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.

 

 

  

How to remove the radiator and hydraulic oil cooler of a Caterpillar 320D2 excavator?

 SMCS - 1353-011; 1374-011
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

 Disassembly Steps Start: 

A. Remove the engine hood.

  B. Remove the fan. 

C. Remove the aftercooler. 

 D. Remove the condenser. 

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 1. Drain the hydraulic oil into a suitable container for storage or disposal. 

2. Drain the engine coolant into a suitable container for storage or disposal. 

 

 

 3. Disconnect hose assemblies 

(1) and (5). Remove pipe assemblies 

(2) and (6). Disconnect hose assembly

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 (3) and then remove the reservoir. 

 4. Loosen clamps (7) and (9). Slide hose (8) into pipe assembly (10). Remove cable tie (11) and then remove panel (12). 

 

 

5. Remove cover (14). Remove bolts (13) and (15). 

 

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 6. Remove the hose assembly (16). 

 

 

7. Connect the appropriate lifting equipment to the radiator and hydraulic cooler assembly (17).

Caterpillar 320D2 Excavator DNP Engine Oil Cooler - Installation

 Assembly Steps

Note: Keep all parts clean and free of impurities. 

 

 

 

 

 Impurities will cause rapid wear and shorten the life of components.

 Installation Steps

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 1. C Tightening Sequence of the Engine Oil Cooler

 lean the surface of the cylinder block gasket.

 2. Position the new gasket (3) (not shown) onto the engine oil cooler assembly (2). Install the bolt (1) into the serrated hole of the gasket.

 Note: Ensure that bolts of different lengths are installed in the correct positions.

 3. Install the tool (A) onto the cylinder block.

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 4. Install the oil cooler assembly (2) onto the tool (A). Ensure that the oil cooler assembly is correctly positioned in the recess of the cylinder block.

  5. Tighten the bolt (1) by hand. 

 6. Remove the tool (A). 

7. Install the remaining bolts (1) onto the engine oil cooler assembly (2). 

 8. Tighten bolt (1) to a torque of 22 N·m (195 lb in) in the sequence shown in Figure 3.

 9. Install the oil filter housing. For the correct procedure, see Disassembly and Assembly, "Oil Filter Housing - Removal and Installation". 

 10. Add coolant to the correct level. Refer to the Operation and Maintenance Manual, "Coolant System - Replacement" for the correct procedure.

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caterpillar 320D2 Excavator Engine Oil Cooler - Removal

  Removal Procedure

 Caution

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Ensure that all adjustments and repairs to the fuel system are performed by properly trained and authorized personnel.  

 

  Before beginning any work on the fuel system, refer to the Operation and Maintenance Manual, "General Hazard Information and High-Pressure Fuel Lines" for safety information.

 For detailed information on cleanliness standards that must be followed during all fuel system operations,

 see System Operation, Testing and Adjustment, "Fuel System Component Cleanliness".

 Caution Keep all parts clean and free of contaminants.

  Contaminants cause rapid wear and shorten component life.

Caution When inspecting, maintaining, testing, adjusting, and repairing the product, always take care to ensure that fluids are contained in containers. Before opening any chamber or disassembling any component containing fluid, be prepared to collect the fluid in a suitable container. 

 Dispose of all fluids in accordance with local regulations and instructions.

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 1. Drain the coolant from the cooling system into a suitable container. For the correct procedure, refer to the Operation and Maintenance Manual,

"Cooling System Coolant - Drainage". 2. Place a suitable container under the engine oil cooler to collect any spilled oil.

 3. Remove the oil filter housing. See Disassembly and Assembly, "Oil Filter Housing - Removal and Installation".

  4. Remove bolt (1) from the engine oil cooler assembly (2). Note the positions of bolts of different lengths. Do not remove the bolt at position (X).

Note: Support the engine oil cooler while removing the bolts.  

 5. Remove the engine oil cooler assembly (2) from the cylinder block. 

 6. Remove the gasket (3) (not shown).

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Caterpillar 320D2 Excavator DNP Oil-Water Separator and Fuel Filter (Main) - Installation

Note: Ensure that all adjustments and repairs to the fuel system are performed by properly trained and authorized personnel. 

Before commencing any work on the fuel system, refer to the Operation and Maintenance Manual, "General Hazards and High-Pressure Fuel Lines," for safety information.

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For detailed information on the cleanliness standards that must be followed during all fuel system operations, please refer to System Operation, Testing and Adjustment, "Fuel System Component Cleanliness".

 

1. Ensure the fuel pre-filter housing is clean and undamaged. If necessary, replace the entire fuel pre-filter housing and filter assembly.  

