Carrier Roller Disassembly and Assembly Procedures {4154} Caterpillar


Carrier Roller Disassembly and Assembly Procedures {4154}

Usage:

D6D 01Y
Caterpillar Products
Machines with Grease Lubricated Track with Swage
Machines with Greased Lubricated Track (GLT)
Machines with Positive Pin Retention (PPR) Track
Machines with Positive Pin Retention 2 (PPR2) Track
Machines with Rotating Bushing Track
Machines with Sealed Positive Pin Retention (PPR) Track
Machines with Sealed Track
Machines with Sleeve Bearing Track
Machines with SystemOne Undercarriage
Machines with non-PPR Sealed and Lubricated Track
Pipelayer
PL72 (S/N: P721-UP; P731-UP)
PL83 (S/N: CB21-UP; DLW1-UP)
PL87 (S/N: TEC1-UP; ZAC1-UP)
Track Drills
MD5150C (S/N: SEY1-UP)

Introduction

Table 1
Revision  Summary of Changes in SEBF8580 
22  Added serial number prefixes for New Product Introduction. 
21  Added serial number prefixes for New Product Introduction.
Added model 340F, 558GF, AND AP655F. 
20  Added serial number prefixes for New Product Introduction. 
19  Added serial number prefixes for New Product Introduction.
Added model D6K2.
Added part number 375-6431 to document. 
18  Added serial number prefixes for New Product Introduction.
Added model PL72 

© 2019 Caterpillar All Rights Reserved. This guideline is for the use of Caterpillar dealers only. Unauthorized use of this document or the proprietary processes therein without permission may be violation of intellectual property law. Information contained in this document is considered Caterpillar: Confidential Yellow.

This Undercarriage Reconditioning Bulletin contains the necessary information to allow a dealer to establish a parts reusability program. Reuse and salvage information enables Cat dealers and customers to benefit from cost reductions. Every effort has been made to provide the most current information that is known to Caterpillar. Continuing improvement and advancement of product design might have caused changes to your product which are not included in this publication. This Undercarriage Reconditioning Bulletin must be used with the latest technical information that is available from Caterpillar.

For questions when using this document, work with your Dealer Technical Communicator (TC).

To report suspected errors, inaccuracies, or suggestions regarding this document, submit a form for feedback in the Service Information System(SIS Web) interface.

Summary

The following information is given to provide Disassembly and Assembly procedures for Carrier Rollers. The information in this bulletin should serve as an aid in determining whether a carrier roller can be reconditioned. During rebuild procedures, always correct any conditions which may have caused the original failure or wear and never install a component that falls within the "Do not use again" criteria.

References

Undercarriage Reconditioning Bulletin, SEBF8511, "Reusability and Assembly Recommendations for Duo-Cone Seals"

Undercarriage Reconditioning Bulletin, SEBF8575, "Oil Fill Volumes for Carrier Rollers"

Undercarriage Reconditioning Bulletin, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals"

Undercarriage Reconditioning Bulletin, SEHS8484, "Tool and Specification Chart for Conventional Duo-Cone Seals"

Undercarriage Reconditioning Bulletin, SEBF8594, "Nitrogen Pressure Test Unit"

Safety



Illustration 1g02139237

Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly.

This bulletin may contain hazardous steps. A safety alert symbol like the ones below is used to call attention to a hazard.

Warning messages identify a specific, imminent, latent, hazard that has a reasonable probability of resulting in personal injury or death if the warning is ignored.

------ WARNING! ------

Do not attempt to disassemble or assemble this machine until you read and understand the disassembly and assembly instructions. Improper disassembly and assembly procedures could result in injury or death.


------ WARNING! ------

Inspect all threaded components before use. Damaged threads may fail under hydraulic pressure. Broken threads may release flying objects that are propelled with great force. Personal injury or death can occur if struck by flying objects.


------ WARNING! ------

Do not stand near the hydraulic press while the press is in operation. A component that slips or breaks under pressure may fly into the air with great force. Personal injury or death can occur if struck by flying objects.


------ WARNING! ------

Personal injury or death can result from fumes, gases and ultraviolet rays from the weld arc.

Welding can cause fumes, burn skin and produce ultraviolet rays.

Keep your head out of the fumes. Use ventilation, exhaust at the arc, or both, to keep fumes and gases from your breathing area. Wear eye, ear and body protection before working.

