Thermal Spray Procedures for Torque Converter Carrier - Taper Bearing Diameter{0679, 3101, 3125} Caterpillar


Thermal Spray Procedures for Torque Converter Carrier - Taper Bearing Diameter{0679, 3101, 3125}

Usage:

D9H 12U
Pipelayer:
571A (S/N: 64A1-UP)
583H PS (S/N: 61A1-UP)
583H (S/N: 78V1-UP)
583K PS (S/N: 78V1-UP)
594 (S/N: 96V1-UP)
594H (S/N: 96V1-UP)
Track-Type Tractor:
D8 (S/N: 77V1-UP)
D8H (S/N: 46A1-UP)
D8K SPL PS (S/N: 77V1-UP)
D9 (S/N: 66A1-UP; 90V1-UP)
D9G PS QT (S/N: 66A1-UP)
D9H SXS PS PVZ (S/N: 12U1-UP)
D9H SPL PS (S/N: 90V1-UP)
D9H PS DF (S/N: 97V1-UP)
D9H PS DR (S/N: 98V1-UP)
D9H LH SXS PS (S/N: 99V1-UP)

Introduction

Table 1
Revision     Summary of Changes in SEBF2115    
00     Information removed from SERF8704 (Flame Spray Guide CD) and formatted for delivery in SIS.    

© 2012 Caterpillar All Rights Reserved.This guideline is for the use of Cat dealers only. Unauthorized use of this document or the proprietary processes therein without permission may be violation of intellectual property law.

This Reuse and Salvage Guideline contains the necessary information in order to allow a dealer to establish a parts reusability program. Reuse and salvage information enables Caterpillar dealers and customers to benefit from cost reductions. Every effort has been made in order 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 Reuse and Salvage Guideline must be used with the latest technical information that is available from Caterpillar.

For questions or additional information concerning this guideline, submit a form for feedback in the Service Information System. In order to address an urgent issue, use the following resources in order to communicate your request to Caterpillar Repair Process Engineering:

  • Caterpillar Dealer Technical Communicator

  • Dealer Solution Network

  • Caterpillar Technical Representative

  • Knowledge Network

For further information on the equipment needed to perform thermal spray processes, refer to the following publications:

  • Special Instruction, SEBF9236, "Fundamentals of High Velocity Oxygen Fuel (HVOF) Spray for Reconditioning Components"

  • Special Instruction, SEBF9238, "Fundamentals of Arc Spray for Reconditioning Components"

  • Special Instruction, SEBF9240, "Fundamentals of Flame Spray for Reconditioning Components"

Canceled Part Numbers and Replaced Part Numbers

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

Important Safety Information

Work safely. 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 in order to perform these functions properly. Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive. If a tool, a procedure, a work method, or operating technique that is not recommended by Caterpillar is used, you must ensure that it is safe for you and for other people to use. You should ensure that the product will not be damaged or the product will not be made unsafe by the operation, lubrication, maintenance, or the repair procedures that are used.

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

Improper operation, lubrication, maintenance or repair of this product can be dangerous and could result in injury or death.

Do not operate or perform any lubrication, maintenance or repair on this product, until you have read and understood the operation, lubrication, maintenance and repair information.

----------------------

Safety precautions and warnings are provided in this manual and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons.

The hazards are identified by the safety alert symbol which is followed by a signal word such as danger, warning, or caution. The "WARNING" safety alert symbol is shown below.




Illustration 1g03023481

This safety alert symbol means:

Pay attention!

Become alert!

Your safety is involved.

The message that appears under the safety alert symbol explains the hazard.

Operations that may cause product damage are identified by "NOTICE" labels on the product and in this publication.

Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The safety information in this document and the safety information on the machine are not all inclusive. You must determine that the tools, procedures, work methods, and operating techniques are safe. You must determine that the operation, lubrication, maintenance, and repair procedures will not damage the machine. Also, you must determine that the operation, lubrication, maintenance, or the repair procedures will not make the machine unsafe.

The information, the specifications, and the illustrations that exist in this guideline are based on information which was available at the time of publication. The specifications, torques, pressures, measurements, adjustments, illustrations, and other items can change at any time. These changes can affect the service that is given to the product. Obtain the complete, most current information before you start any job. Caterpillar dealers can supply the most current information.

