steps, see Disassembly and Assembly, "Crankshaft Front Oil Seal - Removal and Installation". 

 

 6. Install tool (A) onto the crankshaft.

  7. Install the crankshaft pulley assembly (2) onto the crankshaft.

 Note: Do not lubricate the oil seal surface of the front oil seal or the crankshaft pulley assembly.

 8. Install the two Torx screws (1) onto the crankshaft pulley assembly (2) and tighten by hand.

9. Remove tool (A). 10. Install the remaining Torx screws (1) onto the crankshaft pulley assembly (2).

11. Tighten bolts (6) to a torque of 115 N·m (85 lb ft). 

12. Using appropriate tools, hold the crankshaft in place. Tighten Torx screws (1) to a torque of 40 N·m (29 lb ft).   

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13. Using tools (B) and (C), turn Torx screws (1) another 120 degrees.

 

 

How to Remove the 320D2 Excavator Shock Absorber and Pulley

 

 

 

 

  1. Using appropriate tools, immobilize the crankshaft. Use tool (B) to remove one Torx screw (1) from the crankshaft pulley assembly (2).

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 2. Install tool (A) onto the crankshaft pulley assembly (2).

 3. Remove the remaining Torx screws (1) from the crankshaft pulley assembly (2).

  4. Remove the crankshaft pulley assembly (2).

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 5. Tool (A)

 

 

 

 

 

 

 

  6. If necessary, remove the friction plates (3) from the crankshaft following steps 6.a through 6.b.

a. Remove the front oil seal from the front cover. For correct procedures, see Disassembly and Assembly, "Crankshaft Front Oil Seal - Removal and Installation". 

b. Remove the friction plates (3). 

 7. If necessary, disassemble the shock absorber and crankshaft pulley according to steps 7.

a through 7.c. a. Place the crankshaft pulley assembly on a suitable support. 

 

 b. Remove bolt (6) from the crankshaft pulley assembly (2).

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  c. Remove the shock absorber from the crankshaft pulley (5).

Caterpillar 320D2 Excavator Crankshaft Damper and Pulley - Removal and Installation

 Disassembly 

Steps Start: 

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A. Remove the fan. See Disassembly and Assembly, "Fan - Removal".

 

  1. Remove the screw plug (1). Secure the crankshaft with a suitable pin to ensure it does not rotate.

 

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  2. Remove the bolt (3) and the damper (2).

 

 3. Remove the bolt (5) and retaining ring (6). Remove the adapter and pulley (4) as a single unit.

 

 

 

 4. Remove the pulley (7) from the adapter (8).

 

 Installation steps

 

 

 1. Install the adapter (8) onto the pulley (7).

 

 2. Install the adapter and pulley (4) as a single unit. Install the retaining ring (6) and bolt (5). Tighten the bolt (5) to a torque of 200 N·m (148 lb ft).

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 3. Install the shock absorber (2) and bolts (3). Tighten bolts (3) to a torque of 115 N·m (85 lb ft).

 

 

 

4. Remove the appropriate pin. Install the screw plug (1).

 

Caterpillar 320D2 Excavator Connecting Rod Bearing Installation

 Note: Discard all old connecting rod fasteners. 

 1. Inspect the crankshaft pin for damage. If the crankshaft is damaged, replace it. For correct procedures, see Disassembly and Assembly, "Crankshaft - Removal" and Disassembly and Assembly, "Crankshaft - Installation". Ensure the bearing shells are clean and free from wear or damage.

 

 Replace the bearing shells if necessary.

 Note: If the bearing shells were replaced, check that an oversized bearing shell was previously installed.

  2. Install the upper bearing shell (4) onto the connecting rod (5). Ensure the locating tab of the upper bearing shell is properly seated in the groove of the connecting rod.

 Note: Both ends of the upper bearing shell must be centered on the connecting rod. The distance between the two ends of the upper bearing shell and the mating surface of the connecting rod must be equal.

  3. Lubricate the upper bearing shell (4) with clean engine oil. 

 4. Using tool (A), rotate the crankshaft until the crankshaft pin is at bottom dead center. 

5. Carefully pull the connecting rod (5) against the crankshaft pin.

 Note: Do not allow the connecting rod to contact the piston cooling nozzle.

 6. Clean the connecting rod cap (2). Install the lower bearing shell (3) onto the connecting rod cap (2). Ensure the locating tab of the lower bearing shell is correctly seated in the groove of the connecting rod cap. 

7. Lubricate the crankshaft pin and lower bearing shell (3) with clean engine oil. 

 

 

 

 8. Install the connecting rod cap (2) onto the connecting rod (5).

 Note: Ensure the etched number on the connecting rod cap (2) position (X) matches the etched number on the connecting rod (5) position (X). Ensure the connecting rod cap is facing correctly. The locating tabs of the upper and lower bearing shells should be on the same side.

