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Service Repair Manual
Models
320D2 Excavator
Shutdown SIS
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Product: EXCAVATOR
Model: 320D2 EXCAVATOR XBB
Configuration: 320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly
323D2 Excavator Machine Systems
Media Number -UENR3338-02 Publication Date -01/07/2017 Date Updated -19/07/2017
i07070474
Track - Connect
SMCS - 4170-077
Connection Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 260-9412 Chain As 1
B 5P-6214 Track Block Assembly 1
C
350-7768 Electric Hydraulic Pump Gp 1
350-7769 Electric Hydraulic Pump Gp 1
8T-0820 Hydraulic Pressure Gauge 1
3B-7722 Pipe Bushing 2
1P-2376 Quick Connect Coupler 2
1P-2377 Plug As 2
6D-7726 Hose As 2
5P-2379 Track Press Tool Gp 1
8S-7172 Double Acting Cylinder 1
8S-9903 Track Press Rollover Gp 1
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Illustration 1 g01167157
Illustration 2 g01167155
1. Use Tooling (A) to raise the track into position.
2. Install pin (4) and cotter pin (3).
Note: If you cannot install pin (4) with a suitable hammer, use Tooling (C) to install pin (4).
Illustration 3 g01167154
3. Install track shoe (2) and bolts (1). Refer to Table 2 for the correct torque specification for
bolts (1).
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Table 2
Torque Table
Machine Model Torque Specification
313, 315, 320, 323, 324, 325, 326,
and 329(1)
400 ± 40 N·m (295 ± 30 lb ft) turn an additional
120° ± 5°
330 and 336(2) 700 ± 40 N·m (516 ± 30 lb ft) turn an additional
120° ± 5°
(1)
D series, D2 series, and E series
(2)
D series, D2 series, and E series
Illustration 4 g01174955
4. Remove Tooling (B) from both ends of the track assembly.
5. Adjust the track tension. Refer to Operation and Maintenance Manual, "Track Adjust".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
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Previous Screen
Product: EXCAVATOR
Model: 320D2 EXCAVATOR XBB
Configuration: 320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly
323D2 Excavator Machine Systems
Media Number -UENR3338-02 Publication Date -01/07/2017 Date Updated -19/07/2017
i02414071
Front Idler and Recoil Spring - Remove
SMCS - 4158-011; 4159-011
Removal Procedure
Start By:
a. Separate the track assemblies. Refer to Disassembly and Assembly, "Track - Separate".
Illustration 1 g00708892
The spring of the recoil spring assembly is compressed under several
tons of force.
Do not attempt to compress or release the tension of the spring with the
nut on the end of the retaining rod.
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Damaged threads on the retaining rod or nut can cause the assembly to
come apart with force, resulting in injury or death.
1. Use a pry bar and move the front idler (1) and the recoil spring partially out of the track
roller frame. Attach a suitable lifting device to front idler (1), as shown.
Illustration 2 g00708894
2. Once front idler (1) and the recoil spring (2) is partially out of the track frame reposition the
suitable lifting device in order to support recoil spring (2) and front idler (1).
3. Slide front idler (1) and recoil spring (2) out of the track roller frame as one unit. The
weight of front idler (1) and recoil spring (2) is approximately 213 kg (470 lb).
4. Leave the suitable lifting device attached and turn the front idler and recoil spring (2)
around 180 degrees.
Illustration 3 g01206689
5. Install the front idler partially into the track frame. The front idler and recoil spring (2) will
be supported by the track frame.
6. Reposition the suitable lifting device in order to support recoil spring (2).
7. Remove bolts (3).
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8. Separate recoil spring (2) from the front idler. The front idler will be supported by the track
frame.
9. The weight of the recoil spring (2) is approximately 100 kg (220 lb).
Illustration 4 g00708896
10. Attach a suitable lifting device to front idler (1). The weight of front idler (1) is
approximately 113 kg (250 lb).
11. Remove front idler (1) from the track roller frame.
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 320D2 EXCAVATOR XBB
Configuration: 320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly
323D2 Excavator Machine Systems
Media Number -UENR3338-02 Publication Date -01/07/2017 Date Updated -19/07/2017
i03924569
Front Idler and Recoil Spring - Install
SMCS - 4158-012; 4159-012
Installation Procedure
1. Be sure that the mating surfaces on the front support for the recoil spring are clean and free
of dirt and debris prior to assembly. Be sure that the mating surfaces on the two bearings for
the front idler are clean and free of dirt and debris prior to assembly.
