1994/03/28 Caterpillar

Improved 1R-0712 Fuel Filter Provides Improved Sealing{1261}

Usage:

Caterpillar Machines Powered By 3406, 3408, 3412, And 3176 Machine Engines

Description of Change: An improved 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:

1994/03/21 The Ninth Edition Of The Lubricating Oils Data Book Is Available From The Engine Manufactures Association (EMA) {1318}

1994/03/21 New Seal Used In Air Lines Group {1058}

1994/03/14 Articles Pertaining To Commercial Engines Or Truck Engines {0374}

1994/02/28 New Turbocharger Models Have Left-Hand Threads On Compressor Nut And Turbine Shaft {1053,1052}

1994/02/28 New Retaining Compound Is Available {0649}

1994/02/28 Soldering Iron Available For Field Use {0709,1400}

1994/02/21 Servicing Lighted Rocker Switches {1435}

1994/02/07 Fuel Injection Pump Improvements{1251}

1994/02/07 Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}

1994/02/07 New Turbocharger Groups And New Turbocharger Cartridge Groups Have Improved Thrust Bearing And Turbine Ring Seal{1052,1053}

1994/02/07 12 And 24 Volt DC Work Lights Are Available{0600}

1994/02/07 New Piston Body Has Improved Bonding Between Iron Band And Aluminum Body{1214}

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

1994/04/11 Speed Sensor Available With Improved Reliability{1907}

1994/04/25 Lubricant Will Ease Installation Of Secondary Radial Seal Air Filter Element {1054}

1994/04/25 Service Tools For Electronic Controls {0781,0782}

1994/05/16 Fuel Dilution In The Engine Oil{1290,1318}

1994/05/23 Date Code On 7000 Series Fuel Injection Nozzles; New Seals Used In 7000 Series Fuel Injection Nozzles{1254}

1994/05/30 Three And Five Piece Wheel Rims Reduce The Possibility Of The Tire Bead Not Seating Correctly{4209,4202}

1994/06/20 Installation Procedure For 1R-0716 Engine Oil Filter{1318}

1994/06/27 New Assembly Procedure For Hydraulic Pump Groups With Double Shaft Seals And A Weep Hole Between The Seals Helps Prevent Contamination Through The Weep Hole{5073}

1994/07/04 New Cylinder Head Gasket, Spacer Plate And Head Bolts Used; New Cylinder Liner Projection Measurement Method; New Cylinder Head Torque Sequence; Improved Coolant Flow (Cylinder Heads) {1124,1221,1216,1101}

1994/07/11 Different Fuel Filter Available To Prevent Premature Wear On Fuel Injection Pump Plungers And Barrels{1261,1251}

1994/08/08 SOS Allowable Soot Level Changed{1318}