Caterpillar Cat 318B LN Excavator (Prefix 3LR) Service Repair Manual (3LR00001 and up).pdf

Service Repair Manual
Models
318B 318B L 318B LN Excavator

Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 318B EXCAVATOR 3LR
Configuration: 318B L & 318B LN Excavators 3LR00001-UP (MACHINE) POWERED BY 3046 Engine
Disassembly and Assembly
3046 Engine For Caterpillar Built Machines
Media Number -SENR6458-05 Publication Date -01/04/2004 Date Updated -22/04/2004
i02063403
Cylinder Head - Install
SMCS - 1100-012
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9U-7995 Guide Pin 2
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

Illustration 1 g00560297
1. Clean the surfaces of the cylinder head and the cylinder block that are in contact with each
other. Ensure that the surfaces are clean and dry. Install a new, dry cylinder head gasket (3)
on the cylinder block.
Note: Do not use any sealant or gasket adhesive on the cylinder head gasket .
2. Install Tool (A) (not shown) on the cylinder block in order to install the cylinder head.
3. Attach a hoist to the cylinder head lifting brackets and install the cylinder head in position
on the cylinder block. The weight of the cylinder head assembly is 60 kg (132 lb).
4. Remove Tool (A) .
5. Apply 6V-4876 Lubricant to all of the threads and thrust faces of cylinder head bolts (1) .
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Cylinder Head Tightening Sequence
6. Install cylinder head bolts (1) and tighten all of the bolts (1 through 25) in a numerical order
according to the cylinder head tightening sequence. Tighten cylinder head bolts (1) to a
torque of 118 ± 5 N·m (87 ± 4 lb ft).
7. If necessary, install oil tube assembly (dipstick) and install bolt (2) .
End By:
a. Install the fuel injector nozzles. Refer to Disassembly and Assembly, "Fuel Injection
Nozzles - Install".
b. Install the glow plugs. Refer to Disassembly and Assembly, "Glow Plugs - Remove and
Install".
c. Install the rocker shaft and pushrods. Refer to Disassembly and Assembly, "Rocker Shaft
and Pushrods - Install".
d. Install the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Install".
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All Rights Reserved.
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Sun Nov 29 14:10:47 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
i01033379
Lifter Group - Remove and Install
SMCS - 1209-010
Removal Procedure
Start By:
A. Remove the camshaft. Refer to Disassembly and Assembly, "Camshaft - Remove and
Install".
NOTICE
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1. Use a magnet to remove valve lifter (1), as shown. Put identification marks on the valve
lifters for installation purposes.
2. Repeat Step 1 for the remainder of the valve lifters.
NOTICE
1. Put 8T-2998 Lubricant on valve lifter (1) prior to installation. Install valve lifter (1) in the
original location in the cylinder block.
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2. Repeat Step 1 for the remainder of the valve lifters.
End By: Install the camshaft. Refer to Disassembly and Assembly, "Camshaft - Remove and
Install".
Sun Nov 29 14:11:46 UTC+0800 2020
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
i01597409
Camshaft - Remove and Install
SMCS - 1210-010
Removal Procedure 1
Table 1
Required Tools
A 1P-2320 Combination Puller 1
C 1P-2321 Combination Puller 1
9S-9153 Puller Jaws 3
Start By:
A. Remove the timing gear cover. Refer to Disassembly and Assembly, "Housing (Front) -
Remove".
B. Remove the rocker shaft assembly and the pushrods. Refer to Disassembly and Assembly,
"Rocker Shaft and Pushrod - Remove".
C. Remove the oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and
Install".
Note: The engine oil pan is facing in the up direction in order to retain the lifters in position for
this procedure.
NOTICE
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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, "Caterpillar Tools and Shop
Products Guide" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
Note: Ensure that the marks on the timing gears are in alignment. Align the fuel injection drive
gear with the "33" mark with the "3" mark on the idler gear. Make an alignment of the "2" mark
on the camshaft gear with the "22" mark on the idler gear. Align the "1" mark on the crankshaft
gear with the "11" mark on the idler gear. The No. 1 cylinder is at the top center position when
these marks are in alignment.
1. Rotate the engine at 180 degrees.
2. Use Tool (A) to remove bearing (1) from the front of camshaft gear (2) .
Note: This step is necessary only if the camshaft gear is equipped with a bearing.
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NOTICE
Do not damage the lobes or the bearings when the camshaft is removed
or installed.
3. Position camshaft gear (2) so that the gear's slots align from the top to the bottom. Remove
two bolts (3) and the washers that hold thrust plate (4). Carefully remove the camshaft, the
thrust plate and the camshaft gear as an assembly.
4. Remove the 12 valve lifters. Refer to Disassembly and Assembly, "Lifter Group - Remove
and Install".
5. Use tool (C) to remove camshaft gear (2) from camshaft (5). Remove thrust plate (4) .
Installation Procedure 1
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Note: In this installation procedure, the engine needs to remain in the upside-down position in
order to keep the lifters in position while the camshaft is installed.
NOTICE
