1998/01/26 Caterpillar

Improved Water Seal Reduces The Possibility Of Cylinder Head Joint Water Leaks {1100}

Usage:

3508 (7YG, 99W),
3508B (2GR),
3512 (4WJ, 96Z),
3512B (8BR),
3516 (2PK, 54Z),
3516B (7TR) Machine Engines

Description of Change: Improved water seals replaced the former water seals in the above engines for Caterpillar built machines. The improved water seals provide an increase in sealing force.

Adaptable To: The improved 126-1112 replaces the former 6I-1357 Water Seal and the 126-1113 replaces the former 6I-1356 Water Seal.The change is adaptable back to first production.

The improved 126-1112 and 126-1113 Water Seals reduce the possibility of cylinder head joint water leaks by providing a 40 percent increase in sealing force. The improved water seals contain a rigid plastic insert which more effectively loads the ends of each seal. The improved water seals help insure a good top deck to cylinder head seal that should seal even if the surface is rough.

NOTE: The 126-1112 and 126-1113 Water Seals are yellow in color, making them easier to see. The likelihood of a seal being omitted during assembly is reduced.

Caterpillar Information System:

1998/01/26 Explanation Of New Switch Operation For Kickout Positioner {5109}

1998/01/26 Service Repair Kits For Steering Column Group Available {4310}

1998/01/26 The 154-6732 Pump Kit Is Available To Help Service The Unit Injector Hydraulic Pump Group On 3408E (99C) And 3412E (80M) Machine Engines {1714}

1998/01/26 Individual Components Of Hydraulic Pumps Are Available As Separate Service Parts {5070}

1998/01/26 Improved Load Capacity Charts Are Model Specific {6400}

1998/01/26 098-5847 Handle Retainer Bracket In The 098-5853 Quick Hitch Group Is Now Serviced {6129}

1998/01/26 Adjustable Mounting Arrangement And Flexible Coupling For Hydraulic Pump Available {5062}

1998/01/26 New Washer-Retainers Increases Service Life Of Rolling Hoses {6460,5057}

1998/01/26 Serviceable Parts Available For Fuel Injection Pump Groups {1251}

1998/01/26 New Muffler Assembly And Support Brackets Available {1062}

1998/01/26 Washer Bottle Strap Now Available Through Parts Service {7306}

1998/01/26 Supplement For Rolling Torque Specification {3254,3258,3263}

1998/01/26 Be Sure To Correctly Tighten 1R-0712, 1R-0740, 1R-0749, 1R-0750, 1R-0751, 1R-0753, And 1R-0759 Fuel Filter Assemblies {1261}

1998/01/26 Caterpillar Electronic Technician (ET) Training Video Available {0374}

1998/02/02 New Seal Kit for Metering Pump Groups {4312}

1998/02/02 Updated Steering Pump Groups And Seal Kits {4312}

1998/02/02 Metering Pump And Seal Kit Part Numbers Available For Backhoe Loaders {4312}

1998/02/02 New Fan Group Improves Window Defrosting {7309}

1998/02/02 Special Instruction, REHS0172, "Off-Highway Tractor And Truck Front Strut Frame Casting Replacement", Is Now Available {0374,0755}

1998/02/02 New and Improved Wear Rings Prevent Binding Of Hoist Cylinder Group {5102}

1998/02/02 Correct Torque for Piston Retaining Bolts In Front Suspension Cylinder Group {7201}

1998/02/02 High Pressure Washer Available For Final Drives And Axle Housings Of Off-Highway Trucks {0680,4050,3260}

1998/02/02 Jacobs Engine Brake Parts Service Now Available {1129}

1998/02/02 Improvements To Brake Caliper Seals Prevent Leaks In High Temperature Applications {4256}