Thermal Spray Procedures for Tyrone Drive Shaft (Pump Gear){0679, 3066, 5073} Caterpillar


Thermal Spray Procedures for Tyrone Drive Shaft (Pump Gear){0679, 3066, 5073}

Usage:

769C 01X
Articulated Truck: All
Backhoe Loader: All
Compact Wheel Loader: ALL
Earthmoving Compactor: All
Integrated Toolcarrier: All
Landfill Compactor: All
Load Haul Dump: All
Motor Grader: All
Off-Highway Truck/Tractor: All
Pipelayer: All
Soil Compactor: All
Track-Type Loader: All
Track-Type Skidder: All
Track-Type Tractor: All
Underground Articulated Truck: All
Wheel Dozer: All
Wheel Feller Buncher: All
Wheel Loader: All
Wheel Skidder: All
Wheel Tractor-Scraper: All

Introduction

Table 1
Revision     Summary of Changes in SEBF2129    
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, ensure that it is safe for you and for other people to use. Ensure 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 1g03050222

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     Steel    
Hardness     62-65 RC    

Flame Spray Equipment and Procedure

Table 3
Maximum Surface Finish     0.38 - 0.51 Micrometers (15-20 Microinches)    
Reason for Spraying     Wear    
Mating Part Contact Area & Material     Seal, lip    
Metco Equipment Type     6P-II    
Metco Material     447 or 453    
Finished Thickness     0.25 mm (0.010 inch) -
0.51 mm (0.020 inch)    
Finishing Allowance    
0.25 mm (0.010 inch) per side    
Spray Angle     90° to part    
Substrate Pre-Heat Temperature    
38° C (100° F) (See Note Below)    
Substrate Temperature During Spraying Not to Exceed    
149° C (300° F)    
Auxiliary Cooling     METCO AJ, if required    
Rotation/Traverse Device     Lathe    
Rotation/Traverse Speed    
91.4 SMPM (300.00 SFPM) minimum    
Surface Preparation Method     Undercut, grit blast    
Finishing Method     Grind    
Grinding Equipment Type     Cylindrical or tool post    
Recommended Wheel     46J or 36K silicon carbide    

Note: Do NOT direct flame on area to be sprayed.

Table 4
Flame Spray Process (6P)     Procedure     Check List    
Clean Part     Non-oil base solvent wash        
Undercut     If part has been chrome plated, remove chrome        
Chamfer     All edges 45° x
0.76 mm (0.030 inch)    
   
Remove Oxide     Emery paper - 60 grit        
Mask for Blast     Use metal mask or duct tape        
Blast Equipment     Pressure blast        
Grit Type and Size     METCOLITE "C" Aluminum Oxide        
Blast Air Pressure    
621 kPa (90.0 psi)    
   
Blast Nozzle to Work Distance    
51 mm (2.0 inch)    
   
Remove Blast Mask     Remove        
Mask for Spray     Use metal mask/METCO Anti-Bond        
Spray Equipment Type     6P-II        
Auxiliary Cooling     METCO AJ, if required        
Nozzle     6P7C-K "K" Nozzle        
Air Capacity/Pressure     6P-3 Cooling air -
207 kPa (30.0 psi) -
241 kPa (35.0 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 lb) per hour    
   
Gun to Work Distance    
229 mm (9.0 inch)    
   
Rotation Speed of Part (SFPM)    
91.4 SMPM (300.00 SFPM) minimum    
   
Traverse Rate of Gun (SFPM)    
15 SMPM (50.00 SFPM)    
   
Gun Fixturing Method     Hand held        
Top Coat/Thickness     As required        
Finishing Equipment     Cylindrical or tool post grinder        
Depth of Rough Cut    
0.03 mm (0.001 inch) per pass to
0.05 mm (0.002 inch) of finish    
   
Depth of Finish Cut     Dress wheel if necessary -
0.03 mm (0.001 inch) per pass    
   
Additional Finish Method     Polish with 400 grit emery, if necessary        

Specifications




Illustration 2g03050231

Note: For Dimensional Specifications refer to SEBF8161.

Caterpillar Information System:

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