Protect yourself and others; read and understand this warning. Fumes and gases can be dangerous to your health. Ultraviolet rays from the weld arc can injure eyes and burn skin. Electric shock can cause death.

Read and understand the manufacturer's instructions and your employer's safety practices. Do not touch live electrical parts.

See "American National Standard Z49.1, Safety in Welding and Cutting" published by the American Welding Society.

American Welding Society
2501 N.W. 7th Street
Miami, Florida 33125

See "OSHA Safety and Health Standards, 29 CFR 1910", available from U.S. Department of Labor.

U.S. Department of Labor
Washington, D.C. 20210

Canceled Part Numbers and Replaced Part Numbers

This document does not include all canceled part number and replaced part number information. Use NPR on SIS for information about canceled part numbers and replaced part numbers. NPR will provide the current part numbers for replaced parts.

Tooling

Table 2
TRACK-TYPE TRACTORS AND TRACK LOADERS 
Model No.  Carrier Roller Group  Seal Group  Seal Installer  Seal Height Tool 
D11N, D11T  184-6305  162-7864  129-1340  8T-0447 
184-6306 162-7864  129-1340  8T-0447 
D11R  184-6305  162-7864  129-1340  8T-0447 
184-6306 162-7864  129-1340  8T-0447 
309-7679 162-7863  227-4755  8T-0447 
D10N  309-7679  162-7863  227-4755  8T-0447 
D10R, D10T  309-7679  162-7863  227-4755  8T-0447 
332-6423 162-7863  227-4755  8T-0447 
D10  9G-7607  6V-2696  8T-0830  8T-0447 
7T-0157
D9  3P-3403  9W-7220  1U-8841  8T-0447 
7M-5287 1M-8746  1U-8841  8T-0447 
D9G, D9H  7M-5288  1M-8746  1U-8841  8T-0447 
3P-3403 9W-7220  1U-8841  8T-0447 
D9N, D9R, D9T  196-9955  162-7862  136-6813  8T-0447 
D8H, D8K  7M-5202  1M-8747  1U-8840  8T-0447 
8P-6256 9W-6647  1U-8840  8T-0447 
188-5612 188-5727  1U-8840  8T-0447 
D8N, D8R  246-0775  162-7862  136-6813  8T-0447 
8E-0400 9W-7220  1U-8841  8T-0447 
D8T  246-0775  162-7862  136-6813  8T-0447 
D7  1P-8717  6Y-0925  1U-8840  8T-0447 
D7E  1P-8717  6Y-0925  1U-8840  8T-0447 
349-7830 6Y-0925  1U-8840  8T-0447 
360-2560 6Y-0925  1U-8840  8T-0447 
D7F, D7G  188-5600  188-5727  1U-8840  8T-0447 
1P-8717 9W-6647  1U-8840  8T-0447 
D7H, D7R, D7X  360-2560  6Y-0925  1U-8840  8T-0447 
1P-8717 9W-6647  1U-8840  8T-0447 
D6  5A-8374  9W-6647  1U-8840  8T-0447 
3T-3206 9W-6647  1U-8841  8T-0447 
D6C  9S-2730  1M-8747  1U-8840  8T-0447 
3T-3206 9W-6647  1U-8841  8T-0447 
188-5590 188-5727  1U-8840  8T-0447 
6K-9879 2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8840  8T-0447 
D6D  188-5590  188-5727  1U-8840  8T-0447 
3T-3206 9W-6647  1U-8840  8T-0447 
D6E, D6G  3T-3206  9W-6647  1U-8840  8T-0447 
D6K  227-5971  9W-5224  1U-8843  8T-0447 
362-0515 9W-5224  1U-8843  8T-0447 
372-3375 9W-5224  1U-8843  8T-0447 
D6K2  375-6431  2M-2858  1U-8843  8T-0447 
372-3375 9W-5224  1U-8843  8T-0447 
D6M, D6N  6Y-3908  1M-8747  1U-8840  8T-0447 
229-5446 6Y-0925  1U-8840  8T-0447 
D6H, D6R D6R2  6Y-1781  1M-8747  1U-8840  8T-0447 
235-5974 6Y-0925  1U-8840  8T-0447 
D6T  235-5974  6Y-0925  1U-8840  8T-0447 
D5, D5B, D5E  9S-3570  1M-8747  1U-8840  8T-0447 
5A-8374 9W-6647  1U-8840  8T-0447 
D5C, D5G, D5K  6K-9879  9W-7216  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
227-5971 9W-5224  1U-8843  8T-0447 
D5N, D5M  227-5971  9W-5224  1U-8843  8T-0447 
362-0515 9W-5224  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
D5R
D5H 
6Y-3908  1M-8747  1U-8840  8T-0447 
229-5446 6Y-0925  1U-8840  8T-0447 
D5R2  229-5446  6Y-0925  1U-8840  8T-0447 
D4, D4D, D4E  6K-9879  2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
D4H  227-5971  9W-5224  1U-8843  8T-0447 
362-0515 9W-5224  1U-8843  8T-0447 
D4B  6K-9880  9W-7216  1U-8843  8T-0447 
6S-3609 9W-7216  1U-8843  8T-0447 
D4C  225-7650  9W-5224  1U-8843  8T-0447 
227-5971 9W-5224  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
6S-3609 9W-7216  1U-8843  8T-0447 
D5K, D5K2, D4G, D4K, D4K2, D3C, D3G, D3K,D3K2  225-7650  9W-5224  1U-8843  8T-0447 
6S-3609 9W-7216  1U-8843  8T-0447 
D3  6K-9879  2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
6S-3609 9W-7216  1U-8843  8T-0447 
D3B, D3C  6S-3609  9W-7216  1U-8843  8T-0447 
983, 983B  8S-6593  4S-8984  1U-8840  8T-0447 
9P-2663(1) 4S-8984  1U-8840  8T-0447 
8M-0380 1M-8747  1U-8840  8T-0447 
8P-6256 9W-6647  1U-8840  8T-0447 
983C  229-5446  6Y-0925  1U-8840  8T-0447 
6Y-3908 1M-8747  1U-8840  8T-0447 
977  1P-8717  9W-6647  1U-8840  8T-0447 
977K, 977L  188-5600  188-5727  1U-8840  8T-0447 
2P-3514(2) 4S-8984  1U-8840  8T-0447 
973D  2P-3514  4S-8984  1U-8840  8T-0447 
235-5974 6Y-0925  1U-8840  8T-0447 
973, 973C  1P-8717  9W-6647  1U-8840  8T-0447 
2P-3514 4S-8984  1U-8840  8T-0447 
973 Steel Mill  2P-3514(2)  4S-8984  1U-8840  8T-0447 
963  9S-2730  1M-8747  1U-8840  8T-0447 
3T-3206 9W-6647  1U-8840  8T-0447 
963 963K, 963B  235-5974  6Y-0925  1U-8840  8T-0447 
3T-3206 9W-6647  1U-8840  8T-0447 
6Y-1781 1M-8747  1U-8840  8T-0447 
963C  6Y-1781  1M-8747  1U-8840  8T-0447 
235-5974 6Y-0925  1U-8840  8T-0447 
963D  235-5974  6Y-0925  1U-8840  8T-0447 
955, 955K  5A-8374  6Y-0925  1U-8840  8T-0447 
955L  188-5590  188-5727  1U-8840  8T-0447 
1V-8055 1M-8747  1U-8840  8T-0447 
5A-8374 9W-6647  1U-8840  8T-0447 
953, 953B  9S-3570  1M-8747  1U-8840  8T-0447 
5Y-1130 1M-8747  1U-8840  8T-0447 
1V-8055 1M-8747  1U-8840  8T-0447 
6Y-3908 1M-8747  1U-8840  8T-0447 
229-5446 6Y-0925  1U-8840  8T-0447 
5A-8374 9W-6647  1U-8840  8T-0447 
953C  6Y-3908  9W-6647  1U-8840  8T-0447 
229-5446 6Y-0925  1U-8840  8T-0447 
953D  227-5971  9W-5224  1U-8843  8T-0447 
229-5446 6Y-0925  1U-8840  8T-0447 
951  5A-8374  6Y-0925  1U-8840  8T-0447 
951B, 951C  227-5971  9W-5224  1U-8843  8T-0447 
9S-3570 1M-8747  1U-8840  8T-0447 
5A-8374 9W-6647  1U-8840  8T-0447 
943, 941, 941B  6K-9879  2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
939, 939C  6K-9879  2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
935, 935B, 935C, 933, 933C, 931B, 931C  6S-3609  9W-7216  1U-8843  8T-0447 
931  6S-3609  9W-7216  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
(1) 8P-6256 Carrier Roller Group is standard removal for 9P-2663 Carrier Roller Group.
(2) 1P-8717 Carrier Roller Group is standard removal for 2P-3514 Carrier Roller Group.

