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Service Repair Manual
Models
320D LN Excavator
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Product: EXCAVATOR
Model: 320D LN EXCAVATOR WBN
Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine
Disassembly and Assembly
C6.4 Engine for Caterpillar Built Machines
Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017
i02747674
Inlet and Exhaust Valve Springs - Remove and Install
SMCS - 1108-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9U-6195 Valve Spring Compressor 1
B 9U-6198 Crankshaft Turning Tool 1
Start By:
a. Remove the rocker shaft assembly. Refer to Disassembly and Assembly, "Rocker Shaft and
Pushrod - Remove".
b. Remove the valve mechanism cover base. Refer to Disassembly and Assembly, "Valve
Mechanism Cover Base - Remove and Install".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Note: The following procedure should be adopted in order to remove the valve springs when the
cylinder head is installed to the engine.
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Note: Ensure that the appropriate piston is at top dead center before the valve spring is removed.
Failure to ensure that the piston is at top dead center may allow the valve to drop into the cylinder
bore.
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
NOTICE
Plug the apertures for the push rods in the cylinder head in order to
prevent the entry of loose parts into the engine.
Illustration 1 g01376301
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Illustration 2 g01376302
NOTICE
Ensure that the valve spring is compressed squarely or damage to the
valve stem may occur.
1. Install Tooling (A) into position on the cylinder head in order to compress a valve spring (4)
for the appropriate piston.
2. Use Tooling (A) in order to compress valve spring (4) and open valve (1) slightly.
Note: Do not compress valve spring (4) so that valve spring retainer (3) touches valve stem
seal (5).
3. Use Tooling (B) in order to rotate the crankshaft carefully, until the piston touches the
valve.
Note: Do not use excessive force to turn the crankshaft. The use of force can result in bent
valve stems.
4. Continue to rotate the crankshaft and gradually release the pressure on Tooling (A) until the
piston is at the top dead center position. The valve is now held in a position that allows
valve spring (4) to be safely removed.
Note: Valve springs must be replaced in pairs for the inlet valve or the exhaust valve of
each cylinder. If all valve springs require replacement the procedure can be carried out on
two cylinders at the same time. The procedure can be carried out on the following pairs of
cylinders. 1 with 6, 2 with 5 and 3 with 4. Ensure that all of the valve springs are installed
before changing from one pair of cylinders to another pair of cylinders.
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NOTICE
Do not turn the crankshaft while the valve springs are removed.
5. Apply sufficient pressure to Tooling (A) in order to allow removal of valve keepers (2).
Note: Do not compress valve spring (4) so that valve spring retainer (3) touches valve stem
seal (5).
Remove valve keepers (2).
6. Slowly release the pressure on Tooling (A).
7. Remove valve spring retainer (3) and remove valve spring (4).
8. If necessary, remove valve stem seals (5).
9. Remove Tooling (A).
Note: The installation of each set of valve springs (4) must be completed before attempting to
remove the next set of valve springs (4).
Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 9U-6195 Valve Spring Compressor 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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Illustration 3 g01376913
Illustration 4 g01376302
1. The outer face of the valve guides must be clean and dry before installing the valve stem
seal (5). Install new valve stem seal (5) onto the valve guide.
2. Install valve spring (4) onto the cylinder head. Position valve spring retainer (3) on valve
spring (4).
3. Install Tooling (A) in the appropriate position on the cylinder head in order to compress
valve spring (4).
Improper assembly of parts that are spring loaded can cause bodily
injury.
To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
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4. Apply sufficient pressure to Tooling (A) in order to install valve keepers (2). Do not
compress valve spring (4) so that valve spring retainer (3) touches valve stem seal (5).
