0115210 JOHNSON SCREW, Knob, carburetor

Introduction
This Special Instruction provides the procedure to repower a 651E and 657E Wheel Tractor-Scraper. The replacement engine will be a Tier III C18 engine. See Table 1 for the engine arrangement numbers. The 651E and 657E Wheel Tractor-Scraper was originally equipped with a 3412 engine. The original 3412 engine is a Tier 1 Level engine . This Special Instruction will provide the information to install the Tier III level replacement engine.
Table 1
Engine Engine Arrangement
Model Original Engine Replacement Engine
C18 123-0199 Engine 277-8269 Complete Engine
149-6377 Engine This Special Instruction does not include procedures that can be found in your existing manuals. Refer to the original Service Manual, Parts Manual, and Operation and Maintenance Manual for more information.When you have completed this procedure, prepare the machine for service. Refer to the Operation and Maintenance Manual.Note: Do not perform any procedure in this Special Instruction until the information has been read and understood.Reference: Service Manual, Parts Manual, Operation and Maintenance Manual.This instruction contains some procedures that come from dealer feedback. The emissions replacement engine is not a direct replacement. Additional parts and labor hours may be needed to complete this engine replacement. Variations in machine serial number breaks or options could cause discrepancy in the modifications, in the required parts, and in labor hours to complete this procedure. This documentation is a guideline for Cat dealer personnel to complete the repower procedure. If errors are found, contact the Caterpillar Emissions Solutions Group. This list is the information that will be required:
Machine serial number
Original engine arrangement number
Emissions engine arrangement number
Original engine serial number
Details of the error
Photos of error and photos after the proposed solutionRegister the Retrofit
Because retrofits to a prime product will change the configuration of the product, updating the configuration in SIMSi and AIMS is important. If the retrofit information is not provided, Caterpillar will not be able to provide important product updates.The following information includes instructions on registering the updates and retrofits.
When performing a retrofit installation, record the vital information in Table 2Note: If the procedure is performed by the customer, ask the customer to record the proper information.
Table 2
Repair Date
Product Serial Number
Service Hours or Service Meter Units
Removed Component Part Number(1)
Removed Component Serial Number(1)
Installed Component Part Number(2)
Installed Component Serial Number(3)
(1) Only applies if a component is replaced by a retrofit component. If the product is an engine, and the product retrofit is a kit for upgrading the engine, disregard the "Removed Component" information. Refer to detailed instructions in Step 3 for more information.
(2) Record the highest level retrofit kit, arrangement, or group part number.
(3) Most retrofits will not have a serial number. Exceptions include emissions repower engines and diesel particulate filters.
Update the product configuration by entering the information from Table 2 into SIMSi and AIMS.Note: For retrofits that have a Caterpillar serial number, the AIMS application is "JIZ111-08". For retrofits that do not have a Caterpillar serial number, the AIMS application is "JIZ111-07".
For detailed instructions on updating the product configuration, refer to Special Instruction, REHS5097, "Instructions to Register the Retrofit"Safety
Personal injury or death can result from sudden machine movement.Sudden movement of the machine can cause injury to persons on or near the machine.To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.
Do not attempt to assemble this machine until you read and you understand the assembly instructions.Improper assembly procedures could result in injury or death.
Personal injury or death can result from improper lifting or blocking.When a hoist or jack is used to lift any part or component, stand clear of t