Caterpillar Cat 317B L Excavator (Prefix 6DZ) Service Repair Manual (6DZ00001 and up)

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Product EXCAVATOR Model 317B LN EXCAVATOR
6DZ Configuration 317B L 317B LN Excavators
6DZ00001-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
i01032735

• Cylinder Head - Remove
• SMCS - 1100-011
• Removal Procedure
• Start By
• Remove the turbocharger. Refer to Disassembly and
  Assembly, "Turbocharger - Remove".
• Remove the rocker shaft and pushrods. Refer to
  Disassembly and Assembly, "Rocker Shaft and
  Pushrods - Remove".
• Remove the fuel injection nozzles in order to
  protect from damage. Refer to Disassembly
• and Assembly, "Fuel Injection Nozzles - Remove".
• Remove the glow plugs in order to protect from
  damage. Refer to Disassembly and Assembly, "Glow
  Plugs - Remove and Install".
• 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 machine. Be prepared to collect the fluid
with suitable containers before opening any
compartment or disassembling any component
containing fluids.
2
Refer to Special Publication, NENG2500,
"Caterpillar Tools and Shop Products Guide", for
tools and supplies suitable to collect and
contain fluids in Caterpillar machines. Dispose
of all fluids according to local regulations and
mandates.
Illustration 1 g00562585 1. If necessary, remove
bolt (2) and remove oil tube assembly (dipstick).
Illustration 2
g00531679
Cylinder Head Tightening Sequence 2. Gradually
remove 25 cylinder head bolts (1) in reverse
order of the tightening sequence.
3
Note Do not use a pry bar to separate the
cylinder head from the engine block.
Illustration 3 g00560287 3. Attach a hoist to
the cylinder head lifting brackets and remove the
cylinder head from the cylinder block. The
weight of the cylinder head assembly is 60 kg
(132 lb). Note Place the cylinder head on a
surface that will not damage the face of the
cylinder head.
Illustration 4
g00560297
4. Remove the cylinder head gasket (3) .
Copyright 1993 - 2020 Caterpillar Inc. All
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Product EXCAVATOR Model 317B LN EXCAVATOR
6DZ Configuration 317B L 317B LN Excavators
6DZ00001-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 Installat
ion Procedure Table 1
Required Tools Required Tools Required Tools 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.
5

• Illustration 1 g00560297
• 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 .
• Install Tool (A) (not shown) on the cylinder
  block in order to install the cylinder head.

• Illustration 2 g00560287
• 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).
• Remove Tool (A) .
• Apply 6V-4876 Lubricant to all of the threads and
  thrust faces of cylinder head bolts (1) .

Illustration 3
g00562585
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Illustration 4
g00531679

• Cylinder Head Tightening Sequence
• 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 Nm (87 4 lb ft).
• If necessary, install oil tube assembly
  (dipstick) and install bolt (2) .
• End By
• Install the fuel injector nozzles. Refer to
  Disassembly and Assembly, "Fuel Injection
  Nozzles - Install".
• Install the glow plugs. Refer to Disassembly and
  Assembly, "Glow Plugs - Remove and Install".
• Install the rocker shaft and pushrods. Refer to
  Disassembly and Assembly, "Rocker Shaft and
  Pushrods - Install".
• Install the turbocharger. Refer to Disassembly
  and Assembly, "Turbocharger - Install".

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Licensees.
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Product EXCAVATOR Model 317B LN EXCAVATOR
6DZ Configuration 317B L 317B LN Excavators
6DZ00001-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
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 Keep
all parts clean from contaminants. Contaminants
may cause rapid wear and shortened component life.
Illustration 1
g00532246
9

• Illustration 2 g00532061
• Use a magnet to remove valve lifter (1), as
  shown. Put identification marks on the valve
  lifters for installation purposes.
• Repeat Step 1 for the remainder of the valve
  lifters.