5. Carefully release the pressure on Tooling (A).
End By:
a. Install the valve mechanism cover base. Refer to Disassembly and Assembly, "Valve
Mechanism Cover Base - Remove and Install".
b. Install the rocker shaft assembly. Refer to Disassembly and Assembly, "Rocker Shaft and
Pushrod - Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Mon Feb 10 21:05:56 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 320D LN EXCAVATOR WBN
Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine
Disassembly and Assembly
C6.4 Engine for Caterpillar Built Machines
Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017
i06051426
Inlet and Exhaust Valves - Remove and Install
SMCS - 1105-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 8S-6691 Cylinder Head Repair Stand 1
B 9U-6195 Valve Spring Compressor Gp 1
C 5P-1720 Seal Pick 1
Start By:
a. Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head -
Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Note: Note the location and orientation of all components for assembly purposes.
1. Clean the bottom face of the cylinder head. Check the depth of the valves below the face of
the cylinder head before the valve springs are removed. Refer to Specifications, "Cylinder
Head Valves" for the correct dimensions.
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2. Place a temporary identification mark on the heads of the valves in order to identify the
correct position.
Illustration 1 g01376164
3. Use a suitable lifting device in order to position cylinder head (1) onto Tooling (A) with the
valve springs upward. The weight of cylinder head (1) is approximately 113 kg (250 lb).
Note: Ensure that cylinder head (1) is kept on a clean, soft surface in order to prevent
damage to the machined face.
Illustration 2 g01376174
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Illustration 3 g01376184
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
4. Install Tooling (B) on cylinder head (1) in order to compress valve spring (5).
NOTICE
Ensure that the valve spring is compressed squarely or damage to the
valve stem may occur.
5. Apply sufficient pressure to Tooling (B) in order to remove valve keepers (3). Do not
compress the spring so that valve spring retainer (4) touches valve stem seal (6).
6. Slowly release the pressure on Tooling (B).
7. Remove valve spring retainer (4). Remove valve spring (5). Remove valve (2).
8. Use Tooling (C) in order to remove valve stem seal (6).
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9. Repeat Steps 4 through 7 for the remaining valves.
Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 8S-6691 Cylinder Head Repair Stand 1
B 9U-6195 Valve Spring Compressor Gp 1
D 312-8755 Valve Stem Seal Installer 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1. Clean all components of the cylinder head assembly. Ensure that all ports, all coolant
passages, and all lubrication passages in the cylinder head are free from debris. Follow
Steps 1.a through 1.d in order to inspect the components of the cylinder head assembly.
Replace any components that are worn or damaged.
a. Inspect the cylinder head for wear and for damage. Refer to Testing and Adjusting,
"Cylinder Head Inspect".
b. Inspect the valve seats for wear and for damage. Refer to Specifications, "Cylinder
Head Valves" for further information.
c. Inspect the valve guides for wear and for damage. Refer to Specifications, "Cylinder
Head Valves" and Testing and Adjusting, "Valve Guide - Inspect" for further
information.
d. Inspect the valves for wear and for damage. Refer to Specifications, "Cylinder Head
Valves ".
e. Inspect valve springs (5) for damage and for the correct length. Refer to
Specifications, "Cylinder Head Valves ".
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Illustration 4 g01376184
Illustration 5 g01376926
2. Lubricate the stem of valve (2) with clean engine oil. Install valve (2) in the appropriate
position in the cylinder head.
3. The outer face of the valve guides must be clean and dry before installing the valve stem
seal (6). Use Tooling (C) in order to install new valve stem seal (6) onto the valve guide.
4. Install valve spring (5) onto the cylinder head. Position valve spring retainer (4) on valve
spring (5).
5. Install Tooling (B) in the appropriate position on cylinder head (1) in order to compress
valve spring (5).
Improper assembly of parts that are spring loaded can cause bodily
injury.
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To prevent possible injury, follow the established assembly procedure
and wear protective equipment.
6. Apply sufficient pressure to Tooling (B) in order to install valve keepers (3). Do not
compress spring (5) so that valve spring retainer (4) touches valve stem seal (6).