Illustration 1 g00708896
2. Attach a suitable lifting device to the front idler (1) . The weight of front idler (1) is
approximately 109 kg (240 lb). Install front idler (1) in the track roller frame.
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Illustration 2 g01206689
3. Attach a suitable lifting device to recoil spring (2) . The weight of recoil spring (2) is
approximately 100 kg (220 lb). Position the recoil spring (2) and install bolts (3) .
Illustration 3 g00708894
4. Fasten a suitable lifting device to front idler (1) and recoil spring (2) . The combined weight
of the front idler (1) and recoil spring (2) is approximately 213 kg (470 lb).
5. Turn the front idler and the recoil spring around 180 degrees.
6. Slide the front idler (1) and recoil spring (2) partially into the track roller frame.
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Illustration 4 g00708958
7. Remove the suitable lifting device from the recoil spring. Keep the suitable lifting device
around front idler (1) .
8. Use a pry bar in order to slide front idler (1) into the final position inside the track roller
frame.
End By: Connect the track assemblies. Refer to Disassembly and Assembly, "Track - Connect".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 320D2 EXCAVATOR XBB
Configuration: 320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly
323D2 Excavator Machine Systems
Media Number -UENR3338-02 Publication Date -01/07/2017 Date Updated -19/07/2017
i06889712
Recoil Spring - Disassemble
SMCS - 4158-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description QTY
A 4C-9540 Recoil Spring Bench 1
B
146-2457 Hydraulic Power Supply Gp 1
223-3506 Hydraulic Cylinder and Lines Gp 1
C 8S-9971 Adapter 1
Table 2
Required Sockets
Thread Socket Part Number
M36 138–5189
M42
4C-4467
193–8100 (1)
M48
5S-6081
FT-3033 (2)
371–1080 (3)
M64 5S-6086
(1)
Used with M42 flat sided nut.
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(2)
Used with M48 flat sided nut that is 54 mm (2.13 inch) between the two flats.
(3)
Used with M48 flat sided nut that is 65 mm (2.56 inch) between the two flats.
Start By:
a. Remove the front idler and the recoil spring assembly.
The spring of the recoil spring assembly is compressed under several
tons of force.
Do not attempt to compress or release the tension of the spring with the
nut on the end of the retaining rod.
Damaged threads on the retaining rod or nut can cause the assembly to
come apart with force, resulting in injury or death.
1. Prior to disassembling the recoil spring assembly, make sure that Tooling (A) is on a level
surface.
2. Prior to disassembling the recoil spring thoroughly clean the outside surface.
Illustration 1 g00483426
3. Install Tooling (C) on Tooling (B), as shown.
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Illustration 2 g00494710
Illustration 3 g00483437
Note: Two adjustable supports (1), reaction plate (2), and movable plate (3) are part of
Tooling (A).
4. Adjust the spacing between reaction plate (2) and movable plate (3). The spacing is
approximately the same length as the recoil spring assembly (free length). Also, make sure
that two adjustable supports (1) are positioned between the reaction plate and the movable
plate, as shown. Level the two supports.
Note: The recoil spring assembly may be installed in Tooling (A) from the end. In this case,
reaction plate (2) must be removed. Then reinstall the reaction plate after the recoil spring
assembly is in place on two adjustable supports (1).
NOTICE
Do not remove the hoist from the recoil spring assembly until the unit
is leveled, centered and locked in the specified tooling.
5. The combined weight of the recoil spring assembly is approximately 116 kg (255 lb).
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6. Fasten a suitable lifting device to the recoil spring assembly. Put the recoil spring assembly
in position on two adjustable supports (1) in Tooling (A).
7. Adjust the two adjustable supports to align the centerline of the recoil spring assembly with
the centerline of Tooling (A).
Illustration 4 g00498760
The hoist has been removed from the recoil spring assembly to provide a better illustration of level gauge (4).
8. Put a level gauge (4) on the recoil spring assembly.
Illustration 5 g00498781
9. Reposition the recoil spring assembly until the recoil spring assembly is level. Reposition
the recoil spring assembly until the retaining rod and nut (6) are centered in the hole in
reaction plate (2).