Note: During installation, ensure that camshaft (4) is clean and lubricate all of the
components with clean engine oil.
1. Install thrust plate (4) onto camshaft (5) .
Always wear protective gloves when handling parts that have been
heated.
2. Heat camshaft gear (2) in an oven to a maximum temperature of 150 °C (302 °F) and install
camshaft gear (2) onto camshaft (5) .
3. Install the 12 valve lifters. Refer to Disassembly and Assembly, "Lifter Group - Remove
and Install".
Note: During installation, ensure that the marks on the timing gears are in alignment. Align
the fuel injection drive gear with the "33" mark with the "3" mark on the idler gear. Make an
alignment of the "2" mark on the camshaft gear with the "22" mark on the idler gear. Align
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the "1" mark on the crankshaft gear with the "11" mark on the idler gear. The No. 1 cylinder
is at the top center position when these marks are in alignment.
4. Carefully install the camshaft assembly into the original location in the cylinder block.
Note: Caution must be used when the camshaft is installed in order to not damage the
camshaft lobe or the camshaft bearings.
5. Position camshaft gear (2) so that the gear's slots align from the top to the bottom. Install
two bolts (3) and the washers that hold thrust plate (4). Tighten bolts (3) to a torque of 10 to
13 N·m (7 to 10 lb ft).
6. If necessary, install the bearing onto the front of the camshaft gear.
End By:
a. Install the oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and
Install".
b. Install the rocker shaft assembly and the pushrods. Refer to Disassembly and Assembly,
"Rocker Shaft and Pushrod - Install".
c. Install the timing gear cover. Refer to Disassembly and Assembly, "Housing (Front) -
Install".
Removal Procedure 2
Table 2
Required Tools
A 1P-2320 Combination Puller 1
B 1U-7638 Magnetic Holding Tools 12
C 1P-2321 Combination Puller 1
9S-9153 Puller Jaws 3
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Start By:
A. Remove the timing gear cover. Refer to Disassembly and Assembly, " Housing (Front) -
Remove".
B. Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head -
Remove".
Note: This removal procedure is done with the engine in the upright position and the valve lifters
left in the cylinder block.
NOTICE
NOTICE
performance of inspection, maintenance, testing, adjusting and repair
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop
Products Guide" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
6/10
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The engine is rotated at 180 degrees.
1. Use Tool (A) to remove bearing (1) from the front of camshaft gear (2) .
Note: This step is necessary only if the camshaft gear is equipped with a bearing.
2. Install Tool (B) in order to hold the 12 valve lifters.
Note: Make sure that Tool (B) is holding the lifters as far up in cylinder block (6) as
possible.
Note: Be careful not to dislodge the valve lifters from Tools (B) during removal of the
camshaft.
NOTICE
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Do not damage the lobes or the bearings when the camshaft is removed
or installed.
3. Position camshaft gear (2) so that the gear's slots align from the top to the bottom. Remove
two bolts (3) and the washers that hold thrust plate (4). Carefully remove the camshaft, the
thrust plate and the camshaft gear as an assembly from cylinder block (6) .
4. Use tool (C) to remove camshaft gear (2) from camshaft (5). Remove thrust plate (4) .
Installation Procedure 2
Table 3
Required Tools
B 1U-7638 Magnetic Holding Tools 12
Note: This installation procedure is done with the engine in the upright position and the valve
lifters left in the cylinder block.
NOTICE
Note: During installation, ensure that camshaft (4) is clean and lubricate all of the
components with clean engine oil.
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1. Install thrust plate (4) onto camshaft (5). Heat camshaft gear (2) to a maximum temperature
of 150 °C (302 °F) and install camshaft gear (2) onto camshaft (4) .
Note: During installation, ensure that the marks on the timing gears are in alignment. Align
the fuel injection drive gear with the "33" mark with the "3" mark on the idler gear. Make an
alignment of the "2" mark on the camshaft gear with the "22" mark on the idler gear. Align
the "1" mark on the crankshaft gear with the "11" mark on the idler gear. The No. 1 cylinder
is at the top center position when these marks are in alignment.
2. Carefully install the camshaft assembly into the original location in the cylinder block.
Note: Caution must be used when the camshaft is installed in order to not damage the
camshaft lobe or the camshaft bearings.
Note: Make sure that Tool (B ) is holding the lifters as far up in cylinder block (6) as
possible.
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3. Position camshaft gear (2) so that the gear's slots align from the top to the bottom. Install
two bolts (3) and the washers that hold thrust plate (4). Tighten bolts (3) to a torque of 10 to
13 N·m (7 to 10 lb ft).
4. If necessary, install the bearing onto the front of the camshaft gear.
End By:
a. Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install".
b. Install the timing gear cover. Refer to Disassembly and Assembly, "Housing (Front) -
Install".
Sun Nov 29 14:12:46 UTC+0800 2020
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318B L & 318B LN Excavators 3LR00001-UP (MACHINE) POWERED BY 3046 ...
2020/11/29