7. Carefully release the pressure on Tooling (B).
8. Repeat Steps 2 through 7 for the remaining valves.
End By:
a. Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Mon Feb 10 21:06:52 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 320D LN EXCAVATOR WBN
Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine
Disassembly and Assembly
C6.4 Engine for Caterpillar Built Machines
Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017
i04625003
Inlet and Exhaust Valve Guides - Remove and Install
SMCS - 1104-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 384-8861 Valve Guide Remover 1
B 138-7573 Link Bracket 4
C 1U-9200 Lever Puller Hoist 1
D 8S-6691 Cylinder Head Repair Stand 1
Start By:
A. Remove the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and
Exhaust Valves - Remove and Install".
B. Remove the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit
Injector - Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat products.
Dispose of all fluids according to local regulations and mandates.
Note: Refer to Special Instructions, SMHS7953-00, "Use of Valve Seat Insert Puller Group" to
aid with the removal of the inlet and exhaust valve seats.
Illustration 1 g01377064
1. Attach Tooling (B) , Tooling (C) , and a suitable lifting device to cylinder head (1) . Use
Tooling (B) , Tooling (C) , and the suitable lifting device in order to turn over cylinder head
(1) by 180° onto Tooling (D) .
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Illustration 2 g01377121
2. Use Tooling (A) in order to remove valve guides (2) (not shown).
Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
E 384-8862 Valve Guide Installer 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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Illustration 3 g01377130
1. Lubricate the outside of valve guides (2) (not shown) with clean engine oil.
2. Use Tooling (E) in order to install new valve guides (2) . Install valve guide (2) so that
valve guide (2) protrudes 16.000 mm (0.6299 inch) above Surface (X) of cylinder head (1) .
End By:
a. Install the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit
Injector - Install".
b. Install the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust
Valves - Remove and Install".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Mon Feb 10 21:07:48 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 320D LN EXCAVATOR WBN
Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine
Disassembly and Assembly
C6.4 Engine for Caterpillar Built Machines
Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017
i04625001
Inlet and Exhaust Valve Seat Inserts - Remove and Install
SMCS - 1103-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
166-7441 Valve Seat Extractor Tool 1
6V-4194 Valve Seat Extractor (1)
1
6V-4196 Valve Seat Extractor (1)
1
B 138-7573 Link Bracket 4
C 1U-9200 Lever Puller Hoist 1
D 8S-6691 Cylinder Head Repair Stand 1
( 1 )
Component of the Valve Seat Extractor Tool Group.
Start By:
A. Remove the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and
Exhaust Valves - Remove and Install".
B. Remove the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit
Injectors - Remove".
NOTICE
Keep all parts clean from contaminants.
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Contaminants may cause rapid wear and shortened component life.
Note: Refer to Special Instructions, SMHS7953-00, "Use of Valve Seat Insert Puller Group" to
aid with the removal of the inlet and exhaust valve seats.
Illustration 1 g01377064
1. Attach Tooling (B ) , Tooling (C) , and a suitable lifting device to cylinder head (1) . Use
Tooling (B ) , Tooling (C) , and the suitable lifting device in order to turn over cylinder head
(1) by 180° onto Tooling (D) .
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Illustration 2 g01376571
2. Use the valve seat grinder of Tooling (A) in order to notch the valve seat.
Illustration 3 g01376578
3. Use the valve seat extractor of Tooling (A) to remove the inlet and exhaust valve seats.
4. Clean the valve seat in the cylinder head. Remove any rough areas from the valve seat in the
cylinder head.
5. Repeat Steps 2 through 4 for the remaining inlet valve seat inserts and exhaust valve seat
inserts.
Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
E 384-8859 Valve Seat Installer 1
F 384-8860 Valve Seat Installer 1
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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Illustration 4 g01377071
Typical Example
1. Lower the temperature of the new inlet valve seat inserts (2) . Use Tooling (E) in order to
install a new inlet valve seat insert (2) (not shown) in the cylinder head.
Illustration 5 g01376588
Typical Example
2. Lower the temperature of new exhaust valve seat inserts (3) . Use Tooling (E) and Tooling
(F) in order to install the new exhaust valve seat insert (3) (not shown) in the cylinder head.