  Note: Do not reuse old bolts to secure the connecting rod cap.

  9. Use tool (B) to install the new bolt (1) onto the connecting rod.  

10. Tighten the bolts evenly to a torque of 40 N·m (30 lb ft).

11. Turn the bolts 120 degrees clockwise. Use tools (B) and (C) to obtain the correct final torque. 

12. Ensure there is a tangible backlash after the connecting rod assembly is installed. Rotate the crankshaft to ensure there is no jamming. 

 13. Repeat steps 2 through 11 to install the remaining connecting rod bearings.

 Note: If all connecting rod bearings need to be replaced, this procedure can be performed simultaneously on two cylinders. This procedure can be performed simultaneously on the following cylinder pairs: 1 and 6, 2 and 5, and 3 and 4. Ensure both pairs of connecting rod bearings are installed before switching from one pair of cylinders to the other. For correct procedures, see Disassembly and Assembly, "Connecting Rod Bearings - Installation".

14. If the glow plugs were removed, install them. For the correct steps, please refer to Disassembly and Assembly, "Glow Plugs - Removal and Installation". 

 End: https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... Friday, October 26, 2018

 

a. Install the engine oil pump. For the correct steps, please refer to Disassembly and Assembly, "Engine Oil Pump - Installation".

 

This article describes how to disassemble the 320D2 EXCAVATOR D connecting rod bearing.

  Disassembly Steps

 

 

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 1. Using tool (A), rotate the crankshaft until the crankshaft pin is in the bottom dead center position.

 If necessary, remove the glow plugs. For correct procedures, see Disassembly and Assembly, "Glow Plugs - Removal and Installation".

 Note: Removing the glow plugs helps in removing the connecting rod bearing. Removing the glow plugs is not always necessary.

 2. The connecting rod and connecting rod cap should have etched numbers in position (X). The numbers on the connecting rod and connecting rod cap must match.

 If necessary, make a temporary mark on the connecting rod (5) and connecting rod cap (2) to identify the cylinder number.

Note: Do not punch identification marks on the split-section connecting rod. Do not emboss identification marks on the split-section connecting rod. 

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  3. Using tool (B), remove bolt (1). Dispose of bolt (1).  

  4. Remove the connecting rod cap (2) from the connecting rod (5).

  5. Remove the lower bearing shell (3) from the connecting rod cap (2). Keep the bearing shell and connecting rod cap together.

 6. Carefully push the connecting rod (5) into the cylinder bore until the connecting rod (5) is off the crankshaft. Remove the upper bearing shell (4) from the connecting rod. Keep the bearing shell together.

 

 Note: Do not push on the split section of the connecting rod, as this will cause damage. Do not allow the connecting rod to contact the piston cooling nozzle.

 

 7. Repeat steps 1 through 6 to remove the remaining bearing shells.

 Note: The connecting rod cap must be installed when placing a split section connecting rod. Perform the installation procedure immediately after completing the bearing shell removal procedure. For correct procedures, see Disassembly and Assembly, "Connecting Rod Bearings - Installation".

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How to install a CAT radiator and hydraulic oil cooler - CAT 320D2 Excavator

 SMCS - 1353-012; 1374-012  

S/N - DFM1-UP 

S/N - DNP1-UP 

S/N - EAL1-UP 

S/N - EKT1-UP 

S/N - ESG1-UP

 S/N - FKK1-UP 

S/N - GBA1-UP

 S/N - HDM1-UP

 S/N - JFM1-UP

 S/N - KHR1-UP 

S/N - LMA1-UP 

S/N - NBT1-UP S/N - TGJ1-UP 

S/N - TMF1-UP S/N - WDJ1-UP 

S/N - XAN1-UP S/N - XBB1-UP

 S/N - XCC1-UP 

S/N - YEA1-UP 

S/N - ZBD1-UP 

S/N - ZCS1-UP

 1. Install the radiator and hydraulic oil cooler assembly (17) using appropriate lifting equipment.

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                                          2. Install the bolts (18).

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  3. Install the hose assembly (16).  

 

 

 

 

 

                                                     4. Install bolts (13) and (15). Install the cover (14).

 5. Install the panel (12). Install the cable tie (11). Connect the hose (8) to the pipe assembly (10) and tighten the hose clamps

 

6. Install the reservoir (4), and connect the hose assembly (3), pipe assembly (6), and (2). Install the hose assembly (5) and (1).

7. Add hydraulic oil. Refer to the Operation and Maintenance Manual, "Manual Hydraulic System - Filling".

 

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End By: a. Install the condenser. b. Install the aftercooler. c. Install the fan. d. Install the engine hood.