New Washer Used In Fuel Transfer Pump Group {1256}
Usage:
3500 Family of Engines
Description of Change: A new washer is used under the relief valve cap on the fuel transfer pump group used on the 3500 Family of Engines. See the illustration. The former washer was made of steel. The new washer is made of soft copper which will provide a better seal between the relief valve cap and the pump body. This will help prevent fuel leakage at the relief valve cap.
Adaptable As: The new soft copper 7W3556 Washer is a direct replacement for the former steel 5L5180 Washer in the 1N4478 Fuel Transfer Pump Group on the 3500 Family of Engines.
Location of new 7W3556 Washer.
Caterpillar Information System:
1987/03/30 Oversize Bearings For Turbocharger Center Housings Available {1053,1052}
1987/03/30 Piston Cooling Jets No Longer Used In Some Applications {1200}
1987/03/30 New Service Tools Available {0600}
1987/03/23 New Clamps And Grommets For Turbocharger Oil Lines{1300,1307,1052}
1987/03/23 Gasket Removed From Flywheel Housing Cover Groups{1157}
1987/03/23 Improved Fuel Transfer Pump Cover; Weep Hole Moved{1255}
1987/03/23 Pleasure Craft Cruise Kits Available{1000}
1987/03/23 Some Components Of The Transmission Mounting Group For Allison AT540 And AT545 Transmissions Are No Longer Serviced By Caterpillar{3279,1013,3009}
1987/03/23 Identification Of External Terminals On Alternators{1405,1406,1400}
1987/03/23 Dispenser Available For Shop Towels{0600}
1987/03/23 5P957 And 5P3514 Coolant And Battery Tester{0786,1395,1401}
1987/03/23 Cooling System Conditioner{1395,1350}
1987/03/30 Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts {1104,1103}
1987/03/30 Oversize Piston Ring Seal Available For Clutch Group {3302,3300}
1987/04/06 Stop Engine If There Is A Turbocharger Bearing Failure{1052,1318}
1987/04/06 Improved Governor Performance{1264,1250}
1987/04/06 Engine Identification Plate Information For 3406B (PEEC) Truck Engines{0782,1250}
1987/04/06 Rerate Plates And 4W5140 Engine Information Plate Available For Use When Rerating 3406B (PEEC) Truck Engines{0782,1250}
1987/04/06 New Idler Shaft And Sealing Washers Used In Front Gears And Accessory Drives{1206,1207}
1987/04/06 Longer Bolts With Spacers Now Used On Exhaust Manifolds{1059}
1987/04/13 Checking Injector Synchronization On Engines Equipped With New 11.0 mm Injectors{1290}
1987/04/13 Initial Start Of Engine Using An EGB29P Governor/Actuator After Filling With Oil{1264}
1987/04/20 New Pipe Used Between Turbocharger And Aftercooler; Improved Turbocharger Compressor Housing Has Two Retaining Bolt Holes{1050,1061,1079}
1987/04/20 Serviceable Parts For New Fuel Ratio Control; Pressurize Control To Set Rack On 3406B Engines In Driltech Drill Rigs{1257,1258,1264}