Note: The temperature of exhaust valve seat insert (3) is lowered in order to ease the
installation of exhaust valve seat insert (3) .
3. Repeat Step 1 and 2 for the remaining inlet valve seat inserts and exhaust valve seat inserts.
End By:
a. Install the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust
Valves - Remove and Install".
b. Install the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit
Injectors - Install".
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 320D LN EXCAVATOR WBN
Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine
Disassembly and Assembly
C6.4 Engine for Caterpillar Built Machines
Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017
i02746253
Engine Oil Cooler - Remove
SMCS - 1378-011
Removal Procedure
Start By:
a. Remove the fuel injection pump. Refer to Disassembly and Assembly, "Fuel Injection Pump
- Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat products.
Dispose of all fluids according to local regulations and mandates.
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Illustration 1 g01375410
1. Disconnect harness assembly (1).
2. Remove bolts (2) and remove engine oil cooler (3). Remove gasket (4) (not shown) from the
engine cylinder block.
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Mon Feb 10 21:09:39 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 320D LN EXCAVATOR WBN
Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine
Disassembly and Assembly
C6.4 Engine for Caterpillar Built Machines
Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017
i02746254
Engine Oil Cooler - Disassemble
SMCS - 1378-015
Disassembly Procedure
Start By:
a. Remove the engine oil cooler. Refer to Disassembly and Assembly, "Engine Oil Cooler - Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting, and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat products.
Dispose of all fluids according to local regulations and mandates.
Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the
components should be thoroughly cleaned. This will help to prevent dirt from entering the internal
mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly
procedures on a clean work surface. Keep components covered and protected at all times.
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Caterpillar cat 320 d ln excavator (prefix wbn) service repair manual (wbn00001 and up)

  • 2. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D LN EXCAVATOR WBN Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine Disassembly and Assembly C6.4 Engine for Caterpillar Built Machines Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017 i02747674 Inlet and Exhaust Valve Springs - Remove and Install SMCS - 1108-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 9U-6195 Valve Spring Compressor 1 B 9U-6198 Crankshaft Turning Tool 1 Start By: a. Remove the rocker shaft assembly. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove". b. Remove the valve mechanism cover base. Refer to Disassembly and Assembly, "Valve Mechanism Cover Base - Remove and Install". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: The following procedure should be adopted in order to remove the valve springs when the cylinder head is installed to the engine. 1/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 3. Note: Ensure that the appropriate piston is at top dead center before the valve spring is removed. Failure to ensure that the piston is at top dead center may allow the valve to drop into the cylinder bore. Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. NOTICE Plug the apertures for the push rods in the cylinder head in order to prevent the entry of loose parts into the engine. Illustration 1 g01376301 2/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 4. Illustration 2 g01376302 NOTICE Ensure that the valve spring is compressed squarely or damage to the valve stem may occur. 1. Install Tooling (A) into position on the cylinder head in order to compress a valve spring (4) for the appropriate piston. 2. Use Tooling (A) in order to compress valve spring (4) and open valve (1) slightly. Note: Do not compress valve spring (4) so that valve spring retainer (3) touches valve stem seal (5). 3. Use Tooling (B) in order to rotate the crankshaft carefully, until the piston touches the valve. Note: Do not use excessive force to turn the crankshaft. The use of force can result in bent valve stems. 4. Continue to rotate the crankshaft and gradually release the pressure on Tooling (A) until the piston is at the top dead center position. The valve is now held in a position that allows valve spring (4) to be safely removed. Note: Valve springs must be replaced in pairs for the inlet valve or the exhaust valve of each cylinder. If all valve springs require replacement the procedure can be carried out on two cylinders at the same time. The procedure can be carried out on the following pairs of cylinders. 