1989/02/13 Caterpillar


Improved Valve Lifter Assemblies; Better Insert Retention{1112}

Usage:


D11N, 776B Tractors;
777B, 785, 789 Trucks;
3500 Family Of Engines

Description of Change: A new valve lifter assembly is used for all 3500 Engines. The new valve lifter assembly has the insert staked in four places instead of two places to provide better retention. The increased retention in the new lifter assembly reduces the probability of lost inserts.

Adaptable To: The new 9Y9587 Lifter Assembly is a direct replacement for the former 7W8121 Lifter Assembly, which is canceled. The 7N3421 Lifter Insert is now a serviced part for both the new 9Y9587 Lifter Assembly and the former 7W8121 Lifter Assembly.

Caterpillar Information System:

1989/02/13 New Nut In Fresh And Raw Water Pumps Has More Corrosion Resistance{1371}
1989/02/13 Cold Start Procedures For 3406 (PEEC) Truck Engines{1705}
1989/02/13 New Publication Available-"Coolant And Your Engine"{1395,0374,0375}
1989/01/30 New Head Gasket Available; Head Gasket Replacement Guidelines{1124,1216,1221}
1989/01/30 Do Not Weld Rods To Eyes, Straighten Rods, Or Build Up Rods With Weld On Any Steering Cylinders, Scraper Bowl Lift Cylinders, Or Truck Suspension Cylinders{4303,5303,7201}
1989/01/23 New Procedures To Adjust Woodward EGB29P Governor/Actuator Linkage{1265}
1989/01/23 New Crankshaft Seal Adapter O-Ring Seal Is Made Of Higher Temperature Material{1160,1161}
1989/01/23 Be Sure Battery Charger Connections Are Correct{1406}
1989/01/16 High Performance Maintenance Free Battery Available{1401}
1989/01/16 Improved Rod Seal Combinations Used In Hydraulic Cylinders{4303,5100,5200,5300,5450,5550}
1989/01/09 New Special Instruction Available - "Storage Procedure For Caterpillar Products"{1000,7000}
1989/01/09 Indexes For Special Instruction Microfiche Libraries{0374}
1989/02/20 Part Numbers For Relays And Clip In Electronic Modular Control Panel{4450,4469,7451}
1989/02/20 New Gasket Replaces O-Ring Seal On Manual Valve Group And Plug Group Used For Testing Cylinder Pressure{1101}
1989/02/27 Surface Marks On Roller Bearing Cages Are Not Cracks{7551}
1989/02/27 New Features And Enhanced Fault Codes Available In New PEEC Personality Modules{1707,1705}
1989/02/27 Updated 7X1830 SPM For 8T5282 3406B PEEC DDT Available{1707,1705}
1989/02/27 Troubleshooting 3406B (PEEC) Truck Engines Equipped With Power Demand Cruise Control (PDCC){1705}
1989/03/06 High Horsepower Standby Generator Set Engines{1000}
1989/03/06 New Engine Wall Charts Give Maintenance Management Recommendations{0374,0375,7500,7557,7580}
1989/03/06 New Bleed Screw Used On 7000 Series Fuel Injection Nozzles{1254}
1989/03/20 Elbow Fitting Available To Allow "Quick-Drain" Line To Oil Pan{1302,1307}
1989/03/20 Improved Magnet Used In Rack Assembly{1705,1286}
1989/03/20 Correct Torque For Bolts That Fasten Pulley To Stub Shaft In Radiator Group{1350}
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