New Check Valve Used With Higher Temperature Capacity{1063,1355}
Usage:
D11N (4HK),
776C (2TK),
784B (5RK) Tractors;
777C (4XJ),
785B (6HK),
789B (7EK),
793B (1HL) Trucks;
994 (9YF) Loaders;
Reference: Service Magazine; September 13, 1993; Page 10; "Check Valves Require Periodic Maintenance".
Description of Change: A new check valve is available for the water regulator housing and the separate circuit aftercooling. The new check valve has a higher temperature capability and is black. The former valve was white.
Adaptable To: The new 111-4374 Check Valve Assembly is a direct replacement for the former 4W-3108 Check Valve Assembly. The new valve still requires maintenance and should be replaced at each overhaul. The former check valve is canceled.
Caterpillar Information System:
1994/03/28 Ensure Brake Hose Is Clear Of Engine Oil Pan{4257}
1994/03/28 Improved Leaf Spring Used In the Transmission Control Group Improve Service Life{3156}
1994/03/28 Exhaust Pipe Extension Changed{1061}
1994/03/28 New Location For Oil Pressure Switch{7485}
1994/03/28 Mounting Plate Available For Hydraulic Pump Mounts{5070}
1994/03/28 Latches May Not Secure Radiator Guard Properly, Without Correct Panel Position{7155}
1994/03/21 The Ninth Edition Of The Lubricating Oils Data Book Is Available From The Engine Manufactures Association (EMA) {1318}
1994/03/21 New Seal Used In Air Lines Group {1058}
1994/03/21 New Automatic Shut Off Switch For Vibratory System Available {5653}
1994/03/21 New Cab Mount (Bushing) Assembly Reduces Cab Vibration When Turning Machine {7325,7266}
1994/03/21 Higher Output Alternator Used {1405,1406,1400}
1994/03/21 Improved Hose Assembly Available {4257}
1994/03/28 Improved 1R-0712 Fuel Filter Provides Improved Sealing{1261}
1994/04/04 New Spider Assembly Used In Suction Fan Group{1356}
1994/04/04 Procedure For Checking And Adjusting Brake Charging, Hoist And Steering Times{4257,5051,5057}
1994/04/04 New High Capacity Axle Bearings Use For Special Applications{4208,3260,7551}
1994/04/04 Refrigerant Supply Tank Fitting Sizes{1809,0647,1807}
1994/04/04 Updated List Of Charts And Decals Available For Lubrication And Maintenance Intervals{0374,0375,7557}
1994/04/04 Identification Of Intake And Exhaust Valves That May Be Used In Remanufactured Direct Injected 3400 Cylinder Heads{1105}
1994/04/11 9U7370 Belt Tension Tester{4197}
1994/04/11 New Fuel Level Sender For Metal Fuel Tanks Relocated From The Top To The Side Of The Tank{7481}
1994/04/11 Additional Service Parts For The 7R-3520 Quick Change Stabilization Rotor{6636}
1994/04/11 New Engine Throttle Cable Minimizes Overstroke Of Governor Linkage{1265}
1994/04/11 New Vibra Arm Plate For Compactor Drums Prevents Bending At Mounting Holes{6606}