LINE AS-FUEL INJECTION 1640302 - Caterpillar

Performance Data for Governors Used on 1.1 Liter Engines When Using the 1U7326 Governor Calibration BenchIntroduction
Some publications have referenced the Governor Performance Data as a microfiche library.At this time, the Governor Performance Data is available ONLY in this Special Instruction.In the interim, until released as microfiche, use the data in this instruction. The specifications in this instruction were current at time of publication.This instruction will be updated (revised) whenever a new, or factory rebuilt, governor is released and/or if there is a change to the existing specifications. The specifications in this instruction are to be used ONLY when performing the following procedures (as shown in SEHS8868, Using the 1U7326 Governor Calibration Bench):* Adjustment of a New or Rebuilt Mechanical Governor on the Calibration Bench* Using the Calibration Bench to Check a Previously Adjusted Mechanical GovernorReference: Parts Book Service Manual ... Systems Operations, Testing And Adjusting; Disassembly And AssemblySpecial Instruction SEHS8868 ... Using the 1U7326 Governor Calibration BenchFuel Setting and Related Information Microfiche Library. (Use the appropriate library for the engine application.)Identifying the Governor and Governor Change Level
The Governor Group Number and Governor Change Level is found on the information plate of each governor.The Governor Group Number and Governor Change Level MUST be identified before using any of the specifications shown in the Governor Performance Data section in this instruction.The Group Number defines both the consist of the governor and the adjustments. The Governor Change Level defines the consist of the governor that MAY or MAY NOT affect (change) the governor's Governor Performance Data.Example
The governor has been identified as:* 7C6069 with CHANGE LEVEL 03 and ...* The Governor Performance Data, for 7C6069 Governor Group, shows only CHANGE LEVEL 05 and ...* The COMMENTS portion is blank (no instructions). ResultThis shows that the 7C6069 Governor Group has had factory changes that have NOT affected the Governor Performance Data as shown in this Instruction. ActionUse the data as shown for CHANGE LEVEL 05.Example
The governor has been identified as:* 7C7070 with CHANGE LEVEL 03 and ...* The Governor Performance Data, for 7C7070 Governor Group, shows only CHANGE LEVEL 05 and ...* The COMMENTS portion has information (instructions). ResultThis shows that the 7C6069 Governor Group has had factory changes that HAVE affected the Governor Performance Data as shown in this Instruction. ActionFollow the Information shown in the COMMENTS portion:APPLICATION BACK TO 1st PRODGovernor Assembly
After the governor is assembled, it MUST be operated on the 1U7326 Governor Calibration Bench to make the final adjustments. Some adjustments are required during assembly of the governor.Refer to Service Manual ... Disassembly And Assembly, for the correct tools and procedures to use when assembling a governor.Refer to the Parts Book for internal parts differences.Governor Calibration Bench and On-Engine Adjustment Information
Refer to SEHS8868, Using the 1U7326 Governor Calibration Bench for procedures and tools required to bench test the governor.Governor Calibration Bench Adjustment
All other governor adjustments, including adjustment of the Fuel Ratio Control, are to be made during bench (off-engine) testing.A preliminary low idle setting is made the during the