1997/06/09 Caterpillar

Improved Coolant Flow Switches Available {7425}

Usage:

All Machines Using The 3E-2030, 3E-6428, 3E-6430, 9X-3040, And 9X-7088 Coolant Flow Switch Groups.

Description of Change: The listed coolant flow switches have been improved with a new higher strength casting which should reduce the possibility of a leaky coolant flow switch.

Adaptable To: The improved 3E-2030, 3E-6428, 3E-6430, 9X-3040, and 9X-7088 Coolant Flow Switch Groups are effective with date code P48 with P representing year 1994 and 48 representing the 48th week of the year. The improved switches are adaptable to all earlier applications.

NOTE: There may be situations where coolant, when mixed with local water, can produce a corrosive solution that attacks the aluminum housing of the switch. This can cause coolant flow switch leaks. In these situations, it is recommended to use a premixed coolant designed to prevent this problem. See the chart for appropriate part numbers for the premixed coolant.

Caterpillar Information System:

1997/06/09 Mechanical Unit Fuel Injector Groups Spill Shield Changed {1290}

1997/05/26 Correct Orientation For 3E-8827, 9X-6796, 9X-9096, 107-7977, 117-1379, 121-4134, 121-4135, 125-9597, And 132-2156 Alternators During Installation{1405}

1997/05/26 Safety Manuals For Each Product Line Are Available{0353,0375}

1997/05/05 New Service Magazine Special Edition (Product Support Update-3500 Machine Engines) Available {1000}

1997/05/05 Machine Electrical Systems Schematics With New Format {1400}

1997/04/28 Improved Cylinder Liner Has Longer Service Life{1216}

1997/04/28 More Frequent S*O*S Oil Analysis Improves Component Life Cycle Management{7542,7500}

1997/04/14 Rugged, Full-Function, PC Workstation For Dealers And Customers Service Shops {7569}

1997/04/14 Subscriptions For Caterpillar's Electronic Technician (CAT ET) Software {1900,0781}

1997/04/14 New "Fuel System Reuse And Salvage Guides" Reference Manual Available {1250}

1997/04/07 Always Use The Maintenance Interval Schedule In The Operation And Maintenance Manual When Performing Maintenance; New Look To Maintenance Section {0374,0375,1000,7000}

1997/03/17 Special Instruction SEHS9824-01 Available For Cab Window Service Procedure; Provides New Adhesive Information For Improved Bonding Capabilities Under Cold Weather Conditions{7310}

1997/06/23 Improved 2-Pin Deutsch® DT Connector Now Used {7553}

1997/06/30 Dealer PC Hardware Purchase Recommendations For All Caterpillar Applications {7600,7601,1920}

1997/06/30 Certain Publications Are Now Printed On Demand {0374}

1997/07/07 Revised Special Instruction, SEHS9160, "Replacing The Spacer On The Cutter Wheel And Changing The Height Dimension Of The Cutter Wheel On tTe 4C-5084 Oil Filter Cutter" Is Available {0678,1261,1308,3004,3067,4070,5068,5092,5177}

1997/07/07 Governor Control Cover Assembly Includes New Seal And Improved Cover {1264}

1997/07/28 Required Maintenance Of Air Cleaner Dust Valves{1050,1051,1055,1068}

1997/07/28 Protection Of Unsealed Electrical Terminations For Machines Used In Corrosive Applications{1400}

1997/08/18 Lubricity Limit Added To Preferred Distillate Fuel Recommendation {1280,7568}

1997/08/18 Use Separate Sampling Pump For Oil and Coolant {7542,7577}

1997/08/18 "Date Updated" Displayed In Parts Manuals On The Service Information System (SIS) {7567}

1997/08/25 New Parts Manual Format Used For Certain Caterpillar Products{0374}

1997/09/01 Improvement Provides Better Sealing For Unit Injectors {1290}