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BOOM CYLINDER 4I7631-Page 2 311-A EXCAVATOR


HYDRAULIC SYSTEM
CYLINDER GP

EXCAVATOR 311-A EXCAVATOR 9LJ
 311 SUPPLEMENT FOR TRACK-TYPE EXCAVATOR /OFFSET BOOM/ 9LJ00700-UP (MACHINE) XEBP7242 311-A 9LJ   (1993)

HYDRAULIC SYSTEM

CYLINDER GP
BOOM CYLINDER
BOOM CYLINDER
BOOM CYLINDER GROUP-SEAL&
BOOM CYLINDER GROUP-SEAL&
BOOM CYLINDER GROUP
BOOM CYLINDER GROUP
OIL CYLINDER
OIL CYLINDER
STICK CYLINDER
STICK CYLINDER
OFFSET CYLINDER
OFFSET CYLINDER
OFFSET CYLINDER GROUP--SEAL&
OFFSET CYLINDER GROUP--SEAL&
OFFSET CYLINDER GROUP
OFFSET CYLINDER GROUP
STICK CYLINDER GROUP--SEAL&
STICK CYLINDER GROUP--SEAL&
STICK CYLINDER GROUP
STICK CYLINDER GROUP
 

#XEBP72420001
 

BOOM CYLINDER

BOOM CYLINDER
4I7631-Page 2
c943163 XEBP7242
None BOOM CYLINDER Parts scheme
  For full view, you need register

Parts for your 311-A EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1~8, 10. 124-7869 [1] BOOM CYL. (L. H)  
1~7, 9, 11. 124-7870 [1] BOOM CYL. (R. H)  
1. 4I-7631 Y [2] CYLINDER GP.  
2. 7I-1112 [2] SUPPORT AS.  
3. 7I-1113 [2] SUPPORT AS.  
4. 4J-5267 [4] SEAL  
5. 8T-4121 [20] WASHER  
6. 8T-4182 [16] BOLT  
7. 8T-4195 [12] BOLT  
8. 104-8385 [1] PIPE (L. H)  
9. 104-8386 [1] PIPE (R. H)  
10. 104-8387 [1] PIPE (L. H)  
11. 104-8388 [1] PIPE (R. H)  
  Y   SEPARATE ILLUSTRATION
 

#XEBP72420002
 

BOOM CYLINDER GROUP-SEAL&

BOOM CYLINDER GROUP-SEAL&
4I8841-Page 3
c943164 XEBP7242
None BOOM CYLINDER GROUP-SEAL& Parts scheme
  For full view, you need register

Parts for your 311-A EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1~4. 4I-7631 [1] CYLINDER GP.  
1. 4I-8841 Y [1] CYLINDER GP.  
2. 096-0854 [2] SEAL  
3. 093-1433 [2] SEAL  
4. 3B-8489 [1] FITTING  
  Y   SEPARATE ILLUSTRATION
 

#XEBP72420003
 

BOOM CYLINDER GROUP

BOOM CYLINDER GROUP
c943165 XEBP7242
None BOOM CYLINDER GROUP Parts scheme
  For full view, you need register

Parts for your 311-A EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1~22. 4I-8841 [1] CYLINDER GP.  
1. 6I-6806 [1] CYLINDER AS.  
2. 5I-3063 [1] BEARING  
3. 093-1605 [1] RING  
4. 6V-8467 [1] SEAL  
5. 093-1628 [1] RING  
6. 7I-7185 [1] PISTON  
7. 6I-6922 [1] RING  
8. 5I-4199 [1] STOP  
9. 095-1713 [2] SEAL  
10. 099-5399 [3] RING  
11. 099-5400 [1] RING  
12. 093-1812 [1] BEARING  
13. 099-5368 [1] RING  
14. 6I-6811 [1] ROD AS.  
15. 7Y-3428 [1] BEARING  
16. 6I-6835 [1] HEAD  
17. 093-1439 [1] SEAL  
18. 093-1519 [1] RING  
19. 093-1477 [1] SEAL  
20. 093-1483 [1] SEAL  
21. 9X-7298 [1] SEAL AS.  
22. 7I-1018 [1] LOCKNUT  
    THE FOLLOWING REPAIR KIT IS AVAILABLE
  6I-6858 [1] SEAL KIT  
 

#XEBP72420004
 

OIL CYLINDER

OIL CYLINDER
1247869-Page 1
1247870-Page 1
1247871-Page 5
1247872-Page 6
c943166 XEBP7242
None OIL CYLINDER Parts scheme
  For full view, you need register

Parts for your 311-A EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 124-7869 Y [1] BOOM CYL. (L. H)  
2. 124-7870 Y [1] BOOM CYL. (R. H)  
3. 124-7871 Y [1] STICK CYL.  
4. 124-7872 Y [1] OFFSET CYL.  
  Y   SEPARATE ILLUSTRATION
 