Shutdown SIS
Previous Screen
Product: EXCAVATOR
i04990496
Camshaft Bearings - Remove and Install
SMCS - 1211-010
Removal Procedure
Table 1
Required Tools
A
8S-2241 Camshaft Bearing Tool Group 1
8H-0684 Ratchet Wrench 1
Start By:
A. Remove the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing -
Remove and Install".
B. Remove the camshaft. Refer to Disassembly and Assembly, "Camshaft - Remove and
Install".
NOTICE
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1. Remove plug (1) from the cylinder block.
2. Use Tool (A) in order to remove the camshaft bearings from the cylinder block.
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Note: Refer to the instructions of the 8S-2241 Camshaft Bearing Tool Group for the proper
procedure.
Table 2
Required Tools
A
8S-2241 Camshaft Bearing Tool Group 1
8H-0684 Ratchet Wrench 1
NOTICE
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1. Use Tool (A) in order to install the camshaft bearings into the cylinder block. Ensure that
the oil hole of the camshaft bearings are in alignment with the oil ports in the engine block.
Note: Refer to the instructions of the 8S-2241 Camshaft Bearing Tool Group for the proper
procedure.
2. Install plug (1) into the cylinder block. Use Loctite 596 .
End By:
a. Install the camshaft. Refer to Disassembly and Assembly, "Camshaft - Remove and Install".
b. Install the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing -
Remove and Install".
Sun Nov 29 14:13:45 UTC+0800 2020
4/4
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
i05007631
Engine Oil Pan - Remove and Install
SMCS - 1302-010
Removal Procedure
NOTICE
NOTICE
performance of inspection, maintenance, testing, adjusting, and repair
containing fluids.
Refer to Special Publication, NENG2500, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat products.
1/5
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1. Remove oil pan drain plug (3) and drain the engine oil from engine oil pan (2) .
2. Install oil pan drain plug (3) . Tighten the oil pan drain plug to a torque of 78 ± 5 N·m (57 ±
4 lb ft).
3. Remove oil tube assembly (5) .
4. Remove 30 bolts (1) and the washers from engine oil pan (2) . Remove engine oil pan (2)
and gasket (4) .
Note: A liquid gasket may be factory installed in place of an oil pan gasket.
5. Remove two bolts (7) from engine oil suction tube (6) . Remove engine oil suction tube (6) .
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6. Check condition of O-ring seal (8) . If the O-ring seal is damaged, use a new part for
replacement.
Installation procedure
NOTICE
1. Install O-ring seal (8) on suction pipe (6) .
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2. Position engine oil suction tube (6) . Install two bolts (7) in order to secure the engine oil
suction tube .
3. Clean engine oil pan (2) .
Note: Ensure that the engine oil pan and all of the mating surfaces are free of oil and gasket
material.
4. Install gasket (4) , engine oil pan (2) , bolts (1) and the washers. Tighten the bolts to a
torque of 10 to 13 N·m (7 to 10 lb ft).
Note: Loctite 5127 may be used instead of gasket (4) . Both contact surfaces must be
completely free of oil. Apply gasket material on the cylinder block on the inside of the bolt
hole pattern in a continuous bead in order to help prevent an oil leak.
5. Install oil tube assembly (5) .
6. Fill the crankcase with engine oil to the correct level. Refer to the proper Operation and
Maintenance Manual for the correct engine oil and the correct filling procedure.
Sun Nov 29 14:14:44 UTC+0800 2020
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Caterpillar Cat 318B LN Excavator (Prefix 3LR) Service Repair Manual (3LR00001 and up).pdf

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Caterpillar Cat 318B LN Excavator (Prefix 3LR) Service Repair Manual (3LR00001 and up).pdf