1989/01/01 Caterpillar


New Screw Used In Brakesaver Water Lines Group

Usage:


3406B Truck Engines (8TC, 4MG) Equipped With BrakeSavers

Description of Change: A new allen head screw is used in place of the former hex head bolt in the BrakeSaver water lines group on 3406B Truck Engines. The illustration shows the location of the new allen head screw. In some cases the former hex head bolt could contact the new rubber end sheet oil cooler. The new screw will eliminate this problem.


Location of the new 6J0488 Screw (allen head).

Adaptable To: The new 6J0488 Screw is a direct replacement for the former 0S1594 Bolt, at the location shown in the illustration, in the 4W5184 Brakesaver Water Lines Group on 3406B Truck Engines. The new 6J0488 Screw is in effect with 3406B Truck Engines 8TC5232 and 4MG31626. The new 7W1713 Oil Cooler was in effect with 3406B Truck Engines 8TC2240 and 4MG13412.

Caterpillar Information System:

1989/01/01 Correct Timing Specification
1989/01/01 New Head Gasket Available; Head Gasket Replacement Guidelines
1988/12/01 New Mounting Bolts Used In Aftercooler Housings
1988/12/01 Rechargeable Portable Printer Available
1988/12/01 New Camshaft Used; Camshaft Installation Kit Available
1988/12/01 Larger Valve Springs Must Be Used With Williams Blue Ox ® 485 kPa (70 psi) Exhaust Brake; New Spring Compressor Group Available
1988/12/01 Revised Instructions For Installation of New Maintenance Free Batteries
1988/11/01 $25 Rebate For Members Of Caterpillar Truck Engine Owners Club (U.S. Only)
1988/11/01 New Liner Seat Insert Available
1988/11/01 Be Sure To Follow Cooling System Recommendations
1988/10/01 List of Service Publications
1988/10/01 New Service Tools Available
1989/01/01 Remove Fuel From Electronic Control Module (ECM) Before Shipping
1989/01/01 New Special Instruction Available - "Storage Procedure For Caterpillar Products"
1989/01/01 High Performance Maintenance Free Battery Available
1989/01/01 List Of Service Publications
1989/02/01 Troubleshooting 3406B (PEEC) Truck Engines Equipped With Power Demand Cruise Control (PDCC)
1989/02/01 Cold Start Procedures For 3406 (PEEC) Truck Engines
1989/02/01 New Publication Available- "Coolant And Your Engine"
1989/02/01 Surface Marks On Roller Bearing Cages Are Not Cracks
1989/03/01 New Features And Enhanced Fault Codes Available In New PEEC Personality Modules
1989/03/01 Updated 7X1830 SPM For 8T5282 3406B PEEC DDT Available
1989/03/01 Improved Magnet Used In Rack Assembly
1989/03/01 New Bleed Screw Used On 7000 Series Fuel Injection Nozzles
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