- 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 non-PPR Sealed and Lubricated Track
- Machines with Greased Lubricated Track (GLT)
- Track Drills
- MD5150C (S/N: SEY1-UP)
Introduction
Revision | Summary of Changes in SEBF8593 |
15–19 | Added serial number prefixes for New Product Introduction. |
© 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 bulletin enables dealers and customers to benefit from cost reductions made possible through an established parts reusability and salvage program. Every effort has been made to provide the most current and relevant information known to Caterpillar Inc. Caterpillar makes ongoing changes and improvements to Caterpillar products. This bulletin must be used with the latest technical information available from Caterpillar to ensure that such changes and improvements are incorporated where applicable.
For technical questions when using this document, work with your Dealer Technical Communicator (TC).
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References
Reference: Undercarriage Reconditioning Guide, SEBF8599
Reference: Servicing Handbook, PEKP9400, "Custom Track Service Handbook"
Reference: Parts Sales Kit, PECP3003
Reference: Catalog, NENG2500, "Dealer Service Tools Catalog"
Reference: Undercarriage Reconditioning Bulletin, SEBF8584, "Disassembly and Assembly Procedures for Track Rollers with Conventional Duo-Cone Seals".
Reference: Undercarriage Reconditioning Bulletin, SEBF8581, "Disassembly and Assembly Procedures for Track Rollers with Inverted Duo-Cone Seals"
Reference: Undercarriage Reconditioning Bulletin, SEBF8579, "Snap Ring Roller Disassembly and Assembly Procedures"
Reference: Undercarriage Reconditioning Bulletin, SEBF8568, "Hydraulic Excavator Roller Disassembly and Assembly Procedures"
Reference: Undercarriage Reconditioning Bulletin, SEBF8587, "Large Mining Products Roller Disassembly and Assembly Procedures"
Reference: Undercarriage Reconditioning Bulletin, SEBF8580, "Carrier Roller Disassembly and Assembly Procedures"
Reference: Undercarriage Reconditioning Bulletin, SEBF8555, "Duo-Cone Seal Assembly and Installation Procedure for the 963 and 973 Track-Type Loaders"
Reference: Undercarriage Reconditioning Bulletin, SEBF8511, "Reusability Recommendations for Duo-Cone Seals"
Reference: Undercarriage Reconditioning Bulletin, SEBF8506, "Conventional (Dry) Welding Procedure for Rollers and Idlers"
Reference: Undercarriage Reconditioning Bulletin, SEBF8507, "Procedure for Water-Cooled Welding of Track Rollers"
Reference: Undercarriage Reconditioning Bulletin, SEHS8515, "Repair Procedure for Retainer Assemblies on Track Idlers and Rollers"
Reference: Special Instruction, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals"
Reference: Special Instruction, SEHS8483, "Assembly and Installation of Inverted Duo-Cone Seals"
Reference: Special Instruction, SEHS8484, "Tool and Specification Chart for Conventional Duo-Cone Seal Gp"
Reference: Special Instruction, SEHS8707, "Installation of Replacement Track Roller/Idler Bearings"
Reference: Special Instruction, SEHS8974, "Tool and Specification Chart for Inverted Duo-Cone Seals"
Reference: Wall Chart, RENR3961, "Disassembly and Assembly Procedure for Track Rollers with Conventional Duo-Cone Seals"
Reference: Wall Chart, RENR2059, "Disassembly and Assembly Procedures for Rollers with Inverted Duo-Cone Seals"
Reference: Wall Chart, RENR3962, "Disassembly and Assembly Procedures for Snap Ring and Oval Track Rollers"
Undercarriage Shop
Description |
(1) Is the undercarriage shop clean and orderly? |
(2) Is the tooling stored orderly, clearly identified and easily accessible? |
(3) Are the drawers and shelves used for storing the tooling clearly labeled? |
(4) Is the tooling organized by part number? |
(5) Are the tools and materials necessary for roller rebuilds accessible and stored near the workstation? (Impact wrench with regulator or socket/end wrenches, torque wrench, 99% isopropyl alcohol, clean lint free towels, seal installers.) |
(6) Does the technician wear eye protection? |
(7) Does the technician wear ear protection while using the impact wrench? |
(8) Is the undercarriage shop equipped with adequate lighting for effective operation of the equipment? |
(9) Is adequate floor space available for servicing the rollers efficiently? |
(10) Does the layout of the undercarriage shop allow for efficient workflow processing? |
(11) Are the rebuild processes free from bottlenecks? |
Comments: |
Preparation for Disassembly
Description |
(1) Is Wall Chart, RENR2059, "Disassembly and Assembly Procedures for Rollers with Inverted Duo-Cone Seals", Wall Chart, RENR3961, "Disassembly and Assembly Procedures for Rollers with Conventional Duo-Cone Seals", and Wall Chart, RENR3962, "Disassembly and Assembly Procedures for Snap Ring and Oval Track Rollers" current and available? |