Table 3
FRONT SHOVELS, HYDRAULIC EXCAVATORS AND ROTARY DRILL 
Model No.  Carrier Roller Group  Seal Group  Seal Installer  Seal Height Tool 
5230, 5230B, 5130, 5130B  6I-7227  9W-6672  1U-6439  8T-0447 
6I-7547 9W-6672  1U-6439  8T-0447 
5130, 5130B  6I-7227  109-0881  1U-8849  8T-0447 
159-8347 109-0881  1U-8849  8T-0447 
5110 5110B  159-8346  176-5331  1U-6439  8T-0447 
5090B  242-4066  171-5811  1U-8842  8T-0447 
300-4611 171-5811  1U-8842  8T-0447 
5080  6Y-8168  9W-7225  1U-8842  8T-0447 
242-4066 171-5811  1U-8842  8T-0447 
300-4611 171-5811  1U-8842  8T-0447 
552, 551, 541, 532, 522  206-1264  206-9212  1U-8842  8T-0447 
521, 511  206-1264  206-9212  1U-8842  8T-0447 
390D
390F
390D2
MD6540
MD6540C
MD6640 
300-4611  171-5811  1U-8842  8T-0447 
475-8471
385CL, 385CFS, 385C, 385BL, 385B  242-4066  171-5811  1U-8842  8T-0447 
300-4611 171-5811  1U-8842  8T-0447 
375  6Y-8168  9W-7225  1U-8842  8T-0447 
242-4066 171-5811  1U-8842  8T-0447 
300-4611 171-5811  1U-8842  8T-0447 
374D
374F 
300-4611  171-5811  1U-8842  8T-0447 
475-8471
365, 365B, 365C  6Y-8168  9W-7225  1U-8843  8T-0447 
242-4066 171-5811  1U-8842  8T-0447 
300-4611 171-5811  1U-8842  8T-0447 
350  6Y-8080  9W-5224  224-9466  8T-0447 
6Y-5323 9W-7216  1U-8843  8T-0447 
300-4545 179-1292  1U-8843  8T-0447 
8E-4623 9W-7225  1U-8842  8T-0447 
345B, 345BL, 345C, 345D, 349D  124-7280  9W-7225  1U-8842  8T-0447 
300-4610 9W-2201  1U-8842  8T-0447 
349F, 352F  300-4610  9W-2201  1U-8842  8T-0447 
340D2, 336D2, 336D, 330, 330B, 330C, 330D, 328D, 325, 325B, 325C, 325D, 329D  179-1486  148-3533  9U-7537  8T-0447 
300-4545 179-1292  1U-8843  8T-0447 
6Y-5323 9W-7216  1U-8843  8T-0447 
558GF  428-8691  148-3533  9U-7537  8T-0447 
568
521B
522B 
183-2874
428-8691 
148-3533  9U-7537  8T-0447 
336F 340F  300-4545  179-1292  1U-8843  8T-0447 
336D2
336E
340D
340D2
349F 
300-4545  179-1292  1U-8843  8T-0447 
183-2879 148-3533  9U-7537  8T-0447 
183-2874
428-8691
148-3533  9U-7537  8T-0447 
330  6Y-8080  9W-5224  224-9466  8T-0447 
6Y-5323 9W-7216  1U-8843  8T-0447 
300-4545 179-1292  1U-8843  8T-0447 
8E-5600 9W-7225  9U-5985  8T-0447 
330B, 330C, 330D  6Y-8080  9W-5224  224-9466  8T-0447 
6Y-5323 9W-7225  9U-5985  8T-0447 
300-4545 179-1292  1U-8843  8T-0447 
329D  6Y-5323  179-1292  1U-8843  8T-0447 
300-4545 179-1292  1U-8843  8T-0447 
328D  6Y-5323  9W-7225  9U-5985  8T-0447 
300-4545 179-1292  1U-8843  8T-0447 
325, 325B, 325C, 325D  6Y-8080  9W-5224  224-9466  8T-0447 
6Y-5323 9W-7216  1U-8843  8T-0447 
300-4545 179-1292  1U-8843  8T-0447 
313D2
320E
324D
326D
MD5150C 
8E-5600  8E-5608  9U-5985  8T-0447 
323D
323D2 
8E-5600  8E-5608  9U-5985  8T-0447 
322, 322B, 322C  8E-5600  8E-5608  9U-5985  8T-0447 
321BSR, 321D, 321C  8E-5600  8E-5608  9U-5985  8T-0447 
320  8E-5600  8E-5608  9U-5985  8T-0447 
4I-7345 099-0183  1U-6144  8T-0447 
320B, 320C, 320D, 320D2  8E-5600  099-0183  9U-5985  8T-0447 
6Y-8080 9W-5224  224-9466  8T-0447 
6Y-5323 9W-7216  1U-8843  8T-0447 
300-4545 9W-7216  1U-8843  8T-0447 
423-2763 179-1292  1U-8843  8T-0447 