10. The recoil spring assembly is leveled by moving adjustable supports (1) higher or lower.
After the recoil spring assembly is leveled and centered, install two pins (5) on the back side
of reaction plate (2), as shown.
11. Operate Tooling (B) to hold the recoil spring assembly in position between reaction plate
(2) and movable plate (3) (not shown). Make sure that the recoil spring assembly is level
and centered.
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Illustration 6 g00498784
12. Close covers (7) on Tooling (A). Use Tooling (B) to compress the recoil spring assembly
slightly.
Illustration 7 g02148287
Several tons of force are required to compress the recoil spring during
assembly.
Do not compress the spring assembly until the covers on the tooling have
been closed.
It is possible for the recoil spring to twist under load and come out of the
tooling resulting in injury or death.
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13. Through the opening in the end of Tooling (A), remove the socket head bolts and lock strip
(8) from the end of the retaining rod.
14. Remove nut (6). Refer to Table 2 for the correct socket part number. Release the force on
the recoil spring assembly.
15. Open the covers on Tooling (A). Attach a suitable lifting device to the recoil spring
assembly, and remove the recoil spring assembly from Tooling (A).
16. Separate the components of the recoil spring assembly. Remove support (12), spring (10),
support (9), and rod (11).
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
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Shutdown SIS
Previous Screen
Product: EXCAVATOR
Model: 320D2 EXCAVATOR XBB
Configuration: 320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine
Disassembly and Assembly
323D2 Excavator Machine Systems
Media Number -UENR3338-02 Publication Date -01/07/2017 Date Updated -19/07/2017
i06889768
Recoil Spring - Assemble
SMCS - 4158-016
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description QTY
A 4C-9540 Recoil Spring Bench 1
B
146-2457 Hydraulic Power Supply Gp 1
223-3506 Hydraulic Cylinder and Lines Gp 1
C 8S-9971 Adapter 1
E 9S-3263 Thread Lock Compound 1
Table 2
Required Sockets
Thread Socket Part Number
M36 138–5189
M42
4C-4467
193–8100 (1)
M48
5S-6081
FT-3033 (2)
371–1080 (3)
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M64 5S-6086
(1)
Used with M42 flat sided nut.
(2)
Used with M48 flat sided nut that is 54 mm (2.13 inch) between the two flats.
(3)
Used with M48 flat sided nut that is 65 mm (2.56 inch) between the two flats.
The spring of the recoil spring assembly is compressed under several
tons of force.
Do not attempt to compress or release the tension of the spring with the
nut on the end of the retaining rod.
Damaged threads on the retaining rod or nut can cause the assembly to
come apart with force, resulting in injury or death.
Note: Prior to assembling the recoil spring assembly, make sure that Tooling (A) is on a
level surface.
Illustration 1 g01157185
1. Check the condition of the threads on rod (11) and nut (6). If the threads are worn or
damaged, use new parts for replacement.
2. Assemble the recoil spring assembly loosely. Position spring (10) onto support (9). Install
rod (11) into support (9). Position support (12).
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Illustration 2 g00483426
3. Install Tooling (C) on Tooling (B).
Illustration 3 g00494710
Illustration 4 g00483437
Note: Two adjustable supports (1), reaction plate (2), and movable plate (3) are part of
Tooling (A).
4. Adjust the spacing between reaction plate (2) and movable plate (3) so that the spacing is
approximately the same length as the recoil spring assembly. Also, make sure that two
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adjustable supports (1) are positioned between the reaction plate and the movable plate, as
shown. Level the two supports.
Note: The recoil spring assembly may be installed in Tooling (A) from the end. In this case,
reaction plate (2) must be removed. Then reinstall the reaction plate after the recoil spring
assembly is in place on two adjustable supports (1).
NOTICE
Do not remove the hoist from the recoil spring assembly until the unit
is leveled, centered and locked in the specified tooling.
5. The combined weight of the recoil spring assembly is approximately 116 kg (255 lb).
6. Fasten a suitable lifting device to the recoil spring assembly. Put the recoil spring assembly
in position on two adjustable supports (1) in Tooling (A).
