New Lockup Clutch Disc Used In Torque Converter{3102}
Usage:
776 ( 14H ),
776B ( 6JC ) Tractors;
777 ( 84A ),
777B ( 4YC ),
785 ( 8GB ),
789 ( 9ZC ) Trucks
Description of Change: A new lockup clutch disc is used in torque converters for the above machines. The new disc has a hardened core.
Adaptable To: The new 1T1835 Disc directly replaces the former 1T1240 Disc. The new discs are effective with torque converter serial numbers 99T191 (789), CM309B (785), and CR288B (776B, 777B).
Caterpillar Information System:
1989/07/24 Longer Hinge Brackets Prevent Hoe-type Bucket Deformation{6503}
1989/07/24 Tightening Idler Retention Bolts May Require Torque-Turn Method{4159}
1989/07/24 Steering Diverter "Flip-Flop" Valve Now Drains To Steering Hydraulic Tank{3179,4107,4120}
1989/07/24 New Publication Available, "Ultrasonics Guide"{0374}
1989/07/24 New Publication Available, "Metal Spray Guide"{0374}
1989/07/17 Steel Fittings Used On Air Hoses For The Cutter Clutch{8201}
1989/07/17 Axle Shafts With Larger Diameter Threads Require 1U8848 Installer{0722,3259,3278,4056}
1989/07/17 Lubricate Front Axle Every 500 Hours Or Three Months{3282,7061}
1989/07/10 New Viton Rubber Seals Used{1302,1307,1312,1306,1317,1200}
1989/07/10 New Mounting Brackets And Side View Mirrors{7319}
1989/07/10 New Air Conditioning Duct Has Better Heat Resistance{7320}
1989/07/10 Serviceable Parts For Hydraulic Pumps{5070,5073}
1989/07/24 New Hydraulically-Actuated Belly Guard Available As An Attachment{7151,7153,7154,7158,7182,7185}
1989/07/24 Use Correct Grade Shear Bolt For Rotor Drive{5632}
1989/07/24 Check The Radiator Fan Spider Assembly When Doing Yearly General Maintenance{1356}
1989/07/24 Engine Oil Coolers With New Rubber End Sheet Available For Parts Service{1378}
1989/07/24 Stronger Spacer Plate Prevents Cracking{1221,1350}
1989/07/24 Stronger Support For Turbocharger Exhaust Elbow And New Coupling Used{1052,1059}
1989/07/24 Improved Control Rod Assembly Used In Fuel Injection Control Groups{1298}
1989/08/07 New Modulating Relief Valve Used In Transmission Hydraulic Controls {3152}
1989/08/07 New Transmission Control Switch Used In Transmission Hydraulic Controls {3168,3171}
1989/08/07 New Yoke And Retainer Used In Input Transfer Gears {3159}
1989/08/07 Left Hand Rear View Mirror Improved {7319}
1989/08/07 Pressure Reducing Valve Improves Torque Control {4350,4352}