1 with 6, 2 with 5 and 3 with 4. Ensure that all of the valve springs are installed before changing from one pair of cylinders to another pair of cylinders. 3/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 5. NOTICE Do not turn the crankshaft while the valve springs are removed. 5. Apply sufficient pressure to Tooling (A) in order to allow removal of valve keepers (2). Note: Do not compress valve spring (4) so that valve spring retainer (3) touches valve stem seal (5). Remove valve keepers (2). 6. Slowly release the pressure on Tooling (A). 7. Remove valve spring retainer (3) and remove valve spring (4). 8. If necessary, remove valve stem seals (5). 9. Remove Tooling (A). Note: The installation of each set of valve springs (4) must be completed before attempting to remove the next set of valve springs (4). Installation Procedure Table 2 Required Tools Tool Part Number Part Description Qty A 9U-6195 Valve Spring Compressor 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 4/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 6. Illustration 3 g01376913 Illustration 4 g01376302 1. The outer face of the valve guides must be clean and dry before installing the valve stem seal (5). Install new valve stem seal (5) onto the valve guide. 2. Install valve spring (4) onto the cylinder head. Position valve spring retainer (3) on valve spring (4). 3. Install Tooling (A) in the appropriate position on the cylinder head in order to compress valve spring (4). Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment. 5/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 7. 4. Apply sufficient pressure to Tooling (A) in order to install valve keepers (2). Do not compress valve spring (4) so that valve spring retainer (3) touches valve stem seal (5). 5. Carefully release the pressure on Tooling (A). End By: a. Install the valve mechanism cover base. Refer to Disassembly and Assembly, "Valve Mechanism Cover Base - Remove and Install". b. Install the rocker shaft assembly. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Install". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Mon Feb 10 21:05:56 UTC+0800 2020 6/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 8. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D LN EXCAVATOR WBN Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine Disassembly and Assembly C6.4 Engine for Caterpillar Built Machines Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017 i06051426 Inlet and Exhaust Valves - Remove and Install SMCS - 1105-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 8S-6691 Cylinder Head Repair Stand 1 B 9U-6195 Valve Spring Compressor Gp 1 C 5P-1720 Seal Pick 1 Start By: a. Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. Note: Note the location and orientation of all components for assembly purposes. 1. Clean the bottom face of the cylinder head. Check the depth of the valves below the face of the cylinder head before the valve springs are removed. Refer to Specifications, "Cylinder Head Valves" for the correct dimensions. 1/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 9. 2. Place a temporary identification mark on the heads of the valves in order to identify the correct position. Illustration 1 g01376164 3. Use a suitable lifting device in order to position cylinder head (1) onto Tooling (A) with the valve springs upward. The weight of cylinder head (1) is approximately 113 kg (250 lb). Note: Ensure that cylinder head (1) is kept on a clean, soft surface in order to prevent damage to the machined face. Illustration 2 g01376174 2/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 10. Illustration 3 g01376184 Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. 4. Install Tooling (B) on cylinder head (1) in order to compress valve spring (5). NOTICE Ensure that the valve spring is compressed squarely or damage to the valve stem may occur. 5. Apply sufficient pressure to Tooling (B) in order to remove valve keepers (3). Do not compress the spring so that valve spring retainer (4) touches valve stem seal (6). 6. Slowly release the pressure on Tooling (B). 7. Remove valve spring retainer (4). Remove valve spring (5). Remove valve (2). 8. Use Tooling (C) in order to remove valve stem seal (6). 3/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 11. 