7. Adjust the two adjustable supports to align the centerline of the recoil spring assembly with
the centerline of Tooling (A).
Illustration 5 g00949740
The hoist has been removed from the recoil spring assembly to provide a better illustration of level gauge (4).
8. Operate Tooling (B) and guide the end of the recoil spring assembly through the hole in
reaction plate (2). Put a level gauge (4) on the recoil spring assembly. Make sure that the
recoil spring assembly is level and centered in Tooling (A). Remove the suitable lifting
device from the recoil spring assembly.
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Illustration 6 g00498784
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.
9. Close covers (7) on Tooling (A). Compress the recoil spring assembly with Tooling (B).
Illustration 7 g01157190
(X) Compressed length of the spring
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Illustration 8 g00498784
10. Open the covers on Tooling (A). Measure the compressed length of the recoil spring. The
compressed length is Dimension (X). Refer to Table 3 for the correct compressed spring
length.
Table 3
Recoil Spring Compressed Length
Model Dimension (X)
315D 448.0 mm (17.64 inch)
319D 550.0 mm (21.65 inch)
320D 550.0 mm (21.65 inch)
323D
550.0 mm (21.65 inch)
686.0 mm (27.01 inch)(1)
324D 606.0 mm (23.86 inch)
325C 551.0 mm (21.69 inch)
325D
686.0 mm (27.01 inch)
845.0 mm (33.27 inch)(2)
326D L 606.0 mm (23.86 inch)
328D 644.0 mm (25.35 inch)
329D 686.0 mm (27.01 inch)
330D
644.0 mm (25.35 inch)
785.0 mm (30.91 inch)(3)
336D
644.0 mm (25.35 inch)
785 mm (30.91inch)(4)
(1)
This Dimension is for (S/N: DKW1-Up; SED1-Up; NES1-Up)
(2)
This Dimension is for (S/N: GBR1-Up; MCL1-Up)
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Caterpillar Cat 320D2 Excavator (Prefix XBB) Service Repair Manual (XBB00001 and up).pdf

  • 2. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D2 EXCAVATOR XBB Configuration: 320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine Disassembly and Assembly 323D2 Excavator Machine Systems Media Number -UENR3338-02 Publication Date -01/07/2017 Date Updated -19/07/2017 i07070474 Track - Connect SMCS - 4170-077 Connection Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 260-9412 Chain As 1 B 5P-6214 Track Block Assembly 1 C 350-7768 Electric Hydraulic Pump Gp 1 350-7769 Electric Hydraulic Pump Gp 1 8T-0820 Hydraulic Pressure Gauge 1 3B-7722 Pipe Bushing 2 1P-2376 Quick Connect Coupler 2 1P-2377 Plug As 2 6D-7726 Hose As 2 5P-2379 Track Press Tool Gp 1 8S-7172 Double Acting Cylinder 1 8S-9903 Track Press Rollover Gp 1 1/3(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 3. Illustration 1 g01167157 Illustration 2 g01167155 1. Use Tooling (A) to raise the track into position. 2. Install pin (4) and cotter pin (3). Note: If you cannot install pin (4) with a suitable hammer, use Tooling (C) to install pin (4). Illustration 3 g01167154 3. Install track shoe (2) and bolts (1). Refer to Table 2 for the correct torque specification for bolts (1). 2/3(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 4. Table 2 Torque Table Machine Model Torque Specification 313, 315, 320, 323, 324, 325, 326, and 329(1) 400 ± 40 N·m (295 ± 30 lb ft) turn an additional 120° ± 5° 330 and 336(2) 700 ± 40 N·m (516 ± 30 lb ft) turn an additional 120° ± 5° (1) D series, D2 series, and E series (2) D series, D2 series, and E series Illustration 4 g01174955 4. Remove Tooling (B) from both ends of the track assembly. 5. Adjust the track tension. Refer to Operation and Maintenance Manual, "Track Adjust". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Thu Feb 13 16:12:46 UTC+0800 2020 3/3(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 5. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D2 EXCAVATOR XBB Configuration: 320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine Disassembly and Assembly 323D2 Excavator Machine Systems Media Number -UENR3338-02 Publication Date -01/07/2017 Date Updated -19/07/2017 i02414071 Front Idler and Recoil Spring - Remove SMCS - 4158-011; 4159-011 Removal Procedure Start By: a. Separate the track assemblies. Refer to Disassembly and Assembly, "Track - Separate". Illustration 1 g00708892 The spring of the recoil spring assembly is compressed under several tons of force. Do not attempt to compress or release the tension of the spring with the nut on the end of the retaining rod. 1/3(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 6. Damaged threads on the retaining rod or nut can cause the assembly to come apart with force, resulting in injury or death. 