Caterpillar Cat 322C FM EXCAVATOR (Prefix LAR) Service Repair Manual Instant Download

Service Repair Manual

Models

322C FM EXCAVATOR

322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B En...

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 322C FM EXCAVATOR LAR Configuration: 322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B Engine

Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06

Publication Date -01/08/2018

Date Updated -17/08/2018

i01518323

Crankshaft Main Bearings - Install SMCS - 1203-012

Installation Procedure Table 1 Required Tools Tool

Part Number

Part Description

Qty

A

2P-5518

Main Bearing Tool

1

B

8T-5096

Dial Indicator Group

1

NOTICE Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

Note: Place clean engine oil on the crankshaft main bearings prior to assembly. Ensure that the tabs on the back side of the crankshaft main bearings fit in the grooves of the crankshaft main bearing caps and the cylinder block.

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Illustration 1

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g00516920

1. Use Tool (A) and install the upper halves of the crankshaft main bearings in the cylinder block. Do not put oil on the back of the crankshaft main bearing.

Illustration 2

g00610152

2. Install the lower halves of the crankshaft main bearings in crankshaft main bearing caps (2).

Do not put oil on the back of the crankshaft main bearing.

NOTICE Crankshaft main bearing caps should be installed with the part number toward the right side of the engine. Crankshaft main bearing caps are to be identified by stamped numbers 1 through 7 located on the bottom surface. The thrust plate is used on the number 6 crankshaft main bearing only.

3. Place crankshaft main bearing caps (2) in position on the cylinder block. Place clean engine oil or Molylube on the bolt threads and on the washer face. Install bolts (1).

4. Tighten bolts (1) to a torque of 54 ± 7 N·m (40 ± 5 lb ft). Tighten each bolt (1) for an additional 90 ± 5 degrees (1/4 turn).

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Illustration 3

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g00517003

5. Check the end play of the crankshaft with Tool (B). The end play must be 0.07 mm (0.003 inch) to 0.32 mm (0.013 inch).

End By: a. Install the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump Install".

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 322C FM EXCAVATOR LAR Configuration: 322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B Engine

Disassembly and Assembly 3126B Engines for Caterpillar Built Machines Media Number -SENR9581-06

Publication Date -01/08/2018

Date Updated -17/08/2018

i02374826

Crankshaft - Remove SMCS - 1202-011

Removal Procedure Start By: a. Remove the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing Remove and Install". b. Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump Remove". c. Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) Remove".

NOTICE Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

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Illustration 1

g01028042

Illustration 2

g01184978

1. Remove main bearing caps (2).

2. Remove connecting rod caps (3).

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3. Put identification marks on the gear train for installation purposes. Attach a suitable lifting device to each end of crankshaft (1). Carefully remove crankshaft (1) from the cylinder block. The weight of crankshaft (1) is approximately 60 kg (132 lb).

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 322C FM EXCAVATOR LAR Configuration: 322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B 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.

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Illustration 1

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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.

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 322C FM EXCAVATOR LAR Configuration: 322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B 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.

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322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B En...

Illustration 1

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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".

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 322C FM EXCAVATOR LAR Configuration: 322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B 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

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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.

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322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B En...

Illustration 2

3/3

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 - 2019 Caterpillar Inc.

Sat Nov 2 22:12:34 UTC+0800 2019

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 322C FM EXCAVATOR LAR Configuration: 322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B 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

A

Part Number

Part Description

Qty

8B-7551

Bearing Puller

1

8B-7549

Puller Leg

2

3H-0465

Push-Puller Plate

4

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.

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322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B En...

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.

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2/3

322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B En...

Illustration 2

3/3

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".

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Sat Nov 2 22:13:30 UTC+0800 2019

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 322C FM EXCAVATOR LAR Configuration: 322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B 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

198-9142

Plastic Gauge (Green) 0.025 to 0.076 mm (0.001 to 0.003 inch)

1

198-9143

Plastic Gauge (Red) 0.051 to 0.152 mm (0.002 to 0.006 inch)

1

198-9144

Plastic Gauge (Blue) 0.102 to 0.229 mm (0.004 to 0.009 inch)

1

198-9145

Plastic Gauge (Yellow) 0.230 to 0.510 mm (0.009 to 0.020 inch)

1

A

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.

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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.

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Illustration 1

3/3

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.

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 322C FM EXCAVATOR LAR Configuration: 322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B 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

Copyright 1993 - 2019 Caterpillar Inc.

g01028295

Sat Nov 2 22:15:21 UTC+0800 2019

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Shutdown SIS Previous Screen Product: EXCAVATOR Model: 322C FM EXCAVATOR LAR Configuration: 322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B 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

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Suggest: If the above button click is invalid.

Please download this document first, and then click the above link to download the complete manual.

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322C Forest Swing Machines LAR00001-UP (MACHINE) POWERED BY 3126B En...

Illustration 2

2/2

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).

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