320S  6Y-8080  9W-5224  224-9466  8T-0447 
6Y-5323 9W-7216  1U-8843  8T-0447 
300-4545 9W-7216  1U-8843  8T-0447 
319D, 319C  8E-5600  8E-5608  9U-5985  8T-0447 
318B, 318BL, 318BN, 318C, 318D, 318D2, 318E, 318F,  8E-5600  8E-5608  9U-5985  8T-0447 
317, 317BL, 317BLN, 317N  8E-5600  8E-5608  9U-5985  8T-0447 
315, 315B, 315C, 315D  8E-5600  8E-5608  9U-5985  8T-0447 
314C
314E 
4I-7345  099-0183  1U-6144  8T-0447 
313B, 313C, 313D  4I-7345  099-0183  1U-6144  8T-0447 
313D2, 313F, 314F, 315F  396-3754  099-0183  1U-6144  8T-0447 
312, 312B, 312C, 312D, 312D2, 312E, 312F  4I-7345  099-0183  1U-6144  8T-0447 
8E-5600 8E-5608  9U-5985  8T-0447 
396-3754 099-0183  1U-6144  8T-0447 
311, 311B, 311C, 311D,
311F 
4I-7345  099-0183  1U-6144  8T-0447 
311F  4I-7345  099-0183  1U-6144  8T-0447 
396-3754 099-0183  1U-6144  8T-0447 
308B, 308C, 308D, 308E2, 307, 307B, 307E2  136-2393  099-0183  123-2999  8T-0447 
277-8576 099-6463  123-2999  8T-0447 
333-5602 099-6463  123-2999  8T-0447 
308BSR, 308CCR, 308CSR, 308DSR, 308DCR, 307C, 307D, 306, 305.5  136-2393  099-0183  123-2999  8T-0447 
TK752, TK751, TK732  183-2874
428-8691 
148-3533  9U-7537  8T-0447 
TK741, TK722, TK721, TK711  206-1264  206-9212  1U-8842  8T-0447 
TK711  197-4161  206-9212  1U-8842  8T-0447 
245, 245B, 245D  9G-7034  9W-6647  1U-8840  8T-0447 
235, 235C  1P-8717  9W-6647  1U-8840  8T-0447 
9S-3570 1M-8747  1U-8840  8T-0447 
3T-3206 9W-6647  1U-8840  8T-0447 
235B, 235D  1P-8717  9W-6647  1U-8840  8T-0447 
231D  3T-3206  9W-6647  1U-8840  8T-0447 
229, 229D  3T-3206  9W-6647  1U-8840  8T-0447 
227  3T-3206  9W-6647  1U-8840  8T-0447 
225  1P-8717  9W-6647  1U-8840  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
9S-3570 1M-8747  1U-8840  8T-0447 
5A-8374 9W-6647  1U-8840  8T-0447 
225D  9S-3570  1M-8747  1U-8840  8T-0447 
5A-8374 9W-6647  1U-8840  8T-0447 
219, 219D  9S-3570  1M-8747  1U-8840  8T-0447 
5A-8374 9W-6647  1U-8840  8T-0447 
215, 215D  6K-9879  2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
9S-3570 1M-8747  1U-8840  8T-0447 
5A-8374 9W-6647  1U-8840  8T-0447 
3T-4618 9W-7216  1U-8843  8T-0447 
215C  6K-9879  2M-2858  1U-8843  8T-0447 
6K-9880   1U-8843  8T-0447 
215D  (Reference SEBF8568 for Track Roller Group 8E-7494) 
6K-9879 2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
213  (Reference SEBF8568 for Track Roller Group 8E-7494) 
213B  (Reference SEBF8568 for Track Roller Group 8E-7494) 
6K-9879 2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
213B  (Reference SEBF8568 for Track Roller Group 8E-7494) 
6K-9879 2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
213B  (Reference SEBF8568 for Track Roller Group 8E-7494) 
6K-9879 2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
211B  (Reference SEBF8568 for Track Roller Group 8E-7494) 
6K-9879 2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
205  (Reference SEBF8568 for Track Roller Group 8E-7494) 
6K-9879 2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 
205B  6K-9879  2M-2858  1U-8843  8T-0447 
6K-9880 9W-7216  1U-8843  8T-0447 