1. Use a pry bar and move the front idler (1) and the recoil spring partially out of the track roller frame. Attach a suitable lifting device to front idler (1), as shown. Illustration 2 g00708894 2. Once front idler (1) and the recoil spring (2) is partially out of the track frame reposition the suitable lifting device in order to support recoil spring (2) and front idler (1). 3. Slide front idler (1) and recoil spring (2) out of the track roller frame as one unit. The weight of front idler (1) and recoil spring (2) is approximately 213 kg (470 lb). 4. Leave the suitable lifting device attached and turn the front idler and recoil spring (2) around 180 degrees. Illustration 3 g01206689 5. Install the front idler partially into the track frame. The front idler and recoil spring (2) will be supported by the track frame. 6. Reposition the suitable lifting device in order to support recoil spring (2). 7. Remove bolts (3). 2/3(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 7. 8. Separate recoil spring (2) from the front idler. The front idler will be supported by the track frame. 9. The weight of the recoil spring (2) is approximately 100 kg (220 lb). Illustration 4 g00708896 10. Attach a suitable lifting device to front idler (1). The weight of front idler (1) is approximately 113 kg (250 lb). 11. Remove front idler (1) from the track roller frame. Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Thu Feb 13 16:13:42 UTC+0800 2020 3/3(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 8. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D2 EXCAVATOR XBB Configuration: 320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine Disassembly and Assembly 323D2 Excavator Machine Systems Media Number -UENR3338-02 Publication Date -01/07/2017 Date Updated -19/07/2017 i03924569 Front Idler and Recoil Spring - Install SMCS - 4158-012; 4159-012 Installation Procedure 1. Be sure that the mating surfaces on the front support for the recoil spring are clean and free of dirt and debris prior to assembly. Be sure that the mating surfaces on the two bearings for the front idler are clean and free of dirt and debris prior to assembly. Illustration 1 g00708896 2. Attach a suitable lifting device to the front idler (1) . The weight of front idler (1) is approximately 109 kg (240 lb). Install front idler (1) in the track roller frame. 1/3(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 9. Illustration 2 g01206689 3. Attach a suitable lifting device to recoil spring (2) . The weight of recoil spring (2) is approximately 100 kg (220 lb). Position the recoil spring (2) and install bolts (3) . Illustration 3 g00708894 4. Fasten a suitable lifting device to front idler (1) and recoil spring (2) . The combined weight of the front idler (1) and recoil spring (2) is approximately 213 kg (470 lb). 5. Turn the front idler and the recoil spring around 180 degrees. 6. Slide the front idler (1) and recoil spring (2) partially into the track roller frame. 2/3(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 10. Illustration 4 g00708958 7. Remove the suitable lifting device from the recoil spring. Keep the suitable lifting device around front idler (1) . 8. Use a pry bar in order to slide front idler (1) into the final position inside the track roller frame. End By: Connect the track assemblies. Refer to Disassembly and Assembly, "Track - Connect". Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Thu Feb 13 16:14:37 UTC+0800 2020 3/3(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 11. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D2 EXCAVATOR XBB Configuration: 320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine Disassembly and Assembly 323D2 Excavator Machine Systems Media Number -UENR3338-02 Publication Date -01/07/2017 Date Updated -19/07/2017 i06889712 Recoil Spring - Disassemble SMCS - 4158-015 Disassembly Procedure Table 1 Required Tools Tool Part Number Part Description QTY A 4C-9540 Recoil Spring Bench 1 B 146-2457 Hydraulic Power Supply Gp 1 223-3506 Hydraulic Cylinder and Lines Gp 1 C 8S-9971 Adapter 1 Table 2 Required Sockets Thread Socket Part Number M36 138–5189 M42 4C-4467 193–8100 (1) M48 5S-6081 FT-3033 (2) 371–1080 (3) M64 5S-6086 (1) Used with M42 flat sided nut. 1/6(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 12. (2) Used with M48 flat sided nut that is 54 mm (2.13 inch) between the two flats. (3) Used with M48 flat sided nut that is 65 mm (2.56 inch) between the two flats. Start By: a. Remove the front idler and the recoil spring assembly. The spring of the recoil spring assembly is compressed under several tons of force. Do not attempt to compress or release the tension of the spring with the nut on the end of the retaining rod. Damaged threads on the retaining rod or nut can cause the assembly to come apart with force, resulting in injury or death. 