(2) Are the rollers thoroughly washed before the rollers are brought into the undercarriage shop? |
(3) Are the plastic plugs and rubber stoppers removed using a |
(4) Is the oil drained or vacuumed from the rollers? |
(5) Are the rollers measured for wear and the wear measurements recorded? |
(6) Is the service documented in a work order? (leaking seals, assembly measurements, reuse information, CTS inspection report) |
Comments: |
Disassembly and Inspection
Description |
(1) Are the retainer bolts removed and stored in a container? |
(2) Are the thrust washers inspected for reuse? |
(3) Is the inside and outside diameters of the end collars checked for reusability on conventional rollers? |
(4) Are the Duo-Cone seals inspected for reuse? |
(5) Are the Duo-Cone seals kept in matching pairs if reused? |
(6) Is the shaft-to-bearing clearance measured? |
Comments: |
Preparation for Assembly
Description |
(1) Is Wall Chart, RENR2059, "Disassembly and Assembly Procedures for Rollers with Inverted Duo-Cone Seals", Wall Chart, RENR3961, "Disassembly and Assembly Procedures for Rollers with Conventional Duo-Cone Seals", and Wall Chart, RENR3962, "Disassembly and Assembly Procedures for Snap Ring and Oval Track Rollers" current and available? |
(2) Is all of the debris removed from the roller and the roller components? |
(3) Are the roller components properly cleaned with 99% isopropyl alcohol or another approved cleaning agent? |
(4) Is 369-9451 Petro Gel Grease (O-Ring Assembly Compound) used to install the new O-rings? |
(5) Are the Duo-Cone seals inspected for reuse? |
Comments: |
Conventional Duo-Cone Seals
Description |
(1) Are the shop personnel using Wall Chart, RENR3961, "Disassembly and Assembly Procedures for Rollers with Conventional Duo-Cone Seals" for the correct procedures and specifications? |
(2) Are the toric rings properly installed onto the seal rings? |
(3) Are the Duo-Cone seals correctly installed into the end collars and retainers? |
(4) Is the seal height and runout measured on the assembled seals? The difference in height must not exceed |
(5) Are the bearings lubricated with SAE30 oil? |
(6) Are the thrust washers inspected and installed correctly? |
(7) Are the retainer bolts tightened to the proper torque using a socket/end wrench or regulated impact wrench? |
(8) Are the ring faces on the Duo-Cone seals cleaned using a lint free towel? |
(9) Is a thin film of oil applied to the entire face of the Duo-Cone seal with a horse hair brush or another contaminant free method? |
(10) Is the correct tooling used to install the end collars? |
(11) Is the end play measured on the assembled roller? |
(12) Is 99% isopropyl alcohol used for assembly of the Duo-Cone seals? |
(13) Is the process completed in a timely manner in order to minimize contamination? |
(14) Is the roller shaft spun 20 times in each direction? |
Comments: |
Inverted Duo-Cone Seals
Description |
(1) Are the shop personnel using Wall Chart, RENR2059, "Disassembly and Assembly Procedures for Rollers with Inverted Duo-Cone Seals" for the correct procedures and specifications? |
(2) Is the seal ramp on the shaft in good condition (not too smooth)? |
(3) Are the toric rings in good condition? |
(4) Are the bearings lubricated with SAE30 oil? |
(5) Is the toric stabilizer installed on the shaft? |
(6) Is the Duo-Cone seal installed on the shaft with the correct seal installer? |
(7) Is the Duo-Cone seal installed onto the seal ramp on the shaft using a rotary motion? |
(8) Are the Duo-Cone seals installed without deforming the toric ring? |
(9) Is the Duo-Cone seal straight on the shaft with a height difference of no more than |
(10) Are the Duo-Cone seals installed in the retainers and measured for the correct height? |
(11) Is the Duo-Cone seal height from the shaft thrust face measured at four locations 90 degrees apart? |
(12) Is a thin layer of oil applied to the entire seal ring face? |
(13) Is 99% isopropyl alcohol used for assembly of the Duo-Cone seal in the retainer? |
(14) Is the process completed in a timely manner in order to minimize contamination? |
(15) Are the retainer bolts tightened to the correct torque? |
(16) Is the end play measured on the assembled roller? |
(17) Is the roller shaft spun 20 times in each direction? |
Comments: |
Snap Ring Rollers
Description |
(1) Are the shop personnel using Wall Chart, RENR3962, "Disassembly and Assembly Procedures for Snap Ring and Oval Track Rollers" for the correct procedures and specifications? |
(2) Is the correct installation tool used to unload the snap ring? |
(3) Are the Duo-Cone seals correctly installed into the end collars? |
(4) Is the seal height measured at four locations 90 degrees apart? |
(5) Is the correct tooling used to install the bushing into the roller? |
(6) Is the snap ring installed? |