Table 4
PIPELAYERS, Asphalt Pavers 
Model No.  Carrier Roller Group  Seal Group  Seal Installer  Seal Height Tool 
AP655F  6S-3609  9W-7216  1U-8843  8T-0447 
PL61  227-5971  9W-5224  1U-8843  8T-0447 
594, 594H, 571G  7M-5288  1M-8746  1U-8841  8T-0447 
3P-3403 9W-2142  1U-8841  8T-0447 
589  6Y-2950  7T-0159  8T-0829  8T-0447 
587R, 587T,  198-6703  7T-0159  8T-0829  8T-0447 
278-9538 107-4889  136-6813  8T-0447 
244-0942 107-4889  136-6813  8T-0447 
583, 583H, 583K  7M-5202  1M-8747  1U-8840  8T-0447 
8P-6256 9W-6647  1U-8840  8T-0447 
188-5612 188-5727  1U-8840  8T-0447 
583T, 583R, 578, PL83, PL87  278-9538  107-4889  136-6813  8T-0447 
278-9538 107-4889  136-6813  8T-0447 
244-0942 107-4889  136-6813  8T-0447 
PL72  235-5974  6Y-0925  1U-8840  8T-0447 
572, 572G, 572R, 571, 571A  1P-8717  9W-6647  1U-8840  8T-0447 
561  5A-8374  9W-6647  1U-8840  8T-0447 
561C, 561D  9S-3570  1M-8747  1U-8840  8T-0447 
5A-8374 9W-6647  1U-8840  8T-0447 
561H  1P-8717  9W-6647  1U-8840  8T-0447 
5A-8374 9W-6647  1U-8840  8T-0447 
6K-9880 9W-7216  1U-8840  8T-0447 
561M  1P-8717  9W-6647  1U-8840  8T-0447 
6K-9880 9W-7216  1U-8840  8T-0447 
561N  6K-9880  9W-7216  1U-8840  8T-0447 