1. Prior to disassembling the recoil spring assembly, make sure that Tooling (A) is on a level surface. 2. Prior to disassembling the recoil spring thoroughly clean the outside surface. Illustration 1 g00483426 3. Install Tooling (C) on Tooling (B), as shown. 2/6(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 13. Illustration 2 g00494710 Illustration 3 g00483437 Note: Two adjustable supports (1), reaction plate (2), and movable plate (3) are part of Tooling (A). 4. Adjust the spacing between reaction plate (2) and movable plate (3). The spacing is approximately the same length as the recoil spring assembly (free length). Also, make sure that two adjustable supports (1) are positioned between the reaction plate and the movable plate, as shown. Level the two supports. Note: The recoil spring assembly may be installed in Tooling (A) from the end. In this case, reaction plate (2) must be removed. Then reinstall the reaction plate after the recoil spring assembly is in place on two adjustable supports (1). NOTICE Do not remove the hoist from the recoil spring assembly until the unit is leveled, centered and locked in the specified tooling. 5. The combined weight of the recoil spring assembly is approximately 116 kg (255 lb). 3/6(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 14. 6. Fasten a suitable lifting device to the recoil spring assembly. Put the recoil spring assembly in position on two adjustable supports (1) in Tooling (A). 7. Adjust the two adjustable supports to align the centerline of the recoil spring assembly with the centerline of Tooling (A). Illustration 4 g00498760 The hoist has been removed from the recoil spring assembly to provide a better illustration of level gauge (4). 8. Put a level gauge (4) on the recoil spring assembly. Illustration 5 g00498781 9. Reposition the recoil spring assembly until the recoil spring assembly is level. Reposition the recoil spring assembly until the retaining rod and nut (6) are centered in the hole in reaction plate (2). 10. The recoil spring assembly is leveled by moving adjustable supports (1) higher or lower. After the recoil spring assembly is leveled and centered, install two pins (5) on the back side of reaction plate (2), as shown. 11. Operate Tooling (B) to hold the recoil spring assembly in position between reaction plate (2) and movable plate (3) (not shown). Make sure that the recoil spring assembly is level and centered. 4/6(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 15. Illustration 6 g00498784 12. Close covers (7) on Tooling (A). Use Tooling (B) to compress the recoil spring assembly slightly. Illustration 7 g02148287 Several tons of force are required to compress the recoil spring during assembly. Do not compress the spring assembly until the covers on the tooling have been closed. It is possible for the recoil spring to twist under load and come out of the tooling resulting in injury or death. 5/6(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 16. 13. Through the opening in the end of Tooling (A), remove the socket head bolts and lock strip (8) from the end of the retaining rod. 14. Remove nut (6). Refer to Table 2 for the correct socket part number. Release the force on the recoil spring assembly. 15. Open the covers on Tooling (A). Attach a suitable lifting device to the recoil spring assembly, and remove the recoil spring assembly from Tooling (A). 