New Piston Ring Assemblies Give Improved Ring And Cylinder Liner Life{1215,1213}
Usage:
D9 Tractors;
594 Pipelayers;
All D353, D379, D398, D399 Engines
Description of Change: New piston ring assemblies (oil control) are used in the above products. The new ring assemblies use a different spring to decrease the ring pressure against the cylinder liner. This permits increased oil flow to the top piston ring area. The result is improved ring and cylinder liner life.
Adaptable As: The new 1W5061 Ring Assembly is in effect with the Serial Numbers shown in Chart A. Chart B has the ring groups which are available for parts service.
Caterpillar Information System:
1981/04/06 Correct Refill Capacity For Engine Oil{1318}
1981/04/06 Cooling System Cleaner Removes Rust And Corrosion{1350,1353,1354}
1981/04/06 Use Heat-Indication Products To Measure Parts Temperatures{0651}
1981/04/06 New Temperature Range Recommendation For Multi-Viscosity Oil In Power Shift Transmissions{3179,3155,3159}
1981/04/06 New Spacer And Plate Used In Transmission Lower Shaft Groups{3307}
1981/04/06 Woodward Governor Available For Parallel Generator Applications{1289,1264}
1981/03/30 Brass Plug Now Used Instead Of Steel Plug In Sea Water Aftercooler{1063}
1981/03/30 Electrical Information For EGR (Exhaust Gas Recirculation) Systems On 3208 Truck Engines So Equipped{1080}
1981/03/30 6V3150 Engine Pressure Group Gives Direct Indication Of Manifold Pressure{0651,1058}
1981/03/30 6V3197 Spacer, 6V3041 Tool Group Available For Use During Removal and Installation Of Piston Pin Bearings{0622,1219,1218,1214}
1981/03/30 Low Engine Temperatures: Install Check Valve{1353,1355,1370,1380}
1981/03/30 Check All Settings When Fuel Injection Pump Group Is Installed{1286,1264,1251,1253}
1981/04/06 Improve Use Of Engine Service Manual Microfiche{0374}
1981/04/13 Use 6V4058 Universal Extension To Remove And Install Starter Bolts{0612}
1981/04/13 New 6V3060 EGR System Tester Group Available{1080}
1981/04/13 Use Two Wrenches On Fuel Line Nuts{1254,1252}
1981/04/13 New Ahead Main Shaft Assembly Gives A Tighter Fit; Dimensions For The Fit Of Shafts And Gears{3300}
1981/04/13 Check Operation Of Hydramechanical Shutoff At Specific Intervals{7418,7525}
1981/04/13 FT1585 Plate Can Be Fabricated For Governor Spring Guide Replacement{0626}
1981/04/13 Correct Installation Of Seal Spacer In Gear-Type Hydraulic Pumps{5073}
1981/04/20 Different Check Valve Gives Faster Shifts{3313}
1981/04/20 Storage Compartments For Maintenance (Lubrication And Maintenance) Guides{7312}
1981/04/20 6V4020 Piston Ring Expander Group Available{0622,1215,1214}
1981/04/20 Use 6V4173 Clamping Bar Group On Hydraulic Hose Press{0624}