Disassembly



    Illustration 2g02393017
    Remove the plug.

  1. Remove the plug from the cover on the roller.


    Illustration 3g02393036
    Drain the oil.

  2. Drain the oil from the carrier roller.


    Illustration 4g02393040
    Unbolt the cover.


    Illustration 5g02393043
    Remove the cover.

  3. Unbolt and remove the cover from the end of the roller.


    Illustration 6g02393056
    Bolts, lock, and plate in carrier roller.


    Illustration 7g02393062
    Remove bolts, lock, and plate.


    Illustration 8g02393078
    Bolts, lock, and plate removed.

  4. Remove the bolts, lock, and plate from the end of the shaft.


    Illustration 9g02393097

  5. Compress the collar using a press or tooling.


    Illustration 10g02393101

  6. Remove the retaining ring while the collar is compressed.


    Illustration 11g02393116

  7. Remove the collar from the carrier roller.


    Illustration 12g02393117

    Note: Refer to Reuse and Salvage Guideline, SEBF8511, "Reusability and Assembly Recommendations for Duo-Cone Seals" for proper Duo-Cone seal reuse information.

  8. Remove the Duo-Cone seals from the carrier roller and inspect for reusability.


    Illustration 13g02393118

  9. Duo-Cone seals removed from carrier roller shaft.


    Illustration 14g02393119

  10. Remove the Duo-Cone seals from the collar assembly.


    Illustration 15g02393120

  11. Place the roller in the carrier roller press.


    Illustration 16g02393123

  12. Press the shaft out of the carrier roller.


    Illustration 17g02393127

  13. Remove the bearing cone from the shaft.


    Illustration 18g02393130
    Remove bearing cups
    (1) Carrier roller
    (2) Bearing cups

  14. Remove the bearing cups from the carrier roller using the proper driver.

  15. Remove the shaft o-ring.

Assembly



    Illustration 19g02393133

  1. Place the bearing cone on the shaft.


    Illustration 20g02393134
    (1) Carrier roller
    (2) Bearing cups

  2. Install the bearing cups in the roller using the proper installer.


    Illustration 21g02393156

  3. Install the shaft into the carrier roller

  4. Remove all dirt and debris from the seal ramp.


    Illustration 22g02393176

  5. Install the Duo-Cone seals into the carrier roller using an even, perpendicular force on the seal installation tool. (See Tooling reference for proper seal installation tool.)