16. Separate the components of the recoil spring assembly. Remove support (12), spring (10), support (9), and rod (11). Copyright 1993 - 2020 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees. Thu Feb 13 16:15:33 UTC+0800 2020 6/6(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 17. Shutdown SIS Previous Screen Product: EXCAVATOR Model: 320D2 EXCAVATOR XBB Configuration: 320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine Disassembly and Assembly 323D2 Excavator Machine Systems Media Number -UENR3338-02 Publication Date -01/07/2017 Date Updated -19/07/2017 i06889768 Recoil Spring - Assemble SMCS - 4158-016 Assembly Procedure Table 1 Required Tools Tool Part Number Part Description QTY A 4C-9540 Recoil Spring Bench 1 B 146-2457 Hydraulic Power Supply Gp 1 223-3506 Hydraulic Cylinder and Lines Gp 1 C 8S-9971 Adapter 1 E 9S-3263 Thread Lock Compound 1 Table 2 Required Sockets Thread Socket Part Number M36 138–5189 M42 4C-4467 193–8100 (1) M48 5S-6081 FT-3033 (2) 371–1080 (3) 1/7(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 18. M64 5S-6086 (1) Used with M42 flat sided nut. (2) Used with M48 flat sided nut that is 54 mm (2.13 inch) between the two flats. (3) Used with M48 flat sided nut that is 65 mm (2.56 inch) between the two flats. The spring of the recoil spring assembly is compressed under several tons of force. Do not attempt to compress or release the tension of the spring with the nut on the end of the retaining rod. Damaged threads on the retaining rod or nut can cause the assembly to come apart with force, resulting in injury or death. Note: Prior to assembling the recoil spring assembly, make sure that Tooling (A) is on a level surface. Illustration 1 g01157185 1. Check the condition of the threads on rod (11) and nut (6). If the threads are worn or damaged, use new parts for replacement. 2. Assemble the recoil spring assembly loosely. Position spring (10) onto support (9). Install rod (11) into support (9). Position support (12). 2/7(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 19. Illustration 2 g00483426 3. Install Tooling (C) on Tooling (B). Illustration 3 g00494710 Illustration 4 g00483437 Note: Two adjustable supports (1), reaction plate (2), and movable plate (3) are part of Tooling (A). 4. Adjust the spacing between reaction plate (2) and movable plate (3) so that the spacing is approximately the same length as the recoil spring assembly. Also, make sure that two 3/7(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 20. 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.
  • 21. adjustable supports (1) are positioned between the reaction plate and the movable plate, as shown. Level the two supports. Note: The recoil spring assembly may be installed in Tooling (A) from the end. In this case, reaction plate (2) must be removed. Then reinstall the reaction plate after the recoil spring assembly is in place on two adjustable supports (1). NOTICE Do not remove the hoist from the recoil spring assembly until the unit is leveled, centered and locked in the specified tooling. 5. The combined weight of the recoil spring assembly is approximately 116 kg (255 lb). 6. Fasten a suitable lifting device to the recoil spring assembly. Put the recoil spring assembly in position on two adjustable supports (1) in Tooling (A). 7. Adjust the two adjustable supports to align the centerline of the recoil spring assembly with the centerline of Tooling (A). Illustration 5 g00949740 The hoist has been removed from the recoil spring assembly to provide a better illustration of level gauge (4). 8. Operate Tooling (B) and guide the end of the recoil spring assembly through the hole in reaction plate (2). Put a level gauge (4) on the recoil spring assembly. Make sure that the recoil spring assembly is level and centered in Tooling (A). Remove the suitable lifting device from the recoil spring assembly. 4/7(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 22. Illustration 6 g00498784 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. 9. Close covers (7) on Tooling (A). Compress the recoil spring assembly with Tooling (B). Illustration 7 g01157190 (X) Compressed length of the spring 5/7(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...
  • 23. Illustration 8 g00498784 10. Open the covers on Tooling (A). Measure the compressed length of the recoil spring. The compressed length is Dimension (X). Refer to Table 3 for the correct compressed spring length. Table 3 Recoil Spring Compressed Length Model Dimension (X) 315D 448.0 mm (17.64 inch) 319D 550.0 mm (21.65 inch) 320D 550.0 mm (21.65 inch) 323D 550.0 mm (21.65 inch) 686.0 mm (27.01 inch)(1) 324D 606.0 mm (23.86 inch) 325C 551.0 mm (21.69 inch) 325D 686.0 mm (27.01 inch) 845.0 mm (33.27 inch)(2) 326D L 606.0 mm (23.86 inch) 328D 644.0 mm (25.35 inch) 329D 686.0 mm (27.01 inch) 330D 644.0 mm (25.35 inch) 785.0 mm (30.91 inch)(3) 336D 644.0 mm (25.35 inch) 785 mm (30.91inch)(4) (1) This Dimension is for (S/N: DKW1-Up; SED1-Up; NES1-Up) (2) This Dimension is for (S/N: GBR1-Up; MCL1-Up) 6/7(W) w 2020/2/13 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...