Time Delay (Relay) Switches Should Be Tested Before They Are Returned For Warranty Claims
Usage:
All Marine, Industrial and Generator Set Engines
The 4W8471 Time Delay (relay) Switches used on the above engines, are being returned for warranty claims, as being defective. After bench testing, most have been shown to be in good working condition. Time delay switches that are suspected of being defective, must be tested before being returned to Caterpillar for warranty claims. Use the procedure given in the Service Manual, 3500 Series Engines, Electric Protective System Module, Form SENR2985, Page 43, Procedure F, to perform a bench test of the time delay (relay) switches.
Caterpillar Information System:
1986/02/01 High Silicates In Antifreeze
1986/02/01 New Oil Viscosity Recommendations For All 7200 Series Marine Transmissions
1986/02/01 Uprated 3500 Series Engines Use Stronger Pistons, New Connecting Rods And New Piston Pins
1986/02/01 Stronger Cylinder Heads Used
1986/02/01 Uprated 3500 Series Engines Now Available
1986/02/01 New Service Tools Available
1986/01/01 Improved Clutch Disc And Cooling Oil Flow
1986/01/01 Lubricate Clamp When Installing Unit Injector Assemblies
1986/01/01 Use Care When Handling Turbocharger Compressor Wheels
1986/01/01 Flange-Type Bushing Kits Available For Later Crankshaft Pulleys
1986/01/01 Fuel Sulfur Analyzer Available
1986/01/01 Gasket Leakage On Aftermarket Fuel Filters
1986/02/01 Extend Exciter Stator Life In Humid, Salty Environments
1986/02/01 5N563 Self-Excited SR4 Generators Use Different Type Regulator And A Power Autotransformer
1986/02/01 Oil Total Base Number (TBN) Test Kit Available
1986/02/01 New Cylinder Liner Available
1986/02/01 Special Instructions Packaged With Turbocharger Cartridge Repair Kits May Be Incorrect
1986/03/01 Nylon Seals Used On Lockwire To Seal Critical Areas; Parts Service Seals Available For NACD Dealers
1986/03/01 New 8T2998 Lubricant Available
1986/03/01 Improved Sleeve Bearing Used In Drive End Of Fuel Injection Pump Housing
1986/03/01 High Silicates In Antifreeze
1986/03/01 Engine Oil Filter Element Has Metal Wrapper Instead Of Paper Wrapper
1986/03/01 Screens Added To Inlet Air Manifolds
1986/03/01 New Fuel Injector Available To Reduce Smoke At Low RPM and Loads