    Illustration 23g02393178

  6. Install the Duo-Cone seals into the collars.


    Illustration 24g02393179

  7. Wipe the Duo-Cone seal faces in both the roller and collar with a clean, dry lint free cloth.

  8. Lightly oil the entire seal faces with a thin coat of oil.


    Illustration 25g02393182

  9. Place a new o-ring on the carrier roller shaft. Lightly oil the entire shaft o-ring.


    Illustration 26g02393183

  10. Install the collar on the shaft.


    Illustration 27g02393185

  11. Compress the collar down the shaft using the press until the retaining ring groove is exposed.


    Illustration 28g02393196

  12. Install the retaining ring while the collar is compressed.


    Illustration 29g02393336

  13. Install retaining ring.


    Illustration 30g02393357

  14. Install the top bearing cone.


    Illustration 31g02393362
    (1) Carrier roller
    (2) Carrier roller shaft
    (3) Top bearing cup
    (4) Top bearing cone

  15. Install the plate, lock, and bolts in the end of the shaft.( See (4) Table 2 for proper torque specifications.)


    Illustration 32g02393376

  16. Replace the plate, lock, and bolts.


    Illustration 33g02393379
    Install the top cover.

  17. Bolt the top cover onto the carrier roller. (See Table 5 for proper torque specifications.)

    Note: Static inspection torque values listed are minimum requirements but must not exceed the upper limit for dynamic assembly torque.



    Illustration 34g02443016
    Refer to Undercarriage Reconditioning Bulletin, SEBF8594, "Nitrogen Pressure Test Unit FT2724"


    NOTICE

    Repair Process Engineering no longer supports vacuum testing of undercarriage components. The use of the Nitrogen Pressure Test Unit referred to in SEBF8594 is an acceptable practice.


    Note: Contamination can cause a good component joint to fail. The use of nitrogen instead of shop air will ensure that clean harmless gas enters the cavity. Unless the shop air is filtered and ran through a dryer, the air will contain harmful particles and water. Untreated air will then enter the component joint and cause premature failure.



    Illustration 35g02722068
    (1) 8T-0831 Lubricator Tip
    (2) 4C-7099 Reducer Fitting
    (3) 170-5665 Pressure Tester
    (4) 5P-8998 Pipe Fitting
    (5) 006-0210 Pipe Tee
    (6) 8T-0848 Pressure Gauge
    (7) 4C-7090 Ball Valve

  18. Pressure test the carrier roller using the FT2724 Nitrogen Pressure Testing Tool.

    (A.) Prior to test, rotate the shaft a minimum of 20 revolutions in each direction.

    (B.) Introduce nitrogen into the lubricant cavity to a pressure of 138 kPa (20.0 psi). The cavity is to be sealed and pressure observed for 10 seconds. A pressure drop of 3.5 kPa (0.5 psi) or less is acceptable


NOTICE

Do not allow nitrogen to enter in a surge and do not use pressure in excess of 138 kPa (20.0 psi) excessive pressure may damage the seals.




Illustration 36g02393398
Use a rubber stopper to seal the lubricant cavity. Be sure to place the wide end of the stopper against the plug hole on the carrier roller cover.
(1) Rubber stopper
(2) FT2724 Nitrogen Pressure Test Tool
(3) Carrier roller cover


Illustration 37g02393401
Replace plug o-ring.

Note: Refer to Reuse and Salvage Guideline, SEBF8575, "Oil Fill Volumes for Carrier Rollers" for proper oil fill volumes and types.

Fill the carrier roller with the proper volume of oil. Replace the rubber o-ring on the plug if necessary, and install the plug into the carrier roller cover. (See Table 5 for proper plug torque value.)



Illustration 38g02393404
Tap the roller shaft to determine if the roller contains oil.

Tap the end of the carrier roller shaft with a hammer to determine whether the roller contains oil. If there is a dull thud, the roller is full. There will be a ringing noise if the roller is empty.