#XEBP72420005
 

STICK CYLINDER

STICK CYLINDER
1247873-Page 9
c943167 XEBP7242
None STICK CYLINDER Parts scheme
  For full view, you need register

Parts for your 311-A EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1~12. 124-7871 [1] STICK CYL.  
1. 124-7873 Y [1] STICK CYL. GP.  
2. 124-7874 [1] PIPE  
3. 1R-8896 [1] PIPE  
4. 1R-8897 [2] SUPPORT  
5. 099-0675 [2] SUPPORT  
6. 093-1292 [2] CLAMP  
7. 8T-1160 [8] BOLT  
8. 8T-7811 [2] BOLT  
9. 9X-6032 [4] BOLT  
10. 8T-4121 [4] WASHER  
11. 8T-4223 [2] WASHER  
12. 4J-5267 [2] SEAL  
  Y   SEPARATE ILLUSTRATION
 

#XEBP72420006
 

OFFSET CYLINDER

OFFSET CYLINDER
1247877-Page 7
c943168 XEBP7242
None OFFSET CYLINDER Parts scheme
  For full view, you need register

Parts for your 311-A EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1~13. 124-7872 [1] OFFSET CYL.  
1. 124-7877 Y [1] OFFSET CYL. GP.  
2. 124-7878 [1] PIPE  
3. 124-7975 [1] PIPE  
4. 099-0691 [1] SUPPORT  
5. 099-0692 [1] SUPPORT  
6. 093-1292 [1] CLAMP  
7. 8T-1160 [4] BOLT  
8. 8T-7811 [1] BOLT  
9. 9X-6032 [2] BOLT  
10. 8T-4121 [2] WASHER  
11. 8T-4223 [1] WASHER  
12. 4J-5267 [2] SEAL  
13. 8T-0341 [4] BOLT  
  Y   SEPARATE ILLUSTRATION
 

#XEBP72420007
 

OFFSET CYLINDER GROUP--SEAL&

OFFSET CYLINDER GROUP--SEAL&
1247879-Page 8
c943169 XEBP7242
None OFFSET CYLINDER GROUP--SEAL& Parts scheme
  For full view, you need register

Parts for your 311-A EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1~5. 124-7877 [1] OFFSET CYL. GP.  
1. 124-7879 Y [1] OFFSET CYL. GP.  
2. 093-1433 [4] SEAL  
3. 8T-6763 [1] PLUG  
4. 3B-8489 [2] FITTING  
5. 124-7880 [1] 90 degrees ELBOW  
  Y   SEPARATE ILLUSTRATION
 

#XEBP72420008
 

OFFSET CYLINDER GROUP

OFFSET CYLINDER GROUP
c943170 XEBP7242
None OFFSET CYLINDER GROUP Parts scheme
  For full view, you need register

Parts for your 311-A EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1~24. 124-7879 [1] OFFSET CYL. GP.  
1. 124-7881 [1] CYLINDER AS.  
2. 103-8441 [1] RING  
3. 103-8442 [1] RING  
4. 105-7398 [1] STOP  
5. 5I-3024 [1] NUT  
6. 093-1604 [1] RING  
7. 9X-3592 [1] SEAL AS.  
8. 093-1630 [1] RING  
9. 5I-3044 [1] PISTON  
10. 6I-6921 [1] RING  
11. 5I-3046 [1] STOP  
12. 095-1628 [2] SEAL  
13. 099-0681 [3] RING  
14. 099-8139 [1] RING  
15. 093-1814 [1] BEARING  
16. 093-1484 [1] SEAL  
17. 093-1479 [1] SEAL  
18. 096-1054 [1] RING  
19. 099-0686 [1] HEAD  
20. 116-3387 [1] SEAL  
21. 124-7882 [1] ROD AS.  
22. 099-0695 [1] RING  
23. 095-1676 [1] SEAL  
24. 8T-4241 [2] RING  
 

#XEBP72420009
 

STICK CYLINDER GROUP--SEAL&

STICK CYLINDER GROUP--SEAL&
1247875-Page 10
c943171 XEBP7242
None STICK CYLINDER GROUP--SEAL& Parts scheme
  For full view, you need register

Parts for your 311-A EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1~4. 124-7873 [1] STICK CYL. GP.  
1. 124-7875 Y [1] STICK CYL. GP.  
2. 093-1433 [4] SEAL  
3. 8T-6763 [1] PLUG  
4. 3B-8489 [1] FITTING  
  Y   SEPARATE ILLUSTRATION
 

Information:

Special Instruction
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Installation of Vented Buffer Seal Assembly, U-Cup Seal, and Double Lip Wiper Seal for Hydraulic Cylinders{7562}
Installation of Vented Buffer Seal Assembly, U-Cup Seal, and Double Lip Wiper Seal for Hydraulic Cylinders{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Technical Information Bulletin
The Failure of the Buffer Seal that can be Caused by a Defect in the Seal Groove on All Track-Type Tractors, Wheel Loaders, Hydraulic Excavators and Backhoe Loaders that Use Cylinders that were Manufactured After 1January 2000{7562}
The Failure of the Buffer Seal that can be Caused by a Defect in the Seal Groove on All Track-Type Tractors, Wheel Loaders, Hydraulic Excavators and Backhoe Loaders that Use Cylinders that were Manufactured After 1January 2000{7562}
Discoloration of the Hydraulic Cylinder Rod on Certain Excavators{5102, 5456, 5457, 5458, 5468, 7562}
Discoloration of the Hydraulic Cylinder Rod on Certain Excavators{5102, 5456, 5457, 5458, 5468, 7562}
Surface Finishes of Cylinder Bores{7562}
Surface Finishes of Cylinder Bores{7562}
Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}
Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}
Specifications
Boom Cylinder
311 AND 312 EXCAVATORS HYDRAULIC SYSTEMS
Stick Cylinder
311 AND 312 EXCAVATORS HYDRAULIC SYSTEMS
Bucket Cylinder
311 AND 312 EXCAVATORS HYDRAULIC SYSTEMS
Tool Operating Manual
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
Using the 265-4177, 265-4209 Service Tool Groups to Install Sensors in Position-Sensing Hydraulic Cylinders{0599, 0709, 0738, 1439, 7562, 7562}
Using the 265-4177, 265-4209 Service Tool Groups to Install Sensors in Position-Sensing Hydraulic Cylinders{0599, 0709, 0738, 1439, 7562, 7562}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Reuse And Salvage Guidelines
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Reuse Guideline for Hydraulic Cylinder Position Sensor {5574, 5736}
Reuse Guideline for Hydraulic Cylinder Position Sensor {5574, 5736}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}
HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}
Thermal Spray Procedures for Hydraulic Cylinder Rods{0679, 7562, 7562}
Thermal Spray Procedures for Hydraulic Cylinder Rods{0679, 7562, 7562}
Contamination Control Guidelines
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Applied Failure Analysis
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Bench Test Procedures
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Disassembly and Assembly
Bucket Cylinder
311 AND 312 EXCAVATORS MACHINE SYSTEMS
Stick Cylinder
311 AND 312 EXCAVATORS MACHINE SYSTEMS
Boom Cylinders
311 AND 312 EXCAVATORS MACHINE SYSTEMS
Service Magazine
Stick Cylinder Rebuild Requires Snap Ring Replacement {5458}
1993/10/04
Anti-Stick Oil Eliminates Noise From Implement Cylinder Piston Seals{5068}
1995/03/13
Tightening Specifications Are Changed For Piston Locknut On Bucket, Boom And Stick Cylinders {5456,5457,5458}
1997/03/24
New Backup Rings Are Available for Sealing Hydraulic Cylinders with Pitted Grooves {4303, 5102, 5104, 5106, 5456, 7562}
2003/06/30
New Assembly Instructions for Rod Seals on Hydraulic Cylinders are Available {7562}
2001/09/04
Correctly Assembling the Buffer Seal Will Prevent Failure of the U-Cup Seals {7562}
2001/07/30
Procedure for the Removal of Air From Hydraulic Cylinders {7562}
2003/01/06
Double Lip Wiper Seals Must Be Installed Properly {7562}
2002/12/09
Boom Cylinder Link Assemblies Support Implement During Service {0635, 0738}
2004/03/08
Procedure Now Available to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
2013/02/28
Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}
2009/01/05
Correct Ring Orientation Provides Smooth Hydraulic Cylinder Operation {5456, 5458}
2009/03/16
A Rework Procedure Improves the Seal Assembly Performance in Hydraulic Cylinders on Cat Products {7562}
2010/04/30

Caterpillar Parts SIS Catalog 311-A :

BOOM CYLINDER GROUP-SEAL&
BOOM CYLINDER GROUP-SEAL&
BOOM CYLINDER GROUP
BOOM CYLINDER GROUP
OIL CYLINDER
OIL CYLINDER
STICK CYLINDER
STICK CYLINDER
OFFSET CYLINDER
OFFSET CYLINDER
OFFSET CYLINDER GROUP--SEAL&
OFFSET CYLINDER GROUP--SEAL&
OFFSET CYLINDER GROUP
OFFSET CYLINDER GROUP
STICK CYLINDER GROUP--SEAL&
STICK CYLINDER GROUP--SEAL&
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