0397571 JOHNSON CARB. BODY ASSY.

Introduction
Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.Introduction
The purpose of the engine rerate process is to enable Cat Dealers to reconfigure an electronic engine to a new power rating. This process may be required when a Dealer orders an engine, but due to a subsequent change in requirements, is left with inventory that is different to what is needed by the customer.The engine rerate is achieved by changing the following:
The engine flash file
The engine emissions control labels
The engine manufacturer business records that describe the engine manufacturedAll three of these elements must be addressed for the new engine configuration to remain in a certified state and therefore conform to applicable emissions laws.Note: Cat Dealers are expected to order engines in the configuration they are planned to be sold and to use the rerate process by exception. Rerates will be rejected from Dealers that order engines intending to use the rerate process to achieve the intended configuration.Note: Engine rerates are not permitted where any kind of engine hardware change is required.Note: Multiple rerates on the same engine are not permitted.Note: Rerating of Flex engines is not permitted.Note: Rerates are not conducted on sell-off engines after the applicable emissions stage has ended for the engines in questionThe current cost of an engine rerate is 250 USD. This cost may be revised if the volume of requests increases.General Comments
To update engine manufacturer business records (Technical Marketing Information (TMI)), a new engine arrangement number is required. Include the new arrangement number in the request form. If the arrangement number is unknown, a new arrangement number will be required. Contact the account manager to discuss a new arrangement number.Rerates are only permitted within the same group code. Refer to column 1 in Table 1, Table 2, Table 3, Table 4, Table 5, and Table 6.Requests for rerates are to be made by the Dealer, in partnership with the account manager, using the "JIRA" service tool : "https://ercrequestspilotprogram.atlassian.net/servicedesk/customer/portal/2/group/19".If an engine is rerated, the existing emissions control label must be removed and a corrected label applied. The accuracy of the emissions control labels is a conformance obligation. Take photographs of the engine emissions control labels before and after the engine rerate. The photographs must be submitted through the JIRA service tool as part of the rerate process.New emissions labels and serial number plates will be despatched from Peterborough, U.K. If premium shipment is required, include a DHL account number in the GLS label request form. UPS shipment is not available from the U.K.If an engine rerate request is approved, factory passwords will be issued when the photographs with the old and new emissions labels have been received through the "JIRA" service tool.Download the applicable flash file and use Cat® Electronic Technician (ET) to install the flash file. Refer to Troubleshooting, ECM Software - Install for the correct procedure. Factory passwords will be required to complete the software installation. Refer to Troubleshooting, Factory Passwords for more information.If an engine rating has new FLS/FTS numbers, use Cat® ET to configure the FLS/FTS to the new values.Rerate of Industrial Power Units must have prior approval to determine if the appropriate cooling package is installed.The Dealer is responsible for ensuring that the Application and Installation (A & I) audit is completed.As Cat machines have bespoke ratings, they are not included in this document. The requestor, along with Engineering Services, is responsible for establishing that a rerate falls within the rules allowed regarding hardware configuration before submitting a request through "JIRA".There are occasions where Caterpillar creates a unique arrangement for customer validation purposes. In these circumstances, Caterpillar reserves the right to decline the request based on approval processes including product management, applications, engineering services, and the Emissions Regulations and Conformance Group.Affected Products
Refer to the Tables below for the applicable group codes. Rerates are only permitted where the current and intended ratings are within the same group code.C4.4 SNP: S/N:W23 and S/N:433
Table 1
Group Code Rating Option Code Rated kW Rated HP Rated RPM Flash File Part Number Interlock Code Test Spec
100 AU111 68 91 2200 478-4696 119 T4143
100 AU112 74 99 2200 479-6073 113 T4144
200 AU110 74 99 2200 479-5956 115 T4388
200 AU109 82 110 2200 478-4642 114 T4146
200 AU113 87 117 2200 478-4611 15 T4148
300 AU108 102 137 2200 479-6548 118 T4344
300 AU115 106 142 2200 479-6565 7 T4154 C7.1 SNP: S/N:G9R and S/N:G92
Table 2
Group Code Rating Option Code Rated kW Rated HP Rated RPM Flash File Part Number Interlock Code Test Spec
100 AU001 116 156 2200 481-0028 35 T4124
100 AU002 129 173 2200 481-0046 36 T4324
100 AU003 129 173 2500 485-5477 56 T4402
100 AU004 151 202 2200 481-0035 37 T4048
200 AU006 168 225 2200 481-0040 44 T4096
200