Installation Procedure NOTICE Keep all parts
clean from contaminants. Contaminants may cause
rapid wear and shortened component life.
Illustration 3 g00532061 1. Put 8T-2998
Lubricant on valve lifter (1) prior to
installation. Install valve lifter (1) in the
original location in the cylinder block.
10
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".
Copyright 1993 - 2020 Caterpillar Inc. All
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Licensees.
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Product EXCAVATOR Model 317B LN EXCAVATOR
6DZ Configuration 317B L 317B LN Excavators
6DZ00001-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
i01597409
Camshaft - Remove and Install SMCS -
1210-010 Removal Procedure 1 Table 1
Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
A 1P-2320 Combination Puller 1
C 1P-2321 Combination Puller 1
C 9S-9153 Puller Jaws 3

• Start By
• Remove the timing gear cover. Refer to
  Disassembly and Assembly, "Housing (Front) -
  Remove".
• Remove the rocker shaft assembly and the
  pushrods. Refer to Disassembly and Assembly,
  "Rocker Shaft and Pushrod - Remove".
• 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
• Keep all parts clean from contaminants.
• Contaminants may cause rapid wear and shortened
  component life.

12
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.
Illustration 1 g00532179 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.
13
Illustration 2
g00532382
NOTICE Do not damage the lobes or the bearings
when the camshaft is removed or installed.

1. 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.
2. Remove the 12 valve lifters. Refer to Disassembly
   and Assembly, "Lifter Group - Remove and
   Install".

Illustration 3 g00532384 5. Use tool (C) to
remove camshaft gear (2) from camshaft (5).
Remove thrust plate (4) .
Installation Procedure 1
14
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 Keep all parts
clean from contaminants. Contaminants may cause
rapid wear and shortened component life.
Note During installation, ensure that camshaft
(4) is clean and lubricate all of the components
with clean engine oil.
Illustration 4
g00532385
1. Install thrust plate (4) onto camshaft (5) .
Always wear protective gloves when handling parts
that have been heated.

• Heat camshaft gear (2) in an oven to a maximum
  temperature of 150 C (302 F) and install
  camshaft gear (2) onto camshaft (5) .
• 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

15
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.

• Illustration 5 g00532382
• 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 Nm (7 to 10 lb ft).
• If necessary, install the bearing onto the front
  of the camshaft gear.
• End By
• Install the oil pan. Refer to Disassembly and
  Assembly, "Engine Oil Pan - Remove and Install".
• Install the rocker shaft assembly and the
  pushrods. Refer to Disassembly and Assembly,
• "Rocker Shaft and Pushrod - Install".
• Install the timing gear cover. Refer to
  Disassembly and Assembly, "Housing (Front) -
  Install".
• Removal Procedure 2
• Table 2

Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
A 1P-2320 Combination Puller 1
B 1U-7638 Magnetic Holding Tools 12
C 1P-2321 Combination Puller 1
C 9S-9153 Puller Jaws 3
16

• Start By
• Remove the timing gear cover. Refer to
  Disassembly and Assembly, " Housing (Front) -
  Remove".
• 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
• 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, "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.
17
Illustration 6
g00532179
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.
Illustration 7 g00534616 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.
Illustration 8 g00534473 Note Be careful not to
dislodge the valve lifters from Tools (B) during
removal of the camshaft. NOTICE
18
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) .
Illustration 9 g00532384 4. Use tool (C) to
remove camshaft gear (2) from camshaft (5).
Remove thrust plate (4) . Installation Procedure
2 Table 3
Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
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 Keep
all parts clean from contaminants. Contaminants
may cause rapid wear and shortened component life.
Note During installation, ensure that camshaft
(4) is clean and lubricate all of the components
with clean engine oil.
19

• Illustration 10 g00532385
• 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.
• 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.

Illustration 11 g00534616 Note Make sure that
Tool (B ) is holding the lifters as far up in
cylinder block (6) as possible.
20

• Illustration 12 g00534473
• 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 Nm (7 to 10 lb ft).
• If necessary, install the bearing onto the front
  of the camshaft gear.
• End By
• Install the cylinder head. Refer to Disassembly
  and Assembly, "Cylinder Head - Install".
• Install the timing gear cover. Refer to
  Disassembly and Assembly, "Housing (Front) -
  Install".