(7) Is a thin layer of oil applied to the entire seal ring face? |
(8) Is the locking-ring installed in the end collar? |
Comments: |
Cleaning
Description |
(1) Are the rollers cleaned using either high-pressure wash or steam? |
(2) Is washing of the rollers a one-man operation? (One man should be able to perform this function) |
(3) Is the wash area located near the workstation to ensure efficient workflow? (Minimum steps and time between operations) |
(4) Is the washing equipment used for cleaning the roller components also used for cleaning the track and idler components? (Minimum steps and time between operations) |
(5) Is the cleaning process for roller components shared with other cleaning operations such as track and idler components? Do these cause time delays? |
Comments: |
Miscellaneous
Description |
(1) Do the lifting cranes provide adequate coverage for lifting heavy equipment and tooling? |
(2) Is the hydraulic press used for servicing the rollers adequate to perform the necessary procedures for reconditioning? |
(3) Is 99% isopropyl alcohol used to install the Duo-Cone seals and clean the roller components? |
Comments: |
Description |
(1) Is the air pressure regulated at |
(2) Is the oil pressure regulated at |
(3) Is the nitrogen regulated at |
(4) Is the nitrogen regulated at |
(5) Is the oil heated for at least 10 minutes? |
(6) Is the system purged? |
(7) Are the service indicators for the oil filters checked periodically? |
(8) Is the overall condition of the machine good? |
Comments: |
Description |
(1) Is the nitrogen pressure maintained at |
(2) Is the ball valve and pressure differential valve closed? |
(3) Is the pressure observed for 10 seconds without a pressure drop of |
Comments: |
Filling
Description |
(1) Are the shop personnel using Wall Chart, RENR2059, "Disassembly and Assembly Procedures for Rollers with Inverted Duo-Cone Seals", Wall Chart, RENR3961, "Disassembly and Assembly Procedures for Rollers with Conventional Duo-Cone Seals", and Wall Chart, RENR3962, "Disassembly and Assembly Procedures for Snap Ring and Oval Track Rollers" for the oil fill volumes and procedures? |
(2) Is the rubber stopper lubricated with a light-weight oil to promote expansion and installed with the proper stopper installer? |
(3) Is the roller filled to 80% to 90% with SAE30 oil and the plastic plug installed? |
(4) Is the oil filtered properly to prevent contamination? |
(5) Do air bubbles exist in the stream of oil? Air bubbles can be caused by a worn out pump, low oil level, and broken pipes. |
(6) Is there a loss of vacuum? Create a vacuum with finger over the lubricator tip, release the vacuum button, and check for loss of vacuum by viewing the gauge. (If loss of vacuum is observed, check all connections between the button (valve) and the tip.) |
(7) Check the accuracy of gauges. Do the gauges zero? Are the gauges broken or have a broken glass? Replace any damaged gauges. |
(8) Is the overall condition of the hoses and related equipment in good condition? |
(9) Does the fill and vacuum button have an over center finger or palm pad to reduce fatigue? |
(10) Is the regulator set at a maximum of |
(11) Electrical controls auto lubricator
(a) Is vacuum set at a minimum of (b) Is pressure set at a minimum of (c) Is partial vacuum set at zero? |
(12) Is the roller shaft gently tapped with a hammer to ensure that the roller contains oil? |
Comments: |
Quality and Contamination
Description |
(1) Do the current methods and procedures comply with the procedures outlined in the Undercarriage Reconditioning Bulletins and Wall Charts? |
(2) Are the disassembled components protected from contamination of dirt or debris? |
(3) Is the general condition of the work area clean and orderly? |
(4) Is any welding or grinding separated from the Disassembly and Assembly area? |
(5) Is the area dirty with airborne contamination? |
(6) Are the work benches neat and clean? |
(7) Do all the components being reconditioned meet the specifications that are outlined in the Undercarriage Reconditioning Bulletins? |
(8) Are periodic inspections on the components performed during the rebuild process? |
(9) Are the rollers cleaned with high-pressure water before disassembly? |
(10) Is the end play measured on each assembled roller? |
(11) Is a pressure test performed on each roller prior to lubrication? |
Comments: |
Literature and Materials
Description |
(1) Is Undercarriage Reconditioning Guide, SEBF8599 current and complete? |
(2) Is Servicing Handbook, PEKP9400, "Custom Track Service Handbook" current and available to the technicians? |
(3) Is Parts Sales Kit, PECP3003 current and available to the technicians? |
(4) Is the technician or supervisor maintaining a Service Logbook? |
(5) Is the media listed in the "References" section current and available? |
Comments: |
Recommendations
Notes