Table 5
Table 5
TORQUE SPECIFICATIONS FOR CARRIER ROLLERS 
Carrier Roller Group  Cover Bolt Torque Specifications  Shaft Bolt Torque Specifications  Plug Torque Specification 
Bolt Assembly Torque Bolt Assembly Torque 
1P-8717  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  75.0 ± 7.0 N·m (55.32 ± 5.16 lb ft) 
2P-3514  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  75.0 ± 7.0 N·m (55.32 ± 5.16 lb ft) 
3P-3403  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  75.0 ± 7.0 N·m (55.32 ± 5.16 lb ft) 
3T-3206  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  75.0 ± 7.0 N·m (55.32 ± 5.16 lb ft) 
3T-4618  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  N/A 
4I-7345  55 ± 10 N·m (40.57 ± 7.38 lb ft)  55 ± 10 N·m (40.57 ± 7.38 lb ft)  25.0 N·m (18.44 lb ft) 
5A-8374  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  75.0 ± 7.0 N·m (55.32 ± 5.16 lb ft) 
6K-9880  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  75.0 ± 7.0 N·m (55.32 ± 5.16 lb ft) 
6S-3609  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  N/A 
6Y-1781  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  75.0 ± 7.0 N·m (55.32 ± 5.16 lb ft) 
6Y-3908  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  75.0 ± 7.0 N·m (55.32 ± 5.16 lb ft) 
6Y-5323  55 ± 10 N·m (40.57 ± 7.38 lb ft)  55 ± 10 N·m (40.57 ± 7.38 lb ft)  25.0 N·m (18.44 lb ft) 
6Y-8168  100.0 ± 20.0 N·m (73.76 ± 14.75 lb ft)  100.0 ± 20.0 N·m (73.76 ± 14.75 lb ft)  25.0 N·m (18.44 lb ft) 
8E-0400  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  170.0 ± 20.0 N·m (125.39 ± 14.75 lb ft) 
8E-4623  100.0 ± 20.0 N·m (73.76 ± 14.75 lb ft)  100.0 ± 20.0 N·m (73.76 ± 14.75 lb ft)  25.0 N·m (18.44 lb ft) 
8E-5600  55 ± 10 N·m (40.57 ± 7.38 lb ft)  55 ± 10 N·m (40.57 ± 7.38 lb ft)  25.0 N·m (18.44 lb ft) 
396-3754  55 ± 10 N·m (40.57 ± 7.38 lb ft)  55 ± 10 N·m (40.57 ± 7.38 lb ft)  25.0 N·m (18.44 lb ft) 
423-2763  55 ± 10 N·m (40.57 ± 7.38 lb ft)  55 ± 10 N·m (40.57 ± 7.38 lb ft)  25.0 N·m (18.44 lb ft) 
8P-6256  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  75.0 ± 7.0 N·m (55.32 ± 5.16 lb ft) 
9G-7034  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  75.0 ± 7.0 N·m (55.32 ± 5.16 lb ft) 
9P-2663  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  47.0 ± 9.0 N·m (34.67 ± 6.64 lb ft)  170.0 ± 20.0 N·m (125.39 ± 14.75 lb ft) 
102-8076  37.0 ± 4.0 N·m (27.29 ± 2.95 lb ft)  45 ± 5 N·m (33.19020 ± 3.68780 lb ft)  25.0 N·m (18.44 lb ft) 
124-7280  100.0 ± 20.0 N·m (73.76 ± 14.75 lb ft)  100.0 ± 20.0 N·m (73.76 ± 14.75 lb ft)  25.0 N·m (18.44 lb ft) 
136-2393  37.0 ± 4.0 N·m (27.29 ± 2.95 lb ft)  45 ± 5 N·m (33.19020 ± 3.68780 lb ft)  25.0 N·m (18.44 lb ft) 
300-4611  100.0 ± 20.0 N·m (73.76 ± 14.75 lb ft)  135.0 ± 0.5 N·m (99.57± 0.37 lb ft)  25.0 N·m (18.44 lb ft) 
235-5974  N/A  47.0 ± 9.0 mm (1.85 ± 0.35 inch)  25 ± 4 mm (0.98 ± 0.16 inch) 
375-6431  55 ± 10 N·m (40.57 ± 7.38 lb ft)  55 ± 10 N·m (40.57 ± 7.38 lb ft)  25 ± 4 mm (0.98 ± 0.16 inch) 

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