Fuel Transfer Pump Improved{1256}
Usage:
3304B, 3306B, 3406B Engines In All Applications
Description of Change: Fuel transfer pumps on the above engines now use new valve assemblies and a new spacer in the piston. See illustration. The new valve assemblies have better life at low temperatures and less flow restriction. The new valve assembly in the piston requires a thicker spacer.
Location of new parts in transfer pump.
Adaptable To: The new pump parts are effective with the engines given in the chart.
The new parts can be used as direct replacements for the former parts.
Caterpillar Information System:
1985/10/07 Stronger Air Cleaner Support Assembly{1050,1051}
1985/10/07 Digital Electric Tachometer Group Available{7462}
1985/10/07 Check Height Of Locating Dowels Before Installing Cylinder Head{1201}
1985/10/07 O-Ring Seal Not Needed On Turbochargers{1052}
1985/10/07 Dust Can Cause Generator Set Vibration{4450}
1985/10/07 Two, New Top Dead Center Magnetic Transducers Available{0651,0653,1214,1250}
1985/10/07 New Water Cooled Exhaust Manifolds Available; Existing Water Cooled Exhaust Manifolds Can Be Strengthened Or Salvaged{1059}
1985/09/30 Conversion Group Available For Increased Power{0600}
1985/09/30 Torque Increase For Cylinder Head Bolts{1101}
1985/09/30 Restarting Engines Without A Fuel Priming Pump{1250,1258}
1985/09/30 Maximum Wear Limits Established For Camshaft Roller Followers{1209}
1985/09/23 List Of Mechanical Service Meters For Earlier 3500 Series Engines Using Mechanical Service Meters{1286}
1985/10/14 New Fuel Pressure Switch Available{7490,7332,1419}
1985/10/14 "Routine" Mid-Life Roll-Ins Of Main And Connecting Rod Bearings No Longer Recommended{1230,1203,1219}
1985/10/14 Recommendations For Cooling Systems And Cold Weather Operation{1350}
1985/10/21 Use Glycerine On Most O-Ring Seals {7555,1216,1050}
1985/10/21 Cylinder Head And Valve Rocker Arm Brackets Have Oil Supply Passages In A Different Location To Prevent Possible Oil Leakage Into Cooling System {1100,1102,1350}
1985/10/21 Engine Shuts Down Immediately After Start-Up {7400}
1985/10/28 What ROPS/FOPS Certification Means{7323,7325,7264,7266}
1985/10/28 Comparison Of Fuel Timing Tolerances For Field Settings{1250,1251,1281}
1985/10/28 Engine Information Plate Contains More Data; Use Of Performance Specifications{1250,7557}
1985/10/28 Higher Temperature Material Used In Camshaft Base Gasket{1113,1120}
1985/10/28 Check Fuel Injection Replacement Pump Installation{1251,1253,1257}
1985/10/28 New Marine Transmission Oil Cooler Group Available{3320}