Part Description

Table 2
Base Metal     Cast Iron    
Hardness     N/A    

Flame Spray Equipment and Procedure

Table 3
Maximum Surface Finish     3.175 Micrometers (125.0000 Microinches)    
Reason for Spraying     Wear    
Mating Part Contact Area & Material     Taper bearing race    
METCO Equipment Type     6P-II    
Metco Material     452 and 453    
Finished Thickness     As Required    
Finishing Allowance    
0.51 - 0.64 mm (0.020 - 0.025 inch) per side    
Spray Angle     90°    
Substrate Pre-Heat Temperature    
85° C (185° F)    
Substrate Temperature During Spraying Not to Exceed    
148° C (300° F)    
Auxiliary Cooling     Not required    
Rotation/Traverse Device     Lathe or turntable    
Rotation/Traverse Speed    
91.4 SMPM (300.00 SFPM)    
Surface Preparation Method     Grit Blast    
Finishing Method     Grind, machine    
Machining Equipment Type     Lathe    
Recommended Cutter Grade     883 carboloy or equivalent    
Remarks     Refer to Special Instruction, SEBF8007, "Salvage Procedures For Worn Carriers Used in Torque Converters - 1T-0630, 1T-0611, and 1T-0670 on D8 and D9 Tractors"    

Table 4
Flame Spray Process (6P)     Procedure     Check List    
Clean Part     Degrease in hot caustic solution        
Undercut     Not required        
Chamfer     All edges - 45° x
0.76 mm (0.030 inch)    
   
Remove Oxide     Emery paper        
Mask for Blast     Use metal mask or duct tape        
Blast Equipment     Pressure Blast        
Grit Type and Size     G-25 angular steel grit        
Blast Air Pressure    
620 kPa (90.0 psi)    
   
Blast Nozzle to Work Distance    
51 mm (2.0 inch)    
   
Remove Blast Mask     Remove        
Mask for Spray     Use metal mask and METCO Anti-Bond        
Spray Equipment Type     6PII        
Nozzle     6P7C-K "K" Nozzle        
Air Capacity/Pressure     6P-3/Cooling air -
140 kPa (20.0 psi)    
   
Extension     N/A        
Air Jets/Pressure     N/A        
Oxygen Pressure    
210 kPa (30.0 psi)    
   
Oxygen Flow    
1190 L/h (42.0 cfh)    
   
Fuel Gas Pressure    
100 kPa (15.0 psi)    
   
Fuel Gas Flow    
1415 L/h (50.0 cfh)    
   
Carrier Gas Pressure    
380 kPa (55.0 psi)    
   
Carrier Gas Flow    
1050 L/h (37.0 cfh)    
   
Spray Rate/Build Up    
5.5 kg (12.00 lbs) per hour
0.10 - 0.15 mm (0.004 - 0.006 inch) per pass    
   
Gun to Work Distance    
229 mm (9.0 inch)    
   
Rotation Speed of Part (RPM)     Set RPM for desired SFPM        
Rotation Speed of Part    
91.4 SMPM (300.00 SFPM)    
   
Traverse Rate of Gun    
15.24 SMPM (50.000 SFPM)    
   
Gun Fixturing Method     Machine mount or hand held        
Top Coat/Thickness     As required        
Finishing Equipment     Lathe        
Part/Cutter Rotation    
45.72 - 54.86 SMPM (150.000 - 180.000 SFPM)    
   
Traverse Speed    
0.51 mm (0.002 inch) -
0.10 mm (0.004 inch) per revolution    
   
Depth of Rough Cut    
0.25 mm (0.010 inch) -
0.51 mm (0.020 inch)    
   
Depth of Finish Cut    
0.13 mm (0.005 inch) -
0.25 mm (0.010 inch)    
   

- Do not direct flame on area to be sprayed.

Specifications




Illustration 2g03023536

For dimensional specifications refer to Special Instruction, SEBF8007, "Salvage Procedures For Worn Carriers Used in Torque Converters - 1T-0630, 1T-0611, and 1T-0670 on D8 and D9 Tractors".

Caterpillar Information System:

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