1990/09/01 Caterpillar

New Oil Temperature Regulators Used In Oil Cooler Lines Groups

Usage:

3600 Family Of Engines

Description of Change: New oil temperature regulators are used in the oil cooler lines groups. Oil could cause deterioration of a seal around the temperature bulb on the former oil temperature regulators. This could result in increased oil temperatures. The new oil temperature regulators will eliminate this problem.

Adaptable To: The new 7E6210 Oil Temperature Regulator is a direct replacement for the former 4W4011 Oil Temperature Regulator in the 1W0803 and 2W3329 Oil Cooler Lines Groups. The new 7E6210 Oil Temperature Regulator is used for 85°C (185°F) oil to bearing temperature applications. Also, the new 4P0301 Oil Temperature Regulator is available for 74°C (165°F) oil to bearing temperature applications. The new regulators are adaptable to all earlier engines.

The current recommended service interval for oil temperature regulators is 6000 hours or one year, whichever occurs first.

Caterpillar Information System:

1990/09/01 Oil Level Gauge Assembly (Dipstick) Guide Tube Length And Gauge Markings May Produce Erratic Oil Level Readings

1990/09/01 Be Sure To Operate Prelube Pump When Engine Is Rotated With Barring Group

1990/09/01 New Bearings And Identification Used In Engine Oil Pump Group

1990/09/01 Improved Actuator Assemblies Used

1990/09/01 Be Sure Pinion Bearing Is Correctly Installed In Governor Drive Housing

1990/09/01 Improved Fuel Injector Control Groups Reduce Control Linkage Wear

1990/09/01 New 3161 Governor Has Low Idle Offset

1990/09/01 Improved 2301A Control Groups Used In Generator Set Applications

1990/09/01 Additional Service Tools Available For Servicing Oil And Fuel Filters During Engine Operation

1990/09/01 New Clips And Washer Used In Fuel Filter Lines Groups

1990/09/01 New Camshaft Groups Have Improved Camshaft Flange

1990/09/01 New Idler Bearings And Gears Prevent Cavitation Erosion In Front Gear Train

1990/09/01 New Oil Temperature Regulator Used In Oil Cooler Lines Groups

1990/09/01 Improved Water Line Clamps

1990/09/01 Improved Air Motor Lubricator Group

1990/10/01 4C6600 Battery Voltmeter For Determining Battery Percent Of Charge

1990/10/01 Correct Light Bulb Replacement For The 8T9290 Borescope; New Light Bulb Used

1990/10/01 New 4C6090 Multichannel Temperature Selector Available To Aid In Diagnosing Low Power Complaints

1990/10/01 New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads

1990/10/01 New Temperature Regulators; Regulator Service Hours Changed

1990/10/01 Sealing Threads On Switches And Sensors That Are Grounded Through The Case

1990/10/01 Improved 3T2357 Horn Switch, 3T3453 Starting Aid Switch, 3T3947 Start Switch, 3T8514 Test Switch Assemblies

1990/10/01 Engine Service Training Literature Uses New Form Number

1990/10/01 List of Service Publications