Copyright 1993 - 2020 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Wed Dec 9 230120 UTC0800 2020
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Product EXCAVATOR Model 317B LN EXCAVATOR
6DZ Configuration 317B L 317B LN Excavators
6DZ00001-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
i04990496
Camshaft Bearings - Remove and Install SMCS -
1211-010 Removal Procedure Table 1
Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
A 8S-2241 Camshaft Bearing Tool Group 1
A 8H-0684 Ratchet Wrench 1

• Start By
• Remove the flywheel housing. Refer to Disassembly
  and Assembly, "Flywheel Housing - Remove and
  Install".
• Remove the camshaft. Refer to Disassembly and
  Assembly, "Camshaft - Remove and
• Install".
• NOTICE
• Keep all parts clean from contaminants.
• Contaminants may cause rapid wear and shortened
  component life.

22
Illustration 1
g00533094
1. Remove plug (1) from the cylinder block.
Illustration 2
g00533095
Illustration 3 g00533096 2. Use Tool (A) in
order to remove the camshaft bearings from the
cylinder block.
23
Note Refer to the instructions of the 8S-2241
Camshaft Bearing Tool Group for the proper
procedure. Installation Procedure Table 2
Required Tools Required Tools Required Tools Required Tools
Tool Part Number Part Description Qty
A 8S-2241 Camshaft Bearing Tool Group 1
A 8H-0684 Ratchet Wrench 1
NOTICE Keep all parts clean from
contaminants. Contaminants may cause rapid wear
and shortened component life.
Illustration 4
g00533095
24
Illustration 5 g00533096 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.

• Illustration 6 g00533094
• Install plug (1) into the cylinder block. Use
  Loctite 596 .
• End By
• Install the camshaft. Refer to Disassembly and
  Assembly, "Camshaft - Remove and Install".
• Install the flywheel housing. Refer to
  Disassembly and Assembly, "Flywheel Housing -
  Remove and Install".

Copyright 1993 - 2020 Caterpillar Inc. All
Rights Reserved. Private Network For SIS
Licensees.
Wed Dec 9 230215 UTC0800 2020
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Previous Screen
Product EXCAVATOR Model 317B LN EXCAVATOR
6DZ Configuration 317B L 317B LN Excavators
6DZ00001-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
i05007631
Engine Oil Pan - Remove and Install SMCS -
1302-010 Removal Procedure 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.
26

• Illustration 1 g00560680
• Remove oil pan drain plug (3) and drain the
  engine oil from engine oil pan (2) .
• Install oil pan drain plug (3) . Tighten the oil
  pan drain plug to a torque of 78 5 Nm (57 4
  lb ft).
• Remove oil tube assembly (5) .
• 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.

Illustration 2 g00538955 5. Remove two bolts (7)
from engine oil suction tube (6) . Remove engine
oil suction tube (6) .
27
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Illustration 3 g00538957 6. Check condition of
O-ring seal (8) . If the O-ring seal is damaged,
use a new part for replacement.
Installation procedure NOTICE Keep all parts
clean from contaminants. Contaminants may cause
rapid wear and shortened component life.
Illustration 4 g00538957 1. Install O-ring seal
(8) on suction pipe (6) .
30
Illustration 5 g00538955 2. Position engine oil
suction tube (6) . Install two bolts (7) in order
to secure the engine oil suction tube .
Illustration 6
g00560680

• 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.
• Install gasket (4) , engine oil pan (2) , bolts
  (1) and the washers. Tighten the bolts to a
  torque of 10 to 13 Nm (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.
• Install oil tube assembly (5) .
• 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.

Wed Dec 9 230311 UTC0800 2020
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Copyright 1993 - 2020 Caterpillar Inc. All
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Licensees.
32
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manual if required, please enter the following
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