9. Repeat Steps 4 through 7 for the remaining valves. Installation Procedure Table 2 Required Tools Tool Part Number Part Description Qty A 8S-6691 Cylinder Head Repair Stand 1 B 9U-6195 Valve Spring Compressor Gp 1 D 312-8755 Valve Stem Seal Installer 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 1. Clean all components of the cylinder head assembly. Ensure that all ports, all coolant passages, and all lubrication passages in the cylinder head are free from debris. Follow Steps 1.a through 1.d in order to inspect the components of the cylinder head assembly. Replace any components that are worn or damaged. a. Inspect the cylinder head for wear and for damage. Refer to Testing and Adjusting, "Cylinder Head Inspect". b. Inspect the valve seats for wear and for damage. Refer to Specifications, "Cylinder Head Valves" for further information. c. Inspect the valve guides for wear and for damage. Refer to Specifications, "Cylinder Head Valves" and Testing and Adjusting, "Valve Guide - Inspect" for further information. d. Inspect the valves for wear and for damage. Refer to Specifications, "Cylinder Head Valves ". e. Inspect valve springs (5) for damage and for the correct length. Refer to Specifications, "Cylinder Head Valves ". 4/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 12. Illustration 4 g01376184 Illustration 5 g01376926 2. Lubricate the stem of valve (2) with clean engine oil. Install valve (2) in the appropriate position in the cylinder head. 3. The outer face of the valve guides must be clean and dry before installing the valve stem seal (6). Use Tooling (C) in order to install new valve stem seal (6) onto the valve guide. 4. Install valve spring (5) onto the cylinder head. Position valve spring retainer (4) on valve spring (5). 5. Install Tooling (B) in the appropriate position on cylinder head (1) in order to compress valve spring (5). Improper assembly of parts that are spring loaded can cause bodily injury. 5/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 13. To prevent possible injury, follow the established assembly procedure and wear protective equipment. 6. Apply sufficient pressure to Tooling (B) in order to install valve keepers (3). Do not compress spring (5) so that valve spring retainer (4) touches valve stem seal (6). 7. Carefully release the pressure on Tooling (B). 8. Repeat Steps 2 through 7 for the remaining valves. End By: a. Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Mon Feb 10 21:06:52 UTC+0800 2020 6/6(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 14. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D LN EXCAVATOR WBN Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine Disassembly and Assembly C6.4 Engine for Caterpillar Built Machines Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017 i04625003 Inlet and Exhaust Valve Guides - Remove and Install SMCS - 1104-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 384-8861 Valve Guide Remover 1 B 138-7573 Link Bracket 4 C 1U-9200 Lever Puller Hoist 1 D 8S-6691 Cylinder Head Repair Stand 1 Start By: A. Remove the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install". B. Remove the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injector - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 1/4(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 15. NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products. Dispose of all fluids according to local regulations and mandates. Note: Refer to Special Instructions, SMHS7953-00, "Use of Valve Seat Insert Puller Group" to aid with the removal of the inlet and exhaust valve seats. Illustration 1 g01377064 1. Attach Tooling (B) , Tooling (C) , and a suitable lifting device to cylinder head (1) . Use Tooling (B) , Tooling (C) , and the suitable lifting device in order to turn over cylinder head (1) by 180° onto Tooling (D) . 2/4(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 16. Illustration 2 g01377121 2. Use Tooling (A) in order to remove valve guides (2) (not shown). Installation Procedure Table 2 Required Tools Tool Part Number Part Description Qty E 384-8862 Valve Guide Installer 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 3/4(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 17. Illustration 3 g01377130 1. Lubricate the outside of valve guides (2) (not shown) with clean engine oil. 2. Use Tooling (E) in order to install new valve guides (2) . Install valve guide (2) so that valve guide (2) protrudes 16.000 mm (0.6299 inch) above Surface (X) of cylinder head (1) . End By: a. Install the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injector - Install". b. Install the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Mon Feb 10 21:07:48 UTC+0800 2020 4/4(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 18. