1994/03/01 Caterpillar

Improved 1R-0712 Fuel Filter Available{1261}

Usage:

3406, 3408, And 3176 Truck Engines

Description of Change: The improved 1R-0712 Fuel Filter has a new wider gasket seal designed to provide improved sealing.

Adaptable To: The part number of the improved 1R-0712 Fuel Filter has not changed. The improved filter can be identified by date code that is "inked" on to the outer shell of the filter. All 1R-0712 Fuel Filters with a date code of UMUUDE (12/11/93, 12NOV93) or later have the new wider gasket seal. The date code can be deciphered by comparing to the following:

Prior to installation, it is important to visually inspect the gasket seal to ensure it is clean and properly seated. If the seal does not appear to be properly seated, use hand pressure to make sure the seal is properly seated into the groove on the top of the filter before the filter is installed. Lubricate the seal with the fluid being filtered and install the filter on the filter base. Tighten the filter until the seal makes contact with the filter base. Then, tighten the filter an additional 1 turn.

Caterpillar Information System:

1994/03/01 New Seal Used In Air Lines Group{1058}

1994/02/01 New 7X-1715 Cable Assembly (Small, 40 Pin Breakout) Available{0779,1900}

1994/02/01 September 1993 Personality Module Release Improvements{1902}

1994/02/01 Remove Internal Components From 4P-8454 Cover Assembly{1309}

1994/02/01 New Turbocharger Models Have Left-Hand Threads On Compressor Nut And Turbine Shaft{1053,1052}

1994/01/01 List of Service Publications{0374}

1994/01/01 New Pedal Mounted Throttle Position Sensor Available{1913}

1994/01/01 Fuel Injection Pump Improvements{1251}

1994/01/01 New Piston Body Has Improved Bonding Between Iron Band And Aluminum Body{1214}

1994/01/01 Flywheel Housing to Cylinder Block Joint Improvements{1157,1201}

1994/01/01 Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}

1994/01/01 Possible Interference Problem With 9U-7241 Valve Spring Compressor Group{0703}

1994/03/01 Improved Ceramic Turbocharger Group Used{1052}

1994/03/01 Electromagnetic Fan Clutch Available{1359}

1994/03/01 The Ninth Edition Of The Lubricating Oils Data Book Is Available From The Engine Manufactures Association (EMA) {1318}

1994/04/22 New Power Steering Pump Drive Gear Used In Accessory Drive Group{1207}

1994/04/22 New Air Compressor Drive Gear Used In Accessory Drive Group{1207}

1994/04/22 Identification Of Intake And Exhaust Valves That May Be Used In Remanufactured Direct Injected 3400 Cylinder Heads{1105}

1994/04/22 Fuel Injection Pump Improvements{1251}

1994/04/22 Final Control Group (Personality Module) Update{1902}

1994/04/22 Service Tools For Electronic Controls{0781,0782}

1994/05/31 Date Code On 7000 Series Fuel Injection Nozzles; New Seals Used In 7000 Series Fuel Injection Nozzles {1254}

1994/05/31 New Oil Cooler And Filter Base Assembly And New Oil Cooler And Filter Base Group Have Stronger Mounting Flanges {1378,1306}

1994/06/24 New Intake And Exhaust Valves Used{1105,1100}