ENGINE AR 1077350 - Caterpillar

Illustration 12 g02384552
Roller/idler rebuild area with various types of welders.
Various types of equipment can be incorporated into an undercarriage shop as shown in Illustration 12. This shop has a dry-type welder for idlers, two single head water-cooled welders, and one dual head water-cooled welder for rebuilding rollers. The work-flow shown in Illustration 12 is typical for idler and roller welding and roller (reshell) operations.Individual Work Stations and Procedures
Illustration 13 g02384516
Illustration of rollers on conveyor near a conventional welder.
Illustration 14 g02384517
Illustration of roller flange surface being dry-welded.
Illustration 15 g02384536
Illustration of conventional (dry) welder being used to rebuild an idler.
For detailed rebuilding information, refer to Bulletin, SEBF8506, "Conventional (Dry) Welding Procedure for Rollers and Idlers".For detailed rebuilding information, refer to Bulletin, SEBF8552, "Idler Weld Rebuild Procedure".For detailed dimensional information, refer to Bulletin, SEBF8569, "Reconditioning Dimensions for Track Rollers".For detailed dimensional information, refer to Bulletin, SEBF8570, "Reconditioning Dimensions for Carrier Rollers".For detailed dimensional information, refer to Bulletin, SEBF8571, "Reconditioning Dimensions for Idlers".
Illustration 16 g02384537
Illustration of twin head water-cooled roller/idler station.
Illustration 17 g02384540
Twin head water-cooled station with two welders. Typical arrangement where one welder is primarily used to rebuild idlers, the other to rebuild rollers.
For detailed rebuilding information, refer to Bulletin, SEBF8507, "Procedure for Water-Cooled Welding of Track Rollers".
Illustration 18 g02384542
Illustration of roller/idler press.
Illustration 19 g02384544
Illustration of carrier roller (reshell) station.
The following table contains important undercarriage procedures to assist with decisions regarding work-flow and equipment layout.
Table 2
ADDITIONAL PROCEDURES
Reconditioning and Replacing (Rebuilding and reshelling criteria)
SEBF8558 "Guideline for Reusable Track Parts" (Reuse information for track links, track link pins, track link bushings, and for SystemOne link/box reuse criteria).
SEBF8596 "Guideline for Roller and Idler Component Reuse" (Inspection criteria).
SEBF8553 "Reusability Guidelines and Installation Procedures for Split Master Links"
PEKP9400 "Custom Track Service Handbook" (Service handbook for technicians).
Idler - Detailed Procedures
SEBF8495 "Hydraulic Excavator Idler Disassembly and Assembly Procedures"
SEBF8585 "Disassembly and Assembly Procedures for Idlers with Conventional Duo-Cone Seals"
SEBF8582 "Disassembly and Assembly Procedures for Idlers with Inverted Duo-Cone Seals"
SEBF8956 "Disassembly and Assembly Procedures for Idlers of Track-Type Loaders"
SEBF8616 "Disassembly and Assembly Procedures for Landfill Idlers"
SEBF8617 "Disassembly and Assembly Procedures for Sound Suppressed Idlers"
SEBF8956 "Disassembly and Assembly Procedures for Idlers of Track-Type Loaders"
Roller - Detailed Procedures
SEBF8587 "Large Mining Products Roller Disassembly and Assembly Procedures"
SEBF8579 "Snap Ring Roller Disassembly and Assembly Procedures"
SEBF8580 "Carrier Roller Disassembly and Assembly Procedures"
SEBF8568 "Hydraulic Excavator Roller Disassembly and Assembly Procedures"
SEBF8584 "Disassembly and Assembly Procedures for Track Rollers with Conventional Duo-Cone Seals"
Track Group(1)/Track Assembly- Detailed Procedures
SEBF8546 "Shop Repair Procedure for Positive Pin Retention Track"
SEBF8557 "Shop Repair Procedure for Non-PPR Sealed and Lubricated Track"
SEHS8881 "Repair Procedure For Quad Track"
SEBF8609 "Shop Repair Procedure for Sleeve Bearing Track"
(1) Track Group consists of the track assembly plus shoes.