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D LN EXCAVATOR WBN Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine Disassembly and Assembly C6.4 Engine for Caterpillar Built Machines Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017 i04625001 Inlet and Exhaust Valve Seat Inserts - Remove and Install SMCS - 1103-010 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 166-7441 Valve Seat Extractor Tool 1 6V-4194 Valve Seat Extractor (1) 1 6V-4196 Valve Seat Extractor (1) 1 B 138-7573 Link Bracket 4 C 1U-9200 Lever Puller Hoist 1 D 8S-6691 Cylinder Head Repair Stand 1 ( 1 ) Component of the Valve Seat Extractor Tool Group. Start By: A. Remove the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install". B. Remove the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injectors - Remove". NOTICE Keep all parts clean from contaminants. 1/5(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 19. Contaminants may cause rapid wear and shortened component life. Note: Refer to Special Instructions, SMHS7953-00, "Use of Valve Seat Insert Puller Group" to aid with the removal of the inlet and exhaust valve seats. Illustration 1 g01377064 1. Attach Tooling (B ) , Tooling (C) , and a suitable lifting device to cylinder head (1) . Use Tooling (B ) , Tooling (C) , and the suitable lifting device in order to turn over cylinder head (1) by 180° onto Tooling (D) . 2/5(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 20. Illustration 2 g01376571 2. Use the valve seat grinder of Tooling (A) in order to notch the valve seat. Illustration 3 g01376578 3. Use the valve seat extractor of Tooling (A) to remove the inlet and exhaust valve seats. 4. Clean the valve seat in the cylinder head. Remove any rough areas from the valve seat in the cylinder head. 5. Repeat Steps 2 through 4 for the remaining inlet valve seat inserts and exhaust valve seat inserts. Installation Procedure Table 2 Required Tools Tool Part Number Part Description Qty E 384-8859 Valve Seat Installer 1 F 384-8860 Valve Seat Installer 1 NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. 3/5(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 21. Illustration 4 g01377071 Typical Example 1. Lower the temperature of the new inlet valve seat inserts (2) . Use Tooling (E) in order to install a new inlet valve seat insert (2) (not shown) in the cylinder head. Illustration 5 g01376588 Typical Example 2. Lower the temperature of new exhaust valve seat inserts (3) . Use Tooling (E) and Tooling (F) in order to install the new exhaust valve seat insert (3) (not shown) in the cylinder head. Note: The temperature of exhaust valve seat insert (3) is lowered in order to ease the installation of exhaust valve seat insert (3) . 3. Repeat Step 1 and 2 for the remaining inlet valve seat inserts and exhaust valve seat inserts. End By: a. Install the inlet and exhaust valves. Refer to Disassembly and Assembly, "Inlet and Exhaust Valves - Remove and Install". b. Install the electronic unit injectors. Refer to Disassembly and Assembly, "Electronic Unit Injectors - Install". 4/5(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 22. Thank you very much for your reading. Please Click Here. Then Get COMPLETE MANUAL. NO WAITING NOTE: If there is no response to click on the link above, please download the PDF document first and then click on it.
  • 23. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D LN EXCAVATOR WBN Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine Disassembly and Assembly C6.4 Engine for Caterpillar Built Machines Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017 i02746253 Engine Oil Cooler - Remove SMCS - 1378-011 Removal Procedure Start By: a. Remove the fuel injection pump. Refer to Disassembly and Assembly, "Fuel Injection Pump - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products. Dispose of all fluids according to local regulations and mandates. 1/2(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 24. Illustration 1 g01375410 1. Disconnect harness assembly (1). 2. Remove bolts (2) and remove engine oil cooler (3). Remove gasket (4) (not shown) from the engine cylinder block. Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Mon Feb 10 21:09:39 UTC+0800 2020 2/2(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 25. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D LN EXCAVATOR WBN Configuration: 320D LN Excavator WBN00001-UP (MACHINE) POWERED BY C6.4 Engine Disassembly and Assembly C6.4 Engine for Caterpillar Built Machines Media Number -KENR8106-09 Publication Date -01/10/2017 Date Updated -18/10/2017 i02746254 Engine Oil Cooler - Disassemble SMCS - 1378-015 Disassembly Procedure Start By: a. Remove the engine oil cooler. Refer to Disassembly and Assembly, "Engine Oil Cooler - Remove". NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products. Dispose of all fluids according to local regulations and mandates. Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly procedures on a clean work surface. Keep components covered and protected at all times. 1/2(W) w 2020/2/10 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...