 

 

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 2. If necessary, assemble the fuel pre-filter (2) according to steps 2.a through 2.d.

  a. Install the new sealing gasket (12) to plug (11). Install the plug (11) onto the fuel pre-filter (2). Tighten the plug to a torque of 23 N·m (204 lb in). 

 b. Install the new sealing gasket (15) onto the connector (16). Install the connector (16) onto the fuel pre-filter (2). Tighten the connector to a torque of 23 N·m (204 lb in). 

c. Install the new sealing gasket (14) onto the plug (13). Install the plug (13) onto the fuel pre-filter (2). Tighten the plug to a torque of 23 N·m (204 lb in). 

d. Install the new filter element (17). For the correct procedure, refer to the Operation and Maintenance Manual, "Fuel System Coarse Filter (Fuel-Water Separator) Filter - Replacement".

 

 

3. If necessary, install the fuel pre-filter mounting bracket onto the cylinder head. Install the fuel pre-filter mounting bracket according to steps 3.a through 3.c. 

 a. Position the fuel pre-filter mounting bracket (10) onto the cylinder head (8).

 b. Install bolts (7) and (9) onto the fuel pre-filter mounting bracket (9).

 

 

c. Tighten bolt (7) to a torque of 44 N·m (32 lb ft). Tighten bolt (9) to a torque of 22 N·m (195 lb in).

 

 

4. Position the fuel pre-filter assembly (2) onto the fuel pre-filter mounting bracket. 

 

 5. Install bolt (1) onto the fuel pre-filter assembly (2). Tighten the bolt to a torque of 44 N·m (32 lb ft).

 

 Note: Ensure the plastic tubing assembly and pipe assembly are installed in their original positions. Failure to connect the plastic tubing assembly to the correct ports will allow contaminants to enter the fuel system. If contaminated fuel enters the fuel system, it will cause serious engine damage.

 

 

6. Remove the plug from the fuel pre-filter base (2). 

 

 7. Remove the cap from the pipe assembly (5). 

 

8. Position the new sealing gasket (3) (not shown) onto the hollow bolt (4). Install the hollow bolt (4) onto the pipe assembly (5), then install the remaining new sealing gaskets (3) (not shown). Tighten the hollow bolt (4) by hand.  

 

9. Tighten the hollow bolt (4) to a torque of 21 N·m (186 lb in). 

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10. Remove the cap from the hose assembly (5). 

 

 11. Remove the plug from the connector on the fuel pre-filter base (2). https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... Friday, October 26, 2018

 

 12. Connect the hose assembly (5) to the connector on the fuel pre-filter base (2). 

 

13. Turn the fuel supply to the ON position. End: a. Bleed the air from the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System - Charging" for the correct procedure.

Caterpillar 320D2 Excavator DNP Oil-Water Separator and Fuel Filter (Main) - Removal

 Removal Steps Table 1 

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Required Tools

 Tool Part Number Part Description Quantity

 A 422-7170 Cap Kit 1

  Note Ensure that all adjustments and repairs to the fuel system are performed by properly trained and authorized personnel.

  Before beginning any work on the fuel system, refer to the Operation and Maintenance Manual, "General Hazard Information and High-Pressure Fuel Lines" for safety information.

 For detailed information on the cleanliness standards that must be followed during all fuel system operations,

 see System Operation, Testing and Adjustment, "Fuel System Component Cleanliness".

 

 

 2. Make a temporary identification mark on the pipe and hose assemblies to indicate the correct location.

 

 
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3. Place an appropriate container under the fuel pre-filter to collect any spilled fuel. 

 

  1. Turn the fuel supply to the disconnect position.

 4. Disconnect the hose assembly (6) from the fuel pre-filter (2).

  5. Use tool (A) to plug the connector on the fuel pre-filter base (2). 

 6. Use tool (A) to cover the hose assembly (6). 

 7. Remove the hollow bolt (4) and sealing washer (3) (not shown). 

8. Use tool (A) to cover the pipe assembly (5). 

9. Use tool (A) to plug the fuel pre-filter base (2). 

10. Remove bolt (1) and then remove the fuel pre-filter (2) from the fuel pre-filter mounting bracket. 

 

 

 

 

 

 

 11. If necessary, remove the fuel pre-filter mounting bracket from the cylinder head. Remove the fuel pre-filter mounting bracket following steps 3.a through 3.c. 3 

 

 

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a. Remove bolts (7) and (9) from the fuel filter mounting bracket (10).

  b. Remove the mounting bracket (12) from the cylinder head (8).

12. If necessary, disassemble the fuel filter (2) following steps 12.a through 12.d. 

  a. Remove the plug (11) and gasket (12). Use tool (A) to plug the fuel filter base (2). 

 b. Remove the connector (16), then remove the gasket (16). Use tool (A) to plug the fuel filter base (2). Use tool (A) to cover the connector (16). 

 c. Remove the plug (13) and gasket (14). Use tool (A) to plug the fuel filter base (2). 

d. Remove the fuel filter element (17). For the correct procedure, refer to the Operation and Maintenance Manual, "Fuel System Coarse Filter (Fuel-Water Separator) Filter Element - Replacement".