Improved Fuel Priming Pump Used{1258}
Usage:
All Caterpillar Engines Which Use The 4W788 Fuel Priming Pump Assembly
Description of Change: The fuel priming pump has been improved on Caterpillar engines. A new roll pin is used to secure the fuel priming pump handle to the plunger. The roll pin resists loosening better than the former solid pin.
Adaptable To: The improved 4W788 Pump Assembly is available as a direct replacement for the former pump assembly. The part number did not change.
Caterpillar Information System:
1987/04/20 Fuel Injection Timing Adjustment{1250}
1987/04/20 Material Changed In Exhaust and Inlet Valves{1105}
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}
1987/04/20 New Pipe Used Between Turbocharger And Aftercooler; Improved Turbocharger Compressor Housing Has Two Retaining Bolt Holes{1050,1061,1079}
1987/04/13 Initial Start Of Engine Using An EGB29P Governor/Actuator After Filling With Oil{1264}
1987/04/13 Checking Injector Synchronization On Engines Equipped With New 11.0 mm Injectors{1290}
1987/04/06 Longer Bolts With Spacers Now Used On Exhaust Manifolds{1059}
1987/04/06 New Idler Shaft And Sealing Washers Used In Front Gears And Accessory Drives{1206,1207}
1987/04/06 Rerate Plates And 4W5140 Engine Information Plate Available For Use When Rerating 3406B (PEEC) Truck Engines{0782,1250}
1987/04/06 Engine Identification Plate Information For 3406B (PEEC) Truck Engines{0782,1250}
1987/04/06 Improved Governor Performance{1264,1250}
1987/04/06 Stop Engine If There Is A Turbocharger Bearing Failure{1052,1318}
1987/04/20 Use Improved Heat Start Switch{1416}
1987/04/20 Moisture Cover Available For Start Switches{1416,1424}
1987/04/20 Microfiche Library Cross References Caterpillar Part Numbers With Expanded Product Line Part Numbers{7567}
1987/04/20 New Service Tools Available{0600}
1987/05/04 Products Equipped With Diagnostic Connectors Require Less Time For Electrical Troubleshooting{1400}
1987/05/04 Alternator "R" Terminal Wire Assembly Available For Wiring Harness Repair{1408}
1987/05/04 Alternator/Generator Output Test On The Engine{1401,1404,1405,1406}
1987/05/04 Testing The Starter On The Engine{1401,1450}
1987/05/04 New Rear Crankshaft Seal Groups Have Longer Service Life{1161,1202}
1987/05/11 Three Electrical And Electronic Training Aids Now Have Caterpillar Part Numbers Instead Of Form Numbers {0115}
1987/05/11 Service Parts Available For Air-Regulated 8T5190 Wrench Group {0700,4202}
1987/05/11 Black Light Leak Detection Kit Available For Oil, Fuel and Cooling Systems {0774,1250,1300,1350}